Project No. 2018-002 · gray or ANSI 61 gray over a primer and rust ... switching mechanism. Automatic tripping of the circuit breaker shall be clearly ... Supply voltage shall be

Project No. 2018-002.00

ARBUCKLE ELEMENTARY SCHOOL MODULAR BUILDING RELOCATION ELECTRICAL REQUIREMENTS PIERCE JOINT USD SECTION 26 01 00-1

ELECTRICAL REQUIREMENTS

SECTION 26 01 00

PART 1 – GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the contract, including general and supplementary conditions apply to

this section. 1.2 INCLUDED

A. This section covers electrical work, complete. Work includes furnishing, installing, calibrating, adjusting, testing, documenting, and starting up equipment in accordance with these Specifications, the accompanying Plans, and the directions of the Engineer.

1.3 INTENT OF PLANS

A. Electrical plan drawings show only general locations of equipment, devices, and raceway unless specifically dimensioned. The Contractor is responsible for the proper routing of raceway, subject to the approval of the Engineer.

B. Make adjustments as necessary to wiring, conduit, disconnects, branch circuit protection, and other affected

material or equipment to accommodate actual equipment supplied for this project. 1.4 CODES, PERMITS, AND REGULATIONS

A. Do all work and install materials and equipment in accordance with the requirements of the California Electrical Code (CEC), applicable State and local laws and ordinances, and the power company.

B. Conflicts, if any, that may exist among the above items will be resolved at the discretion of the Engineer.

C. Wherever the requirements of the Specifications or Plans exceed those of the items above, the

requirements of the Specifications or Plans shall govern.

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1.5 SUBMITTALS

A. Refer to the Special Provisions for additional submittal guidelines. Before any material is fabricated or shipped, furnish to the Engineer full details, shop drawings, dimensions, catalog cuts, schematic (elementary) diagrams, and other descriptive matter as required to fully describe the equipment specified under the Section.

B. For service entrance equipment, meter base, and other related materials, obtain written approval of

submittals from the serving utility before submitting to the Engineer. 1.6 ELECTRICAL RESPONSIBILITIES

A. Furnish and install all raceways, conduit, disconnect switches, and conductors necessary for electrical power supply. Make all power supply terminations to motors, starters, disconnect switches, control transformers, and other mechanical devices.

PART 2 – PRODUCTS

A. Unless otherwise indicated, provide all first-quality new materials, free from any defects, and suitable for the intended use and the space provided. Provide materials approved by UL wherever standards have been established by that organization.

B. Furnish and install all incidental items not specifically shown or specified which are required by good practice to provide the complete systems specified herein.

C. Where two or more units of the same class of material or equipment are required, provide products of a single manufacturer. Component parts of materials or equipment need not be products of the same manufacturer.

2.1 STANDARD PRODUCTS

A. Unless otherwise indicated, provide materials and equipment which are products of manufacturers regularly engaged in the production of such materials and equipment. Provide the manufacturer's latest design that conforms to these Specifications.

2.2 EQUIPMENT FINISH

A. Unless otherwise indicated, finish for electrical equipment and enclosures shall be manufacturer's standard gray or ANSI 61 gray over a primer and rust inhibitor.

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2.3 OUTLET AND DEVICE BOXES

A. Sheet Steel: Comply with NEMA OS1 and UL 514A. 2.4 JUNCTION AND PULL BOXES

A. Outlet Boxes Used as Junction or Pull Box: As specified under Article OUTLET AND DEVICE BOXES. B. Large Weatherproof: NEMA 3R.

1. Box: Galvanized steel. 2. Cover: Screw with provisions for pad locking. 3. Embossed mounting holes on back of enclosure. 4. No gasketing.

C. Concrete Pull Box:

1. Box: Precast Concrete. 2. Extensions: Precast concrete, 12 inches deep, provide minimum of two per box. 3. Cover: Steel traffic cover, clearly and permanently label box ELECTRICAL, TELEPHONE, or

TELEMETRY, as applicable. 4. Size: Sized in accordance with CEC, but minimum size 17”H 30”W with depth as required or as

shown.

2.5 CONDUIT AND TUBING

A. Galvanized Rigid Steel Conduit (GRS): Meet requirements of ANSI C80.1 and UL 6.

B. Electric Metallic Tubing (EMT): Meet requirements of ANSI C80.3 and UL 797.

C. PVC Schedule 40 Conduit: Meet requirements of NEMA TC2 and UL 651.

D. Flexible Metal, Liquid-Tight Conduit:

1. UL 360 listed for 105°C insulated conductors. 2. Material: Galvanized steel, with an extruded PVC jacket.

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E. Raceway Warning Tape:

1. Heavy-gauge, yellow plastic tape of 6-inch minimum width for use in trenches containing electric circuits.

2. Utilize tape made of material resistant to corrosive soil. 3. Printed warning that an electric circuit is located below the tape.

2.6 FITTINGS

A. Galvanized Rigid Steel: Meet requirements of UL 514B and NEMA FB1.

B. Electric Metallic Tubing:

1. Meet requirements of UL 514B. 2. Type: (Compression). 3. Material: Steel.

C. PVC Conduit: Meet requirements of NEMA TC-3.

D. Flexible Metal, Liquid-Tight Conduit: Meets requirements of UL 514B and NEMA FB1.

2.7 CONDUCTORS

A. All conductors shown on the Plans shall be new unless otherwise indicated.

B. Conductor Type:

1. 120 VAC and 277 VAC lighting: Solid copper. 2. 120 VAC receptacle circuits: Solid copper. 3. All other circuits: Stranded copper. 4. Insulation: Type THHN/THWN-2, comply with UL 83. 5. Marking: Comply with wire and cable marking according to UL’s “Wire and Cable Marking Application

Guide.”

2.8 CONDUCTOR ACCESSORIES

A. Tape: General Purpose, Flame Retardant: 7-mil, vinyl plastic.

B. Cable Ties: Nylon, adjustable, and self-locking.

C. Heat Shrinkable Insulation: Thermally stabilized, crosslinked polyofin.

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2.9 SERVICE ENTRANCE EQUIPMENT

A. Provide a service entrance switchboard, underground pull section, remote meter base, and other materials as required by the electric utility, which will provide service to the facility, for installation of metering equipment and attachment of service conductors.

B. Ratings:

1. The assembly shall be rated to withstand mechanical forces exerted during short-circuit conditions when connected directly to a power source having available fault current as shown on the Plans.

C. Construction:

1. The entire assembly shall be front accessible and shall consist of utility pull section, main circuit breaker, utility metering, and distribution panel as shown on the Plans.

2. All metering shall be in accordance with utility requirements. 3. The service section shall include:

a. Main lugs mounted at the top of the section for overhead feed or for used with an underground pull section.

b. A metering and current transformer compartment with busing for utility bar type current transformers.

4. Provide underground pull sections as required with lug landing kits providing studs for incoming cables per utility company.

