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N-2040 REV. D ENGLISH 10 / 2008
PROPERTY OF PETROBRAS
Preparation, Presentation, and Management of Electrical Design Documents
CONTEC Comissão de Normalização
Técnica
SC-06
Electricity Revalidation
Revalidated in 02/2010.
N-2040 REV. D ENGLISH 09 / 2010
PROPERTY OF PETROBRAS 1 page
Preparation, Presentation, and Management of Electrical
Design Documents
CONTEC Comissão de
Normalização Técnica
SC-06
Electricity 1st Amendment
This is the 1st Amendment to PETROBRAS N-2040 REV. D, and it is used to alter the text of the Standard in the parts indicated below: NOTE 1 The news pages with the performed amendments are placed in its corresponding positions. NOTE 2 The amended pages, indicated the date of the amendment, are placed at the end of this
standard, in chronological order, and shall not be used. - Section 2: (1st Amendment) Exclusion of the PETROBRAS N-2062. - Subsection: 7.1.1.1. (1st Amendment) Citation "in PETROBRAS N-2062" was replaced by "Annex D". - Include of subsection: 7.1.1.5, 7.1.1.6, 7.1.1.7 and 7.1.1.8. (1st Amendment) - Subsection 7.2.3.1: (1st Amendment) Citation "in PETROBRAS N-2062" was replaced by "Annex D". - Include of subsection: 7.2.3.5, 7.2.3.6, 7.2.3.7 and 7.2.3.8. (1st Amendment) - Inclusion in Annex D. (1st Amendment)
N-2040 REV. D ENGLISH 10 / 2008
PROPERTY OF PETROBRAS 64 pages, Index of Revisions and WG
Preparation, Presentation, and Management of Electrical
Design Documents
Procedure
This Standard replaces and cancels its previous revision.
The CONTEC - Authoring Subcommittee provides guidance on the interpretation of this Standard when questions arise regarding its contents. The Department of PETROBRAS that uses this Standard is responsible for adopting and applying the sections, subsections and enumerates thereof.
CONTEC Comissão de Normalização
Técnica
Technical Requirement: A provision established as the most adequate and which shall be used strictly in accordance with this Standard. If a decision is taken not to follow the requirement (“non-conformity” to this Standard) it shall be based on well-founded economic and management reasons, and be approved and registered by the Department of PETROBRAS that uses this Standard. It is characterized by imperative nature.
Recommended Practice: A provision that may be adopted under the conditions of this Standard, but which admits (and draws attention to) the possibility of there being a more adequate alternative (not written in this Standard) to the particular application. The alternative adopted shall be approved and registered by the Department of PETROBRAS that uses this Standard. It is characterized by verbs of a nonmandatory nature. It is indicated by the expression: [Recommended Practice].
SC - 06
Copies of the registered “non-conformities” to this Standard that may contribute to the improvement thereof shall be submitted to the CONTEC - Authoring Subcommittee.
Proposed revisions to this Standard shall be submitted to the CONTEC - Authoring Subcommittee, indicating the alphanumeric identification and revision of the Standard, the section, subsection and enumerate to be revised, the proposed text, and technical/economic justification for revision. The proposals are evaluated during the work for alteration of this Standard.
Electricity
“The present Standard is the exclusive property of PETRÓLEO BRASILEIRO S.A. - PETROBRAS, for internal use in the Company, and any reproduction for external use or disclosure, without previous and express authorization from the owner, will imply an unlawful act pursuant to the relevant legislation through which the applicable responsibilities shall be imputed. External circulation shall be regulated by a specific clause of Secrecy and Confidentiality pursuant to the terms of intellectual and industrial property law.”
Introduction
PETROBRAS Technical Standards are prepared by Working Groups - WG
(consisting specialized of Technical Collaborators from Company and its Subsidiaries), are commented by Company Units and its Subsidiaries, are approved by the Authoring Subcommittees - SCs (consisting of technicians from the same specialty, representing the various Company Units and its Subsidiaries), and ratified by the Executive Nucleus (consisting of representatives of the Company Units and its Subsidiaries). A PETROBRAS Technical Standard is subject to revision at any time by its Authoring Subcommittee and shall be reviewed every 5 years to be revalidated, revised or cancelled. PETROBRAS Technical Standards are prepared in accordance with PETROBRAS Technical Standard N-1. For complete information about PETROBRAS Technical Standards see PETROBRAS Technical Standards Catalog.
N-2040 REV. D ENGLISH 10 / 2008
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Summary
Foreword.................................................................................................................................................. 6
1 Scope................................................................................................................................................... 6
2 Normative References......................................................................................................................... 6
3 Terms and Definitions........................................................................................................................ 11
4 Acronyms and Abbreviations............................................................................................................. 13
5 General Conditions............................................................................................................................ 15
5.1 General................................................................................................................................. 15
5.2 Conceptual Electrical Design ............................................................................................... 15
5.2.1 Presentation Phases of Conceptual Electrical Design................................................. 15
5.2.2 Documentation Issued by Designer in Conceptual Electrical Design.......................... 16
5.3 Basic Electrical Design......................................................................................................... 16
5.3.1 Presentation Phases of Basic Electrical Design .......................................................... 16
5.3.2 Documentation Issued by Designer in Basic Electrical Design ................................... 16
5.4 Electrical Front-End Engineering Design (FEED) ................................................................ 17
5.4.1 Presentation Phases of Electrical Front-End-Engineering Design .............................. 17
5.4.2 Documentation Issued by Designer in Electrical Front-End Engineering Design........ 18
5.5 Detailed Electrical Design .................................................................................................... 19
5.5.1 Presentation Phases of Detailed Electrical Design...................................................... 19
5.5.2 Safety Requirements in Electrical Design Indicated in Regulatory Standard No. 10 (NR-10) ........................................................................................................................ 19
5.5.3 Documentation Prepared and Issued by Designer in the Detailed Electrical Design.. 21
5.5.4 Documentation Prepared and Issued by Manufacturers in Detailed Electrical Design 24
5.5.5 Delivery of Design Modeled in 2D CAD, 3D CAD or CAE Applications in the As-Built Condition...................................................................................................................... 24
5.5.6 Delivery of Computer Files of Specific Applications for Electrical Design Studies ...... 25
6 Automation, Management, Modeling, Simulation, and Presentation of Electrical Design Drawings and Documents in 2D CAD, 3D CAD or CAE ................................................................................... 26
6.1 General................................................................................................................................. 26
6.2 Automatic Revision Indication and Control Systems ........................................................... 28
6.3 Electrical Design Documentation Management System...................................................... 28
6.4 Real-Time Digital Modeling and Simulation of Transient and Steady States of Electrical Power and Protection Systems ........................................................................................... 29
7 Specific Requirements for Preparation and Presentation of Electrical Design Documents.............. 31
7.1 Conceptual, Basic, and Front-End Engineering Design....................................................... 32
7.1.1 Lists of Electrical Loads ............................................................................................... 32
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7.1.2 Technical and Economic Feasibility Studies of the Electrical System......................... 32
7.1.3 Short-Circuit Calculation Sheets .................................................................................. 32
7.1.4 Load Flow Studies........................................................................................................ 33
7.1.5 Descriptive Memoranda of Electrical System Philosophies......................................... 33
7.1.6 Descriptive Memorandum with the Basic Characteristics of the Electrical Installations34
7.1.7 Area Classification Studies .......................................................................................... 34
7.1.8 One-Line Diagrams...................................................................................................... 35
7.1.9 Typical Functional Diagrams and Logic Diagrams for Programming of Digital Equipment.................................................................................................................... 36
7.1.10 Basic Electrical Design Data Books........................................................................... 36
7.2 Detailed Electrical Design .................................................................................................... 37
7.2.1 Design Schedules ........................................................................................................ 37
7.2.2 Lists of Design Documents .......................................................................................... 37
7.2.3 Lists of Electrical Loads ............................................................................................... 37
7.2.4 Lists of Cables and/or Circuits ..................................................................................... 38
7.2.5 Lists of Conduits and/or Cable Tray Systems.............................................................. 38
7.2.6 List of Input and Output (I/O) Points of Digital and Automation Equipment................. 39
7.2.7 Lists of Materials .......................................................................................................... 39
7.2.8 Descriptive Memoranda and/or Calculation Sheets..................................................... 39
7.2.8.1 Sizing of Equipment ............................................................................................. 39
7.2.8.2 Normal, Essential, and Emergency Power Distribution Systems ........................ 40
7.2.8.3 Cable Pulling........................................................................................................ 41
7.2.8.4 Grounding Systems ............................................................................................. 41
7.2.8.5 Normal and Emergency Lighting Systems........................................................... 41
7.2.8.6 Electrical Protection Coordination and Selectivity ............................................... 41
7.2.8.7 Electrical and Process Safety Interlocking Systems............................................ 42
7.2.8.8 Signaling and Alarm Systems.............................................................................. 42
7.2.8.9 Lightning Protection System (LPS)...................................................................... 43
7.2.8.10 Short-Circuit Studies .......................................................................................... 43
7.2.8.11 Load Flow Studies ............................................................................................. 43
7.2.8.12 Industrial Electrical Heat Tracing Systems ........................................................ 43
7.2.8.13 Smoke Detection and Alarm System in Panel Rooms, Cable Rooms, Battery Rooms, Transformer Rooms, and Control Rooms............................................ 43
7.2.8.14 Electrical Panel Arc Flash Studies..................................................................... 43
7.2.8.15 Construction, Assembly, Commissioning, and Field Testing Services.............. 44
7.2.9 Detailed Design Drawings............................................................................................ 44
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7.2.9.1 Area Classification Studies .................................................................................. 44
7.2.9.2 One-Line Diagrams.............................................................................................. 44
7.2.9.3 Multi-Wire Diagrams ............................................................................................ 45
7.2.9.4 Functional Diagrams ............................................................................................ 46
7.2.9.5 Interconnection wiring Diagrams ......................................................................... 47
7.2.9.6 Interconnection Block Diagrams of Major Equipment and Subsystems of the Electrical System................................................................................................. 47
7.2.9.7 Layouts of Equipment in Substations and Control Rooms - Plans, Sections, and Details.................................................................................................................. 48
7.2.9.8 Exposed Structures of Equipment in Outdoor Substations - Plans, Sections, and Details.................................................................................................................. 48
7.2.9.9 Equipment Bases................................................................................................. 49
7.2.9.10 Diagram of Loads and Weights on Structures - Plans....................................... 49
7.2.9.11 Main Electrical Network - General Plan or Key Plan ......................................... 49
7.2.9.12 Underground Electrical Networks - Plans .......................................................... 50
7.2.9.13 Underground Electrical Networks - Profiles ....................................................... 51
7.2.9.14 Underground Electrical Networks - Sections ..................................................... 51
7.2.9.15 Underground Manholes - Constructive Characteristics ..................................... 52
7.2.9.16 Exposed Pull Points for Underground Electrical Networks - Details ................. 52
7.2.9.17 Underground Manholes - Cable Arrangement................................................... 52
7.2.9.18 Overhead Electrical Networks - Plans ............................................................... 53
7.2.9.19 Overhead Electrical Networks - Details ............................................................. 53
7.2.9.20 Exposed Installations - Plans............................................................................. 53
7.2.9.21 Distribution of Circuits in Channels on the Floor of the Substation or Control Room ................................................................................................................. 54
7.2.9.22 Typical Assembly Details - Distribution of Power and Control, Lighting, Grounding, LPS, Attachment and Supports ...................................................... 54
7.2.9.23 Power and Lighting Circuit Distribution Plans.................................................... 55
7.2.9.24 LPS Plans .......................................................................................................... 55
7.2.9.25 Grounding Plans ................................................................................................ 56
7.2.10 Cost Estimates for Materials, Equipment, and Assembly, Testing, and Commissioning Services........................................................................................... 56
7.2.11 Technical Specifications of Electrical Equipment and Materials................................ 57
7.2.12 Electrical Equipment Data Sheets ............................................................................. 57
7.2.13 Material Requisitions.................................................................................................. 58
7.2.14 Technical Reports ...................................................................................................... 58
7.2.15 Electrical Equipment Design and Manufacturing Schedules ..................................... 58
7.2.16 Lists of Documents of Electrical Equipment .............................................................. 59
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7.2.17 Electrical Equipment Drawings .................................................................................. 59
7.2.18 Electrical Equipment Test Reports............................................................................. 59
7.2.19 Electrical Equipment Transportation, Storage, Assembly, Operation, and Maintenance Instruction Manuals ............................................................................. 60
7.2.20 Verification of Supplier Documents (VDF) ................................................................. 60
7.2.21 Technical Report of Detailed Electrical Design.......................................................... 61
7.2.22 Updating of Electrical Design Documentation in As-Built Condition.......................... 61
7.2.23 Registration and Deployment by the Designer of the Design Documentation of Suppliers and Conformity Certificates in the Electronic Technical Document System of the User................................................................................................................. 62
7.2.24 Electrical Detailed Design Data Books ...................................................................... 62
8 List of Sections of this Standard with Indication of Recommended Practices .................................. 63
9 List of Topics of this Standard for Determining the Scope and Coverage of Services for Preparation, Presentation, and Management of Electrical Documents and Designs ................................................ 64
10 List of Applicable Design Documents to be Prepared by Designer ................................................ 64
______________
/FOREWORD
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Foreword This Standard is the English version (issued in 03/2009) of PETROBRAS N-2040 REV. D 10/2008. In case of doubt, the Portuguese version, which is the valid document for all intents and purposes, shall be used. 1 Scope 1.1 This Standard specifies the minimum conditions required for the preparation, presentation, and management of electrical design documents for PETROBRAS facilities. 1.2 This Standard is applicable to the preparation and presentation of designs and documents for new facilities to be built as well as existing facilities to be modified or expanded. 1.3 The user of the design shall define to the designer the recommended practices indicated in this Standard that shall be considered mandatory for each design. See Annex A of this Standard. 1.4 The designer and user of the design shall define, by mutual agreement, depending on the size or complexity of each design, the applicability of the various project stages specified in this Standard, such as conceptual design, front-end engineering design (FEED), detailed design, and As-Built design. See Annex B of this Standard. 1.5 This Standard is comprehensive and is based on complete or large electrical system designs. For each design in particular, depending on its size or complexity, the user of the design shall define the applicable electrical design documents to be prepared and presented by the designer, based on the requirements set forth in this Standard. See Annex C of this Standard. 1.6 This Standard applies to electrical designs started as of its date of issuance. 1.7 This Standard contains Technical Requirements and Recommended Practices. 2 Normative References The following referenced documents are indispensable for the application of this Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
CONMETRO Resolução No. 12 - Regulamentação Metrológica e Quadro Geral de Unidades de Medida; Norma Regulamentadora No. 10 (NR-10) - Segurança em Instalações e Serviços em Eletricidade; Norma Regulamentadora No. 17 (NR-17) - Ergonomia; Norma Regulamentadora No. 20 (NR-20) - Líquidos Inflamáveis e Combustíveis; Norma Regulamentadora No. 23 (NR-23) - Proteção Contra Incêndios; Norma Regulamentadora No. 26 (NR-26) - Sinalização e Segurança; PETROBRAS N-381 - Execution of Drawing and other General Technical Documents;
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PETROBRAS N-898 - Graphical Symbols and Designations for Electric Drawings; PETROBRAS N-1521 - Identification of Industrial Equipment; PETROBRAS N-1600 - Construction, Assembly and Pre-Commissioning of Electrical Networks; PETROBRAS N-1614 - Construction, Mounting and Conditioning of Electrical Equipment; PETROBRAS N-1674 - Design of Layout for Petroleum Refinery; PETROBRAS N-1710 - Coding of Technical Engineering Documents; PETROBRAS N-1711 - Detalhes de Caixa de Enfiação (“Manholes - EMH”) para Uso em Rede Elétrica Subterrânea; PETROBRAS N-1857 - Electrical Resistance Trace Heating System for Industrial Applications - Design, Installation, Inspection, and Maintenance Procedures; PETROBRAS N-1913 - Material Requisition Preparation; PETROBRAS N-1973 - Material Requisition for Electrical Equipment; PETROBRAS N-1996 - Design of Electrical Network in Concrete Envelopes and with Cables Directly the Ground; PETROBRAS N-1997 - Electrical Networks in Cable Tray Systems - Design, Installation, and Inspection; PETROBRAS N-1998 - Overhead Power Grid Project; PETROBRAS N-2006 - Lighting Systems Design; PETROBRAS N-2039 - Substation Design; PETROBRAS N-2064 - Issuance and Revision of Design Documents; PETROBRAS N-2154 - Classificação de Áreas para Instalações Elétricas em Regiões de Perfuração e Produção; PETROBRAS N-2155 - Data List for Area Classification; PETROBRAS N-2166 - Classification of Sites for Electrical Installations in Petroleum Refineries; PETROBRAS N-2167 - Classification of Areas for Electrical Installations at Petroleum, Gas and Derivate Transportation Facilities; PETROBRAS N-2222 - Design of Safety Grounding for Offshore Units; PETROBRAS N-2641 - Electrical Resistance Trace Heating System for Industrial Applications; PETROBRAS N-2706 - Presentation of Area Classification Plan; PETROBRAS N-2830 - Safety Criteria for Environments and Services in Electric Panels and Equipment with Electric Arc Potential; PETROBRAS N-2850 - Floor Gratings, Tray Systems, and Guardrails Made of Composite Material;
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ABNT NBR 5101 - Iluminação Pública; ABNT NBR 5410 - Instalações Elétricas de Baixa Tensão; ABNT NBR 5413 - Iluminância de Interiores; ABNT NBR 5419 - Proteção de Estruturas Contra Descargas Atmosféricas; ABNT NBR 9441 - Execução de Sistemas de Detecção e Alarme de Incêndio; ABNT NBR 14039 - Instalações Elétricas de Média Tensão de 1.0 kV a 36.2 kV; ABNT NBR 15615 - Equipamentos Elétricos para Utilização em Presença de Poeira Combustível - Seleção e Instalação (IEC 61241-14 MOD); ABNT NBR 17505-1 - Armazenamento de Líquidos Inflamáveis e Combustíveis - Parte 1: Disposições Gerais; ABNT NBR IEC 60034-5 - Máquinas Elétricas Girantes - Graus de Proteção Proporcionados pelo Projeto Integral de Máquinas Elétricas Girantes (Códigos IP) - Classificação; ABNT NBR IEC 60079-0 - Equipamentos Elétricos para Atmosferas Explosivas - Parte 0: Requisitos Gerais; ABNT NBR IEC 60079-10 - Equipamentos Elétricos para Atmosferas Explosivas - Parte 10: Classificação de Áreas; ABNT NBR IEC 60079-13 - Equipamentos Elétricos para Atmosferas Explosivas - Parte 13: Construção e Utilização de Ambientes ou Edificações Protegidas por Pressurização; ABNT NBR IEC 60079-14 - Equipamentos Elétricos para Atmosferas Explosivas - Parte 14: Projeto, Seleção e Montagem de Instalações Elétricas em Atmosferas Explosivas; ABNT NBR IEC 60079-16 - Equipamentos Elétricos para Atmosferas Explosivas - Parte 16: Ventilação Artificial para Proteção de Casas de Analisadores; ABNT NBR IEC 60079-17 - Equipamentos Elétricos para Atmosferas Explosivas - Parte 17: Inspeção e Manutenção em Atmosferas Explosivas; ABNT NBR IEC 60079-20 - Equipamentos Elétricos para Atmosferas Explosivas - Parte 20: Dados de Gases ou Vapores Inflamáveis Referentes à Utilização de Equipamentos Elétricos; ABNT NBR IEC 60529 - Graus de Proteção Providos por Invólucros de Equipamentos Elétricos (Códigos IP); ABNT NBR IEC 61241-10 - Equipamentos Elétricos para Uso na Presença de Poeiras Combustíveis - Parte 10: Classificação de Áreas onde Poeiras Combustíveis Estão ou Possam Estar Presentes; ABNT NBR IEC 61892-1 - Unidades Marítimas Fixas e Móveis - Instalações Elétricas - Parte 1: Requisitos e Condições Gerais; ABNT NBR IEC 62271-200 - Conjunto de Manobra e Controle de Alta-Tensão - Parte 200: Conjunto de Manobra e Controle de Alta-Tensão em Invólucro Metálico para Tensões Acima de 1,0 kV até e Inclusive 52,0 kV; IEC 60079-11 - Explosive Atmospheres Part 11: Equipment Protection by Intrinsic Safety “i”; IEC 60092-352 - Electrical Installations in Ships - Part 352: Choice and Installation of Electrical Cables;
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IEC 60092-401 - Electrical Installations in Ships - Part 401: Installation and Test of Completed Installation; IEC 60287-1-1 - Electric Cables - Calculation of the Current Rating - Part 1-1: Current Rating Equations (100 % Load Factor) and Calculation of Losses; IEC 60364 - Low Voltage Electrical Installations; IEC 60617 - Graphical Symbols for Diagrams; IEC 60909-0 - Short-Circuit Current Calculation in Three-Phase A.C. Systems - Part 0: Calculation of Currents; IEC 61363-1 - Electrical Installations of Ships and Mobile and Fixed Offshore Units - Part 1: Procedures for Calculating Short-Circuit Currents in Three-Phase a.c.; IEC 61850-1 - Communication Networks and Systems in Substations - Part 1 - Introduction and Overview; IEC 61850-2 - Communication Networks and Systems in Substations - Part 2 - Glossary; IEC 61850-3 - Communication Networks and Systems in Substations - Part 3: General Requirements; IEC 61850-4 - Communication Networks and Systems in Substations - Part 4: System and Project Management; IEC 61850-5 - Communication Networks and Systems in Substations - Part 5: Communication Requirements for Functions and Device Models; IEC 61850-6 - Communication Networks and Systems in Substations - Part 6: Configuration Description Language for Communication in Electrical Substations Related to IEDs; IEC 61850-7.1 - Communication Networks and Systems in Substations - Part 7-1: Basic Communication Structure for Substation and Feeder Equipment - Principles and Models; IEC 61850-7.2 - Communication Networks and Systems in Substations - Part 7-2: Basic Communication Structure for Substation and Feeder Equipment - Abstract Communication Service Interface (ACSI); IEC 61850-7.3 - Communication Networks and Systems in Substations - Part 7-3: Basic Communication Structure for Substation and Feeder Equipment - Common Data Classes; IEC 61850-7.4 - Communication Networks and Systems in Substations - Part 7-4: Basic Communication Structure for Substation and Feeder Equipment - Compatible Logical Node Classes and Data Classes; IEC 61850-8.1 - Communication Networks and Systems in Substations - Part 8-1: Specific Communication Service Mapping (SCSM) - Mappings to MMS (ISO 9506-1 and ISO 9506-2) and to ISO-IEC 8802-3; IEC 61850-9.1 - Communication Networks and Systems in Substations - Part 8-1: Specific Communication Service Mapping - Sampled Values Over Serial Unidirectional Multidrop Point to Point Link; IEC 61850-9.2 - Communication Networks and Systems in Substations - Part 9-2: Specific Communication Service Mapping (SCSM) - Sampled Values Over ISO-IEC 8802-3; IEC 61850-10 - Communication Networks and Systems in Substations - Part 10 - Conformance Testing;
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IEC 61892-2 - Mobile and Fixed Offshore Units - Electrical Installations Part 2: System Design; IEC 61892-3 - Mobile and Fixed Offshore Units - Electrical Installations - Part 3: Equipment; IEC 61892-4 - Mobile and Fixed Offshore Units - Electrical Installations - Part 4: Cables; IEC 61892-5 - Mobile and Fixed Offshore Units - Electrical Installations - Part 5: Mobile Units; IEC 61892-6 - Mobile and Fixed Offshore Units - Electrical Installations - Part 6: Installation; IEC 61892-7 - Mobile and Fixed Offshore Units - Electrical Installations - Part 7: Hazardous Areas; IEC 62305-1 - Protection Against Lightning - Part 1: General Principles; IEC 62305-2 - Protection Against Lightning - Part 2: Risk Management; IEC 62305-3 - Protection Against Lightning - Part 3: Physical Damage to Structures and Life Hazard; IEC 62305-4 - Protection Against Lightning - Part 4: Electrical and Electronic Systems within Structures; ANSI IEEE Std C37.2 - Standard Electrical Power System Device Function Numbers and Contact Designations; ANSI IEEE Std C37.91 - Guide for Protective Relay Applications to Power Transformers; ANSI IEEE Std C37.96 - Guide for AC Motor Protection; ANSI IEEE Std C37.97 - Guide for Protective Relay Applications to Power System Buses; ANSI IEEE Std C37.101 - Guide for Generator Ground Protection; ANSI IEEE Std C37.102 - Guide for AC Generator Protection; ANSI IEEE Std C37.110 - Guide for the Application of Current Transformers Used for Protective Relaying Purposes; ANSI IEEE Std C37.111 - Common Format for Transient Data Exchange (COMTRADE) for Power Systems; ANSI IEEE Std 80 - Guide for Safety in AC Substation Grounding; ANSI IEEE Std 141 - Recommended Practice for Electric Power Distribution for Industrial Plants IEEE Red Book; ANSI IEEE Std 142 - Recommended Practice for Grounding of Industrial and Commercial Power Systems IEEE Green Book (Color Book Series); ANSI IEEE Std 242 - Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems IEEE Buff Book (Color Book Series); ANSI IEEE Std 519 - Recommended Practice and Requirement for Harmonic Control in Electric Power Systems; ANSI IEEE Std 1100 - Recommended Practice for Powering and Grounding Electronic Equipment IEEE Emerald Book (Color Book Series); ANSI IEEE Std 1531 - Guide for Application and Specification of Harmonic Filters;
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ANSI IEEE Std 1584 - Guide for Performing Arc-Flash Hazard Calculations Contact; API RP 14 FZ - Recommended Practice for Design and Installation of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1 and Zone 2 locations; API RP 505 - Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone 1, and Zone 2; ASTM F 1506 - Standard Test Method for Water Retention of Hydraulic Cement - Based Mortars and Plasters; ASTM F 1891 - Standard Guide for Determination of a Survival Curve for Antimicrobial Agents Against Selected Microorganisms and Calculation of a d-Value and Concentration Coefficient; ASTM F 1958 - Standard Guide for Sensory Claim Substantiation; ASTM F 1959 - Standard Guide for Requests for Proposals Regarding Medical Transcription Services for Healthcare Institutions; ASTM F 2178 - Standard Specification for Asphalt Glass Felt Used in Roofing and Water Proofing; IMO MODU CODE - Code for the Construction and Equipment of Mobile Offshore Drilling Unit; NFPA 20 - Standard for the Installation of Stationary Pumps for Fire Protection; NFPA 30 - Flammable and Combustible Liquids Code; NFPA 70 - National Fire Protection Association, National Electrical Code; NFPA 70E - National Fire Protection Association, Standard for Electrical Safety in the Workplace; NFPA 497 - Recommended Practice for the Classification of Flammable Liquids, Gases, or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas; NFPA 110 - Standard for Emergency and Standby Power Systems; NFPA 780 - Standard for the Installation of Lightning Protection Systems.