5. Distribution Panel:

a. Where shown on the drawings, provide a 120/208, VAC three-phase, four-wire distribution panel. Provide breakers as indicated on the Plans.

D. Bus:

1. All bus bars shall be tin-plated aluminum. Main horizontal bus bars shall be mounted with all three phases arranged in the same vertical plane. Bus sizing shall be based on NEMA standard temperature rise criteria of 65°C over a 40°C ambient (outside the enclosure).

2. Provide a full capacity neutral bus where a bus is indicated on the Plans. 3. A copper ground bus (minimum ¼- 2-inch), shall be furnished firmly secured to each vertical section

structure, and shall extend the entire length of the switchboard. 4. All hardware used on conductors shall be high-tensile strength and zinc-plated. All bus joints shall be

provided with conical spring-type washers.

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E. Main Protective Devices:

1. Protective device shall be a molded case circuit breaker with inverse time and instantaneous tripping characteristics.

2. Circuit breaker shall be operated by a toggle-type handle and shall have a quick-make, quick-break switching mechanism. Automatic tripping of the circuit breaker shall be clearly indicated by the handle position.

3. The circuit breaker shall be provided with the following features:

a. Provide an adjustable trip setting dial mounted on the front of the trip unit or interchangeable rating plug to establish the rating of the circuit breaker.

b. The following time-current curve adjustments shall be provided:

i. Long time setting. ii. Short time setting. iii. Instantaneous setting. iv. Ground fault.

Utility Metering: Where indicated on the Plans, furnish a barrier to separate the utility metering compartment complete with sealed door. Bus work shall include provisions for mounting utility company metering equipment. Provide service entrance label. Provide remote utility metering as shown on the Plans.

F. Enclosures:

1. Outdoor: NEMA 3R enclosure.

a. Outdoor enclosure shall be non-walk-in and meet applicable NEMA 3R requirements of UL. b. Enclosure shall have flat roof. c. Doors shall have provisions for padlocking. d. Ventilating openings shall be provided complete with replacement air filters. e. Provide space heaters thermostatically controlled for each structure with adequate wattage

to prevent the accumulation of moisture. f. Power for space heaters, lights and receptacles shall be obtained from a source as indicated on

the Plans. Supply voltage shall be 120 VAC.

G. Nameplates:

1. Engraved nameplates, mounted on the face of the assembly, shall be furnished for all main and feeder circuits as indicated on the Plans. Follow the equipment labeling example shown in Section 3.17 EQUIPMENT LABELING.

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H. Finish:

1. All exterior and interior steel surfaces of the switchboard shall be properly cleaned and provided with a rust-inhibiting phosphatized coating. Color and finish of the switchboard shall be ANSI 61 light gray.

PART 3 – EXECUTION

A. Perform work in a workmanlike manner by craftsmen skilled in the particular trade. Perform work in accordance with the Plans, Specifications, manufacturer's recommendations, and the best practice of the trade. Completed work shall present a neat and finished appearance.

B. Coordinate electrical work with the Owner and the work of other trades to avoid conflicts, errors, delays, and

unnecessary interference during construction. 3.1 PROTECTION DURING CONSTRUCTION

A. Following installation, protect materials, equipment, and insulation from corrosion, physical damage, and moisture. Cap conduit runs during construction with manufactured seals. Keep openings in boxes or equipment closed during construction.

3.2 MATERIAL AND EQUIPMENT INSTALLATION

A. Follow the manufacturer's installation recommendations unless otherwise indicated. Follow the Engineer's decision, wherever any conflict arises between the manufacturer's instructions, State or other codes and regulations, and these Contract Documents. Keep copy of the manufacturer's installation instructions available on the jobsite for review at all times.

B. Install freestanding equipment in accordance with the manufacturer's recommendations. Secure

freestanding equipment rigidly to floors or mounting pads with anchor bolts, expansion shields, or other approved means.

3.3 CUTTING AND PATCHING

A. Do not cut or notch any structural member or building surface without specific approval of the Engineer. Carefully carry out any cutting, channeling, chasing, or drilling of floors, walls partitions, ceilings, paving, or other surfaces required for the installation, support, or anchorage of conduit, raceways, or other electrical materials and equipment. Following such work, restore surfaces neatly to new condition using skilled craftsmen of the trades involved.

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3.4 CLEANING AND TOUCH-UP PAINTING

A. Keep the premises free from accumulation of waste material or rubbish. Upon completion of work, remove materials, scraps, and debris from the premises and from the interior and exterior of all devices and equipment. Refinish damaged surfaces to new condition using skilled craftsmen of the trades involved.

3.5 RACEWAY SYSTEM

A. Unless otherwise specified or indicated, wiring shall consist of insulated conductors installed in raceways of the types indicated:

B. Diameter: As shown on Plans. C. Exterior, Exposed: Galvanized rigid steel.

D. Interior, Exposed: Electric metallic tubing.

E. Interior, Concealed (Not Embedded in Concrete): Electric metallic tubing except as noted below:

F. Direct Earth Burial: PVC Schedule 40. G. For equipment where flexible connection is required to minimize vibration:

1. Flexible metal, liquid-tight conduit. 2. Length: 18-inch minimum, 60-inch maximum of sufficient length to allow movement or adjustment of

equipment.

H. Box Type (All Raceway Systems):

1. Exterior Locations: Sheet steel, NEMA 3R. 2. Buried Raceway: Concrete pullbox.

I. Install pull boxes where shown and where necessary to terminate, tap-off, or redirect multiple conduit runs. J. Install pull boxes where necessary in raceway system to facilitate conductor installation.

K. Install pull boxes in underground conduit runs with large changes in elevation to relieve hydraulic pressure in

the conduit.

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L. Install pull boxes in conduit runs at least every 150 feet or after the equivalent of three right-angle bends. M. Use outlet boxes as junction and pull boxes wherever possible and allowed by applicable codes. N. Install plumb and level. O. Support boxes independently of conduit by attachment to building structure or structural member. P. Install bar hangers in frame construction, or fasten boxes directly with wood screws on wood, bolts and

expansion shields on concrete or brick, toggle bolts on hollow masonry units, and machine screws or welded threaded studs on steelwork.

Q. Threaded studs driven in by powder charge and provided with lock washers and nuts are acceptable in lieu

of expansion shields. 3.6 RACEWAY INSTALLATION

A. Conduit and tubing sizes shown are based on the use of copper conductors. B. All installed work shall comply with National Electrical Installation Standards (NEIS). C. Crushed or deformed raceways not permitted. D. Maintain raceway entirely free of obstructions and moisture.

E. Immediately after installation, plug or cap raceway ends with watertight and dust-tight seals until time for

pulling in conductors. F. Group raceways installed in same area. G. Proximity to Heated Piping: Install raceways minimum 12 inches from parallel runs. H. Follow structural surface contours when installing exposed raceways. Avoid obstruction of passageways. I. Run exposed raceways parallel or perpendicular to walls, structural members, or intersections of vertical

planes. J. All metal conduit to be reamed, burrs removed, and cleaned before installation of conductors, wires, or

cables.

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K. Do not install raceways in concrete equipment pads, foundations, or beams. L. Install concealed, embedded, and buried raceways so that they emerge at right angles to surface and have

no curved portion exposed.

M. For empty conduits install a nylon pull cord to be used for future installations. 3.7 RACEWAY PENETRATIONS

A. Make at right angles, unless otherwise shown. B. Notching or penetration of structural members, including footings and beams, not permitted. C. Fire-Rated Walls, Floors, or Ceilings: Fire-stop openings around penetrations to maintain fire-resistance

rating. D. Apply single layer of wraparound duct band to all metallic conduit protruding through concrete floor slabs to

a point 2 inches above concrete surface. E. Entering Structures:

1. Heating, Ventilating, and Air Conditioning Equipment:

a. Penetrate equipment in area established by manufacturer.

3.8 RACEWAY SUPPORT

A. Support from structural members only, at intervals not exceeding CEC requirements, and in any case not exceeding 10 feet. Do not support from piping, pipe supports, or other raceways.

B. Wall brackets and associated hardware in contact with concrete or masonry shall be stainless steel. Provide

galvanized steel at all other locations. Strap hangers and ceiling trapeze including hardware, shall be galvanized steel.

C. Provide and attach wall brackets, strap hangers, or ceiling trapeze as follows:

1. Wood: Wood screws. 2. Hollow Masonry Units: Toggle bolts.

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3. Concrete or Brick: Expansion shields, or threaded studs driven in by powder charge, with lock washers and nuts.

4. Steelwork: Machine screws. D. Nails or wooden plugs inserted in concrete or masonry for attaching raceway not permitted. Do not weld

raceways or pipe straps to steel structures. Do not use wire in lieu of straps or hangers.

3.9 RACEWAY BENDS

A. Install concealed raceways with a minimum of bends in the shortest practical distance.

B. Make bends and offsets of longest practical radius.

C. Install with symmetrical bends or cast metal fittings.

D. Avoid field-made bends and offsets, but where necessary, make with acceptable hickey or bending machine. Do not heat metal raceways to facilitate bending.

E. Make bends in parallel or banked runs from same center or centerline with same radius so that bends are parallel.

F. Factory elbows may be installed in parallel or banked raceways if there is change in plane of run, and raceways are same size.

G. PVC Conduit: Provide factory-made elbows.

H. Flexible Conduit: Do not make bends that exceed allowable conductor bending radius of cable to be installed or that significantly restricts conduit flexibility.

3.10 PVC CONDUIT

A. Solvent Welding:

1. Provide manufacturer recommended solvent; apply to all joints. 2. Install such that joint is watertight.

B. Adapters:

1. PVC to Metallic Fittings: PVC terminal type. 2. PVC to Rigid Metal Conduit: PVC female adapter.

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C. Belled End Conduit: Bevel the unbelled end of the joint prior to joining. 3.11 TERMINATION AT ENCLOSURES

A. Cast Metal Enclosure: Provide manufacturer's pre-molded insulating sleeve inside metallic conduit terminating in threaded hubs.

B. Sheet Metal Boxes, Cabinets, and Enclosures:

1. Galvanized Rigid Steel Conduit:

a. Provide one lock nut each on inside and outside of enclosure. b. Install grounding bushing. c. Provide bonding jumper from grounding bushing to equipment ground bus or ground pad; if

neither ground bus nor pad exists, connect jumper to lag bolt attached to metal enclosure. d. Install insulated bushing on ends of conduit where grounding is not required. e. Provide insulated throat when conduit terminates in sheet metal boxes having threaded

hubs.

2. Electric Metallic Tubing: Provide gland compression, insulated connectors. 3. Flexible Metal Conduit: Provide two screw type, insulated, malleable iron connectors.

3.12 UNDERGROUND RACEWAYS

A. Cover: Maintain minimum 2-foot cover above conduit, unless otherwise shown.

B. Make routing changes as necessary to avoid obstructions or conflicts.

C. Installation with other piping systems:

1. Crossing and parallel runs: Maintain minimum 12-inch separation unless otherwise indicated. 2. Installation over valves or couplings not permitted.

3.13 CONDUCTORS

A. Do not splice incoming service conductors and branch power distribution conductors No. 6 AWG and larger unless specifically indicated or approved by ENGINEER.

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B. Connections and Terminations:

1. Install wire nuts only on solid conductors. 2. Install nylon self-insulated crimp connectors and terminators for circuit conductors No. 6 AWG and

smaller. 3. Install uninsulated crimp connectors and terminators for circuit conductors No. 4 AWG through No.

2/0 AWG. 4. Install uninsulated, bolted, two-way connectors and terminators for circuit conductors No. 4/0 AWG

and larger. 5. Tape insulate all uninsulated connections. 6. Place no more than one conductor in any single-barrel pressure connection. 7. Install crimp connectors with tools approved by connector manufacturer. 8. Compression Lugs:

a. Attach with a tool specifically designed for purpose. b. Tool shall provide complete, controlled crimp and shall not release until crimp is complete. c. Do not use plier type crimpers.

C. Do not use soldered mechanical joints. D. Splices and Terminations:

1. Indoors: Use general purpose, flame retardant tape. 2. Outdoors: Use flame retardant, cold- and weather-resistant tape.

E. Cabinets and Panels:

1. Remove surplus wire, bridle and secure. 2. Where conductors pass through openings or over edges in sheet metal, remove burrs chamfer

edges, and install bushings and protective strips of insulating material to protect the conductors.

3.14 GROUNDING

A. Unless otherwise indicated, ground all exposed noncurrent-carrying metallic parts of electrical equipment, raceway systems, and the neutral of all wiring systems in accordance with the CEC, State, and other applicable laws and regulations.

B. Where ground rods are indicated or used, they shall be copper clad, not less than ¾-inch in diameter, 10

feet long, driven full length into the earth.

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C. Make ground connections by brazing, thermite welding, or with approved pressure terminals or mechanical grounding devices, except inaccessible connections shall be made by thermite welding.

D. The point of contact of each thermite weld shall be wire brushed or filed to a bare metal surface. Thermite welding cartridges and molds shall be used in accordance with the manufacturer's recommendations. After the welds have been made and cooled, slag shall be brushed from the welded area and the joint thoroughly cleaned. Use materials made by Burndy, Erico (Cadweld), or equal.

3.15 EQUIPMENT LABELING

A. Equipment labeling (for all project types) shall follow the examples shown below (for generator/ATS, transformer, panelboards, disconnects, lighting control panels, etc.):

PANEL A2 FED FROM PNL B1

400A, 120/208V, 3Ø, 42KAIC

DISCONNECT B1 FED FROM PNL M1 60A/15F, 208V/3Ø

TRANSFORMER T1

FED FROM PANEL A2 480V: 120/208V, 3Ø

1. Labels shall be melamine, flexi-brass, or equal material, 1.5” H x 3” L, with 3/8” H, Times New Roman

lettering.