NOTE For documents referred in this Standard and for which only the Portuguese version is
available, the PETROBRAS department that uses this Standard should be consulted for any information required for the specific application.
3 Terms and Definitions For the purposes of this Standard the terms and definitions indicated in 3.1 to 3.13 are adopted. 3.1 2D CAD stands for Two-Dimensional (2D) Computer-Aided Design, designating a design prepared in a computer in a Two-Dimensional (2D) format.
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3.2 3D CAD stands for Three-Dimensional (3D) Computer-Aided Design, designating a design prepared in a computer in a Three-Dimensional (3D) format. 3.3 CAE stands for Computer-Aided Engineering, designating an engineering study or design prepared in a computer. 3.4 Technical and Economic Feasibility Study (TEFS) process of obtaining technical, economic, legal, financial, and environmental information organized and condensed into a report referred to as “Technical and Economic Feasibility Study”, the main purpose of which is to assist in decision making on new investments and in the selection of design execution options. 3.5 Basic Project Information (“Informações Básicas do Empreendimento” - IBE) for electricity a series of basic electrical information and design bases developed at the initial stage of the scope definition phase of a project, prepared by the user of the design, covering data, guidelines, requirements, procedures, and all other pieces of information needed for the development of the project stages, such as: conceptual design, basic design, front-end engineering design (FEED), detailed design, construction, assembly, testing, commissioning, pre-operation, assisted startup, among others. 3.6 designer person, team or company responsible for carrying out electrical design development work in the conceptual design, basic design, front-end engineering design (FEED), detailed design, and As-Built updating stages. 3.7 “basic” electrical design a series of necessary and sufficient technical information and documents, which defines the basic and conceptual characteristics of an electrical system for the preparation of the detailed design. The basic electrical design shall be developed considering the design criteria prepared for the project. 3.8 “conceptual” electrical design a series of studies and analyses conducted during the Conceptual TEFS in order to assist in the generation and selection of alternatives. The conceptual electrical design shall be developed considering the basic electrical information for the project. 3.9 As-Built design detailed design duly revised incorporating all modifications made in the system during the construction, assembly, commissioning, and assisted operation phases.
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3.10 “detailed” electrical design a series of necessary and sufficient technical information and documents, the contents of which substantiate the supply, construction and assembly, commissioning, pre-operation, operation, inspection, and maintenance phases of the electrical system, considering the design criteria prepared for the project. 3.11 Electrical Front-End Engineering and Design (FEED) a front-end engineering design prepared based on the complete and consolidated basic design, which is primarily intended to improve the precision of the cost estimate. 3.12 TAG identifies, through an alphanumeric code, electrical equipment, components, devices or circuits. 3.13 user of the design operating unit, business unit, management or final client responsible for specifying requirements, bases, and criteria for the preparation of each design in particular and for final approval of the documentation to be prepared by the designer. 4 Acronyms and Abbreviations For the purposes of this Standard the acronyms and abbreviations listed below are applicable:
ART - Annotation of Technical Responsibility; ATPV - Arc Thermal Performance Value; AVR - Automatic Voltage Regulator; CAD - Computer Aided Design; CAE - Computer Aided Engineering; TBB - Terminal Block Box; ICR - Integrated Control Room; LCR - Local Control Room; MCC - Motor Control Center; CDC - Load Distribution Center; COMTRADE - Common Format for Transient Data Exchange; CPM - Critical Path Method; SPD - Surge Protection Devices; EDMS - Electronic Document Management System; EPL - Equipment Protection Level;
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TEFS - Technical and Economic Feasibility Study; FEED - Front-End Engineering Design; GOOSE - Generic Object Oriented Substation Events; GPS - Global Positioning System; HH - Handhole; IAC - Internal Arc Classified; IBE - Basic Project Information; IED - Intelligent Electronic Device; MMI - Man-Machine Interface; MH - Manhole; OLTC - On Load Tap Changer; POL - Project On-Line; QGU - General Table of Units; PERT - Program Evaluation and Review Technique; PES - Process Emergency Shutdown; PLC - Programmable Logic Controller; RM - Material Requisition; SCMD - Distributed Monitoring and Control System; DCS - Distributed Digital Control System; SIGEM - Integrated Project Management System; LPS - Lightning Protection System; TAC - Field Acceptance Tests; TAF - Factory Acceptance Tests; CT - Current Transformer; PT - Potential Transformer; TRV - Transient Recovery Voltage; RTU - Remote Terminal Unit; UPS - Uninterruptible Power System; VAC - Ventilation and Air Conditioning; VDF - Verification of Supplier Documentation.
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5 General Conditions 5.1 General 5.1.1 Any item not covered by the PETROBRAS standards indicated shall comply with the applicable ABNT standards. In case the item is not covered by an ABNT standard, the requirements of the applicable IEC or ISO standard shall be met. 5.1.2 The basic electrical information contained in the IBE, if presented by the user of the design, and the descriptive memorandum with the basic characteristics of the electrical installations shall be used for the direct development of all project stages, including:
a) conceptual electrical design; b) basic electrical design; c) detailed electrical design.
5.1.3 The documents comprising the electrical design shall be prepared in accordance with the provisions of the applicable standards indicated in Section 2 of this Standard. 5.1.4 The units used in the documents comprising the electrical design shall be those of the official metric system, Metric System (MS), with standardized abbreviations, prefixes and suffixes. Other units are accepted if they are included in QGU, annexed to CONMETRO resolution No. 12, which contains provisions on the use of the MS in Brazil. When metallic (rigid or flexible) conduits and their accessories are used, their nominal diameters may be identified in inches. 5.1.5 Unless otherwise indicated, the language used in the preparation and presentation of electrical designs of PETROBRAS shall be Brazilian Portuguese. 5.1.6 The requirements set forth in this Standard are applicable not only to new projects, but also to designs involving expansion and refurbishment of existing facilities. 5.1.7 The documents referring to the electrical design, including not only those prepared or revised by the designer, but also those drawn up by manufacturers and/or suppliers, shall be numbered and identified according to the requirements set forth in PETROBRAS N-1710, unless otherwise indicated in the design criteria prepared by the user of the design for each case in particular. 5.1.8 Electrical equipment shall be identified with a TAG according to the requirements indicated in PETROBRAS N-1521, unless otherwise indicated in the design criteria prepared by the user of the design, for each case in particular. 5.2 Conceptual Electrical Design 5.2.1 Presentation Phases of Conceptual Electrical Design Unless otherwise indicated in the contract guidelines, the conceptual electrical design documents shall be prepared and presented in distinct phases according to the purposes for which they are being issued. It will be necessary to consider, at least, the issuance phases for:
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a) preliminary documents; b) documents for comments; c) documents for approval; d) documents for development of designs of other disciplines.
5.2.2 Documentation Issued by Designer in Conceptual Electrical Design The conceptual electrical design shall be comprised of the following documents, unless otherwise indicated in the contract guidelines:
a) lists of normal, essential, and emergency electrical loads; b) technical and economic feasibility studies of the electrical system; c) descriptive memoranda of the philosophies adopted for the electrical design, such as
power distribution, normal, essential, and emergency power supply systems, grounding, types of protection of equipment for installation in hazardous locations, lighting, protection, automation, measurement, interlocking, industrial electrical trace heating, signaling and alarm, and lightning protection.
5.3 Basic Electrical Design 5.3.1 Presentation Phases of Basic Electrical Design Unless otherwise indicated in the contract guidelines, the documents of the basic electrical design shall be prepared and presented in distinct phases according to the purposes for which they are being issued. It is necessary to consider, at least, the issuance phases for:
a) preliminary documents; b) documents for comments; c) documents for approval; d) documents for development of designs of other disciplines.
5.3.2 Documentation Issued by Designer in Basic Electrical Design The basic electrical design shall be comprised of the following documents, unless otherwise indicated in the contract guidelines:
a) list of design documents; b) design and document issuance schedule; c) lists of electrical loads in the normal, essential, and emergency categories; d) basic one-line diagrams; e) typical logic and/or functional diagrams; f) data list containing the parameters for the main electrical equipment and circuits of the
installation, such as: data for generators, transformers, motors, panels, frequency converters, reactors, capacitor batteries, rectifiers, storage batteries, cables etc. The parameters presented in this data list shall be obtained, in this basic design stage, from typical data available in standards and in technical literature. These technical references shall be indicated on this data list;
NOTE This data list shall be obtained from an integrated database compatible with all applications
used in the electrical studies. The format of this database shall be in accordance with the requirements of each project.
g) load flow study report, contemplating the maximum, medium, and minimum load
scenarios of the electrical system;
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h) short-circuit study report, contemplating the scenarios leading to the highest fault values to be used for sizing the main equipment of the plant;
i) report on studies on voltage drop during startup of motors, considering normal, essential, and emergency generation scenarios. In this basic design stage, simplified modeling of the electrical system is permitted the need for modeling voltage and speed controls associated with synchronous electrical machines;
j) report on the evaluation of the electromechanical stability of the system, which shall, in this basic design stage, identify the situations leading to loss of synchronism of the electrical system, both during steady-state operation (small disturbances) and during transients (short circuits, load shedding, motor reacceleration, loss of generation etc.), so as to assist in more detailed studies in the subsequent stages of the design;
k) electromagnetic transient evaluation report, which shall, in this basic design phase, identify transient situations, usually from the standpoint of overvoltages likely to occur in the electrical system, such as: energization of transformers, interruption of small inductive currents in circuit breakers and contactors, transient recovery voltages in circuit breakers, so as to assist in more detailed studies in the subsequent stages of the design;
l) report on studies of harmonics introduced into the electrical system, in installations containing sources of harmonic distortions, such as loads driven by frequency converters, UPS, and capacitor batteries. In this basic design stage, an estimate shall be made of the likely consequences of the presence of harmonic currents in the electrical system, such as: overheating of equipment, overvoltages resulting from resonant circuits, the need for filters etc. In this harmonic study, the requirements indicated in ANSI IEEE Std 519 and ANSI IEEE Std 1531 shall be considered;
m) report on studies of real-time simulation of transient and steady-state states of the electrical power system;
NOTE The main objective of the studies listed in g) to m), in this basic design stage, is to orient the
planning of the electrical system of the installation and the sizing of parameters of the main equipment and circuits, to be refined in the subsequent stages. This database shall be used for the subsequent front-end engineering design (FEED) phase.
n) Data Sheets of the main electrical equipment; o) technical engineering specifications of equipment and systems; p) drawings and documents of preliminary physical installations of electrical systems and
equipment, including substations, panel rooms, cable rooms, control rooms, motors, lighting systems, grounding, and routing of exposed and underground conduits and of power and control circuits;
q) descriptive memoranda for the detailed electrical design, such as power distribution, normal, essential, and emergency power supply systems, grounding, lighting, protection, automation, measurement, interlocking, industrial electrical heat heating, signaling and alarm and lightning protection;
r) preliminary studies of hazardous areas containing explosive atmospheres, including the preparation of lists of process data, definition of extents of hazardous areas, groups of flammable gases or combustible dusts and temperature classes. These studies shall contain the descriptive memorandum of risk assessments, the criteria used for the selection of types of equipment protection and the equipment protection levels (EPL) for explosive atmospheres;
s) electrical basic design Data Books containing all documents generated. 5.4 Electrical Front-End Engineering Design (FEED) 5.4.1 Presentation Phases of Electrical Front-End-Engineering Design Unless otherwise indicated in the contract guidelines, the electrical FEED documents shall be prepared and presented in distinct phases according to the purposes for which they are being issued. It will be necessary to consider, at least, the following issuance phases:
a) preliminary documents;
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b) documents for comments; c) documents for approval; d) documents for development of designs of other disciplines.
5.4.2 Documentation Issued by Designer in Electrical Front-End Engineering Design The electrical front-end engineering design shall be comprised of the following documents, unless otherwise indicated in the contract guidelines:
a) list of design documents; b) design and document issuance schedule; c) lists of electrical loads in the normal and emergency categories; d) basic one-line diagrams; e) typical logic and/or functional diagrams; f) data list containing the parameters of the main electrical equipment and circuits of the
installation, such as: data for generators, transformers, motors, panels, frequency converters, reactors, capacitor batteries, rectifiers, storage batteries, cables etc. The parameters presented in this data list shall be obtained, in this front-end engineering stage, from previous consultations with manufacturers. In the case of lack of information from manufacturers, typical data available in standards and in technical literature shall be used. These technical references, including the documents received from manufacturers, shall be indicated in this data list;
NOTE This data list shall be obtained from integrated databases compatible with all applications
used in the electrical studies. The format of these databases shall be in accordance with the requirements of each project.
g) load flow study report, contemplating the maximum, medium, and minimum load
scenarios of the electrical system; h) short-circuit study report, contemplating the scenarios leading to the highest fault values
to be used for sizing the main equipment of the installation; i) report on studies of voltage drop during startup of motors, considering scenarios with
normal, essential, and emergency generation. In this front-end engineering design stage, simplified modeling of the electrical system is permitted, without the need for modeling of voltage and speed controls associated with synchronous electrical machines;
j) electromechanical stability evaluation report for the system, which shall, in this front-end engineering design stage, identify the situations leading to loss of synchronism of the electrical system, both during steady-state operation (small disturbances) and during transients (short circuits, load shedding, motor reacceleration, loss of generation etc.), so as to assist in more detailed studies in the subsequent stages of the design;
k) electromagnetic transient evaluation report, which shall, in this front-end engineering design stage, identify transient situations, normally from the standpoint of overvoltages likely to occur in the electrical system, such as: energization of transformers, interruption of small inductive currents in circuit breakers and contactors of medium-voltage switchgear, transient recovery voltages in medium-voltage circuit breakers, so as to assist in more detailed studies in subsequent stages of the design;
NOTE In electrical systems containing 13,8 kV generators, a preliminary study report on TRV in
circuit breakers of medium-voltage switchgear shall be prepared. l) report on studies of harmonics introduced into the electrical system, in installations
containing sources of harmonic distortion, such as loads driven by frequency converters, UPS, and capacitor batteries. In this front-end engineering design stage, an assessment shall be made of the likely consequences of the presence of harmonic currents in the electrical system, such as overheating of equipment, overvoltages resulting from resonant circuits, provision for installation of filters, if necessary, etc. In this harmonic study, the requirements indicated in ANSI IEEE Std 519 and ANSI IEEE Std 1531 shall be considered;
m) report on preliminary assessment of the protections of the electrical system, the main purposes of which, in this front-end engineering design stage, are to point out the current transformer saturation trend and adapt the protection philosophy of the basic design to the operating conditions of the installation;
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n) report on real-time simulation studies of transient and steady states of the electrical power system;
NOTE The studies listed in g) to n) are primarily intended, in this front-end engineering design
stage, for consolidation of the basic design, critical assessment of the parameters of the main electrical equipment, assessment of reflections on the electrical system resulting from the progress of the design of other disciplines (process and mechanical), assessment of the feasibility of expansions of the electrical system, definition of operational configurations, and feasibility of the beginning of the purchase process of major equipment.
o) Data Sheets of the main electrical equipment; p) technical engineering specifications of equipment and systems; q) drawings and documents of preliminary physical installations of electrical systems and
equipment, including substations, panel rooms, cable rooms, control rooms, motors, lighting systems, grounding, and routing of exposed and underground conduits and power and control circuits;
r) updating of preliminary studies of hazardous areas containing explosive atmospheres prepared in the basic design.
5.5 Detailed Electrical Design It shall be comprised of 2 sets of documents. The first one is to be prepared and issued by the designer and the second one by the manufacturers and suppliers. The 2 groups of documents shall be prepared and presented in parts and in distinct phases during the development of the design. 5.5.1 Presentation Phases of Detailed Electrical Design Unless otherwise indicated in the contract guidelines, the detailed electrical design documents shall be prepared and presented in distinct phases according to the purposes for which they are being issued. It will be necessary to consider, at least, the preparation and issuance phases for:
a) preliminary documents; b) documents for comments; c) documents for approval; d) documents for development of designs of other disciplines; e) documents for purchase of equipment; f) documents for construction and assembly; g) “as-purchased” and/or “As-Built” documents; h) basic electrical information for the project.
5.5.2 Safety Requirements in Electrical Design Indicated in Regulatory Standard No. 10 (NR-10) The safety requirements indicated in regulatory standard No. 10 (NR-10) shall be met by the electrical design. 5.5.2.1 The electrical design shall obligatorily specify devices for disconnection of circuits having means for preventing re-energization, for warning signs with indication of operating condition. 5.5.2.2 The electrical design shall, to the maximum possible extent, consider the installation of a simultaneous action disconnection device, allowing the application of means for preventing circuit re-energization.
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5.5.2.3 The electrical design shall consider the space safe, with respect to the sizing and location of its components and external influences, at the time of operation and performance of construction and maintenance work. 5.5.2.4 Electrical circuits with different purposes, such as: normal, essential, and emergency power supply, communication, signaling, control, and electric traction circuits, shall be identified and installed separately, except when technological development allows sharing, with due respect for the design definitions indicated in the Descriptive Memorandum of the design. 5.5.2.5 The electrical design shall define the configuration of the grounding system and whether or not there will be a need for interconnection between the neutral conductor and the protection conductor and the connection to the ground of non-current carrying parts. 5.5.2.6 Whenever technically viable and necessary, disconnecting devices incorporating fixed means for equipotentialization and grounding of the disconnected circuit shall be designed. 5.5.2.7 Every electrical design shall provide for conditions for the adoption of temporary grounding, with a view to meeting safety requirements at the time of deenergization for interventions in power circuits, such as during assembly, commissioning or maintenance. 5.5.2.8 The electrical design shall comply with the provisions in the regulatory standards for Health and Safety at Work, the official technical regulations stipulated, and be signed by a legally qualified professional. 5.5.2.9 The electrical design shall ensure that the facilities provide workers with suitable lighting and a safe work position according to regulatory standard No. 17 (NR-17). 5.5.2.10 Provision shall be made in the electrical design for electrical installations with suitable safety signs intended for warning and identification, in accordance with the provisions of regulatory standard no. 26 (NR-26) so as to satisfy the following situations, among others:
a) identification of electrical circuits; b) locking and blocking of switching and control devices and systems; c) access restrictions and prevention; d) area delimitations; e) signaling of circulation areas, public road areas, vehicle areas, and load handling areas; f) signaling of energization prevention; and g) identification of equipment or circuit prevented from being energized.
5.5.2.11 The electrical design shall consider that the areas containing electrical installations or equipment, such as substations, panel rooms, cable rooms, and control rooms, shall be provided with fire and explosion protection, in accordance with the provisions in regulatory standard No. 23 (NR-23). 5.5.2.12 The Descriptive Memorandum for the electrical design shall contain, at least, the following safety items, in accordance with the requirements of regulatory standard No. 10 (NR-10):
a) specification of characteristics relating to protection against electrical shock, burns, and other additional risks;
b) indication of position of devices for switching electrical circuits: (Green - “D”, “Desligado” and Red - “L”, “Ligado”);
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c) description of system used for identification of electrical circuits and equipment, including
devices for switching, control, protection, interlocking, of conductors and of the equipment and structures themselves, defining how those indications shall be physically applied to the components of the installations;
d) recommendations on restrictions and warnings regarding access of individuals to components of the installations;
e) applicable precautions in the light of external influences; f) the functional principle of protection devices contained in the design intended for the
safety of individuals; g) description of compatibility of protection devices with the electrical installation.