3.16 TESTING, GENERAL

A. Testing, test plans, and test reports shall be provided by the Contractor as specified herein. The Contractor shall provide labor, instruments, and other material to complete the test.

3.17 OPERATIONAL READINESS TEST (ORT)

A. The entire installed electrical system shall be certified (inspected, tested, and documented) that it is ready for operation. The objective of this test is to demonstrate that the electrical system is complete and ready for use.

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This test shall consist, as a minimum of:

1. Insulation Resistance Test:

a. Perform insulation resistance test on each conductor No. 6 and larger with respect to ground. Applied potential to be 1,000 VDC for one minute.

b. Record test values and submit to the Engineer. Insulation resistance to be 50 megohm minimum.

c. Measure insulation resistance of complete circuits with the circuit breakers open. d. Notify the Engineer one week prior to the insulation test.

2. Grounding System:

a. Verify ground system is in compliance with Plans and Specifications. b. Perform fall-of-potential test or alternative in accordance with IEEE Standard 81-1991 on the

main grounding electrode or system. c. Perform point-to-point tests to determine the resistance between the main grounding system

and all major electrical equipment frames. d. The resistance between the main grounding electrode and ground should be no greater than

5 ohms. Investigate point-to-point resistance values which exceed 0.5 ohms.

3. Demonstration:

a. Demonstrate proper circuiting. b. Demonstrate proper panel relabeling.

B. Forms: Example ORT forms are provided in the supplement at the end of this section.

3.18 SUPPLEMENTS

A. Supplements listed below are part of this specification.

1. No. 1 — Example ORT forms.

SUPPLEMENT NO. 1

EXAMPLE ORT FORMS

PACE ENGINEERING OPERATION READINESS TEST (ORT) - GROUND RESISTANCE TEST

GROUND RESISTANCE TEST REPORT

Project: Location: Date:

Tested By:

Test Method: Two Point Test Equipment Used:

Fall of Potential

GROUND DESIGNATION OHMS GROUND DESIGNATION OHMS GROUND DESIGNATION OHMS GROUND DESIGNATION OHMS

NOTES:

M:\MASTER DOCUMENTS\SPECS CSI\2004 ELECTRICAL.DOC

PACE ENGINEERING OPERATIONAL READINESS TEST (ORT) - INSULATION RESISTANCE TEST

INSULATION RESISTANCE TEST REPORT

Project: Location: Date:

Tested By:

PNL Identification: Test Equipment Used:

T E S T D A T A

INSULATION RESISTANCE IN MEGOHMS

CIRCUIT DESIGNATION A-GND B-GND C-GND A-B A-C B-C TEST VOLTAGE DURATION

NOTES:

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ARBUCKLE ELEMENTARY SCHOOL MODULAR BUILDING RELOCATION

GROUNDING AND BONDING FOR COMMUNICATIONS SYSTEMS

PIERCE JOINT USD SECTION 27 05 26-1


SECTION 27 05 26

PART 1 - GENERAL


A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Grounding conductors. 2. Grounding connectors. 3. Grounding busbars. 4. Grounding rods.

1.3 DEFINITIONS

A. BCT: Bonding conductor for telecommunications.

B. TGB: Telecommunications grounding busbar.

C. TMGB: Telecommunications main grounding busbar.

D. Service Provider: The operator of a service that provides telecommunications transmission delivered over access provider facilities.

1.4 ACTION SUBMITTALS

A. Product Data: For each type of product.

1.5 INFORMATIONAL SUBMITTALS

A. Qualification Data: For Installer, installation supervisor, and field inspector.

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1.6 QUALITY ASSURANCE

A. Installer Qualifications: Cabling Installer must have personnel RCDD certified staff.

1. Installation Supervision: Installation shall be under the direct supervision of ITS Technician, who shall be present at all times when Work of this Section is performed at Project site.

2. Field Inspector: Currently registered as a designer RCDD to perform the on-site inspection.

PART 2 - PRODUCTS

2.1 SYSTEM DESCRIPTION

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

B. Comply with UL 467 for grounding and bonding materials and equipment.

C. Comply with TIA-607-B.

2.2 CONDUCTORS

A. Comply with UL 486A-486B.

B. Insulated Conductors: Stranded copper wire, green or green with yellow stripe insulation, insulated for 600 V, and complying with UL 83.

1. Ground wire for custom-length equipment ground jumpers shall be No. 6 AWG, 19-strand, UL-listed, Type THHN wire.

2. Cable Tray Equipment Grounding Wire: No. 6 AWG.

C. Bare Copper Conductors:

1. Solid Conductors: ASTM B 3. 2. Stranded Conductors: ASTM B 8. 3. Bonding Cable: 28 kcmils, 14 strands of No. 17 AWG conductor, and 1/4 inch in diameter. 4. Bonding Conductor: No. 4 or No. 6 AWG, stranded conductor. 5. Bonding Jumper: Tinned-copper tape, braided conductors terminated with two-hole copper ferrules;

1-5/8 inches wide and 1/16 inch thick.

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2.3 CONNECTORS

A. Irreversible connectors listed for the purpose. Listed by an NRTL as complying with NFPA 70 for specific types, sizes, and combinations of conductors and other items connected. Comply with UL 486A-486B.

B. Busbar Connectors: Cast silicon bronze, solderless compression-type, mechanical connector; with a long barrel and two holes spaced on 5/8- or 1-inch centers for a two-bolt connection to the busbar.

2.4 GROUNDING BUSBARS

A. TMGB: Predrilled, wall-mounted, rectangular bars of hard-drawn solid copper, 1/4 by 4 inches in cross section, length as indicated on Drawings. The busbar shall be NRTL listed for use as TMGB and shall comply with TIA-607-B.

1. Predrilling shall be with holes for use with lugs specified in this Section. 2. Mounting Hardware: Stand-off brackets that provide a 4-inch clearance to access the rear of the

busbar. Brackets and bolts shall be stainless steel. 3. Stand-off insulators for mounting shall be Lexan or PVC. Comply with UL 891 for use in 600-V

switchboards, impulse tested at 5000 V.

B. TGB: Predrilled rectangular bars of hard-drawn solid copper, in cross section, length as indicated on Drawings. The busbar shall be for wall mounting, shall be NRTL listed as complying with UL 467, and shall comply with TIA-607-B.

1. Predrilling shall be with holes for use with lugs specified in this Section. 2. Mounting Hardware: Stand-off brackets that provide at least a 2-inch clearance to access the rear

of the busbar. Brackets and bolts shall be stainless steel. 3. Stand-off insulators for mounting shall be Lexan or PVC. Comply with UL 891 for use in 600-V

switchboards, impulse tested at 5000 V.

C. Rack and Cabinet Grounding Busbars: Rectangular bars of hard-drawn solid copper, accepting conductors ranging from No. 14 to No. 2/0 AWG, NRTL listed as complying with UL 467, and complying with TIA-607-B. Predrilling shall be with holes for use with lugs specified in this Section.