5.5.3 Documentation Prepared and Issued by Designer in the Detailed Electrical Design The designer shall prepare and present, during the various development stages of the detailed electrical design, at least, the documents listed below, unless the complete list of documents is not required due to the size of the design, which shall be decided by PETROBRAS:
a) design and document issuance schedule; b) data list containing the parameters of the main electrical equipment and circuits of the
installation, such as: data for generators, transformers, motors, panels, frequency converters, reactors, capacitor batteries, rectifiers, storage batteries, cables etc. The parameters presented in this data list shall be obtained from the certified and approved documentation presented by manufacturers. The numbering of this documentation shall be indicated in this data list;
NOTE This data list shall be obtained from integrated databases compatible with all applications
used in the electrical studies. The format of these databases shall be in accordance with the requirements of each project.
c) reports of the following electrical studies:
— load flow, considering the maximum, medium, and minimum flow scenarios of the electrical system;
— short circuit, considering the scenarios leading to the highest fault values to be used for sizing the main equipment of the installation, as well as the scenarios leading to the lowest short-circuit current levels, which are used in the protection coordination and selectivity study;
— protection coordination and selectivity, including verification of the saturation trend of protection current transformers used in panels and indication of settings of the various protection functions at all voltage levels of the electrical system;
NOTE The information on parameterization and configuration of protection relays and IEDs
contained in this coordination and selectivity study shall be presented according to the format, parameterization, and coding of the various manufacturers of protection relays and IEDs according to their respective manuals.
— voltage drop during startup of large machines and electric motors, considering normal,
essential, and emergency generation scenarios. Use shall be made in this detailed design stage of models of voltage and speed regulators associated with synchronous electrical machines supplied by the respective manufacturers;
— electromechanical stability, contemplating the scenarios determined in this detailed design phase and the models of voltage and speed regulator associated with the synchronous electrical machines, supplied by the respective manufacturers. Steady-state angular stability studies shall be performed, including small disturbances that occur during normal operation of the electrical system, such as inputs and outputs of load blocks, and under transient conditions, including short-circuits, load shedding, motor reacceleration, loss of generation etc.;
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— electromagnetic transients, contemplating the scenarios determined in this detailed
design stage and covering simulations of transformer energization, interruption of small inductive currents in circuit breakers and contactors of medium-voltage switchgear, TRVs in medium-voltage circuit breakers etc., so as to allow the analysis of results obtained usually from the standpoint of overvoltages likely to occur in the electrical system;
— harmonics introduced into the electrical system, in installations containing sources of harmonic distortions, such as: loads driven by frequency converters, UPS, and capacitor batteries. In this detailed design stage, the necessary electrical equipment and filters shall be sized according to the results presented. In this harmonic study, the requirements indicated in ANSI IEEE Std 519 and ANSI IEEE Std 1531 shall be considered;
— arc-flash, which shall determine, based on the voltage level, on the distance from the operator to the fault point, on the short-circuit levels (maximum and minimum) and on the protection activation times, the amount of heat and the classes of IEDs against electric arcs;
— report on real-time simulation studies of transient and steady states of the electrical power system;
NOTE According to the size of the detailed design, it may be necessary to conduct and revise these
studies more than once. At first, it will be necessary to prepare and issue reports on studies allowing confirmation of the results obtained during the previous design stage (basic or FEED). With the progress of the design, and acquisition of certified data of equipment and updated data of loads, circuits, the studies may need to be revised. After the commissioning phase, when all necessary data are available, the final revisions of the studies shall be issued. [Recommended Practice]
d) lists of:
— design documents; — electrical loads in normal, essential, and emergency categories; — cables and/or circuits; — conduits and/or cable trays; — interconnection of terminals and circuits; — tagged electrical equipment; — materials; — input/output points for electrical digital automation systems; — process data for area classification studies; — configuration parameters for digital electrical equipment, such as: digital protection
relays, IEDs, according to the requirements of series IEC 61850 (all parts), frequency converters, RTU, PLC, UPS, optical switches, GPS, communication protocol converters. These configuration data shall be presented according to the format and coding of the various manufacturers indicated in the respective manuals;
e) descriptive memoranda and/or calculation sheets for: — sizing of equipment, such as transformers, panels, frequency converters, and motors; — sizing of uninterrupted power supply systems, including direct current systems,
composed of battery chargers, rectifiers, including voltage levels 24 Vdc and 125 Vdc and alternating current systems (based on UPSs) and respective storage batteries;
— normal, essential, and emergency power circuit distribution system; — pulling of power, control, automation, and lighting distribution circuit cables; — grounding system; — LPS; — lighting system; — automation; — electrical protection and selectivity coordination system; — electrical and process safety interlock systems; — signaling and alarm system; — short-circuit study; — load flow study; — study on voltage drops during startup of large machines and electric motors; — smoke or gas alarm and detection system in panel room, cable room, battery room,
transformer room and control rooms; — types of protection of equipment for installation in hazardous areas;
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— stability studies; — electrical panel arc flash studies; — industrial electrical heat tracing; — electromagnetic transient studies; — descriptive memorandum of construction, assembly, commissioning, and field testing
services; f) presentation of plan and sectional drawings and diagrams:
— one-line diagrams; — multi-wire diagrams; — typical functional diagrams of detailed design, incorporating the protection, interlock,
automation, signaling, and alarm philosophies for electrical panel manufacturing purposes;
— logic or digital equipment programming diagrams; — electrical equipment interconnection diagrams; — interconnection wiring of electrical panel devices; — interconnection blocks of main equipment and of the electrical system; — equipment layouts - plans; — equipment layouts - sections and details; — exposed structures of equipment in outdoor substations - plans, sections, and details; — bases of electrical equipment - locations and dimensions; — hazardous areas - plans; — hazardous areas - sections and details; — diagram of loads and weights on structures; — main electrical network - general plan; — underground electrical network - plans; — underground electrical network - sections and details; — electrical network in cable ladders - plans; — electrical network in cable ladders - sections and details; — electrical network in cable ladders - identification and positioning of cables; — underground manholes - constructive characteristics; — underground manholes - cable arrangement; — exposed pull-points for underground electrical network - plans; — exposed pull-points for underground electrical network - sections and details; — isolated or semi-isolated overhead electrical network (spacer cable) - plans; — isolated or semi-isolated overhead electrical network (spacer cable) - sections and
details; — exposed installations - plans; — exposed installations - sections and details; — electrical building installations - plans; — electrical building installations - sections and details; — distribution of lighting circuit loads; — distribution of normal, essential, and emergency lighting circuits - plans; — distribution of normal, essential, and emergency lighting circuits - sections and details; — distribution of industrial electrical heat tracing circuits - plans; — distribution of industrial electrical heat tracing circuits - sections and details; — lightning protection system (LPS); — exposed grounding system (cable trays, motors, receptacles, panels) - plans; — underground grounding system - plans; — assembly of equipment with TAG number - specific details; — detailed electrical design Data Books; — typical electrical assembly details, including power, control, lighting, grounding, LPS,
and supports; NOTE It is recommended that typical details of electrical installations be preferably prepared by the
user of the design, so as to consolidate its existing sound practices or standards of its installations. In case typical detail drawings are not available to the user of the design, they shall be prepared by the designer. Among the sets of drawings showing typical details to be used or prepared, the following ones are included: typical details of lighting systems, typical details of grounding systems, typical details of lightning protection systems, typical details of power and control distribution, typical details of supports and attachments, typical functional diagrams for cubicles and draw-out units of low-, medium-, and high-voltage switchgear. [Recommended Practice]
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g) documents for the purchase of equipment and materials: — list of tagged equipment; — lists of materials; — technical specifications; — Data Sheet; — material requisitions; — technical reports.
NOTE The lists of tagged equipment, such as: transformers, panels, and motors, shall include, at
least, the following information: equipment TAG number and function. 5.5.4 Documentation Prepared and Issued by Manufacturers in Detailed Electrical Design The documentation prepared and issued by the manufacturers in the detailed electrical design shall include all documents requested in the respective technical specification standards of the various electrical equipment, such as: panels, motors, transformers, frequency converters, battery chargers, UPS, and cables, as well as in the RM of the respective electrical equipment and materials. The manufacturers’ documentation is related to the following supply phases:
a) documentation upon submission of bids; b) documentation for approval; c) as-purchased or as-supplied documentation (certified documentation).
Manufacturers shall present in each supply phase, at least, the documents listed below, unless the equipment, material or supply phase does not require all these documents, which shall be subjected to approval by PETROBRAS.
a) manufacturing schedules; b) lists of equipment documents; c) dimensional drawings of equipment, including mass and approximate center of gravity of
the equipment; d) Data Sheets; e) lists of materials and components; f) reports on routine, type, and special tests; g) conformity certificates; h) list of spare parts; i) inspection and test plan; j) factory acceptance test reports; k) field acceptance test reports; l) equipment assembly manuals; m) equipment commissioning manuals; n) equipment operation manuals; o) equipment maintenance manuals; p) installation, assembly, operation, and maintenance training schedule.
5.5.5 Delivery of Design Modeled in 2D CAD, 3D CAD or CAE Applications in the As-Built
Condition 5.5.5.1 The designer shall periodically prepare and supply, during the detailed design execution phase, complete copies of the electronic models prepared in 2D CAD, 3D CAD or CAE applications, including their respective databases, so as to allow supervision and follow-up of the progress of the design.
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5.5.5.2 It will be necessary to supply, together with the files comprising the modeling in 2D CAD, 3D CAD or CAE applications, all specifications, manuals, catalogs, and conformity certificates used or required in defining all electrical equipment and components (including panels, generators, motors, transformers, frequency converters, UPS, battery chargers, and storage batteries), cables, conduits, cable trays, pull boxes, supports, and electric pipe heat tracing systems. 5.5.5.3 In all cases in which field modifications are necessary, the design prepared in 2D CAD, 3D CAD or CAE shall be updated before these field modifications are implemented. Field modifications shall only be made after approval of the revision of these designs in the respective applications and databases. 5.5.5.4 The design modeled in 2D CAD, 3D CAD or CAE applications shall be delivered in its final As-Built condition only after completion of assembly services, field tests and acceptance of the respective reports. 5.5.5.5 The final delivery of the entire detailed design modeled in 2D CAD, 3D CAD, and CAE applications in the As-Built condition shall include:
a) the entire model prepared, including all the respective object-oriented databases; b) complete documents complying with the design presentation requirements for all
disciplines involved, including electricity; c) all documents and drawings generated in the equipment design and manufacturing
stages; d) all animation files prepared in the detailed design phase, including Walkthrough or Virtual
Reality animations. 5.5.6 Delivery of Computer Files of Specific Applications for Electrical Design Studies The designer shall provide all computer files generated by specific applications and software for the development of electrical studies applicable to the design, including:
a) short-circuit studies; b) coordination and selectivity studies; c) configuration and parameterization of IEDs (IED manufacturer software); d) configuration of data communication networks for electrical protection and automation
systems (IED manufacturer software); e) configuration of IED maintenance and engineering networks (IED manufacturer software); f) load flow studies; g) electromagnetic transient studies; h) electromechanical transient studies (stability); i) harmonic distortion studies; j) grounding system studies; k) arc flash studies; l) studies on voltage drop during start-up of large motors; m) configuration and parameterization of various digital electrical equipment, including
frequency converters, soft starters, UPS, GPS, optical switches, protocol converters, RTU, PLC, gateways, data concentrators, temperature monitors and energy meters (equipment manufacturer software).
These files shall be supplied in the most updated versions, considering the supplier documentation in the “certified” condition.
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6 Automation, Management, Modeling, Simulation, and Presentation of Electrical
Design Drawings and Documents in 2D CAD, 3D CAD or CAE 6.1 General 6.1.1 Plans, sections, details and other drawings indicated in this Standard shall be prepared in 2D CAD, 3D CAD or CAE applications. 6.1.2 It is recommended that modeling of the electrical systems involved in the design be performed in the CAE application based on databases. This CAE application shall generate electrical design documents, such as one-line diagrams, functional diagrams, interconnection diagrams, loop diagrams, Data Sheets of electrical equipment, lists of components, materials, and equipment, lists of electrical loads and list of cables. [Recommended Practice] 6.1.3 It is recommended that modeling and presentation of drawings and documents of physical installations of the electrical systems and equipment involved be performed in 3D CAD or CAE applications based on object-oriented databases. [Recommended Practice] 6.1.4 All documents providing input to the databases of the models in 2D CAD, 3D CAD or CAE should adopt a procedure standardizing the automatic revision control system so as to ensure that the databases are always integrated and updated. [Recommended Practice] 6.1.5 All certified documents and drawings received from manufacturers and suppliers shall be analyzed and controlled so as to check the consistency and update possible data modifications in characteristics and specifications of items already introduced and modeled in the databases of 2D CAD, 3D CAD or CAE applications, when the detailed electrical design is prepared. 6.1.6 The configuration of the information modeled in the integrated databases of 3D CAD should allow data to be exported for purchasing through importation by CAE application in electrical designs and vice-versa. [Recommended Practice] 6.1.7 All physical facilities comprising the electrical system, including equipment, buildings and materials, such as those indicated below, should be represented and modeled in 3D CAD application, whenever applicable: [Recommended Practice]
a) substation buildings; b) LCR buildings; c) ICR buildings; d) cable room or basement; e) storage battery rooms; f) VAC system rooms; g) electrical panels installed inside substations, including voltage levels 13,8 kV, 4,16 kV,
2,4 kV, 0,48 kV, 0,22 kV, 0,127 kV, 125 Vdc, 24 Vdc; h) battery chargers, UPS, RTU, TBB, and storage batteries; i) frequency converters for controlling the rotation of electric motors; j) cabinets with optical shelves, optical switch racks, and electrical automation and
protection system; k) electric generators; l) power, auxiliary, and lighting transformers; m) 13,2 kV, 4,0 kV, 2,3 kV, 0,44 kV, and 0,22 kV electric motors;
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n) field panels for distribution of power circuits, with type of protection for installation in explosive atmospheres (power, lighting, industrial electrical heat tracing system, and receptacles);
o) field panels for distribution of control circuits, with type of protection for installation in explosive atmospheres;
p) power and control panels for general field installation; q) local control push-button stations for motors in the field; r) normal and emergency lighting system and fixtures; s) welding and service receptacles; t) equipment and components for power supply and monitoring the temperature of
resistance electric trace heating systems, according to the requirements of PETROBRAS N-1857 and N-2641. For offshore production facilities the requirements of IEC 61892-5 shall be followed;
u) equipment and components of smoke monitoring systems in cable rooms, battery rooms, and electrical panel rooms in substations and control rooms;
v) LPS; w) overhead cable tray systems, including indication of sections with fire proofing; x) exposed conduit systems, including indication of sections with fire proofing; y) underground grounding systems, including ground rods, ground grids, and handholes; z) underground conduit envelopes; aa) underground manholes; ab) exposed pull points.
6.1.8 It is recommended that the following documents be generated in 2D CAD format, from the export of data from the modeling prepared in 3D CAD, for printing as well as filing in the technical document management system. [Recommended Practice]
a) electrical equipment location plans; b) layout plans of exposed and underground conduit systems; c) layout plans of the cable tray and conduit systems for distribution of electric power,
command, control, automation, protection, interlock, lighting circuits and data communication networks;
d) plans showing the location of lighting systems, including lighting fixtures, transformers, and lighting and receptacle distribution panels;
e) power circuit distribution plans at the various voltage levels applicable to the design, including 230 kV, 138 kV, 69 kV, 13,8 kV, 4,16 kV, 2,4 kV, 0,48 kV, 0,22 kV, 0,127 kV, 125 Vdc, and 24 Vdc;
f) distribution plans for command, control, interlock, protection, electrical automation, lighting circuits and data communication networks both inside the electrical substations, local control rooms, and within the process and utility units and areas;
g) underground grounding and LPS plans; h) hazardous area plans; i) section drawings of hazardous areas; j) plans showing distribution of circuits for feeding and monitoring the temperature of
resistance electric heaters for heating process piping and equipment (industrial electrical trace heating);
k) lists of tagged equipment, including cable lists (power, control, command, protection, interlock, automation of lighting and data communication networks) and electrical materials in general (lighting fixtures, conduits, cable trays, receptacles, assembly accessories, supports etc.).
6.1.9 It is recommended that the documents and drawings generated from 3D CAD or CAE application also be exported and generated electronically in 2D format, in order to be registered in the technical document management system and to facilitate printing and consultation in paper form. These documents shall contain on the margin below the legend one of the following applicable warning notes: [Recommended Practice]
a) legend for 2D files generated from 3D CAD applications:
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— “ATTENTION: Document originally generated in 3D CAD application . Revise this document only using the electronic model in 3D CAD. DO NOT REVISE this document from the 2D CAD format”;
b) legend for 2D files generated from CAE applications: — “ATTENTION: Document originally generated in CAE application. Revise this
document only from the CAE electronic model. DO NOT REVISE this document from the CAD 2D format.
6.1.10 All equipment involved in the electrical system modeled in 3D CAD application shall contain, whenever applicable, at least, the following information:
a) identification of equipment (in cases of tagged equipment); b) operating voltage, current, and rated power; c) model and manufacturer; d) marking of type of protection for installation in hazardous areas containing an explosive
atmosphere (Zone, Group, Temperature Class, types of protection and EPL for explosive atmospheres).
6.2 Automatic Revision Indication and Control Systems It is recommended that the CAE and CAD applications used for the preparation of the electrical design, in its various stages, be provided with features and systems for automatic indication and control of revisions implemented in the databases and respective documents, including diagrams, lists, and plans, as indicated below: [Recommended Practice]
a) these features shall allow the revisions made to a particular part of the documentation or database to be automatically disseminated to all the other applicable documents, such as: one-line diagrams, functional diagrams, multi-wire diagrams, wiring diagrams, list of loads, list of cables, Data Sheets, interconnection diagrams, logic diagrams, and block diagrams;
b) these automatic revision control features shall indicate the implementation of each revision through the following information: revision description and date, identification of those responsible for preparation, verification and approval of the revision;
c) these automatic revision control features shall indicate in the respective documents the modified parts by placing elements such as ameba-shaped revision marks, shading or other similar suitable methods for properly identifying the parts of the documents that have been revised or modified.
6.3 Electrical Design Documentation Management System In the electrical designs an electronic technical document management system should be set up based on EDMS concepts, with possibility of sending documents and drawings for approval and sending automatic information and messages via the Internet or Intranet, as indicated below: [Recommended Practice]
a) this system shall allow, among other features, registration of the various projects, necessary workflows, and all design documents;
b) this system shall allow follow-up of the progress and workflow of each document, from its preparation to its approval, including the phases for incorporating comments and revisions;
c) this system shall allow registration of the individuals responsible for the document workflow stages, such as those responsible for comments, consolidators, coordinators, and managers, with their respective user ID and password;
d) this system shall allow the generation of messages of documentation made available for comments and issuance of management reports. An example of this technical documentation management system is SIGEM.
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6.4 Real-Time Digital Modeling and Simulation of Transient and Steady States of Electrical Power and Protection Systems
6.4.1 If specified in the scope of the design, the designer shall model and simulate in a real-time digital system the electric power and protection systems involved in the design. 6.4.2 This real-time digital simulation system shall digitally simulate the electromagnetic transients of the power system, and shall be used for performing closed-loop tests of physical devices, such as protection devices (digital relays and IEDs) and control devices (disconnecting switches, circuit breakers, AVRs, and SCR trigger pulses) including IEC 61850 protocol devices. These real-time digital simulation systems shall allow studies of analytical systems representing real electric power systems to be set up. 6.4.3 It will be necessary to model in such real-time digital simulation systems the industrial electrical systems involved in designs in petroleum refineries, terminals, pipelines, petroleum platforms, petrochemical plants and electrical systems of electric power cogeneration plants fueled by gas, diesel or alcohol or a combination of these or other fuels. 6.4.4 The real-time digital simulation system shall operate in a continuous and supported way in real time, solving the equations of the electrical power system modeled quickly enough to continuously produce the output conditions representing in a realistic manner the actual conditions of the electrical system. Based on these real-time output signals, the digital simulation system shall be directly connected to protection and control components (IEDs) in such a manner as to simulate the actual operation of the electrical system to be set up. 6.4.5 These real-time digital simulation systems shall allow the investigation of effects of disturbances on the electrical power system so as to avoid interruptions or partial or complete failures of this system. Examples of these situations include transient or steady states, nominal operation, overloads, harmonic contents, switching, maneuvers for changes in the topology of the power supply and interconnection systems, start-up of motors and the occurrence of short circuits. 6.4.6 The electrical power system shall be modeled based on typical components found in a library of real-time simulation system software or on specific components to be customized. The parameters to be used in these typical or customized components shall be those indicated in the electrical design. The diagrams and the graphical interface of the system shall be prepared to allow the implementation of all steps and stages allowing the execution and simulations needed, as well as analysis of the respective results. 6.4.7 This real-time digital simulation shall include the requirements indicated below:
a) digital simulation of industrial electrical systems and their respective components shall include modeling of the generation sources and of the electrical systems of power utility companies, electrical turbogenerators driven by steam and gas turbines, static excitation systems, AVR systems, power transformers, OLTCs, high-, medium-, and low-voltage PT and CT, busbars, medium- and low-voltage CDC type switchgear, medium-and low-voltage MCC type panels, high, medium, and low energy circuit cables, short-circuit current limiting reactors, capacitor batteries, frequency converters for controlling the rotation of electric motors, induction and synchronous motors, UPS, capacitor batteries, electronic power equipment of resistance or inductive electrical systems for heating process piping and/or equipment and other electrical static loads listed in the detailed design, usually found in electrical power systems of platforms, petroleum refineries, terminals, cogeneration power stations, and petrochemical plants;
b) real-time modeling of industrial electrical systems using digital simulators shall be simulated with analyses for checking responses and the behavior of those systems in cases of transient disturbances, including current and voltage unbalance, short circuits, influence of harmonic distortions and CT saturation effects;
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c) among the simulations to be made, responses in steady and transient state may be verified and analyzed during the occurrence of disturbances originating from switching of loads, switching of normal, essential, and emergency power generation sources, switching of circuit breakers and switches for reconfiguration of the operation of electrical systems, startups of large machines and analyses of transient events resulting from voltage sags, switching and short-circuits;
d) real-time tests shall include short-circuit fault analysis of the phase-ground, phase-phase, phase-phase-ground and three-phase types. Each of these types of short circuits shall be analyzed, including for different pre-fault current angles at the time of occurrence of the short-circuit, such as, for example, 0º, 45º, 60º, and 90º;
e) real-time simulations shall involve the analysis of the behavior of the protection functions of interconnections between the electrical generation system of petroleum refineries and petrochemical plants to the electrical system of the utility companies;
f) the performance referring to the stability of the generation system, including modeling and simulation of static excitation systems and AVRs of turbo-generators driven by turbines fueled by steam, gas, diesel, or alcohol or a combination of these or other fuels shall be analyzed and simulated;
g) real-time modeling and analysis of the power system shall consider the performance characteristics and configurations of the respective digital protection and automation systems specified in the design. Examples of such digital electrical protection and automation systems include those based on IEDs and on Ethernet networks with communication protocol according to the standards specified in the IEC 61850 series of standards;
h) real-time tests and simulations involving digital protection systems shall take into consideration the effects resulting from possible saturations of protection CT which may occur in low- and medium-voltage switchgear. Such tests shall allow evaluation of the real-time operating performance of adaptive instantaneous overcurrent protection functions, including evaluation of settings and of the operating times of these protection functions in conjunction with logic selectivity settings specified in coordination and selectivity studies prepared in the electrical design;
i) tests in real-time digital systems shall check compliance with the performance requirements relating to the protection functions specified in the coordination and selectivity studies. Such simulations shall include the verification of the minimum periods of logic selectivity, in which it is necessary to consider, in applicable cases, adaptive overcurrent protection functions and traffic of GOOSE type priority messages in Ethernet networks with IEC 61850 protocol;
j) the responses of real-time simulations of the stability of electrical generation systems, of the content of existing harmonics and of occasional deficiencies in the grounding systems shall be checked, evaluated and, if necessary, mitigated.
6.4.8 Platform tests involving the use of digital protection relays, IEDs, optical switches, and contactors simulating the protection devices and major components of the electrical power systems involved in real-time simulation shall be performed. In these tests, the analog voltage and current output signals generated by the real-time digital simulation system at the current and voltage inputs of the respective digital protection relays or IEDs shall be applied. 6.4.9 The circuits relating to discrete digital input signals for monitoring the operating status (open/closed) from components simulating disconnecting switches and circuit breakers of the power system and of output contacts for trip or alarm of IEDs shall be interconnected to the real-time digital simulation system. Such circuits shall allow measurement and analysis of the activation times of the protection functions of each IED, resulting from the various transient states to be simulated. 6.4.10 The output current and voltage signals of the real-time digital simulation system shall be applied to the digital protection relays or IEDs through operational amplifiers, in values compatible with the requirements of the current and voltage input values of the IEDs.
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6.4.11 Real-time simulation responses shall be analyzed with a view to anticipating and solving occasional problems relating to the settings of the respective protection functions. The responses of adjustments of the settings of time-delay overcurrent functions shall be evaluated (for cases involving phase-ground, phase-phase-ground, and three-phase short circuits), under and overvoltage, directional overcurrent, load flow, reverse power and under frequency. 6.4.12 In those cases in which such real-time simulations present results considered inadequate, the designer shall implement the respective mitigating actions or solutions to solve occasional problems observed in the simulation. Such actions may include the revision of technical specifications of the equipment and components of the electrical systems involved in the design, the introduction of new components to the electrical power system, the modification of parameters for setting protection functions or other mitigating measures to be proposed by the designer. 6.4.13 The designer shall present, after completion of the real-time design simulation tests, the respective reports, containing the entire description of the modeled and tested systems, with results obtained duly detailed. These reports shall contain, at least, the requirements indicated below:
a) description of the electrical power and protection/automation systems considered in the real-time simulation tests;
b) data and parameters used for modeling each equipment or component considered in the modeling and simulation, including power supplies, transformers, generators, motors, capacitors, cables, panel busbars, CT, PT, IEDs, switches, circuit breakers, and frequency converters;
c) detailing of criteria and premises considered in the real-time modeling and tests, including transient cases considered and the set points parameterized in the IEDs;
d) detailing, analysis, and considerations on the results obtained in the real-time simulation tests;
e) detailing of mitigating actions and measures implemented by the designer, in possible cases in which it is necessary to change the parameters and characteristics of the equipment and components of the electrical power system or configuration and settings of the IEDs to be considered in the design of the electrical system;
f) detailing, analysis, and considerations on the results obtained after the implementation of the mitigating measures considered, including repetition of real-time simulation tests in an iterative manner, until the electrical design meets the reliability, stability, coordination, selectivity, protection, efficiency and safety requirements specified;
g) it will be necessary to supply, together with the real-time test reports, the respective electronic spreadsheets and files in COMTRADE format (according to the requirements indicated in ANSI IEEE Std C37.111), containing the main data obtained in the tests. Among such data the operating times of the protection functions, the GOOSE message receiving times, the time periods for receipt of block messages by logic selectivity (from the downstream IED), current and voltage values obtained in all transient cases that were simulated may be indicated.
7 Specific Requirements for Preparation and Presentation of Electrical Design
Documents The preparation and presentation of the documentation contained in all electrical design phases (conceptual, basic, front-end engineering, detailed design and As-Built updating), listed in Annex C of this Standard, with respect to the applicable documents to be prepared by the designer, in each specific design, shall include, at least, the specific information indicated in this Section.
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7.1 Conceptual, Basic, and Front-End Engineering Design 7.1.1 Lists of Electrical Loads 7.1.1.1 Standardized sheets according to the requirements indicated in PETROBRAS N-2062, issued by panel, process or substation, based on the basic process design. 7.1.1.2 Besides the loads of the normal power supply system, the loads to be fed by the essential and emergency power supply systems shall be described, in case those systems are necessary. Examples of these essential and emergency power supply systems include: lighting systems, substation pressurization systems, control rooms and other rooms, storage battery chargers, UPS, industrial electric heat tracing systems for equipment and piping, supervisory control stations, telecommunication systems, data processing systems. 7.1.1.3 The lists of electrical loads shall be revised by the detailed designer as its work is carried out, in accordance with PETROBRAS N-2064. According to the size of the detailed design, it may be necessary to prepare and revise these load lists more than once. 7.1.1.4 The lists of electrical loads shall include the loads indicated by the various disciplines, including process, automation, instrumentation, telecommunications, data processing and industrial safety. 7.1.1.5 The heading and footnote of the list of electric load, Annex D, shall be completed in accordance with PETROBRAS N-381. 7.1.1.6 The list of electric loads, Annex D, shall be used as prescribed in this Standard. 7.1.1.7 The designer shall revise this list of electric loads, Annex D, whenever new date come up or old date are modified. 7.1.1.8 Canceled electric loads shall be kept in the list of electric loads, Annex D, hatched, indicating in REMARKS column, the following text: “CANCELED IN REVISION XX”. 7.1.2 Technical and Economic Feasibility Studies of the Electrical System These studies shall include the monetary indexes or parameters and return rates justifying the selection of the philosophies adopted for the various electrical equipment and systems. Examples of these technical and economic feasibility studies are shown below:
a) configuration of electrical system; b) redundancies; c) driving loads with frequency converters; d) driving loads with soft starters; e) induction and synchronous motors; f) digital protection and automation systems of the electrical system; g) architectures and redundancies of deterministic data communication networks and
Ethernet; h) systems for heating equipment and pipe by means of resistance or inductive or steam
tracing.
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These studies shall be presented whenever necessary and, in the case of a design with a new philosophy, they shall be applied both in new facilities and in refurbishment or expansion designs of existing facilities. 7.1.3 Short-Circuit Calculation Sheets These sheets shall present the parameters needed for calculations, the impedance diagram for each operating situation of the system leading to maximum and minimum short-circuit conditions at the points to be considered, the development of the calculations per se and the summary of results.
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These studies shall be prepared in a specific application for this purpose and be compatible with the database integrated with the lists of electrical loads. The computer files generated by the respective applications and software for developing these studies shall be provided in electronic form, so as to allow to the user of the design the necessary subsequent revisions, in cases of modifications or expansions of the electrical systems involved. For short-circuit current calculations, the applicable requirements indicated in IEC 60909-0 shall be taken into account. If the user of the design has defined the use of the ANSI/IEEE methodology for short-circuit current calculations, the applicable requirements indicated in ANSI/IEEE Std 141 shall be taken into account. In addition, for fixed and mobile offshore units the applicable requirements indicated in IEC 61363 shall be taken into account. For calculating the energy levels released by the occurrence of short circuit with arcing, the requirements indicated in PETROBRAS N-2830 shall be met. 7.1.4 Load Flow Studies These studies shall present the direction of active and reactive load flows, as well as the voltage levels in all busbars for the various configurations that the electrical system may present. The load flow studies shall consider the results obtained in the other studies, such as: short-circuit and startup and reacceleration of large motors. These studies shall be prepared in a specific application for this purpose and compatible with the database integrated with the lists of electrical loads. These studies shall take into consideration the possible configurations of the electric power system and shall include all controls and settings, such as indication of power transformer tap adjustment and indication of voltage adjustments of the AVRs of the electric generators. These studies shall take into account the possible configurations of the electrical power system and shall include all controls and adjustments needed for full compliance with the operating requirements both under normal conditions and in contingency situations. Among such controls and adjustments the following may be mentioned: automatic adjustments of power transformer taps, voltage control in local and/or remote bars, power exchange control. Computer files generated by the respective applications and software for preparation of these studies shall be provided in electronic form so as to allow subsequent revisions in cases of modifications or expansions of the electrical systems involved. 7.1.5 Descriptive Memoranda of Electrical System Philosophies Description containing the philosophies adopted for the power distribution systems, normal, essential, and emergency power supply systems, grounding, types of protection of equipment for installation in hazardous regions, lighting, signaling and alarm, protection, automation, metering, interlocking, industrial electric heat tracing and lightning protection.
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For the philosophies of the protection, interlock, signaling, and alarm systems, the descriptive memoranda shall be accompanied by the respective logic diagrams. The basic electrical information contained in the IBE and the technical specifications, if presented by the user of the design, shall be considered in the preparation of these descriptive memoranda. 7.1.6 Descriptive Memorandum with the Basic Characteristics of the Electrical Installations Complete description of the installations, considering for each area, building or part of the building the premises specified by PETROBRAS N-1996, N-1997, N-1998, N-2006, and N-2039. The basic electrical information contained in the IBE or descriptive memorandum of the design, if presented by the user of the design, shall be considered in the preparation of those descriptive memoranda. In offshore production units, the descriptive memorandum of the electrical design shall consider the applicable requirements indicated in ABNT NBR IEC 61892-1 and IEC 61892-2. 7.1.7 Area Classification Studies 7.1.7.1 Area classification studies, including the preparation of the documentation required for preparation of the lists of process data for classification of areas, the documentation about the extents of hazardous regions, the selection and specification of equipment and buildings to be installed in hazardous areas, shall be performed according to the requirements set forth in the applicable parts of the following standards: regulatory standards No. 10 (NR-10), No. 20 (NR-20), PETROBRAS N-1674, PETROBRAS N-2154, PETROBRAS N-2155, PETROBRAS N-2166, PETROBRAS N-2167, PETROBRAS N-2706, ABNT NBR 17505-1, ABNT NBR IEC 60079-0, ABNT NBR IEC 60079-10, ABNT NBR IEC 60079-13, ABNT NBR IEC 60079-14, ABNT NBR IEC 60079-16, ABNT NBR IEC 60079-17, ABNT NBR IEC 60079-20, ABNT NBR IEC 61241-10, ABNT NBR 15615, IEC 61892-7, API RP 505, NFPA 30, NFPA 497, and API RP 14 FZ. 7.1.7.2 For particular design cases, area classification studies may require the application and compliance with the requirements set forth in other specific standards to be indicated by the user of the design. 7.1.7.3 Hazardous area studies shall include the preparation of process data lists, the definition of the extents of hazardous regions, groups of flammable gases or combustible dusts and temperature classes. These studies shall contain the descriptive memorandum of the risk evaluations, the criteria used for selecting the types of protection of equipment and the EPLs required for electrical and electronic equipment for installation in explosive atmospheres. 7.1.7.4 The compilation of data needed for the development of the design of hazardous areas, including the filling out of process data lists, the identification of flammable substances, the identification of risk sources and the determination of the extents of hazardous regions shall involve coordinated efforts of a multidisciplinary team of professionals. This team shall count on the participation of professionals from various disciplines, such as: process, operation, industrial safety, piping, maintenance, instrumentation, and electricity.
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7.1.7.5 Area classification studies shall be performed and conducted under the coordination of professionals of the industrial process and/or safety discipline, so as to comply with the area classification procedure requirements indicated in ABNT NBR IEC 60079-10, which mentions that the area classification shall be prepared by those who are familiar with the properties of flammable materials, the process and the equipment, with the participation, where appropriate, of professionals from the safety, electrical, mechanical, maintenance and other engineering areas. 7.1.7.6 The electrical designs shall consider the requirements indicated in PETROBRAS N-1674, in the case of layout designs of industrial onshore crude, petroleum product, natural gas and alcohol facilities.
a) it will be necessary to check, whenever applicable or technically possible, the requirement for location of buildings of substations and control rooms outside the extents of the hazardous areas. In case these buildings need to be located in hazardous areas, they shall be protected by artificial pressurization, in accordance with the requirements set forth in ABNT NBR 60079-13;
b) it will be necessary to check, whenever applicable or technically possible, the requirement stipulating that process equipment containing sources of ignition or flame of non-electrical origin, such as furnaces, boilers, and incinerators, shall be located outside hazardous areas.
7.1.8 One-Line Diagrams One-line diagrams shall be prepared based on the databases of the lists of electrical loads. They shall include the requirements indicated in the descriptive memoranda containing the philosophies adopted for the electrical design and in the descriptive memorandum of the basic characteristics of the electrical installations. One-line diagrams shall contain, at least, the following information:
a) representation of power supplies, including voltage, frequency, and number of phases; b) indication of short-circuit level at the input of the system and on all busbars at the
different voltage levels; c) indication of busbar capacity at continuous rating; d) indication of the positions of circuit breakers and disconnecting switches and ground
switches under normal operating conditions of the electrical system; e) representation and identification of input, interconnection, and output circuits; f) representation of all electrical equipment and components of the system; g) indication of the nominal cross-sectional area and formation of cables of power
distribution circuits; h) representation of CT and PT for feeding measuring instruments and protection relays; i) representation of the numbering of the functions of the devices used for protection,
interlock, control, signaling, and alarm, according to the requirements set forth in ANSI IEEE Std C37.2;
j) representation of protection relays and IEDs, with their respective pick-up circuits and interfaces with the digital protection and automation systems;
k) representation of electrical and electromechanical interlocking circuits between equipment;
l) representation of measuring instruments, in case these measurements need to be presented outside the displays of digital protection relays or IEDs;
m) indication of signals intended for digital monitoring, automation, protection, and control systems;
n) representation of soft starters and frequency converters for process control.
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7.1.8.1 Each electrical panel should have its own one-line diagram, which shall represent power, control, and protection circuits and interlocks with other electrical power panels, transformers, and digital protection and automation systems. [Recommended Practice] 7.1.8.2 It is recommended that electrical panel manufacturers use the one-line diagrams prepared by the designer in the detailed design stage to include new information and data of technical characteristics of components in the panel manufacturing stage. The panel manufacturer or suppliers should not prepare other one-line diagrams, so as to avoid the duplicity of documents and information. [Recommended Practice] 7.1.9 Typical Functional Diagrams and Logic Diagrams for Programming of Digital Equipment Functional diagrams shall incorporate the protection, interlock, signaling, alarm and automation philosophies indicated in the descriptive memoranda of the electrical system philosophies. These functional diagrams shall indicate the number of digital and analog input and output points required by IEDs, meters, protection relays, required to implement the functions required. Logic diagrams shall incorporate the protection, interlock, signaling, alarm, and automation philosophies indicated in the descriptive memoranda of the electrical system philosophies. The symbology to be used in the preparation of functional and logic diagrams shall be in accordance with the requirements set forth in PETROBRAS N-898 and in IEC 60617. Logic block diagrams for parameterization and configuration shall be prepared for digital equipment, such as digital protection relays, IEDs, GPS, PLC, RTU, frequency converters, soft starters, optical switches etc. These logic block diagrams shall indicate the signaling, alarms and local control push-buttons of protection relays through their man-machine interfaces (MMIs) and displays. The functional diagrams to be prepared by the panel manufacturers shall contain the logic protection, interlock, automation, control, signaling and alarm diagrams to be implemented through software for configuration and parameterization of digital protection relays, IEDs, and other configurable digital equipment, such as RTU, PLC, GPS, frequency converters, and soft starters. 7.1.10 Basic Electrical Design Data Books The designer shall prepare the data books, in this basic design phase, containing all documents generated in this electrical design stage. These data books shall contain the necessary documentation, considering the applicable documents prepared by the designer, listed in Annex C of this Standard, in each specific design, in accordance with the specific requirements indicated in 7.1. Copies of these data books shall be provided, in the necessary amount, for distribution to the interested departments and participants of the project.
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7.2 Detailed Electrical Design In this detailed electrical design stage all documents generated in the basic design stage shall be detailed. 7.2.1 Design Schedules The design schedule shall contain the following information:
a) listing of design documents to be issued by the designer according to the chronological order of design progress;
b) bar charts identifying the start dates of the work for preparing such documents and the “end” dates of the respective work at the time of approval or release thereof;
c) PERT/CPM schedule, clearly identifying all design events with their “start”, “end”, “early start”, and “late finish” dates, the interdependence between documents etc., and the critical paths detected.
This design schedule shall be prepared in a suitable application for this purpose allowing the implementation of resources and functionalities required for follow-up of the physical and financial progress of the design (e.g.: “S” Curve), as well as management of delays, resource leveling, and pending items, if any. 7.2.2 Lists of Design Documents Lists of design documents shall be prepared fully describing the types of documents to be issued for the design containing, at least, the following fields:
a) document numbering; b) document title; c) size; d) scales; e) revision with the respective issue date; f) presentation phase of basic electrical design, according to 5.3.1.
The designer should have an electronic technical document control and management system allowing identification and traceability of the progress stage of each of the existing design documents, including the following resources and information: [Recommended Practice]
a) document workflow; b) list of individuals responsible for making comments; c) lists of individuals consolidating comments; d) revision control; e) control of pending items; f) time periods for revisions; g) control of deadlines of late documents; h) sending of electronic messages to individuals responsible for comments, consolidators
administrators, and managers of the technical documentation system. 7.2.3 Lists of Electrical Loads 7.2.3.1 Sheets standardized according to the requirements set forth in PETROBRAS N-2062, issued by panel, process or substation, based on the basic process design.
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7.2.3.2 Besides the loads of the normal power supply system, the loads to be fed by the essential and emergency power supply systems shall also be described in case such systems are necessary. Examples of these essential and emergency power supply systems include lighting systems, substation pressurization systems, control rooms, and other rooms, storage battery chargers, UPS, industrial electric heat tracing systems for equipment and piping, monitoring and control stations, telecommunications systems, data processing systems. 7.2.3.3 The lists of electrical loads shall be revised by the detailed designer as the latter carries out its work, following PETROBRAS N-2064. According to the size of the detailed design, it may be necessary for the designer to prepare and revise those loads lists and other affected documents, drawings and diagrams more than once. 7.2.3.4 The lists of electrical loads shall be complemented so as to update the data relating to the loads listed in the basic design by the various disciplines, including process, automation, instrumentation, telecommunications, data processing, and industrial safety. 7.2.3.5 The heading and footnote of the list of electric load, Annex D, shall be completed in accordance with PETROBRAS N-381. 7.2.3.6 The list of electric loads, Annex D, shall be used as prescribed in this Standard. 7.2.3.7 The designer shall revise this list of electric loads, Annex D, whenever new date come up or old date are modified. 7.2.3.8 Canceled electric loads shall be kept in the list of electric loads, Annex D, hatched, indicating in REMARKS column, the following text: “CANCELED IN REVISION XX”. 7.2.4 Lists of Cables and/or Circuits 7.2.4.1 The lists of cables and/or circuits shall contain, at least, the following information:
a) identification (TAG number) of cables, conduits and/or circuits; b) type of cable; c) length of runs and total length of circuit; d) quantity, formation, nominal cross-sectional area and length of cables per circuit; e) description of origin and destination of each run; f) indication of route of each run; g) identification of coil or code of material to be used; h) identification and description of the service or function of the circuit (such as main power
supply, auxiliary power supply, direct current circuits, control, command, signaling, automation, alarm, heating, winding temperature sensors, housings and bearings, digital circuits, analog signal circuits, data communication networks etc.);
i) rated voltage of circuit; j) revision field of list of cables per circuit; k) “remarks” field for inclusion of general notes about each circuit.
7.2.4.2 The lists of cables and/or circuits shall be issued per process unit fed by substation and lists of cables and circuits within the substation and, when necessary, a list for interconnections between different substations.
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7.2.4.3 The design of electrical circuits on ships, platforms, and other fixed or mobile offshore units shall consider the applicable requirements set forth in IEC 61892-4, IEC 60092-352, IEC 60092-401, and in IMO MODU CODE. 7.2.5 Lists of Conduits and/or Cable Tray Systems 7.2.5.1 The lists of conduits and/or cable tray systems shall contain, at least, the following information:
a) identification (TAG number) of conduits and/or cable tray systems; b) type of conduit or cable tray; c) length of runs and total length of conduit or cable tray systems; d) description of origin and destination of conduit or cable tray systems run; e) indication of route of conduit or cable tray systems run; f) nominal diameter of conduit or dimensions of cable tray, channel-type tray or ladder.
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7.2.5.2 The lists of conduits and/or cable tray systems shall be issued by process unit fed by substation as well as lists of cables and circuits within the substation and, when necessary, a list for interconnections between different substations. 7.2.6 List of Input and Output (I/O) Points of Digital and Automation Equipment 7.2.6.1 The I/O lists to be used by digital protection relays, IEDs, frequency converters, soft starters, PLC, RTU, optical switches, GPS, UPS and other electrical, electronic or digital equipment requiring configuration or parameterization shall be prepared. 7.2.6.2 These I/O lists shall list, at least, the following types of discrete physical signals, which physically size digital equipment:
a) digital inputs; b) digital outputs; c) analog inputs; d) analog outputs.
7.2.6.3 It will be necessary to quantify and describe the digital and analog I/O signals required for compliance with the requirements indicated in the functional diagrams, logic block diagrams, and descriptive memoranda of automation and protection system. 7.2.6.4 A list shall be prepared, by identification of equipment (TAG number), compartment or panel, of the I/O points to be hardwired to the IEDs, RTUs, PLCs, digital protection relays, frequency converters etc. 7.2.6.5 The lists of I/O signals shall indicate the signals to be controlled and monitored via the data communication networks, which do not physically load the I/O cards of the IEDs, RTUs, PLCs, frequency converters etc. These signals also carry the processing of the controllers of the digital electrical protection and automation system. 7.2.7 Lists of Materials 7.2.7.1 These lists shall indicate all materials used, including the description of the material, the amount needed per drawing, the clearances specified and the respective criteria, the amount requested and the number of the respective material requisitions, including the materials to be provided by the project. 7.2.7.2 These lists shall include miscellaneous materials other than equipment (such as: motor, transformer, panel, storage battery), such as: conduits, cables, cable tray system, assembly and support accessories, terminations, splices, push-button stations, lighting fixtures, materials of grounding and LPS, receptacles and plugs and pull boxes. 7.2.8 Descriptive Memoranda and/or Calculation Sheets 7.2.8.1 Sizing of Equipment Calculation sheets shall be prepared for the sizing of the main equipment of electrical power systems (such as transformers, generators, panels, motors, frequency converters, battery chargers, UPS, storage battery), protection and automation systems (IEDs, RTUs, PLCs), and lighting systems, and the provisions in the applicable standards and particular requirements specified in the basic design shall be followed.