1. Cabinet-Mounted Busbar: Terminal block, with stainless-steel or copper-plated hardware for attachment to the cabinet.

2. Rack-Mounted Horizontal Busbar: Designed for mounting in 19- or 23-inch equipment racks. Include a copper splice bar for transitioning to an adjoining rack, and stainless-steel or copper-plated hardware for attachment to the rack.

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2.5 GROUND RODS

A. Ground Rods: Copper-clad steel; 3/4 inch by 10 feet in diameter.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine the ac grounding electrode system and equipment grounding for compliance with requirements for maximum ground-resistance level and other conditions affecting performance of grounding and bonding of the electrical system.

B. Inspect the test results of the ac grounding system measured at the point of BCT connection.

C. Prepare written report, endorsed by Installer, listing conditions detrimental to performance of the Work.

D. Proceed with connection of the BCT only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Bonding shall include the ac utility power service entrance, the communications cable entrance, and the grounding electrode system. The bonding of these elements shall form a loop so that each element is connected to at least two others.

B. Comply with NECA 1.

C. Comply with TIA-607-B.

3.3 APPLICATION

A. Conductors: Install solid conductor for No. 8 AWG and smaller and stranded conductors for No. 6 AWG and larger unless otherwise indicated.

1. The bonding conductors between the TGB and structural steel of steel-frame buildings shall not be smaller than No. 6 AWG.

2. The bonding conductors between the TMGB and structural steel of steel-frame buildings shall not be smaller than No. 6 AWG.

B. Underground Grounding Conductors: Install bare tinned-copper conductor, No. 2 AWG minimum.

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C. Conductor Terminations and Connections:

1. Pipe and Equipment Grounding Conductor Terminations: Bolted connectors. 2. Underground Connections: Welded connectors except at test wells and as otherwise indicated. 3. Connections to Ground Rods at Test Wells: Bolted connectors.

D. Conductor Support:

1. Secure grounding and bonding conductors at intervals of not less than 36 inches.

E. Grounding and Bonding Conductors:

1. Install in the straightest and shortest route between the origination and termination point, and no longer than required. The bend radius shall not be smaller than eight times the diameter of the conductor. No one bend may exceed 90 degrees.

2. Install without splices. 3. Support at not more than 36-inch intervals. 4. Install grounding and bonding conductors in 3/4-inch PVC conduit until conduit enters a

telecommunications room. The grounding and bonding conductor pathway through a plenum shall be in EMT. Conductors shall not be installed in EMT unless otherwise indicated.

a. If a grounding and bonding conductor is installed in ferrous metallic conduit, bond the conductor to the conduit using a grounding bushing that complies with requirements in Section 270528 "Pathways for Communications Systems," and bond both ends of the conduit to a TGB.

3.4 GROUNDING ELECTRODE SYSTEM

A. The BCT between the TMGB and the ac service equipment ground shall not be smaller than No. 1/0 AWG.

3.5 GROUNDING BUSBARS

A. Indicate locations of grounding busbars on Drawings. Install busbars horizontally, on insulated spacers 2 inches minimum from wall, 12 inches above finished floor unless otherwise indicated.

B. Where indicated on both sides of doorways, route bus up to top of door frame, across top of doorway, and down; connect to horizontal bus.

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3.6 CONNECTIONS

A. Bond metallic equipment in a telecommunications equipment room to the grounding busbar in that room, using equipment grounding conductors not smaller than No. 6 AWG.

B. Stacking of conductors under a single bolt is not permitted when connecting to busbars.

C. Assemble the wire connector to the conductor, complying with manufacturer's written instructions and as follows:

1. Use crimping tool and the die specific to the connector. 2. Pretwist the conductor. 3. Apply an antioxidant compound to all bolted and compression connections.

D. Primary Protector: Bond to the TMGB with insulated bonding conductor.

E. Interconnections: Interconnect all TGBs with the TMGB with the telecommunications backbone conductor. If more than one TMGB is installed, interconnect TMGBs using the grounding equalizer conductor. The telecommunications backbone conductor and grounding equalizer conductor size shall not be less than 2 kcmils/linear foot of conductor length, up to a maximum size of No. 3/0 AWG unless otherwise indicated.

F. Telecommunications Enclosures and Equipment Racks: Bond metallic components of enclosures to the telecommunications bonding and grounding system. Install vertically mounted rack grounding busbar unless the enclosure and rack are manufactured with the busbar. Bond the equipment grounding busbar to the TGB No. 2 AWG bonding conductors.

G. Electrical Power Panelboards: Where an electrical panelboard for telecommunications equipment is located in the same room or space, bond each TGB to the ground bar of the panelboard.

H. Shielded Cable: Bond the shield of shielded cable to the TGB in communications rooms and spaces. Comply with TIA-568-C.1 and TIA-568-C.2 when grounding shielded balanced twisted-pair cables.

I. Rack- and Cabinet-Mounted Equipment: Bond powered equipment chassis to the cabinet or rack grounding bar. Power connection shall comply with NFPA 70; the equipment grounding conductor in the power cord of cord- and plug-connected equipment shall be considered as a supplement to bonding requirements in this Section.

3.7 GROUNDING UNDERGROUND DISTRIBUTION SYSTEM COMPONENTS

A. Duct-Bank Grounding Conductor: Bury 12 inches above duct bank when indicated as part of duct-bank installation.

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B. Comply with IEEE C2 grounding requirements.

C. Grounding Manholes and Handholes: Install a driven ground rod through manhole or handhole floor, close to wall, and set rod depth so 4 inches extends above finished floor. If necessary, install ground rod before manhole is placed and provide No. 1/0 AWG bare, tinned-copper conductor from ground rod into manhole through a waterproof sleeve in manhole wall. Protect ground rods passing through concrete floor with a double wrapping of pressure-sensitive insulating tape or heat-shrunk insulating sleeve from 2 inches above to 6 inches below concrete. Seal floor opening with waterproof, nonshrink grout.

D. Grounding Connections to Manhole Components: Bond exposed-metal parts such as inserts, cable racks, pulling irons, ladders, and cable shields within each manhole or handhole, to ground rod or grounding conductor. Make connections with No. 4 AWG minimum, bonding conductor. Train conductors level or plumb around corners and fasten to manhole walls. Connect grounding conductors to cable armor and cable shields according to written instructions by manufacturer of splicing and termination kits.

END OF SECTION 270526

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ARBUCKLE ELEMENTARY SCHOOL MODULAR BUILDING RELOCATION PATHWAYS FOR COMMUNICATION SYSTEMS PIERCE JOINT USD SECTION 27 05 28-1

PATHWAYS FOR COMMUNICATIONS SYSTEMS

SECTION 27 05 28

PART 1 - GENERAL



1.2 SUMMARY


1. Metal conduits and fittings. 2. Nonmetallic conduits and fittings. 3. Optical-fiber-cable pathways and fittings. 4. Hooks. 5. Boxes, enclosures, and cabinets.