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Medium-voltage switchgear assemblies shall be specified based on the requirements indicated in ABNT NBR IEC 62271-200, including the internal arc classification (IAC) requirements. 7.2.8.2 Normal, Essential, and Emergency Power Distribution Systems The cables of the circuits of the power distribution systems shall be sized based on the current-carrying capacity criteria as indicated in IEC 60287-1-1, as well as on voltage drop and short current criteria, with the criterion leading to the largest nominal cross-sectional area prevailing; PETROBRAS N-1996, N-1997, N-1998, ABNT NBR 5410, ABNT NBR 14039, and IEC 60364, where applicable, shall be considered. Exposed and underground conduit systems for power, interlocking, control, command, and automation circuits shall be designed in accordance with the requirements set forth in PETROBRAS N-1600 and N-1996. Cable tray systems for circuits intended for power, interlocking, control, command, automation, instrumentation, telecommunications, and data communication networks shall be designed according to the requirements indicated in PETROBRAS N-1997. In case of cable tray systems made from composite material are used, the requirements set forth in PETROBRAS N-2850 shall be met. The criteria needed for segregation of intrinsically safe circuits and non-intrinsically safe circuits shall be considered in accordance with the requirements set forth in ABNT NBR IEC 60079-14 and IEC 60079-11. The cables of the circuits of the power distribution systems shall be segregated according to the rated voltage level and the cables of the control, command, protection, and automation circuits. The cables of the circuits of the power distribution systems shall be segregated according to their nominal cross-sectional areas as indicated in ABNT NBR 5410, ABNT NBR 14039, and IEC 60364, avoiding the presence of cables with very different nominal cross-sectional areas, so as to avoid problems relating to the installation of these cables in conduits or cable tray systems. The criteria needed for segregation of output circuits of frequency converters for speed control of electric motors shall be considered, as well as segregation and alternate routing of normal, essential, emergency power supply circuits. The cables of the power supply and control circuits of the power distribution systems for normal, essential, and emergency loads should be designed so as to be segregated through distinct routes. [Recommended Practice] The design of the emergency power supply systems shall be prepared considering the applicable requirements indicated in NFPA 110. The design of the power supply systems of fire fighting water pump motors shall be prepared considering the applicable requirements indicated in NFPA 20. The design of the power supply for electronic equipment shall be prepared considering the applicable requirements indicated in ANSI IEEE Std 1100.
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7.2.8.3 Cable Pulling Calculation sheets shall be prepared for determining the cable pulling forces of the circuits of the power, control, automation, and lighting systems. These calculation sheets shall take into account distances such as between pull points and manholes, considering the maximum tensile stress data indicated by the cable manufacturers, with a view to sizing the minimum cross-sectional area of the cables (when the cable is expected to be pulled by the conductor) or the cable specification (e.g.: when the cable is expected to be pulled through a steel core). 7.2.8.4 Grounding Systems Provision shall be made for a general grounding network in the entire industrial unit, where a voltage level equal to or higher than 69 kV is supplied or expected to be supplied. The grounding network of the main substations, as well as the grounding networks of the auxiliary substations shall comprise an integral part of the general grounding network. The calculation procedures to be used for sizing the grounding system shall be in accordance with the requirements set forth in ANSI IEEE STD 142 and ANSI IEEE STD 80 (grounding networks not exceeding 100 m on the side). For offshore production units the applicable requirements set forth in PETROBRAS N-2222 and ABNT NBR IEC 61892-1 shall be met. Equipment grounding branches shall comply with the requirements indicated in NFPA 70 Article 250. The design of grounding systems for electronic equipment shall be developed considering the applicable requirements indicated in ANSI IEEE Std 1100. The calculation sheets of grounding system designs shall be presented, including step and touch potential analyses. Depending on the size of the design, these calculations shall be made by means of specific applications or software. 7.2.8.5 Normal and Emergency Lighting Systems The criteria set forth in PETROBRAS N-2006, ABNT NBR 5101, ABNT NBR 5413, ABNT NBR IEC 61892-1, IEC 61892-2, IEC 61892-5 and IEC 61892-6 shall be followed. 7.2.8.6 Electrical Protection Coordination and Selectivity These descriptive memoranda or calculation sheets shall be prepared by the firm responsible for the detailed design, in the event they are not included in the scope of supply of the electrical panel manufacturers. In those cases in which the preparation of these documents is part of the scope of the manufacturers and suppliers, the designer’s scope will include the activities involving analysis, comments, and approval of those documents.
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These descriptive memoranda or calculation sheets shall define the operation of all protection systems based on the philosophies determined in the basic design and justifying the nominal cross-sectional areas of cables, the settings and parameterizations of digital protection relays, the matching of impedances between transformers for instruments, relays, and cables, as well as coordination and selectivity of protection functions between themselves. The applicable recommendations indicated in the following standards shall be followed: ANSI IEEE STD 242, ANSI IEEE STD C37.91, ANSI IEEE STD C37.96, ANSI IEEE STD C37.97, ANSI IEEE STD C37.101, ANSI IEEE STD C37.102, and ANSI IEEE STD C37.110. It is recommended that digital electrical protection and automation systems be based, whenever applicable, on data communication networks of the Ethernet type (redundant). These digital systems shall be based on IEDs, with manageable optical switches. These data communication networks shall be based, whenever applicable, on open protocol IEC 61850 (all parts), with GOOSE type priority messages for protection and control functions, such as logic selectivity, breaker failure, automatic transfer of feeders, momentary parallelism of feeders and load shedding. [Recommended Practice] When the panel designer and/or manufacturer has the information provided by manufacturers and data on the respective models of IEDs and digital protection relays to be used, the coordination and selectivity studies shall be revised so that the necessary set point values are presented according to the functions and coding to be parameterized for protection, control, interlocking of the respective IEDs and digital protection relays, presented in the respective manufacturer manuals. These descriptive memoranda or calculation sheets for protection and selectivity shall be revised so as to include the specific parameters of the various models of digital protection relays and IEDs used. The following parameters, for example, may be mentioned: phase-phase voltage, phase-neutral voltage, phase sequence, current transformer ratio, potential transformer ratio, negative sequence weighting factor, maximum torque angle, synchronism, thermal time constants of motors, generators, and transformers, indication of internal flags used for interlocking, control, and blocking functions and adaptive overcurrent protection functions. These descriptive memoranda or calculation sheets for electrical protection, coordination, and selectivity shall contain the lists of all protection relays and IEDs installed, per panel, containing the manufacturer’s information, model, protection functions used and quantity. 7.2.8.7 Electrical and Process Safety Interlocking Systems
a) these systems shall contain the information of the descriptive memoranda of the electrical system and logic and functional diagrams prepared in the basic design, describing the interlocks inherent in the electrical system involving transformers, motors, generators, and incoming, outgoing, and bus tie circuit breakers of panels;
b) it shall be prepared based on the cause and effect table issued by the process designer, containing the electrical system interface circuits with the digital process control system (such as: DCS system and PLCs) and digital safety interlocking systems, such as PES system and redundant PLCs, including the occasional existence of intrinsically-safe circuits.
7.2.8.8 Signaling and Alarm Systems This part shall define the operation of all visual and/or sound signaling and alarm devices, including digital protection relays, based on the philosophy determined in the basic design and justifying the sizing of cables, the capacity of actuating and actuated devices etc.
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This descriptive memorandum shall contain the definitions of alarms with activation at the installation site of the equipment and/or at a remote location, on screens of the MMI of the digital control and monitoring system. 7.2.8.9 Lightning Protection System (LPS) It shall clearly define the regions requiring protection indicating the criteria adopted. The LPS shall comply with the requirements indicated in ABNT NBR 5419, IEC 62305 Parts 1, 2, 3, and 4, NFPA 780 and NFPA 70 Article 250. In cases of pre-cast concrete structures, for the connections to be made between hardware and grounding conductors, before concreting appropriate connectors shall be used, instead of simply fastening the wires, in accordance with the requirements set forth in the IEC 62305 series of standards. The descriptive memorandum of the LPS shall consider the preparation of plans of safe work regions from the standpoint of lightning. Considering that protection shelters, in case of lightning strikes, have a maximum protection level of 1, as defined in ABNT NBR 5419, the protection level used in the study of safe work regions from the standpoint of lightning should also be 1 (a sphere with a 20 m-radius), according to the requirements set forth in ABNT NBR 5419), so as to provide the highest specified safety level in the standard. [Recommended Practice] 7.2.8.10 Short-Circuit Studies These studies shall follow the instructions contained in 7.1.3 of this Standard, using for calculations the certified data of electrical power equipment and the cables of the power distribution circuits with final dimensions and nominal cross-sectional areas. 7.2.8.11 Load Flow Studies These studies shall follow the instructions indicated in 7.1.4 of this Standard, using for calculations the certified data of electrical power equipment and cables of the power distribution circuits with final nominal cross-sectional areas and dimensions. 7.2.8.12 Industrial Electrical Heat Tracing Systems The requirements of design and installation procedures indicated in PETROBRAS N-1857, as well as those contained in the specifications in PETROBRAS N-2641 shall be followed. 7.2.8.13 Smoke Detection and Alarm System in Panel Rooms, Cable Rooms, Battery Rooms,
Transformer Rooms, and Control Rooms It will be necessary to define the location, quantity, and types of sensors to be installed according to the requirements indicated in ABNT NBR 9441. 7.2.8.14 Electrical Panel Arc Flash Studies Electrical panel arc flash studies, the determination of safe distances, and the specification of PPE to be used by operators and electricians shall be conducted in accordance with the requirements set forth in PETROBRAS N-2830, ANSI IEEE Std 1584, ASTM F 1506, ASTM F 1891, ASTM F 1958, ASTM F 1959, ASTM F 2178, and NFPA 70E.
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7.2.8.15 Construction, Assembly, Commissioning, and Field Testing Services The descriptive memoranda of the construction and assembly, commissioning, and field testing services of the electrical system to be prepared by the designer during the detailed design shall include, at least, the following requirements:
a) list of detailed design documents required for the performance of construction and assembly services;
b) detailed definition of all tasks and services to be performed under the scope of the companies contracted for the construction, assembly, commissioning, and field tests of the electrical systems involved in the projects;
c) separated descriptive memoranda describing the following services: — civil work; — electromechanical assembly; — pulling, splices, connections and terminations of cables; — preservation of equipment; — tests to be performed in the field;
d) relationship between each task and its respective detailed design documents, presenting a quantitative survey of materials and equipment to be installed;
e) list of field tests to be performed by companies contracted during the construction, assembly, and commissioning stage, including the acceptance criteria of tests and applicable technical standards, in conjunction with final field inspection reports so as to comply with the requirements of regulatory standard No. 10 (NR-10) and ABNT NBR 5410, ABNT NBR 14039, ABNT NBR IEC 60079-14, ABNT NBR IEC 60079-17, PETROBRAS N-1600, and N-1614;
f) list the field tests to be performed containing, at least, those recommended by the manufacturer of each equipment.
7.2.9 Detailed Design Drawings 7.2.9.1 Area Classification Studies These studies shall contain, at least, the following information:
a) all information used and documents prepared by the firm responsible for the basic design shall be confirmed and updated according to 7.1.7;
b) the information used in the basic design shall be fully revised and updated in relation to the basic design, in all cases in which updates, changes or modifications are made to the process data or processed flammable substances, in the preliminary layouts of process equipment and buildings, and whenever new risk sources appear during the development of the detailed design.
It is recommended that area classification studies be modeled and performed in 3D CAD application, based on object-oriented databases. The information contained in these databases shall allow the export and import of data to and from CAE type applications. This exchange of information shall allow data to be automatically filled in on Data Sheets of electrical equipment, instrumentation, automation, and telecommunications equipment, as well as verification of the consistency between the specification of equipment purchased and the area classification requirements of the respective installation sites. [Recommended Practice] 7.2.9.2 One-Line Diagrams One-line diagrams shall contain, at least, the following information:
a) representation of power supplies, including voltage, frequency, and number of phases; b) indication of short-circuit level at the input of the system and on all busbars at different
voltage levels;
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c) indication of busbar capacity at continuous rating; d) representation of panel grounding busbars; e) representation of devices for grounding feeders (ground switches); f) representation of switchgear compartments, including spare and future compartments; g) indication of positions of circuit breakers and disconnecting and ground switches under
normal operating conditions of the electrical system; h) representation and identification of input, interconnection, and output circuits; i) representation of all electrical equipment and components of the system; j) representation of power transformers, including rated powers for normal and forced
ventilation (when applicable), voltage levels, impedance, connection types; k) indication of nominal cross-sectional area and formation of cables of power distribution
circuits; l) representation of CT and PT for feeding measuring instruments and protection relays,
including transformer ratio; m) representation of numbering of functions of protection, interlocking, command, signaling,
and alarm devices, according to the requirements of ANSI IEE Std C37.2; n) representation of protection relays and IEDs, with their respective pick-up circuits and
interfaces with digital protection and automation systems; o) representation of protection devices and their respective pick-up points; p) representation of electrical and process interlocks, indicating interfaces with digital
instrumentation and automation control systems; q) representation of electrical and electromechanical interlock circuits between electrical
equipment, such as between panels and transformers; r) representation of local and remote measuring, signaling, and alarm devices; s) representation of measuring instruments, in case these measurements need to be
presented outside the displays of the digital protection relays or IEDs; t) indication of digital and/or analog input and/or output signals intended for electrical or
process digital supervision, automation, protection and control systems; u) representation of command, control, and monitoring circuits of frequency converters for
electric motor speed control, from the digital instrumentation and automation control systems for process control;
v) representation of heating resistors of panels and motors as well as their power supplies; w) identification of circuits; x) representation of interconnections between the equipment referring to the protection,
alarm, signaling, and interlocking circuits. NOTE 1 One-line diagrams shall indicate in the form of blocks all auxiliary equipment used for
supporting power panels as well as other major equipment. Examples of auxiliary equipment include: terminal block boxes, storage batteries, rectifier/battery charger units, UPS, direct current panels, lighting distribution panelboards, panels for distribution of industrial electrical heat tracing circuits etc.
NOTE 2 The specified expansions to be set up in the electrical system shall be represented by dashed lines.
7.2.9.3 Multi-Wire Diagrams Multi-wire diagrams shall contain, at least, the following information:
a) representation of power supplies, including voltage, frequency, and identification of phases;
b) indication of short-circuit level at the input of the system and on all busbars at the different voltage levels;
c) indication of busbar capacity at continuous rating; d) representation of grounding busbars of panels; e) representation of feeder grounding devices (ground switches); f) representation of switchgear compartments, including spare and future compartments; g) indication of positions of circuit breakers and disconnecting switches and ground switches
under normal operating conditions of the electrical system; h) representation and identification of input, interconnection, and output circuits; i) representation of all electrical equipment and components of the system; j) indication of the nominal cross-sectional area and formation of the cables of the power
distribution circuits;
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k) representation of the CT and PT of measuring instruments and protection relays, including the transformer ratio;
l) representation of numbering of functions of devices used in protection, interlocking, control, signaling, and alarm devices, according to the requirements of ANSI IEEE Std C37.2;
m) representation of protection relays and IEDs, with their respective pick-up circuits and interfaces with digital protection and automation systems;
n) representation of protection devices, their nominal characteristics, and respective pick-up points;
o) representation of local measuring, signaling, and alarm devices; p) representation of measuring instruments, in case these measurements need to be
presented outside the displays of the digital protection relays or IEDs; q) representation of heating resistors of panels and motors as well as their power supplies; r) identification of circuits and cables (TAG number); s) identification of the type of circuit, such as power, receptacle or lighting; t) indication of apparent power for circuits for lighting and receptacles; u) distribution of loads in the respective phases in cases of single-phase or two-phase
loads. NOTE The expansions expected to be set up in the electrical system shall be represented by
dashed lines. 7.2.9.4 Functional Diagrams These diagrams shall be prepared for all control, protection, automation, interlocking, measuring, alarm circuits of electrical equipment, such as: circuit breakers, contactors, and disconnecting switches. Applicable to the main electrical equipment, such as, for example, transformers, motors, and frequency converters and auxiliary electrical equipment, such as UPS, auxiliary forced ventilation systems of transformers, electrical heating, ventilation, and air conditioning systems etc. These functional diagrams shall include the representation of alternating current as well as direct current circuits. Functional diagrams shall contain, at least, the following information:
a) indication of type (direct current or alternating current) and supply voltage value of the circuit grounding control and indication circuit, if any;
b) representation of protection devices of circuits and/or their branches; c) identification of all devices represented, respective contacts and/or their parts; d) representation and indication of the function of contacts intended for alarms, commands,
signaling, disconnections or interlocks at remote points, as well as spare contacts; e) indication of the installation site of remote devices acting on the circuit; f) indication of monitoring, control, and interlocking circuits from the process system
installed in control rooms for the electrical substation; g) indication of interfaces of power, control, interlock and frequency converter automatism
circuits for process control, including circuits of digital and analog signals from the digital instrumentation and automation systems for process control and interlocking;
h) indication of positions of circuit breakers and disconnecting and ground switches under normal operating conditions of the electrical system;
i) representation of all electrical equipment and components of the control system; j) representation of CT and PT for feeding measuring instruments and protection relays,
including transformer ratio; k) representation of numbering of functions of devices used for protection, interlocking,
command, signaling, and alarm, according to the requirements of ANSI IEEE Std C37.2; l) representation of protection relays and IEDs, with their respective pick-up circuits and
interfaces with the digital protection and automation systems; m) representation of protection devices and their respective pick-up points; n) representation of electrical and process interlocks, indicating the interfaces with the digital
instrumentation and automation control systems;
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o) representation of electrical and electromechanical interlocking circuits between switchgear compartments or draw-out units;
p) representation of local and remote measuring, signaling, and alarm devices; q) representation of measuring instruments, in case these measurements need to be
presented outside the displays of digital protection relays or IEDs; r) indication of digital and/or analog input/output signals intended for digital electrical or
process monitoring, automation, protection and control systems; s) representation of command, control and monitoring circuits of frequency converters for
controlling the speed of electric motors, from the digital instrumentation and automation control systems for process control;
t) representation of interconnections between the equipment referring to protection, alarm, signaling, and interlocking circuits;
u) representation of an alphanumeric system of coordinates, identifying lines and columns of pages, for locating the devices indicated on the functional diagram. This identification system shall allow the location of contacts and continuation of circuit lines on different pages of the diagram. At the points representing contacts the location of the protection and control device containing this contact shall be indicated;
v) the location of the protection and control devices and their respective contacts shall be of the crossed type, allowing traceability of the location of devices (together with their contacts) and vice-versa;
w) representation of all contacts of control and protection devices, such as protection relays, IEDs, auxiliary relays, contactors, circuit breakers etc. This representation shall include the location of those contacts.
Whenever necessary, functional diagrams shall be complemented by logic diagrams, indicating the control, protection, command, interlocking, and automation logics implemented in programmable equipment and IEDs. In these cases, the numbers of the functional diagrams shall be indicated as reference drawings of logic diagrams and vice versa. In this detailed design phase, the information and documents used by the firm responsible for the basic design shall be confirmed and updated, in accordance with the requirements set forth in 7.1.9. 7.2.9.5 Interconnection wiring Diagrams These wiring diagrams shall contain the following information:
a) identification of the various equipment represented on the interconnection diagram, such as terminal block boxes, electrical panels and equipment of digital protection and automation systems of the electrical and process system;
b) identification of the respective terminal block strips of all the equipment indicated on the interconnection diagrams;
c) identification of the origin and destination of conductors arriving at or leaving a terminal block strip;
d) identification of cables in connections to terminal block boxes through indication of the function of the circuits and destinations of those cables.
These interconnection wiring diagrams may be represented in the form of interconnection lists (“to/from” lists) in the form of simple terminal tables. 7.2.9.6 Interconnection Block Diagrams of Major Equipment and Subsystems of the Electrical
System These diagrams shall contain, at least, the following information:
a) the main interconnections of power and control circuits between the main electrical equipment installed inside the substations (such as: power panelboards, TBB, RTU, DCS, OLTC, PLC, PES, marshaling cabinets and equipment of digital protection and automation systems);
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b) these interconnections shall include the main electrical equipment and digital automation systems installed inside the local control rooms and between the various substations;
c) these interconnections shall include, where necessary, the electrical subsystems and electrical equipment installed in the field, such as, for example, local control panels (such as synchronous motors, auxiliary lubrication and sealing panels, compressor control panels, and auxiliary cooling systems).
7.2.9.7 Layouts of Equipment in Substations and Control Rooms - Plans, Sections, and Details These layouts shall contain the following information:
a) drawing orientation (indication of North direction); b) indication of scale used; c) prevailing direction of daytime and nighttime winds; d) detailing of support structures of busbars, walls, fences, gates, accesses, fire walls etc.; e) location and identification of equipment; f) representation of spaces intended for future expansions through dashed lines; g) indication of views and sections; h) indication of necessary elevations; i) location of air intake for pressurization or air conditioning system, where applicable; j) detailing of busbars and lines of energy input circuits, for substations with busbars
located outdoors. The spacing between phases and between phase and ground shall be indicated;
k) reference to documentation of manufacturers of all panels and other equipment installed inside the substations and control rooms, including the documentation of pressurization and/or air-conditioning (VAC) systems;
l) indication of all reference documents. In layout plans of equipment at substations the requirements indicated in PETROBRAS N-2039 shall be met. Section and detail drawings shall represent on the vertical plane all sections and views indicated on the equipment layout drawing - plans, with the complete identification of equipment as well as the necessary dimensions. When the amount of information so allows, the information contained on section and detail drawings of equipment at substations may be presented on the same plan drawing. It is recommended that the design of the layout of equipment at electrical substations and control rooms be developed in 3D CAD application, based on object-oriented databases. This layout design in 3D CAD shall allow the verification of the consistency of the design with other disciplines, such as civil works and instrumentation, so as to set out occasional interference problems, both of the exposed type (such as conduits, cable trays, and supports) and underground types (such as grounding systems, envelopes, and pull boxes of the manhole and handhole type). [Recommended Practice] 7.2.9.8 Exposed Structures of Equipment in Outdoor Substations - Plans, Sections, and Details Documents applicable to the detailing of the external yard containing substations with outdoor busbars, which shall contain, at least, the following:
a) drawing orientation (indication of North direction); b) prevailing direction of daytime and nighttime winds, when applicable; c) detailing of all precast concrete support structures of electrical equipment, including
concrete structures for busbars, poles, CT and PT bases, disconnecting switches, circuit breakers, lightning arresters and insulators;
d) location through elevations and coordinates of all structures represented;
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e) detailing of all structures represented correlated to the respective items of the supplier’s material list;
f) detailing of burial depths of structures; g) indication of all details needed for complementation of structures; h) detailing of location and dimensions of bases, in non-precast reinforced concrete for
support of larger equipment, such as: — power and grounding transformers; — grounding resistors; — support of rails for moving power and grounding transformers;
i) dimensions of containment basins and tanks for collecting mineral oil and representation of the drainage system of those tanks;
j) location and detailing of electrical cable channels; k) location of conduits interconnecting equipment and electrical cable channels; l) detailing of substation fence; m) detailing of the finish bases for self-supporting precast support structures.
7.2.9.9 Equipment Bases Documents intended for development of the detailed design for civil construction, auxiliary substations and/or sheltered parts of the main substations, which shall contain:
a) drawing orientation (indication of North direction); b) prevailing direction of daytime and nighttime winds, when applicable; c) identification of equipment; d) substation plans indicating the location intended for the bases of internal and external
equipment bases; e) location of channels or openings on the floor beneath panels; f) dimensions of bases, channels and openings on the floor, including future provisions; g) location of anchor bolts; h) indication of stresses caused by electrical equipment on bases.
7.2.9.10 Diagram of Loads and Weights on Structures - Plans Drawings applicable to support structures of electrical equipment and busbars, mounted in outdoor areas of main substations, which shall contain, at least, the following:
a) representation in floor plan and sections of all support structures; b) plan orientation (indication of North direction); c) indication of all elevations in horizontal and vertical planes; d) indication of all horizontal loads imposed on the support structures by the tensile action of
guard cables as well as of conducting and insulating busbars; e) representation of the portico of the substation with indication of distance from the portico
to the first structure of the transmission line; f) indication of the efforts on the portico of the entry from the pulling of the transmission line
on the portico; g) indication of loads on bases of electrical equipment, such as: poles, CT and PT bases,
disconnecting switches, circuit breakers, lightning arresters and insulators, due to the weight of the equipment and the loads of cables or busbars;
h) indication of weights of all equipment, related to the respective support structures; i) indication of action of loads on the respective support structure from the circuit breaker
opening operation (compression or pulling force of base); j) indication of prevailing direction of local winds as well as of the value of the highest speed
recorded. 7.2.9.11 Main Electrical Network - General Plan or Key Plan This document shall be prepared in those cases in which the main network covers a very extensive area requiring the preparation of various plans for its representation in details; it shall contain, at least, the following information:
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a) drawing orientation (indication of North direction); b) indication of routing of overhead and underground networks; c) identification of exposed pull points or underground manholes; d) identification of poles; e) delimitation of areas corresponding to the various specific plans of the network; f) indication of the reference of the numbering of all specific plans comprising the main
electrical network in the general plan or key plan. 7.2.9.12 Underground Electrical Networks - Plans The design of electrical networks in concrete envelopes and with cables directly laid in the ground shall be prepared in accordance with the requirements of PETROBRAS N-1996.
a) underground electrical network plans shall contain, at least, the following information: — drawing orientation (indication of North direction); — general plan or key plan, locating the covered areas, in case there are various areas; — location of envelopes of power, control, and lighting systems, data communication
networks and telecommunications systems, points emerging to pull points; — location of cables directly laid in the ground and location of route markers; — location, identification, and detailing of pull points of cables laid in underground
envelopes; — indication of depth of envelopes of primary and secondary networks, in those cases in
which it is necessary to prepare detailed drawings of sections; — notes indicating the characteristic strength of concrete, the pigmentation of the top
surface of the envelopes, the type of foundation or preparation of the ditch bottom, the type of conduit, minimum bend radii for conduits or cables, minimum allowable depth for envelopes or cables laid directly in the ground;
— indication of means of mechanical protection for cables laid directly in the ground and physical characteristics of the material used for filling ditches after laying the cables, as well as the requirements for their compaction;
— indication of ground grids and of branches for grounding; b) the plans of substation buildings or control rooms in which the conduits emerge directly
inside the cable room or cable basement of those buildings shall contain, besides the information indicated in a) the following additional data: — representation of ground plan of substation building or control room, fire walls, fences,
gates etc.; — representation of bases of outdoor equipment; — representation through dashed lines of the contour of internal equipment and
compartments of substation panels; — representation of emergence of conduits inside the cable room or from the substation
basement or control room; the identification and nominal cross-sectional area shall be indicated beside each conduit; emerging parts having a large number of conduits shall be represented through special details on plans, views and/or sections, indicating the accessories and other constructive details, including grounding and sealing (border criterion for hazardous regions);
— indication of elevations: the elevation of conduits shall be determined, at emerging points, from their centerlines in relation to the surface of walls, centerlines of outdoor equipment bases, channels beneath panels etc.;
c) when the amount of information allows so, the detailing of profiles, sections, underground manholes and exposed pull points may be included in the same plan drawings, in accordance with the instructions of 7.2.9.13 to 7.2.9.16, respectively.
It is recommended that the design of underground electrical networks be developed in 3D CAD application, based on object-oriented databases. This underground electrical network design in 3D CAD shall allow the verification of the consistency of the design with other disciplines, such as: civil works (drainage ditches, buried piping, process equipment bases and building foundations), instrumentation and telecommunication envelopes and underground grounding systems, so as to set out occasional interference problems. [Recommended Practice]
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It is recommended that in process units the underground electrical network plans be represented on the same drawings used by the civil works discipline, for the development of the drainage design and other buried and underground structures and/or equipment, so as to make it easier to set out possible interference problems. [Recommended Practice] 7.2.9.13 Underground Electrical Networks - Profiles The design of underground electrical networks shall include the preparation of profile drawings of the main underground electrical networks, of telecommunications and data communication channels, as specified in PETROBRAS N-1996. For instrumentation and secondary underground electrical networks, the representation shall be made only in special cases justifying its preparation, such as: at points subject to interference or requiring representation in details. The profiles of the instrumentation and secondary electrical networks may be represented on the same drawing containing the general network plan or key plan, provided there is enough space for this representation. Two scale values be used should be used, whenever possible, corresponding to a horizontal and a vertical scale, with minimum values of 1:500 and 1:50, respectively, so as to allow representation in details. [Recommended Practice] Profile drawings shall contain, at least, the following information:
a) representation of profile of ground area with the main structures, such as: roads, cable channels, pipeways etc.;
b) representation of interference, such as buried structures or piping; c) indication of elevations of ground level, points of occasional interference, bottom and
internal upper wall of the pull box, exit and entry points of envelopes in the pull box, points with changes in inclination of envelopes etc.
7.2.9.14 Underground Electrical Networks - Sections The sections of underground electrical networks shall contain, at least, the following information:
a) identification of sections; b) identification of conduits in envelopes; c) identification of cables laid directly in the ground; d) indication of nominal cross-sectional areas of conduits; e) distances between conduits and between these conduits and the outside part of the
envelope; f) indication of distances between cables laid directly in the ground and between those
cables and the side walls of ditches; g) indication of depths of envelopes in the case of secondary or instrumentation networks, in
case this information is not included in plan view; h) indication of depth of mechanical protection of cables laid directly in the ground, in case
this information is not included in profiles; i) width and depth of ditch for cables laid directly in the ground.
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7.2.9.15 Underground Manholes - Constructive Characteristics Pull boxes, when used for electrical networks containing medium-voltage or high-voltage circuits, shall follow the requirements set forth in PETROBRAS N-1711. When pull boxes smaller than those indicated in PETROBRAS N-1711 are necessary for the passage of low-voltage circuits, instrumentation, data communication and telecommunication channels, specific details shall be prepared, standardizing the smallest possible number of types. The drawings presenting these boxes shall present the same level of detailing as the standardized drawings indicated in PETROBRAS N-1711. 7.2.9.16 Exposed Pull Points for Underground Electrical Networks - Details The detailing of these boxes may be represented on the same drawings containing the plans of the underground electrical networks, provided there is enough space for this representation. Drawings shall represent the arrangements of the boxes, containing, at least, the following information:
a) orientation in plan view of each cable pull point; b) identification of conduits; c) identification and detailing of pull boxes used; d) indication of spare pull boxes, for future use, through their representation with dashed
lines; e) indication of accessories for conduits according to the symbology specified in
PETROBRAS N-898; f) representation of grounding of pull points; g) representation of typical side views, indicating the assembly detail of boxes and
accessories and the base of pull points; h) indication of elevations in relation to the centerlines of pull points and conduits.
7.2.9.17 Underground Manholes - Cable Arrangement This plan shall contain, at least, the following information:
a) drawing orientation (indication of North direction); b) detailing of boxes in plans through their outlines; c) the walls of the box having “windows” shall be lowered on the horizontal plane
(background); d) boxes shall be represented in the sequence in which they are found in networks and duly
identified; e) detailing of conduits arriving at each “window” of the box; f) identification of circuits according to their function; g) detailing of arrangement of cables inside the boxes; h) indication of position and types of splices to be made in power cables.
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7.2.9.18 Overhead Electrical Networks - Plans The design of overhead electrical networks shall be prepared according to the requirements indicated in PETROBRAS N-1998. The plans shall contain, at least, the following information:
a) drawing orientation (indication of North direction); b) indication of coordinates for location of all cable support structures; c) detailing of overhead network route; d) identification of cable support structures; e) key plan locating the represented areas in case there are several areas; f) notes describing the construction of the networks, in case there is no descriptive
memorandum for the installation covering 7.2.9.18; g) indication of lightning rod downcomers as well as grounding branches of any equipment
or material. NOTE When the amount of information allows so, the profile and details of the electrical networks
may be represented on the same plan drawing and may be according to 7.2.9.19. 7.2.9.19 Overhead Electrical Networks - Details These details shall contain the following information:
a) detailing of each type of structure, with all its components (spacer cables, poles, cross-arms, brackets, insulators, guys, guy supports, lightning arresters, potheads, disconnecting switches etc.);
b) detailing of fastening of conductors to insulators; c) detailing of cable type (bare, insulated, pre-bundled, protected etc.); d) detailing of all necessary elevations; e) detailing of attachment of bases of structure to the ground; f) detailing of connections and materials for grounding.
7.2.9.20 Exposed Installations - Plans Drawings containing the exposed routing of power, control, lighting, instrumentation systems and telecommunications and data communication channels. These drawings shall include the simplified layout of the area, including sufficient details for the location, installation, and support of electrical equipment and materials, including exposed conduit systems, cable tray systems, motors, local power panels, electrical heat tracing circuit distribution panels, lighting circuit distribution panels and service receptacles, lighting systems, field control push button stations. The design of exposed installations shall detail all conduits with their identifications, elevations, accessories, nominal cross-sectional areas, changes in levels, drawing orientation (indication of North direction), indication of continuation on other drawings. The installations referring to instrumentation, data communication and telecommunication channels shall be represented on specific drawings.
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It is recommended that the design of exposed installations of equipment and materials referring to electrical systems be developed in 3D CAD, based on object-oriented databases. This design of exposed installations in 3D CAD shall allow verification of the consistency of the design with other disciplines, such as: civil works (metallic or concrete structures and buildings), exposed piping, process equipment, instrumentation and telecommunications (conduit and cable tray systems) and exposed lightning protection systems (LPS), so as to set out occasional interference problems. [Recommended Practice] 7.2.9.21 Distribution of Circuits in Channels on the Floor of the Substation or Control Room In the case of substations or control rooms where it is not possible to install raised floors or a cable basement for distribution of circuits, the channel system may be used on the floor. The design of channels shall contain, at least, the following information:
a) representation in plans and sections, detailing the main channels and their branches; b) detailing of arrivals of conduits interconnecting channels to the various electrical
equipment and devices; c) indication of all support elements for power, lighting, protection, automation, control
cables and data communication network channels installed in these channels; d) detailing of grounding connections for these support elements; e) detailing of circuits contained in each channel section; f) detailing of the dimensions of the channels in their various sections; g) detailing of bottom elevations in the various sections of the channel system; h) detailing of connection of this channel system to the local drainage system, where
applicable; i) representation of covers or gratings of channels with their respective dimensions.
7.2.9.22 Typical Assembly Details - Distribution of Power and Control, Lighting, Grounding,
LPS, Attachment and Supports For the representation of typical details, it will be necessary to mention PETROBRAS standards, if any, standardizing the desired installation, the designer’s standards previously approved by PETROBRAS, or specific drawings shall be prepared. The symbology used on the drawing shall be according to the requirements of PETROBRAS N-898. Typical equipment assembly details shall contain, at least, the following information:
a) representation in plans, views, and sections of all electrical equipment items supported by their respective structures;
b) representation of the entire routing infrastructure through exposed or underground conduits or cable tray system connected to these electrical equipment items, indicating the points of attachment to the support structures;
c) representation of all connections to the ground of these electrical equipment items; d) representation of elevations in horizontal and vertical planes; e) indication of the respective list of materials, which shall contain the following information:
item number, material description, material number, quantity, and identification of the respective manufacturer drawings. When applicable, this list shall be presented on the drawing itself together with the typical detail;
f) indication of all reference documents, such as the manual of the manufacturer of the electrical equipment indicated in the typical detail.
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It is recommended that typical details of electrical installations be preferably prepared by the user of the design, so as to consolidate its existing sound practices or standards of its installations. In cases in which the user has no typical detail drawings, these shall be prepared by the designer. Among the sets of typical detail drawings to be used or prepared, the following are included: typical details of lighting systems, typical details of grounding systems, typical details of lightning protection systems, typical details of power and control distribution and typical details of supports and attachments. [Recommended Practice] The numbers or codes of typical details shall be indicated on all plan and section drawings at each point of application of the respective typical details used. 7.2.9.23 Power and Lighting Circuit Distribution Plans These plans shall contain, at least, the following information:
a) drawing orientation (indication of North direction); b) indication of key plan, on a reduced scale, with the identification of the position of the
considered plan being detailed; c) identification of circuits (TAG number); d) indication of type, quantity, and power of loads; e) identification of phase, neutral, and ground conductors in power and lighting circuits; f) indication of receptacles for general use and specific use, such as for providing power to
welding machines; g) indication of place of installation of lighting fixtures connected to the circuit.
It is recommended that the design of power and lighting distribution plans be prepared in 3D CAD based on object-oriented databases. This 3D CAD design shall allow verification of the consistency of the design with other disciplines, such as: civil works (metallic or concrete structures and buildings), exposed piping, process equipment, instrumentation and telecommunications (conduit and cable tray systems) and exposed lightning protection systems (LPS), so as to set out occasional interference problems. [Recommended Practice] 7.2.9.24 LPS Plans The design for protection of structures against lightning shall comply with the requirements set forth in ABNT NBR 5419. For the design of offshore production units the design for protection of structures against lightning shall comply with the requirements set forth in IEC 61892-6, IEC 60092-401, and NFPA 780. These plans shall contain, at least, the following information:
a) orientation of plan drawing (indication of North direction); b) representation in plans and sections, with the respective elevations, of all buildings,
structures, and equipment to be protected by the LPS, indicating all protected regions, defined based on the location of LPS elements, such as: capturing heads, rods, structures, and conductors;
c) representation in plans, views, and sections of all capturing elements, clearly showing the devices for connection to down conductors, attachment of those cables to buildings, structures, and equipment, as well as their connections to the respective ground grid;
d) representation of the local ground grid intended for dissipation of surges caused by lightning from the LPS elements, such as: capturing heads, rods, structures, and conductors;
e) indication of location of SPDs; f) identification of protection conductors.
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LPS plans shall contain information on the extents of safe work areas in case of lightning. These extents, presented in the forms of plans, sections, and details (in 2D CAD) or electronic models (3D CAD) shall contain information on safe work heights in each region of the installation. LPS plans should indicate the safe work regions considering, in all existing regions of each plan, a safe distance of 3 m. This safe distance shall be considered as being 3 m below the height determined by the region protected by the LPS, with a type 1 protection level. [Recommended Practice] Considering that the protection shelters, in case of lightning, have a maximum protection level of 1, as specified in ABNT NBR 5419, the protection level used in the study of safe work regions from the standpoint of lightning should also be 1 (a sphere with a 20 m-radius according to the requirements indicated in ABNT NBR 5419), so as to provide the highest safety level specified in the Standard. [Recommended Practice] It is recommended that the LPS design be developed in 3D CAD based on object-oriented databases. This 3D CAD design shall allow the verification of the consistency of the design with other disciplines, such as: civil works (metallic or concrete structures and buildings), exposed piping, process equipment, instrumentation and telecommunications (conduit and cable tray systems), so as to set out occasional interference problems. [Recommended Practice] 7.2.9.25 Grounding Plans Grounding plans shall contain the following information:
a) orientation of plan drawing (indication of North direction); b) indication of key plan, on a reduced scale, with identification of the position of the
considered plan that is being detailed; c) representation in plans and sections, with the respective elevations, of the exposed and
underground grounding systems; d) representation in plans, views, and sections of all elements of the grounding system,
such as: handholes, rods, grounding cables, connectors, ground bars; e) identification of protection conductors (TAG number).
The design of grounding systems be developed in 3D CAD based on object-oriented databases. This 3D CAD design shall allow the verification of the consistency of the design with other disciplines, such as: civil works (metallic or concrete structures and buildings), exposed piping, process equipment, instrumentation, and telecommunications (conduit and cable tray systems), so as to set out occasional interference problems. [Recommended Practice] 7.2.10 Cost Estimates for Materials, Equipment, and Assembly, Testing, and Commissioning
Services 7.2.10.1 The designer shall prepare cost estimates for supplies of materials, equipment, and spare parts, and assembly services, configuration of communication data networks / protection / automation / control, factory acceptance testing, field acceptance testing, commissioning, follow-up of startup and As-Built updating of designed electrical systems. 7.2.10.2 They shall be made in the FEED and electrical detailed design phases.
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7.2.10.3 Cost estimates shall contain values referring to tagged equipment, such as: power, protection, control, and automation panels, transformers, OLTCs, generators, motors, rectifiers, frequency converters, UPS, optical switches, battery chargers, storage batteries. The costs referring to spare parts required shall also be considered. 7.2.10.4 Cost estimates shall contain the values referring to miscellaneous materials for power, control, protection, grounding, and LPS systems, such as: cables, terminations, splices, conduits and accessories, supports, lighting fixtures, cable trays, and anti-flame protection systems. 7.2.10.5 They shall contain the prices referring to the construction of buildings needed for the electrical design, such as substations, panel rooms, cable rooms, control rooms, transformer rooms, battery rooms, and VAC rooms. 7.2.10.6 The estimates shall include costs referring to administration of interfaces and integration of design and assembly services of electrical systems of modules and packages from different suppliers, such as: electric generation, gas compression, furnaces, and integration of communication protocols with the other parts of the electrical design. 7.2.10.7 The estimates shall include the costs referring to training of personnel. 7.2.11 Technical Specifications of Electrical Equipment and Materials All Technical Specifications for the purchase of electrical equipment and materials shall comply with the requirements indicated in the respective PETROBRAS standards, according to the specific requirements of each design. For the purchase of electrical equipment and materials which occasionally do not have Technical Specifications standardized by PETROBRAS standards, the format of the purchase documentation shall comply with the requirements set forth in PETROBRAS N-381. The content of these purchase documents shall follow the standard adopted by the designer and approved by PETROBRAS. The degrees of protection of enclosures of electrical equipment and rotating electrical machinery (IP Codes) shall be selected according to the requirements set forth in ABNT NBR IEC 60529 and ABNT NBR IEC 60034-5, respectively. Electrical equipment for designs of ships, platforms, and fixed or mobile offshore units shall comply with the applicable requirements indicated in IEC 61892-3. 7.2.12 Electrical Equipment Data Sheets All Data Sheets for the purchase of electrical equipment shall comply with the requirements indicated in the respective PETROBRAS standards according to the specific requirements of each design. For the purchase of electrical equipment that may occasionally not have Data Sheets standardized by PETROBRAS standards, the format of the purchase documentation shall comply with the requirements indicated in PETROBRAS N-381. The contents of these purchase documents shall follow the standard adopted by the designer and approved by PETROBRAS.
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7.2.13 Material Requisitions All material requisitions for the purchase of electrical equipment and materials shall comply with the requirements indicated in PETROBRAS N-1913 and N-1973, according to the specific requirements of each design. In the case of material requisitions (RMs) for the purchase of electrical equipment and materials which may occasionally not have technical descriptions standardized by PETROBRAS standards, the format of the purchase documentation shall comply with the requirements indicated in PETROBRAS N-381. The content of these purchase documents shall follow the standard adopted by the designer and approved by PETROBRAS. 7.2.14 Technical Reports 7.2.14.1 The technical reports to be prepared by the designer for evaluation of bids for the supply of electrical equipment shall contain, at least, the following topics:
a) objective: accurate definition of the purpose of the technical report clearing presenting the tag numbers of the electrical equipment involved;
b) initial conditions: brief explanation of the documentation of the technical proposal received for issuance of the report and the technical criteria used for analysis and acceptance of offered equipment;
c) technical analysis: summary of work for checking documents received with the bid, as well as the documentation generated for the preparation of the technical report, with a view to correcting, complementing and technically equalizing the bids for the equipment offered;
d) the technical analysis shall indicate the following information: — the numbers of the RMs issued as well as any other basic documents used for
quotation; — indication of numbering, revision, and data of documentation submitted by the
suppliers for analysis in their bids; — indication of time periods for supply of the offered equipment; — in cases of “technically unacceptable” technical reports, the reasons for non-
acceptance of offered equipment shall be indicated, considering the documentation of the analyzed bids;
— in cases of technical reports that are “technically acceptable provided the comments are heeded”, all technical pending items which shall be satisfied by the manufacturers for the issuance of a conclusive technical report shall be indicated;
e) conclusion: issuance of the conclusive technical report, informing if the technical proposals presented are acceptable or not, based on the bids and other complementary documents presented by the suppliers.
7.2.14.2 The technical analysis and the respective technical report shall present specific items for each bidder. 7.2.14.3 Together with the technical report, a summary table of the technical evaluation of the bids submitted shall be presented, containing all items listed on the Data Sheets, RMs and on other documents comprising the Purchase Requisition. 7.2.15 Electrical Equipment Design and Manufacturing Schedules 7.2.15.1 The schedules for the electrical design shall be developed by the designer. They shall be supplied in a simplified manner together with the technical proposals provided by bidders. The detailed design schedules shall be presented periodically by the designer so as to allow follow-up of the progress of the design and identification of occasional delayed stages, so as to allow technical and management actions to be taken for their correction.
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7.2.15.2 Electrical equipment manufacturing schedules shall be prepared by manufacturers and/or suppliers of the main electrical equipment defined by the user of the design. They shall be supplied, in a simplified manner, together with the technical proposals provided by the bidders. The detailed manufacturing schedules shall be presented by the successful manufacturer and/or supplier of the bidding process, so as to allow follow-up of the progress of the various stages applicable to the supply, such as: provision of materials, manufacturing, tests, inspection, packaging, commissioning, transportation, approval of documentation, approval of data books, training, assembly supervision, start-up supervision etc. These detailed schedules shall allow identification of occasional delayed stages, so as to allow technical and management actions to be taken for their correction. 7.2.15.3 It is recommended that the electrical equipment design and manufacturing schedules be prepared according to the PERT/CPM concepts in suitable applications for this purpose, with a clear identification of critical paths for the development of the design and manufacturing of electrical equipment. [Recommended Practice] 7.2.16 Lists of Documents of Electrical Equipment These lists shall be prepared by the manufacturers and/or suppliers of the respective electrical equipment and be incorporated into the general list of design documents by the designer. These lists shall include, but not be limited to, the following documents: inspection plans, factory acceptance test plans, manufacturing schedule, painting plans, technical specifications, Data Sheets, diagrams, lists of materials, lists of spare parts, training plans, dimensional and electromechanical drawings, conformity certificates, factory and field acceptance test reports, transportation, storage, assembly, operation, and maintenance manuals, digital equipment configuration instructions. The lists shall identify all documents to be prepared and issued by the manufacturers and/or suppliers and shall indicate the dates scheduled for preparation and issuance for approval of each listed document. 7.2.17 Electrical Equipment Drawings The issuance of electrical equipment drawings shall be divided into groups. These drawings shall be submitted in parts so as to meet the equipment manufacturing priorities. These documents shall be issued so as to meet the information acquisition needs for the development of the electrical design and/or of other disciplines, such as architecture, civil works, instrumentation, and automation. 7.2.18 Electrical Equipment Test Reports These reports shall be prepared by the manufacturers and/or suppliers of the respective electrical equipment and incorporated into the general list of design documents by the designer. The purchase documents issued by the designer, such as Data Sheets and RMs, shall define the type and special tests required for each equipment, as well as the submission of the respective reports on tests performed in laboratories or factories or conformity certificates.