1.3 DEFINITIONS

A. ARC: Aluminum rigid conduit.

B. GRC: Galvanized rigid conduit.

C. IMC: Intermediate metal conduit.

D. RTRC: Reinforced thermosetting resin conduit.


A. Product data for the following:

1. Surface pathways 2. Wireways and fittings. 3. Tele-power poles. 4. Boxes, enclosures, and cabinets.

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PART 2 - PRODUCTS

2.1 METAL CONDUITS AND FITTINGS

A. Description: Metal raceway of circular cross section with manufacturer-fabricated fittings.

B. General Requirements for Metal Conduits and Fittings:

1. Listed and labeled as defined in NFPA 70, by a nationally recognized testing laboratory, and marked for intended location and application.

2. Comply with TIA-569-D.

C. GRC: Comply with ANSI C80.1 and UL 6.

D. IMC: Comply with ANSI C80.6 and UL 1242.

E. EMT: Comply with ANSI C80.3 and UL 797.

F. Fittings for Metal Conduit: Comply with NEMA FB 1 and UL 514B.

1. Conduit Fittings for Hazardous (Classified) Locations: Comply with UL 1203 and NFPA 70. 2. Fittings for EMT:

a. Material: Steel. b. Type: Set screw or compression.

3. Expansion Fittings: PVC or steel to match conduit type, complying with UL-467, rated for environmental conditions where installed, and including flexible external bonding jumper.

4. Coating for Fittings for PVC-Coated Conduit: Minimum thickness of 0.040 inch, with overlapping sleeves protecting threaded joints.

G. Joint Compound for IMC, GRC, or ARC: Approved, as defined in NFPA 70, by authorities having jurisdiction for use in conduit assemblies, and compounded for use to lubricate and protect threaded conduit joints from corrosion and to enhance their conductivity.

2.2 NONMETALLIC CONDUITS AND FITTINGS

A. Description: Nonmetallic raceway of circular section with manufacturer-fabricated fittings.

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B. General Requirements for Nonmetallic Conduits and Fittings:

1. Listed and labeled as defined in NFPA 70, by an NRTL, and marked for intended location and application.

2. Comply with TIA-569-D.

C. RNC: Type EPC-40-PVC, complying with NEMA TC 2 and UL 651 unless otherwise indicated.

D. Fittings: Comply with NEMA TC 3; match to conduit or tubing type and material.

E. Solvents and Adhesives: As recommended by conduit manufacturer.

2.3 OPTICAL-FIBER-CABLE PATHWAYS AND FITTINGS

A. Description: Comply with UL 2024; flexible-type pathway with a circular cross section, approved for plenum installation unless otherwise indicated.

B. Listed and labeled as defined in NFPA 70, by an NRTL, and marked for intended location and application.

C. Comply with TIA-569-D.

2.4 HOOKS

A. Flexible and non-metallic, providing sturdy, reliable support of CAT 6, 6A – or fiber optic cable without sagging, bending or damaging the cable, holding up to a 5"diameter bundle of cable.

2.5 BOXES, ENCLOSURES, AND CABINETS

A. Description: Enclosures for communications.

B. General Requirements for Boxes, Enclosures, and Cabinets:

1. Comply with TIA-569-D. 2. Boxes, enclosures, and cabinets installed in wet locations shall be listed and labeled as defined in

NFPA 70, by an NRTL, and marked for use in wet locations. 3. Gangable boxes are.

C. Sheet Metal Outlet and Device Boxes: Comply with NEMA OS 1 and UL 514A.

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PART 3 - EXECUTION

3.1 PATHWAY APPLICATION

A. Outdoors: Apply pathway products as specified below unless otherwise indicated:

1. Concealed Conduit, Aboveground: EMT. 2. Underground Conduit: RNC, Type EPC-40-PVC.

B. Indoors: Apply pathway products as specified below unless otherwise indicated:

1. Exposed, Not Subject to Physical Damage: EMT. 2. Concealed in Ceilings and Interior Walls and Partitions: EMT. 3. Boxes and Enclosures: NEMA 250, Type 1, except use NEMA 250, Type 4 stainless steel units in

institutional and commercial kitchens and damp or wet locations.

C. Minimum Pathway Size: 3/4-inch trade size for copper and aluminum cables, and 1 inch for optical-fiber cables.

D. Pathway Fittings: Compatible with pathways and suitable for use and location.

1. Rigid and Intermediate Steel Conduit: Use threaded rigid steel conduit fittings unless otherwise indicated. Comply with NEMA FB 2.10.

2. PVC Externally Coated, Rigid Steel Conduits: Use only fittings listed for use with this type of conduit. Patch and seal all joints, nicks, and scrapes in PVC coating after installing conduits and fittings. Use sealant recommended by fitting manufacturer and apply in thickness and number of coats recommended by manufacturer.

3. EMT: Use set-screw or compression, steel fittings. Comply with NEMA FB 2.10.

E. Do not install aluminum conduits, boxes, or fittings in contact with concrete or earth.

F. Install surface pathways only where indicated on Drawings.

G. Do not install nonmetallic conduit where ambient temperature exceeds 120 deg F.

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3.2 INSTALLATION

A. Comply with the following standards for installation requirements except where requirements on Drawings or in this Section are stricter:

1. NECA 1. 2. NECA/BICSI 568. 3. TIA-569-D. 4. NECA 101 5. NECA 102. 6. NECA 105. 7. NECA 111.

B. Comply with NFPA 70 limitations for types of pathways allowed in specific occupancies and number of floors.

C. Comply with requirements in Section 078413 "Penetration Firestopping" for firestopping materials and installation for penetrations through fire-rated walls, ceilings, and assemblies.

D. Comply with requirements in Section 270529 "Hangers and Supports for Communications Systems" for hangers and supports.

E. Comply with requirements in Section 270544 "Sleeves and Sleeve Seals for Communications Pathways and Cabling" for sleeves and sleeve seals for communications.

F. Keep pathways at least 6 inches away from parallel runs of flues and steam or hot-water pipes. Install horizontal pathway runs above water and steam piping.

G. Complete pathway installation before starting conductor installation.

H. Arrange stub-ups so curved portions of bends are not visible above finished slab.

I. Install no more than the equivalent of two 90-degree bends in any pathway run. Support within 12 inches of changes in direction. Utilize long radius ells for all optical-fiber cables.

J. Conceal rigid conduit within finished walls, ceilings, and floors unless otherwise indicated. Install conduits parallel or perpendicular to building lines.

K. Support conduit within 12 inches of enclosures to which attached.

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L. Stub-ups to Above Recessed Ceilings:

1. Use EMT, IMC, or RMC for pathways. 2. Use a conduit bushing or insulated fitting to terminate stub-ups not terminated in hubs or in an

enclosure.

M. Threaded Conduit Joints, Exposed to Wet, Damp, Corrosive, or Outdoor Conditions: Apply listed compound to threads of pathway and fittings before making up joints. Follow compound manufacturer's written instructions.

N. Coat field-cut threads on PVC-coated pathway with a corrosion-preventing conductive compound prior to assembly.

O. Terminate threaded conduits into threaded hubs or with locknuts on inside and outside of boxes or cabinets. Install insulated bushings on conduits terminated with locknuts.

P. Install pathways square to the enclosure and terminate at enclosures with locknuts. Install locknuts hand tight plus one additional quarter-turn.

Q. Do not rely on locknuts to penetrate nonconductive coatings on enclosures. Remove coatings in the locknut area prior to assembling conduit to enclosure, to assure a continuous ground path.

R. Cut conduit perpendicular to the length. For conduits of 2-inch trade size and larger, use roll cutter or a guide to ensure cut is straight and perpendicular to the length.

S. Install pull wires in empty pathways. Use polypropylene or monofilament plastic line with not less than 200-lb tensile strength. Leave at least 12 inches of slack at each end of pull wire. Secure pull wire, so it cannot fall into conduit. Cap pathways designated as spare alongside pathways in use.

T. Surface Pathways:

1. Install surface pathway for surface telecommunications outlet boxes only where indicated on Drawings.

2. Install surface pathway with a minimum 2-inch radius control at bend points. 3. Secure surface pathway with screws or other anchor-type devices at intervals not exceeding

48 inches and with no less than two supports per straight pathway section. Support surface pathway according to manufacturer's written instructions. Tape and glue are not acceptable support methods.

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U. Pathways for Optical-Fiber and Communications Cable: Install pathways, metal and nonmetallic, rigid and flexible, as follows:

1. 3/4-Inch Trade Size and Smaller: Install pathways in maximum lengths of 50 feet. 2. 1-Inch Trade Size and Larger: Install pathways in maximum lengths of 75 feet. 3. Install with a maximum of two 90-degree bends or equivalent for each length of pathway unless

Drawings show stricter requirements. Separate lengths with pull or junction boxes or terminations at distribution frames or cabinets where necessary to comply with these requirements.

V. Install pathway-sealing fittings at accessible locations according to NFPA 70 and fill them with listed sealing compound. For concealed pathways, install each fitting in a flush steel box with a blank cover plate having a finish similar to that of adjacent plates or surfaces. Install pathway-sealing fittings according to NFPA 70.

W. Install devices to seal pathway interiors at accessible locations. Locate seals, so no fittings or boxes are between the seal and the following changes of environments. Seal the interior of all pathways at the following points:

1. Where conduits pass from warm to cold locations, such as boundaries of refrigerated spaces. 2. Where an underground service pathway enters a building or structure. 3. Where otherwise required by NFPA 70.

X. Comply with manufacturer's written instructions for solvent welding PVC conduit and fittings.

Y. Expansion-Joint Fittings:

1. Install in each run of aboveground RNC that is located where environmental temperature change may exceed 30 deg F, and that has straight-run length that exceeds 25 feet. Install in each run of aboveground RMC and EMT that is located where environmental temperature change may exceed 100 deg F, and that has straight-run length that exceeds 100 feet.

2. Install type and quantity of fittings that accommodate temperature change listed for each of the following locations:

a. Outdoor Locations Not Exposed to Direct Sunlight: 125 deg F temperature change. b. Outdoor Locations Exposed to Direct Sunlight: 155 deg F temperature change. c. Indoor Spaces Connected with Outdoors without Physical Separation: 125 deg F

temperature change. d. Attics: 135 deg F temperature change.

3. Install fitting(s) that provide expansion and contraction for at least 0.00041 inch per foot of length of straight run per deg F of temperature change for PVC conduits. Install fitting(s) that provide

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expansion and contraction for at least 0.000078 inch per foot of length of straight run per deg F of temperature change for metal conduits.

4. Install expansion fittings at all locations where conduits cross building or structure expansion joints. 5. Install each expansion-joint fitting with position, mounting, and piston setting selected according to

manufacturer's written instructions for conditions at specific location at time of installation. Install conduit supports to allow for expansion movement.

Z. Hooks:

1. Size to allow a minimum of 25 percent future capacity without exceeding design capacity limits. 2. Shall be supported by dedicated support wires. Do not use ceiling grid support wire or support rods. 3. Hook spacing shall allow no more than 6 inches of slack. The lowest point of the cables shall be no

less than 6 inches adjacent to ceilings, mechanical ductwork and fittings, luminaires, power conduits, power and telecommunications outlets, and other electrical and communications equipment.

4. Space hooks no more than 5 feet o.c. 5. Provide a hook at each change in direction.

AA. Mount boxes at heights indicated on Drawings. If mounting heights of boxes are not individually indicated, give priority to ADA requirements. Install boxes with height measured to center of box unless otherwise indicated.

BB. Recessed Boxes in Masonry Walls: Saw-cut opening for box in center of cell of masonry block, and install box flush with surface of wall. Prepare block surface to provide a flat surface for a raintight connection between box and cover plate or supported equipment and box.

CC. Horizontally separate boxes mounted on opposite sides of walls, so they are not in the same vertical channel.

DD. Support boxes of three gangs or more from more than one side by spanning two framing members or mounting on brackets specifically designed for the purpose.

EE. Fasten junction and pull boxes to or support from building structure. Do not support boxes by conduits.

FF. Set metal floor boxes level and flush with finished floor surface.

GG. Set nonmetallic floor boxes level. Trim after installation to fit flush with finished floor surface.

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3.3 INSTALLATION OF UNDERGROUND CONDUIT

A. Direct-Buried Conduit:

1. Excavate trench bottom to provide firm and uniform support for conduit. Prepare trench bottom as specified in Section 312000 "Earth Moving" for pipe of less than 6 inches in nominal diameter.

2. After installing conduit, backfill and compact. Start at tie-in point, and work toward end of conduit run, leaving conduit at end of run free to move with expansion and contraction as temperature changes during this process. Firmly hand tamp backfill around conduit to provide maximum supporting strength. After placing controlled backfill to within 12 inches of finished grade, make final conduit connection at end of run and complete backfilling with normal compaction as specified in Section 312000 "Earth Moving."

3. Install manufactured duct elbows for stub-ups at poles and equipment and at building entrances through floor unless otherwise indicated. Encase elbows for stub-up ducts throughout length of elbow.

4. Install manufactured rigid steel conduit elbows for stub-ups at poles and equipment and at building entrances through floor.

a. Couple steel conduits to ducts with adapters designed for this purpose, and encase coupling with 3 inches of concrete around conduit for a minimum of 12 inches on each side of the coupling.

b. For stub-ups at equipment mounted on outdoor concrete bases and where conduits penetrate building foundations, extend steel conduit horizontally a minimum of 60 inches from edge of foundation or equipment base. Install insulated grounding bushings on terminations at equipment.

5. Warning Planks: Bury warning planks approximately 12 inches above direct-buried conduits, but a minimum of 6 inches below grade. Align planks along centerline of conduit.