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The reports containing the results of routine, type, and special tests performed on equipment shall be provided by the manufacturers right after the tests are performed. 7.2.19 Electrical Equipment Transportation, Storage, Assembly, Operation, and Maintenance
Instruction Manuals Documents prepared by manufacturers and/or suppliers, containing, at least, the following information:
a) technical specifications of equipment, components, and accessories, according to all technical requirements indicated in the original bid, as well as the revisions and additions made at the time of technical clarifications and/or of the technical report;
b) Data Sheets duly filled out “as purchased” and/or “As-Built”; c) procedures for transportation, receipt, storage, assembly, operation, and maintenance of
equipment, components, accessories or spare parts; d) list of spare parts supplied according to the indications of the RM or for two years of
operation, including the service life of each part; e) procedures for predictive, preventive, and corrective maintenance of equipment,
components, and accessories; f) technical manuals with all characteristic data of components and accessories supplied
with the equipment. 7.2.20 Verification of Supplier Documents (VDF) 7.2.20.1 VDF activities shall be carried out by the designer. 7.2.20.2 The designer shall carry out all actions and activities referring to the drawings, diagrams, documents, and certificates submitted by the various manufacturers and/or suppliers of electrical equipment and systems involved in the design. 7.2.20.3 The activities to be carried out by the designer with respect to the documentation of manufacturers and suppliers include:
a) initial receipt and numbering of all drawings and documents sent by the manufacturers and/or suppliers applicable to the detailed electrical design;
b) inclusion of these manufacturer and/or supplier documents and drawings, after duly numbered, in the list of design documents, prepared by the designer. These documents and drawings shall have the same control, follow-up, management, and traceability level as the other design drawings and documents prepared and/or revised by the designer in the detailed electrical design;
c) analysis and preparation of comments of such documents and drawings based on the design requirements indicated in the purchase documentation;
d) subsequent receipts of such documents and drawings, analysis and verification of incorporation and heeding of the comments made earlier;
e) final approval of such documents and drawings, together with the user of the design or consolidating the comments made by the user of the design, returning such documents and drawings to the respective manufacturers and/or suppliers in the “released for manufacturing” condition;
f) receipt of such documents and drawings in the “certified”, “As-Built”, “as-purchased” or “as-supplied” condition;
g) comments and final approval of “certified” documents; h) registration and deployment of such certified documents in the technical document
management system of the user of the design, including the respective data books and conformity certificates of electrical and electronic equipment for explosive atmospheres.
7.2.20.4 The designer shall revise and update the documents and drawings prepared in the detailed design based on the data and information indicated in the certified manufacturer and/or supplier documents and drawings.
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7.2.21 Technical Report of Detailed Electrical Design After completion of all detailed electrical design services, the designer should prepare and supply a Technical Report on the Electrical Design, in accordance with the requirements indicated in 7.2.21.1 to 7.2.21.5. [Recommended Practice] 7.2.21.1 It shall attest that the design involving all electrical installations is in accordance with the requirements of the technical standards applicable to each design. 7.2.21.2 It shall attest that the design involving all electrical installations is in accordance with the requirements of regulatory standard No. 10 (NR-10). 7.2.21.3 It shall be issued and signed by the designer’s Electrical Engineer, duly qualified and with issuance of the respective ART. 7.2.21.4 The user of the design is responsible for filing the Technical Report in the technical documentation system or handbook of the design location, so as to attest the conformity of the design with legal requirements in audit or inspection events. 7.2.21.5 The Technical Report shall contain, at least, the following information:
a) number of ART obtained from CREA; b) reference to descriptive memorandum of design; c) list of design drawings and manufacturers involved in the design; d) protection measures adopted and designed against electrical shocks; e) protection measures adopted and designed against thermal effects; f) criteria for selection of electrical circuits, such as voltage level, number of phases and
type of grounding; g) criteria for selection, adjustment, and location of protection, disconnecting, and control
devices; h) identification of components; i) criteria for accessibility and adaptation of safe work spaces.
7.2.22 Updating of Electrical Design Documentation in As-Built Condition The designer shall revise, in applicable cases in which this action is part of its scope of services, all design documents and drawings, including those provided by manufacturers and/or suppliers in the As-Built condition. It is recommended that services for updating the technical documentation of the electrical design (As-Built) be performed in accordance with the minimum requirements indicated below: [Recommended Practice]
a) all generated or existing applicable documents and drawings, which have been revised by the designer during the preparation of the detailed electrical design, shall be updated incorporating the modifications made during the field assembly phase;
b) revised drawings, incorporating field modifications, on an As-Built basis, shall clearly present the actual conditions under which the electrical installations and structures are built. Special care and attention shall be given to excavation work. All interfering elements found and not foreseen in the detailed electrical design shall be indicated on the drawing;
c) markings (e.g. ameba type revision marks) found on drawings issued by the assembly designer shall be removed through the As-Built revision;
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d) it will be necessary to remove, through the revision of design drawings and documents in the “As-Built” condition, occasional temporary general notes which have been included by the designer in the drawings released for construction, such as “The Erector shall restore the original conditions of the floor”, “Existing equipment,” “Equipment to be installed,” “Equipment to be removed,” “Equipment to be relocated,” “Contractor’s Scope,” “Service to be performed,” “Services to be performed in the field,” “Occasional non-mapped interference shall be determined in the field,“ “Dimensions shall be checked in the field,” “Connection to existing ground grid from field” etc.
Electronic files and databases of 2D CAD, 3D CAD, and CAE shall be supplied in accordance with the requirements indicated in 5.5.5 of this Standard. 7.2.23 Registration and Deployment by the Designer of the Design Documentation of Suppliers
and Conformity Certificates in the Electronic Technical Document System of the User Activities pertaining to registration and deployment of all design documents and drawings shall be carried out by the designer in the electronic technical document management system of the user of the design, in applicable cases in which these activities are part of the scope of its services. In these cases, when the scope of the designer covers the updating of documentation in the As-Built condition, registration in the technical documentation system shall occur under this As-Built condition. In these cases, the following activities shall be carried out by the designer:
a) registration and deployment of all electricity documents and drawings involved in the design, in applicable cases, including documents/drawings generated by the designer and the documents/drawings found in the facilities of the user of the revised design;
b) registration and implementation of all manufacturer and/or supplier documents and drawings in the As-Built condition, in the technical document management system of the user of the design;
c) registration and implementation of all conformity certificates of electrical and electronic equipment for explosive atmospheres.
7.2.24 Electrical Detailed Design Data Books The designer shall prepare sets of one or more detailed electrical design data books, according to the size of the electrical design and the number of prepared/revised documents. These data books shall contain the necessary documentation, considering the applicable documents prepared by the designer listed in Annex C of this Standard, in each specific design, in accordance with the specific requirements indicated in 7.2. 7.2.24.1 Organization of detailed electrical design documentation manuals (Data Books):
a) documents comprising the Data Books shall be presented in electronic form and in
paper form; b) unless otherwise requested, for the paper form, Data Books shall be bound in blue
plastic pressed cardboard folders 340 mm in height, 240 mm in width, and 70 mm in spine, with fasteners for two holes, containing a TAG holder and fasteners;
c) documents larger than size A3 shall be placed in clear plastic envelopes; d) all folders comprising the same Data Book shall include a complete index of all these
folders, with a cross reference of the contents of each folder; e) each section of each folder shall include a list of documents comprising it;
N-2040 REV. D ENGLISH 10 / 2008
63
f) the CDs or DVDs of the documents and files generated in electronic form shall be attached to the 1st folder comprising the respective data book.
7.2.24.2 Quantity and separation of equipment supplier and design manuals:
a) manuals in printed form shall be prepared in, at least, three copies; b) manuals in printed and electronic form shall be separated for each process unit, utility,
offsite, substation, control room etc.. 7.2.24.3 Contents of Equipment Manufacturer Manuals They shall contain all documents relating to electrical materials and equipment applied to the design, including those supplied by PETROBRAS. These documents include certified drawings, technical specifications, operating and maintenance instructions, Data Sheets, calculation sheets, test certificates, material certificates, catalogs, assembly procedures, lists of spare parts etc.. For each TAG of electrical equipment a data book shall be prepared comprised of the following sections: Section I - design documents:
a) complete list of drawings/documents, including the identification of volumes contained therein;
b) certified drawings / diagrams; c) certified Data Sheets; d) technical specifications; e) performance curves; f) calculation sheets; g) catalogs and manuals.
Section II - suppliers of equipment and materials:
a) manufacturing procedures; b) applicable certificates / reports of type or routine tests performed in the lab; c) manufacturing inspection certificates / reports; d) material certificates; e) conformity certificates; f) factory test reports; g) installation, operation, configuration, parameterization, and maintenance manuals.
7.2.24.4 Together with the data books, CDs or DVDs containing the computer files generated by the applications used in the modeling and simulation of the electrical power system shall be supplied, as indicated in 5.5.6. 8 List of Sections of this Standard with Indication of Recommended Practices Annex A of this Standard contains a list of the subsections where “Recommended Practices” are indicated for the requirements involving activities related to the preparation, presentation, and management of electricity designs and documents.
N-2040 REV. D ENGLISH 10 / 2008
64
This list is presented in order to serve as a guide to make it easier for the user of the design to define the scope of work to be done by the designer, regarding the determination of the obligatory or non-obligatory nature, for a particular design or contract, of the items listed as Recommended Practices in this Standard. 9 List of Topics of this Standard for Determining the Scope and Coverage of Services
for Preparation, Presentation, and Management of Electrical Documents and Designs
Annex B of this Standard contains a list of some topics indicated in this Standard related to the definition of the scope and coverage involving the activities related to the preparation, presentation, and management of electrical designs and documents. This list is presented to serve as a guide to make it easier for the user of the design to define the scope of works to be done by the designer, regarding the determination of the obligatory or non-obligatory nature, for a given design or contract, of the topics covered in this Standard. 10 List of Applicable Design Documents to be Prepared by Designer Annex C of this Standard lists the applicable design documents to be prepared by the Designer in the possible design stages of a project, such as: conceptual, basic, front-end engineering, and detailed design. This list is presented to serve as a guide to help the user of the design define the applicable design documents, regarding the determination of the obligatory or non-obligatory nature, for a given design or contract, of the topics covered in this Standard. The plans, diagrams, and other applicable documents listed below to be issued in 2D format may be generated by export from the databases modeled in CAE and 3D CAD type applications, if required in the design, as specified or recommended in this Standard (see Section 6 of this Standard).
______________
/ANNEXES A, B, and C
No. CLIENT: SHEET of JOB:
AREA:
TITLE: LIST OF SUBSECTIONS OF PETROBRAS N-2040 WITH INDICATION
OF “RECOMMENDED PRACTICES”
INDEX OF REVISION
REV. DESCRIPTION AND/OR REVISED SHEETS
REV. 0 REV. A REV. B REV. C REV. D REV. E REV. F REV. G REV. H DATE DESIGN EXECUTION CHECK APPROVAL THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX A - SHEET 01/04.
No. REV. SHEET of
TITLE:
LIST OF SUBSECTIONS OF PETROBRAS N-2040 WITH INDICATION OF “RECOMMENDED PRACTICES”
Subsection Brief Description of Recommended Practice
(For a detailed description of each requirement, see the respective applicable subsections in PETROBRAS N-2040)
Mandatory application to
design 5.5.3
NOTE 2 Re-issuance, in the detailed design, of studies conducted earlier in the basic design or front-end engineering design stages. Yes No
5.5.3 NOTE 3
Typical design details are provided by the user based on his experience and sound practices. Yes No
6.1.2 It is recommended that modeling of the electrical system involved in the design be performed in the CAE application based on databases. Yes No
6.1.3 Modeling of physical installations of the electrical system involved in the design should be performed in 3D CAD or CAE applications based on databases.
Yes No
6.1.4
Documents providing input to the databases of the model in 2D CAD, 3D CAD or CAE applications should adopt a procedure standardizing the automatic revision control system so as to ensure that the databases are always integrated and updated.
Yes No
6.1.6 The configuration of the information modeled in the integrated databases of 3D CAD should allow data to be exported for purchasing through importation by CAE application in electrical designs.
Yes No
6.1.7 Representation and modeling in 3D CAD application, whenever applicable, of all physical facilities comprising the electrical system, including equipment, buildings, and materials.
Yes No
6.1.8 Generation of documents in 2D CAD format, from the export of data from the modeling prepared in 3D CAD, for printing as well as filing in the technical document management system.
Yes No
6.1.9
It is recommended that the documents generated from 3D CAD or CAE application and exported and generated electronically in 2D format contain, on the margin below the legend, the following applicable warning note: Legend for 2D files generated from 3D CAD applications “ATTENTION: Document originally generated in 3D CAD application. Revise this document only using the electronic model in 3D CAD. DO NOT REVISE this document from the 2D CADD format”; Legend for 2D files generated from CAE applications: “ATTENTION: Document originally generated in CAE application. Revise this document only from the CAE electronic model. DO NOT REVISE this document from the 2D CAD format”.
Yes No
6.2 It is recommended that the CAE and CAD applications used for the preparation of the electrical design, in its various stages, be provided with features and systems for automatic indication and control of revisions
Yes No
6.3 Setting up in the electrical designs of an electronic technical document management system based on EDMS (Electronic Document Management System) concepts, with possibility of sending automatic information and messages via the Internet or Intranet.
Yes No
7.1.8.1 Each electrical panel should have its own one-line diagram, which should represent power, control, and protection circuits and interlocks with other electrical power panels, transformers, and digital protection and automation systems.
Yes No
7.1.8.2
Electrical panel manufacturers should use the one-line diagrams prepared in the detailed design stage to include new information and data of technical characteristics of components in the panel manufacturing stage. The panel manufacturer should not prepare other one-line diagrams, so as to avoid the duplicity of documents and information.
Yes No
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX A - SHEET 02/04.
No. REV.
SHEET of
TITLE:
LIST OF SUBSECTIONS OF PETROBRAS N-2040 WITH INDICATION OF “RECOMMENDED PRACTICES”
Subsection
Brief description of Recommended Practice (For a detailed description of each requirement, see the respective applicable
subsections of PETROBRAS N-2040)
Mandatory application in
design
7.2.8.2 Cables of the power supply and control circuits of the power distribution systems for normal, essential, and emergency loads should be designed so as to be segregated through distinct routes.
Yes No
7.2.8.6
Digital electrical protection and automation systems should be based, whenever applicable, on data communication networks of the Ethernet type (redundant). These digital systems should be based on IEDs, with manageable optical switches, with open protocol according to IEC 61850 and GOOSE type priority messages
Yes No
7.2.8.9 The descriptive memorandum of the LPS should consider the preparation of plans of safe work regions from the standpoint of lightning. Yes No
7.2.9.1 Area classification studies should be modeled and performed in 3D CAD application based on object-oriented databases. The information contained in these databases should allow the export and import of data to and from CAE type applications.
Yes No
7.2.9.7 The design of the layout of equipment at electrical substations and in control rooms should be developed in 3D CAD applications based on object-oriented databases.
Yes No
7.2.9.12 The design of underground electrical networks should be developed in 3D CAD application based on object-oriented databases. Yes No
7.2.9.12
In process units the underground electrical network plans should be represented on the same drawings used by the civil works discipline, for the development of the drainage design and other buried and underground structures and/or equipment, so as to make it easier to set out possible interference problems
Yes No
7.2.9.13 Two scale values should be used, whenever possible, corresponding to a horizontal and a vertical scale, with minimum values of 1:500 and 1:50, respectively, so as to allow representation in details.
Yes No
7.2.9.20 It is recommended that the design of exposed installations of equipment and materials referring to electrical systems be developed in 3D CAD based on object-oriented databases.
Yes No
7.2.9.22 Typical details of electrical installations should be prepared by the user of the design so as to consolidate the existing sound practices or standards of its installations.
Yes No
7.2.9.23 It is recommended that the design of power and lighting distribution plans be prepared in 3D CAD based on object-oriented databases. Yes No
7.2.9.24 LPS plans should indicate the safe work regions considering, in all existing regions of each plan, a safe distance of 3 m. This safe distance should be considered as being 3 m below the height determined by the region protected by the LPS, with a type 1 protection level.
Yes No
7.2.9.24 The protection level used in the study of safe work regions from the standpoint of lightning should be 1 (a sphere with a 20 m-radius according to the requirements indicated in ABNT NBR 5419), so as to provide the highest safety level specified in the standard.
Yes No
7.2.9.24 It is recommended that the LPS design be developed in 3D CAD applications based on object-oriented databases. Yes No
7.2.9.25 The design of grounding systems should be developed in 3D CAD based on object-oriented databases. Yes No
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX A - SHEET 03/04.
No. REV.
SHEET of
TITLE:
LIST OF SUBSECTIONS OF PETROBRAS N-2040 WITH INDICATION OF “RECOMMENDED PRACTICES”
Subsection
Brief description of Recommended Practice (For a detailed description of each requirement, see the respective applicable
subsections of PETROBRAS N-2040)
Mandatory application in
design
7.2.15.3 It is recommended that the electrical equipment design and manufacturing schedules be prepared according to PERT/CPM concepts in suitable applications for this purpose, with a clear identification of critical paths for the development of the design and manufacturing of electrical equipment.
Yes No
7.2.21 After completion of all design services, the designer should prepare and supply a Technical Report on the Electrical Design, attesting that the designs developed are in accordance with the safety requirements indicated in regulatory standard No. 10 (NR-10).
Yes No
7.2.22 Technical documents of the electrical design and from manufacturers and/or suppliers should be updated on an “As-Built” basis. Yes No
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX A - SHEET 04/04.
No. CLIENT: SHEET of JOB:
AREA:
TITLE: LIST OF TOPICS OF PETROBRAS N-2040 FOR DETERMINING THE SCOPE AND COVERAGE OF
SERVICES FOR PREPARATION, PRESENTATION, AND MANAGEMENT OF ELECTRICAL DOCUMENTS AND DESIGNS
INDEX OF REVISION
REV. DESCRIPTION AND/OR REVISED SHEETS
REV. 0 REV. A REV. B REV. C REV. D REV. E REV. F REV. G REV. H DATE DESIGN EXECUTION CHECK APPROVAL THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX B - SHEET 01/02.
No. REV. SHEET of
LIST OF TOPICS OF PETROBRAS N-2040 FOR DETERMINING THE SCOPE AND
COVERAGE OF SERVICES FOR PREPARATION, PRESENTATION, AND MANAGEMENT OF ELECTRICAL DOCUMENTS AND DESIGNS
Activities included within the scope of the electrical design
(For details of each requirement, see the respective applicable sections in PETROBRAS N-2040)
Mandatory application in
design
1 Conceptual design Yes No
2 Basic design Yes No
3 Front-end engineering design Yes No 4 Detailed design Yes No 5 Assessment of the existing technical documents to be revised, in cases of
expansions and modifications of existing electrical installations and systems Yes No 6 Revision of design and supplier documentation in As-Built condition Yes No 7 Inclusion of technical design and manufacturer and/or supplier documentation
in the user’s technical documentation management system. Yes No
8 Preparation and issuance of Technical Report attesting that the designs developed are in accordance with the safety requirements indicated in regulatory standard No. 10 (NR-10)
Yes No
9 Preparation of data books containing a copy of new and revised design documents and manufacturer and/or supplier documentation. Yes No
10 Real-time modeling and simulation of transient and steady states of industrial electrical power systems. Yes No
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX B - SHEET 02/02.
No. CLIENT: SHEET of JOB:
AREA:
TITLE: LIST OF APPLICABLE DESIGN DOCUMENTS TO BE
PREPARED BY DESIGNER
INDEX OF REVISION
REV. DESCRIPTION AND/OR REVISED SHEETS
REV. 0 REV. A REV. B REV. C REV. D REV. E REV. F REV. G REV. H DATE DESIGN EXECUTION CHECK APPROVAL THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX C - SHEET 01/09.
No. REV. SHEET of
TITLE: LIST OF APPLICABLE DESIGN DOCUMENTS TO BE
PREPARED BY DESIGNER
1 - DOCUMENTS TO BE PREPARED IN CONCEPTUAL DESIGN
Applicable design documents to be prepared by designer
(For details of each document, see the respective applicable sections in PETROBRAS N-2040)
Mandatory application in
design
1 Lists of normal, essential, and emergency electrical loads Yes No
2 Technical and economic feasibility studies of the electrical system Yes No
3 Descriptive memoranda of the philosophies adopted for the electrical powerdistribution design Yes No
4 Descriptive memoranda of the philosophies adopted for the electrical design ofnormal, essential, and emergency power supply systems Yes No
5 Descriptive memoranda of the philosophies adopted for the grounding design Yes No
6 Descriptive memoranda of the philosophies adopted for determining the types of equipment protection Yes No
7 Descriptive memoranda of the philosophies adopted for specification of equipment to be installed in classified areas Yes No
8 Descriptive memoranda of the philosophies adopted for the electrical lighting design Yes No
9 Descriptive memoranda of the philosophies adopted for the electrical protection, automation, and measurement design Yes No
10 Descriptive memoranda of the philosophies adopted for the electrical interlocking design Yes No
11 Descriptive memoranda of the philosophies adopted for the industrial electrical trace heating design Yes No
12 Descriptive memoranda of the philosophies adopted for the electrical signaling and alarm design Yes No
13 Descriptive memoranda of the philosophies adopted for the electrical lightningprotection design Yes No
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX C - SHEET 02/09.
No. REV. SHEET of
TITLE: LIST OF APPLICABLE DESIGN DOCUMENTS TO BE
PREPARED BY DESIGNER
2 - DOCUMENTS TO BE PREPARED IN BASIC DESIGN
Applicable design documents to be prepared by designer
(For details of each document, see the respective applicable sections in PETROBRAS N-2040)
Mandatory application in
design
1 List of design documents Yes No
2 Design and document issuance schedule Yes No
3 Lists of electrical loads in the normal, essential, and emergency categories Yes No
4 Basic one-line diagrams Yes No
5 Typical logic and/or functional diagrams Yes No
6 Data list containing the parameters for the main electrical equipment andcircuits of the installation Yes No
7 Load flow study report Yes No
8 Short-circuit study report Yes No
9 Report on studies on voltage drop during startup of motors Yes No
10 Report on evaluation of the electromechanical stability of the system Yes No
11 Electromagnetic transient evaluation report Yes No
12 Real-time modeling and simulation of transient and steady states of industrialelectrical power systems Yes No
13 Report on studies of harmonics introduced into the electrical system Yes No
14 Drawings and documents of preliminary physical installations of electricalsystems and equipment Yes No
15 Descriptive Memoranda for the detailed power distribution design Yes No
16 Descriptive memoranda for the detailed design of normal, essential, andemergency power supply systems Yes No
17 Descriptive memoranda for the detailed grounding design Yes No
18 Descriptive memoranda for the detailed lighting design Yes No 19 Descriptive memoranda for the detailed protection, automation, and
measurement design Yes No 20 Descriptive memoranda for detailed interlocking design Yes No 21 Descriptive memoranda for the industrial detailed electrical trace heating
design Yes No 22 Descriptive memoranda for the detailed signaling and alarm design Yes No 23 Descriptive memoranda for the detailed lightning protection design Yes No 24 Preliminary area classification studies Yes No 25 Electricity data books containing all documents generated Yes No
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX C - SHEET 03/09.
Nº REV. SHEET of
TITLE: LIST OF APPLICABLE DESIGN DOCUMENTS TO BE
PREPARED BY DESIGNER
2 - DOCUMENTS TO BE PREPARED IN BASIC DESIGN
Applicable design documents to be prepared by designer
(For details of each document, see the respective applicable sections in PETROBRAS N-2040)
Mandatory application in
design
26 Data Sheets of main electrical equipment Yes No 27 Technical engineering specifications of equipment and systems Yes No
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX C - SHEET 04/09.
No. REV. SHEET of
TITLE: LIST OF APPLICABLE DOCUMENTS TO BE
PREPARED BY DESIGNER
3 - DOCUMENTS TO BE PREPARED IN FRONT-END ENGINEERING DESIGN
Applicable design documents to be prepared by designer
(For details of each document, see the respective applicable sections in PETROBRAS N-2040)
Obligatory application in
design
1 List of design documents Yes No
2 Design and document issuance schedule Yes No
3 Lists of electrical loads in normal, essential, and emergency categories Yes No
4 Basic one-line diagrams YesY
No
5 Typical logic and/or functional diagrams Yes No
6 Data list containing the parameters of the main electrical equipment andcircuits of the installation Yes No
7 Load flow study report Yes No
8 Short-circuit study report Yes No
9 Report on studies of voltage drop during startup of motors Yes No
10 Electromechanical stability evaluation report for the system Yes No
11 Electromagnetic transient evaluation report Yes No
12 Real-time modeling and simulation of transient and steady states of industrialelectrical power systems Yes No
13 Report on studies of harmonics introduced into the electrical system Yes No
14 Report on preliminary assessment of the protections of the electrical system Yes No
15 Drawings and documents of preliminary physical installations of electricalsystems and equipment Yes No
16 Updating of preliminary area classification studies Yes No
17 Data Sheets of the main electrical equipment Yes No
18 Technical engineering specifications of equipment and systems Yes No
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX C - SHEET 05/09.
Nº REV. SHEET of
TITLE: LIST OF APPLICABLE DESIGN DOCUMENTS TO BE
PREPARED BY DESIGNER
4 - DOCUMENTS TO BE PREPARED IN DETAILED DESIGN
Applicable design documents to be prepared by designer
(For details of each document, see the respective applicable sections in PETROBRAS N-2040)
Mandatory application in
design
1 Design and document issuance schedule Yes No
2 Data list containing the parameters of the main electrical equipment andcircuits of the installation Yes No
3 Laod flow study report Yes No
4 Short-circuit study report Yes No
5 Protection coordination and selectivity Yes No
6 Report on studies on voltage drop during startup of motors Yes No
7 Report on evaluation of the electromechanical stability of the system Yes No
8 Electromagnetic transient evaluation report Yes No
9 Real-time modeling and simulation of transient and steady states of industrialelectrical power systems Yes No
10 Report on studies of harmonics introduced into the electrical system Yes No
11 Arc flash assessment report Yes No
12 List of design documents Yes No
13 List of electrical loads in normal, essential, and emergency categories Yes No
14 List of cables and/or circuits Yes No
15 List of conduits and/or trays Yes No
16 List of interconnection of terminals and circuits Yes No
17 List of tagged electrical equipment Yes No
18 List of materials Yes No
19 List of input/output points for electrical digital automation systems and IEDs Yes No
20 List of process data for area classification studies Yes No
21 List of configuration parameters for digital electrical equipment and IEDs Yes No
22 Descriptive memoranda and/or calculation sheets for sizing of equipment Yes No
23 Descriptive memoranda and/or calculation sheets for sizing of uninterrupted power supply systems Yes No
24 Descriptive memoranda and/or calculation sheets for normal, essential, and emergency power circuit distribution system Yes No
25 Descriptive memoranda and/or calculation sheets for cable pulling Yes No
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX C - SHEET 06/09.
No. REV. SHEET of
TITLE: LIST OF APPLICABLE DESIGN DOCUMENTS TO BE PREPARED
BY DESIGNER
4 - DOCUMENTS TO BE PREPARED IN DETAILED DESIGN
Applicable design documents to be prepared by designer
(For details of each document, see the respective applicable sections in PETROBRAS N-2040)
Mandatory application in
design
26 Descriptive memoranda and/or calculation sheets for grounding system Yes No
27 Descriptive memoranda and/or calculation sheets for lighting system Yes No
28 Descriptive memoranda and/or calculation sheets for automation Yes No
29 Descriptive memoranda and/or calculation sheets for electrical protection andselectivity system Yes No
30 Descriptive memoranda and/or calculation sheets for electrical and processsafety interlocking systems Yes No
31 Descriptive memoranda and/or calculation sheets for signaling and alarmsystem Yes No
32 Descriptive memoranda and/or calculation sheets for lightning protectionsystem Yes No
33 Descriptive memoranda and/or calculation sheets for short-circuit study Yes No
34 Descriptive memoranda and/or calculation sheets for load flow studies Yes No
35 Descriptive memoranda and/or calculation sheets for studies on voltage dropduring startup of large-sized machinery and electric motors Yes No
36 Descriptive memoranda and/or calculation sheets for smoke or gas detectionand alarm system Yes No
37 Descriptive memoranda and/or calculation sheets for types of protection ofequipment to be installed in classified areas Yes No
38 Descriptive memoranda and/or calculation sheets for stability studies Yes No
39 Descriptive memoranda and/or calculation sheets for electrical panel arc flashstudies Yes No
40 Descriptive memoranda and/or calculation sheets for industrial electrical heat tracing Yes No
41 Descriptive memoranda and/or calculation sheets for electromagnetic transientstudies Yes No
42 Descriptive memoranda for construction, assembly, commissioning and fieldtesting services Yes No
43 Drawings of one-line diagrams Yes No
44 Drawings of multi-wire diagrams Yes No
45 Typical functional diagrams of detailed design Yes No
46 Drawings of logic or digital equipment programming diagrams Yes No
47 Drawings of electrical equipment interconnection diagrams Yes No
48 Drawings and diagrams of interconnection wiring of electrical panel devices Yes No
49 Drawings and diagrams of interconnection blocks of main equipment and of the electrical system Yes No
50 Drawings of plans and sections of equipment layouts Yes No
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX C - SHEET 07/09.
No. REV. SHEET of
TITLE: LIST OF APPLICABLE DESIGN DOCUMENTS TO BE PREPARED
BY DESIGNER 4 - DOCUMENTS TO BE PREPARED IN DETAILED DESIGN
Applicable design documents to be prepared by designer
(For details of each document, see the respective applicable sections in PETROBRAS N-2040)
Mandatory application in
design
51 Drawings of plans and sections of exposed structures of equipment in outdoorsubstations Yes No
52 Drawings of plans and sections of electrical equipment bases Yes No
53 Drawings of plans and sections of classified areas Yes No
54 Drawings of plans and sections and of diagrams of loads and weights onstructures Yes No
55 Drawings of plans and sections and of diagrams of the main electrical network Yes No
56 Drawings of plans and sections and of diagrams of the underground electrical network Yes No
57 Drawings of plans and sections of the electrical network in cable ladders Yes No
58 Drawings of plans and sections and of the arrangement of cables in underground manholes Yes No
59 Drawings of plans and sections and of diagrams of exposed pull points Yes No
60 Drawings of plans and sections and of diagrams of the isolated or semi-isolated overhead electrical network (spacer cable) Yes No
61 Drawings of plans and sections and of diagrams of exposed installations Yes No
62 Drawings of plans and sections and of diagrams of electrical buildinginstallations Yes No
63 Drawings of diagrams showing distribution of lighting circuit loads Yes No
64 Drawings of plans and sections and of diagrams of normal, essential, and emergency lighting circuit distribution Yes No
65 Drawings of plans and sections and of diagrams of distribution of industrial electrical heat tracing circuits Yes No
66 Drawings of plans and sections and of diagrams of lightning protectionsystems Yes No
67 Drawings of plans and sections and of diagrams of exposed grounding system Yes No
68 Drawings of plans and sections and of diagrams of underground groundingsystem Yes No
69 Drawings of plans and sections and of diagrams of specific equipmentassembly details Yes No
70 Drawings of plans and sections and of diagrams showing typical electrical power assembly details Yes No
71 Drawings of plans and sections and of diagrams showing typical electrical control assembly details Yes No
72 Drawings of plans and sections and of diagrams showing typical electrical lighting assembly details Yes No
73 Drawings of plans and sections and of diagrams showing typical electrical grounding assembly details Yes No
74 Drawings of plans and sections and of diagrams showing typical electrical lightning protection assembly details Yes No
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX C - SHEET 08/09.
Nº REV. SHEET of
TITLE: LIST OF APPLICABLE DESIGN DOCUMENTS TO BE
PREPARED BY DESIGNER
4 - DOCUMENTS TO BE PREPARED IN DETAILED DESIGN
Applicable design documents to be prepared by designer
(For details of each document, see the respective applicable sections in PETROBRAS N-2040)
Mandatory application in
design
75 Drawings of plans and sections and of diagrams showing typical electricalsupport assembly details Yes No
76 Technical specifications for the purchase of equipment and materials Yes No
77 Data Sheets for the purchase of electrical equipment Yes No
78 Material requisitions Yes No
79 Technical reports Yes No
80 Documentation prepared and issued by manufacturers: manufacturingschedules Yes No
81 Documentation prepared and issued by manufacturers: lists of equipmentdocuments Yes No
82 Documentation prepared and issued by manufacturers: dimensional drawings of equipment Yes No
83 Documentation prepared and issued by manufacturers: Data Sheets Yes No
84 Documentation prepared and issued by manufacturers: lists of materials and components Yes No
85 Documentation prepared and issued by manufacturers : routine, type, and special test reports Yes No
86 Documentation prepared and issued by manufacturers: conformity certificates Yes No
87 Documentation prepared and issued by manufacturers: list of spare parts Yes No
88 Documentation prepared and issued by manufacturers: inspection and test plan Yes No
89 Documentation prepared and issued by manufacturers: factory acceptance test reports Yes No
90 Documentation prepared and issued by manufacturers: field acceptance test reports Yes No
91 Documentation prepared and issued by manufacturers: equipment assembly manuals Yes No
92 Documentation prepared and issued by manufacturers: equipment commissioning manuals Yes No
93 Documentation prepared and issued by manufacturers: equipment operation manuals Yes No
94 Documentation prepared and issued by manufacturers: equipment maintenance manuals Yes No
95 Documentation prepared and issued by manufacturers: installation, assembly, operation, and maintenance training schedule. Yes No
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PETROBRAS PROPERTY AND MAY NOT BE USED FOR PURPOSES OTHER THAN THOSE SPECIFICALLY INDICATED HEREIN.
THIS FORM IS PART OF PETROBRAS N-2040 REV. D ANNEX C - SHEET 09/09.
NOTES 1 - THIS LIST OF ELECTRIC LOADS SHALL BE USED AS PRESCRIBED IN
THIS STANDARD. 2 - DESIGNER T SHALL REVISE THIS LIST OF ELECTRIC LOADS WHENEVER
NEW DATA COME UP OR OLD DATA ARE MODIFIED. 3 - CANCELED ELECTRIC LOADS SHALL BE KEPT IN HATCHED LISTN OF
ELECTRIC LOADS INDICATING IN REMARKS COLUMN THE FOLLOWIN TEXT: “CANCELLED IN REVISION XX”.
4 - ELECTRIC DEMAND CORRESPONDS TO NORMAL BHP OF ACTIVATED MACHINE DIVIDED BY CORRESPONDING MOTOR FULL LOAD OUTPUT.
SYMBOLS:
1 – ALL FIELDS HAVE IN THEIR RIGHT END A VERTICAL STRIPE THAT SHALL BE COMPLETED ACCORDING TO THE FOLLOWING CONVENTION:
ESTIMATED DATA MEASURED DATA
2 – SHADED FIELDS ALWAYS INDICATE THE LATEST REVISION
EXAMPLE: INDICATES ESTIMATED DATA LATEST REVISION
INDICATES MEASURED DATA 1 2 3 4 5
MB 122001 A NAPHTHA FEEDING 100 F 3 500 MB 122006 A HEAVY NAPHTHA TRANSF. 550 8 1 780
REV. DESCRIPTION DATE EXEC. CHECK APPROV.
THE INFORMATION OF THIS DOCUMENT IS PETROBRAS PROPERTY , ITS UTILIZATION OFF ITS PURPOSE BEING FORBIDDEN FORM PERTAINING TO PETROBRAS N-2040 - REV. D – ANNEX D - SHEET 01/02.
CLIENT:
PROGRAM:
AREA:
TITLE:
LIST OF ELECTRIC LOADS DESIGN EXEC. CHECKED.
APPROVAL
DATE SHEET of
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
EQUIPMENT NUMBER SERVICE
POWER IN LOAD SHAFT
(Kw) POWER FACTOR
ELE
CTR
IC D
EM
AN
D
(Kw
)
MA
IN (P
) O
R
BA
CK
UP
(R)
VO
LTA
GE
(VO
LTS
) N
UM
BE
R O
F P
HA
SE
S
NO
RM
AL
MA
XIM
UM
NOTE 4
RA
TED
VO
LTA
GE
kW
(MO
TOR
S)
kVa
(OTH
ER
S)
TEM
PE
RA
TUR
E R
ISE
(°C
) O
R IN
SU
L. C
LAS
S.
R.P
.M.
4/4
LOA
D
3/4
LOA
D
2/4
LOA
D
EM
PTY
IN
STA
RTI
NG
Nº
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
OUTPUT INERTIA MOMENT (kg.m²) CURRENT (AMPERES) HEATING RESISTOR CONDUIT DIAMETER (INCHES) CABLE RATED SECTION (mm²)
4/4
LOA
D
3/4
LOA
D
2/4
LOA
D
OF
MO
TOR
OF
DR
IVE
N
LOA
D
AC
CE
LER
ATI
ON
TIM
ER
(S
EC
.) (1
00 %
VH)
MA
XIM
UM
ALL
OW
AB
LE
TIM
E W
/LO
CK
ED
RO
TOR
(1
00 %
VH)
STA
RTU
P C
ON
JUG
ATE
(%
T N)
,MA
XIM
UM
CO
NJU
GA
TE
(% T
N)
RA
TED
AT
FULL
LO
AD
WIT
H L
OC
KE
D
O R
OTO
R
(100
% V
H)
OF
MA
GN
ETI
ZATI
ON
PO
WE
R
(WA
TTS
)
VO
LTA
GE
(V
OLT
S)
FOR
CO
NTR
OL
FEED
ING
FEED
ING
ON
LY
CO
NTR
OL
ON
LY
FEED
ER
CO
NTR
OL
RE
SIS
TOR
REMARKS
Nº REV.
AREA: SHEET of
TITLE:
LISTS OF ELECTRIC LOADS FORM PERTAINING TO PETROBRAS N-2062 REV. D ANNEX D - SHEET 02/02 THE INFORMATION OF THIS DOCUMENT IS PETROBRAS PROPERTY, UTILIZATION OF ITS PURPOSE BEING FORBIDDEN
N-2040 REV. D ENGLISH 10 / 2008
7
PETROBRAS N-898 - Graphical Symbols and Designations for Electric Drawings; PETROBRAS N-1521 - Identification of Industrial Equipment; PETROBRAS N-1600 - Construction, Assembly and Pre-Commissioning of Electrical Networks; PETROBRAS N-1614 - Construction, Mounting and Conditioning of Electrical Equipment; PETROBRAS N-1674 - Design of Layout for Petroleum Refinery; PETROBRAS N-1710 - Coding of Technical Engineering Documents; PETROBRAS N-1711 - Detalhes de Caixa de Enfiação (“Manholes - EMH”) para Uso em Rede Elétrica Subterrânea; PETROBRAS N-1857 - Electrical Resistance Trace Heating System for Industrial Applications - Design, Installation, Inspection, and Maintenance Procedures; PETROBRAS N-1913 - Material Requisition Preparation; PETROBRAS N-1973 - Material Requisition for Electrical Equipment; PETROBRAS N-1996 - Design of Electrical Network in Concrete Envelopes and with Cables Directly the Ground; PETROBRAS N-1997 - Electrical Networks in Cable Tray Systems - Design, Installation, and Inspection; PETROBRAS N-1998 - Overhead Power Grid Project; PETROBRAS N-2006 - Lighting Systems Design; PETROBRAS N-2039 - Substation Design; PETROBRAS N-2062 - List of Electric Loads; PETROBRAS N-2064 - Issuance and Revision of Design Documents; PETROBRAS N-2154 - Classificação de Áreas para Instalações Elétricas em Regiões de Perfuração e Produção; PETROBRAS N-2155 - Data List for Area Classification; PETROBRAS N-2166 - Classification of Sites for Electrical Installations in Petroleum Refineries; PETROBRAS N-2167 - Classification of Areas for Electrical Installations at Petroleum, Gas and Derivate Transportation Facilities; PETROBRAS N-2222 - Design of Safety Grounding for Offshore Units; PETROBRAS N-2641 - Electrical Resistance Trace Heating System for Industrial Applications; PETROBRAS N-2706 - Presentation of Area Classification Plan; PETROBRAS N-2830 - Safety Criteria for Environments and Services in Electric Panels and Equipment with Electric Arc Potential; PETROBRAS N-2850 - Floor Gratings, Tray Systems, and Guardrails Made of Composite Material;
N-2040 REV. D ENGLISH 10 / 2008
32
7.1 Conceptual, Basic, and Front-End Engineering Design 7.1.1 Lists of Electrical Loads 7.1.1.1 Standardized sheets according to the requirements indicated in PETROBRAS N-2062, issued by panel, process or substation, based on the basic process design. 7.1.1.2 Besides the loads of the normal power supply system, the loads to be fed by the essential and emergency power supply systems shall be described, in case those systems are necessary. Examples of these essential and emergency power supply systems include: lighting systems, substation pressurization systems, control rooms and other rooms, storage battery chargers, UPS, industrial electric heat tracing systems for equipment and piping, supervisory control stations, telecommunication systems, data processing systems. 7.1.1.3 The lists of electrical loads shall be revised by the detailed designer as its work is carried out, in accordance with PETROBRAS N-2064. According to the size of the detailed design, it may be necessary to prepare and revise these load lists more than once. 7.1.1.4 The lists of electrical loads shall include the loads indicated by the various disciplines, including process, automation, instrumentation, telecommunications, data processing and industrial safety. 7.1.2 Technical and Economic Feasibility Studies of the Electrical System These studies shall include the monetary indexes or parameters and return rates justifying the selection of the philosophies adopted for the various electrical equipment and systems. Examples of these technical and economic feasibility studies are shown below:
a) configuration of electrical system; b) redundancies; c) driving loads with frequency converters; d) driving loads with soft starters; e) induction and synchronous motors; f) digital protection and automation systems of the electrical system; g) architectures and redundancies of deterministic data communication networks and
Ethernet; h) systems for heating equipment and pipe by means of resistance or inductive or steam
tracing. These studies shall be presented whenever necessary and, in the case of a design with a new philosophy, they shall be applied both in new facilities and in refurbishment or expansion designs of existing facilities. 7.1.3 Short-Circuit Calculation Sheets These sheets shall present the parameters needed for calculations, the impedance diagram for each operating situation of the system leading to maximum and minimum short-circuit conditions at the points to be considered, the development of the calculations per se and the summary of results.
N-2040 REV. D ENGLISH 10 / 2008
38
7.2.3.2 Besides the loads of the normal power supply system, the loads to be fed by the essential and emergency power supply systems shall also be described in case such systems are necessary. Examples of these essential and emergency power supply systems include lighting systems, substation pressurization systems, control rooms, and other rooms, storage battery chargers, UPS, industrial electric heat tracing systems for equipment and piping, monitoring and control stations, telecommunications systems, data processing systems. 7.2.3.3 The lists of electrical loads shall be revised by the detailed designer as the latter carries out its work, following PETROBRAS N-2064. According to the size of the detailed design, it may be necessary for the designer to prepare and revise those loads lists and other affected documents, drawings and diagrams more than once. 7.2.3.4 The lists of electrical loads shall be complemented so as to update the data relating to the loads listed in the basic design by the various disciplines, including process, automation, instrumentation, telecommunications, data processing, and industrial safety. 7.2.4 Lists of Cables and/or Circuits 7.2.4.1 The lists of cables and/or circuits shall contain, at least, the following information:
a) identification (TAG number) of cables, conduits and/or circuits; b) type of cable; c) length of runs and total length of circuit; d) quantity, formation, nominal cross-sectional area and length of cables per circuit; e) description of origin and destination of each run; f) indication of route of each run; g) identification of coil or code of material to be used; h) identification and description of the service or function of the circuit (such as main power
supply, auxiliary power supply, direct current circuits, control, command, signaling, automation, alarm, heating, winding temperature sensors, housings and bearings, digital circuits, analog signal circuits, data communication networks etc.);
i) rated voltage of circuit; j) revision field of list of cables per circuit; k) “remarks” field for inclusion of general notes about each circuit.
7.2.4.2 The lists of cables and/or circuits shall be issued per process unit fed by substation and lists of cables and circuits within the substation and, when necessary, a list for interconnections between different substations. 7.2.4.3 The design of electrical circuits on ships, platforms, and other fixed or mobile offshore units shall consider the applicable requirements set forth in IEC 61892-4, IEC 60092-352, IEC 60092-401, and in IMO MODU CODE. 7.2.5 Lists of Conduits and/or Cable Tray Systems 7.2.5.1 The lists of conduits and/or cable tray systems shall contain, at least, the following information:
a) identification (TAG number) of conduits and/or cable tray systems; b) type of conduit or cable tray; c) length of runs and total length of conduit or cable tray systems; d) description of origin and destination of conduit or cable tray systems run; e) indication of route of conduit or cable tray systems run; f) nominal diameter of conduit or dimensions of cable tray, channel-type tray or ladder.
N-2040 REV. D ENGLISH 10 / 2008
IR 1/1
INDEX OF REVISIONS
REV. A and B
There is no index of revisions.
REV. C
Affected Parts Description of Alteration
2 Revised
4.1.1 at 4.13 Revised
4.2 Revised
4.3.2 and 4.3.3 Revised
5.1.1 Revised and Renumbered
5.1.1.1 and 5.1.1.2 Included
5.1.2 at 5.1.7 Revised and Renumbered
5.1.7.1 at 5.1.7.3 Included
5.1.8 at 5.1.10 Revised and Renumbered
5.1.11 Excluded
5.2.2 and 5.2.3 Revised
5.2.4.1 and 5.2.4.2 Included
5.2.5 Revised and Renumbered
5.2.5.1 at 5.1.5.4 Included
5.2.6 and 5.2.7 Revised
5.2.7.1 at 5.2.7.13 Included
5.2.8 Revised
5.2.8.1 at 5.2.8.29 Included
5.2.9 at 5.2.12 Revised
5.2.12.1 at 5.2.12.3 Included
5.2.13 Revised
5.2.13.1 at 5.2.13.2 Included
5.2.17 Revised
_____________
N-2040 REV. D ENGLISH 10 / 2008
WORKING GROUP - WG-06-43
Members
Name Department Telephone Key Alexandre Antonio Cardoso da Silva AB-PQF/COMPERJ/ES/AEI 8186221 ED6B
Denniz Irmo Zorzal Rossi REPLAN/EN/PCM 8536292 CSJI
Eduardo Lenz Cesar AB-RE/ES/TAIE 8146531 CJN4
Epitácio Nascimento Filho UN-RNCE/ENGP/EMI 8343523 QNCL
Fabio Geraldo Carmélio REGAP/EN 8154747 CL31
Marcos Leonardo Ramos ENGENHARIA/SL/SEQUI/ATFCM 8193603 EOPI
Ricardo Camargo ENGENHARIA/SL/SEQUI/CI 8556731 CL47
Roberval Bulgarelli RPBC/EN 8544484 RBBS Rodrigo de Moraes Pereira da Rosa ENGENHARIA/IEEPT/EEPTM/EIP 8192826 CTLX
Silvio Russi do Nascimento REVAP/EN 8556433 RVEK
Technical Secretary Flavio Miceli ENGENHARIA/SL/NORTEC 8193078 ERQE
_____________