3.4 PROTECTION

A. Protect coatings, finishes, and cabinets from damage or deterioration.

1. Repair damage to galvanized finishes with zinc-rich paint recommended by manufacturer. 2. Repair damage to PVC coatings or paint finishes with matching touchup coating recommended by

manufacturer.


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HANGERS AND SUPPORTS FOR COMMUNICATIONS SYSTEMS



SECTION 27 05 29

PART 1 - GENERAL



1.2 SUMMARY


1. Steel slotted support systems for communication raceways. 2. Conduit and cable support devices. 3. Mounting, anchoring, and attachment components, including powder-actuated fasteners,

mechanical expansion anchors, concrete inserts, clamps, through bolts, toggle bolts, and hanger rods.

B. Related Requirements:

1. Section 270548 "Seismic Controls for Communications Systems" for products and installation requirements necessary for compliance with seismic criteria.



1. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for the following:

a. Slotted support systems, hardware, and accessories. b. Clamps. c. Hangers. d. Sockets. e. hEye nuts.

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f. Fasteners. g. Anchors. h. Saddles. i. Brackets.

2. Include rated capacities and furnished specialties and accessories.



PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

2.2 SUPPORT, ANCHORAGE, AND ATTACHMENT COMPONENTS

A. Steel Slotted Support Systems: Preformed steel channels and angles with minimum 13/32-inch- diameter holes at a maximum of 8 inches o.c. in at least one surface.

1. Standard: Comply with MFMA-4 factory-fabricated components for field assembly. 2. Material for Channel, Fittings, and Accessories: Galvanized steel. 3. Painted Coatings: Manufacturer's standard painted coating applied according to MFMA-4. 4. Protect finishes on exposed surfaces from damage by applying a strippable, temporary protective

covering before shipping. 5. Channel Dimensions: Selected for applicable load criteria.

B. Conduit and Cable Support Devices: Steel clamps, hangers, and associated fittings, designed for types and sizes of raceway or cable to be supported.

C. Mounting, Anchoring, and Attachment Components: Items for fastening electrical items or their supports to building surfaces include the following:

1. Clamps for Attachment to Steel Structural Elements: MSS SP-58 units are suitable for attached structural element.

2. Through Bolts: Structural type, hex head, and high strength. Comply with ASTM A 325. 3. Toggle Bolts: All-steel Stainless-steel springhead type. 4. Hanger Rods: Threaded steel.

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PART 3 - EXECUTION

3.1 APPLICATION

A. Comply with the following standards for application and installation requirements of hangers and supports, except where requirements on Drawings or in this Section are stricter:

1. NECA 1. 2. NECA/BICSI 568. 3. TIA-569-D. 4. NECA 101 5. NECA 102. 6. NECA 105. 7. NECA 111.

B. Comply with requirements in Section 078413 "Penetration Firestopping" for firestopping materials and installation for penetrations through fire-rated walls, ceilings, and assemblies.

C. Comply with requirements for pathways specified in Section 270528 "Pathways for Communications Systems."

D. Maximum Support Spacing and Minimum Hanger Rod Size for Raceway: Space supports for EMTs, IMCs, and RMCs as required by scheduled in NECA 1, where its Table 1 lists maximum spacings that are less than those stated in NFPA 70. Minimum rod size shall be 1/4 inch in diameter.

E. Multiple Raceways or Cables: Install trapeze-type supports fabricated with steel slotted or other support system, sized so capacity can be increased by at least 25 percent in future without exceeding specified design load limits.

1. Secure raceways and cables to these supports with two-bolt conduit clamps.

F. Spring-steel clamps designed for supporting single conduits without bolts may be used for 1-1/2-inch and smaller raceways serving branch circuits and communication systems above suspended ceilings and for fastening raceways to trapeze supports.

3.2 SUPPORT INSTALLATION

A. Raceway Support Methods: In addition to methods described in NECA 1, EMT may be supported by openings through structure members, according to NFPA 70.

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B. Strength of Support Assemblies: Where not indicated, select sizes of components, so strength will be adequate to carry present and future static loads within specified loading limits. Minimum static design load used for strength determination shall be weight of supported components plus 200 lb.

C. Mounting and Anchorage of Surface-Mounted Equipment and Components: Anchor and fasten communications items and their supports to building structural elements by the following methods unless otherwise indicated by code:

1. To Wood: Fasten with lag screws or through bolts.

D. Drill holes for expansion anchors in concrete at locations and to depths that avoid the need for reinforcing bars.

3.3 PAINTING

A. Touchup: Comply with requirements in for cleaning and touchup painting of field welds, bolted connections, and abraded areas of shop paint on miscellaneous metal.

B. Galvanized Surfaces: Clean welds, bolted connections, and abraded areas, and apply galvanizing-repair paint to comply with ASTM A 780.


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COMMUNICATIONS OPTICAL FIBER BACKBONE CABLING



SECTION 27 13 23

PART 1 - GENERAL



1.2 SUMMARY


1. 850 nanometer laser-optimized 50/125 micrometer multimode optical fiber cable (OM4). 2. 9/125 micrometer single-mode, indoor-outdoor optical fiber cable (OS1).

1.3 DEFINITIONS

A. BICSI: Building Industry Consulting Service International.

B. Cross-Connect: A facility enabling the termination of cable elements and their interconnection or cross-connection.

C. RCDD: Registered Communications Distribution Designer.

1.4 OPTICAL FIBER BACKBONE CABLING DESCRIPTION

A. Optical fiber backbone cabling system shall provide interconnections between communications equipment rooms, main terminal space, and entrance facilities in the telecommunications cabling system structure. Cabling system consists of backbone cables, intermediate and main cross-connects, mechanical terminations, and patch cords or jumpers used for backbone-to-backbone cross-connection.

B. Backbone cabling cross-connects may be located in communications equipment rooms or at entrance facilities. Bridged taps and splitters shall not be used as part of backbone cabling.

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A. Qualification Data: Forinstallation supervisor, and field inspector.

B. Product Certificates: For each type of product.

C. Field quality-control reports.

1.7 CLOSEOUT SUBMITTALS

A. Maintenance Data: For optical fiber cable, splices, and connectors to include in maintenance manuals.


A. Installer Qualifications: Cabling Installer must have personnel certified by BICSI on staff.

1. Installation Supervision: Installation shall be under the direct supervision of Technician, who shall be present at all times when Work of this Section is performed at Project site.

2. Testing Supervisor: Currently certified by BICSI.

B. Testing Agency Qualifications: Testing agency must have personnel certified by BICSI on staff.

1. Testing Agency's Field Supervisor: Currently certified by BICSI.

1.9 COORDINATION

A. Coordinate layout and installation of telecommunications pathways and cabling with Owner's telecommunications and LAN equipment and service suppliers.

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PART 2 - PRODUCTS


A. General Performance: Backbone cabling system shall comply with transmission standards in TIA-568-C.1, when tested according to test procedures of this standard.

B. Surface-Burning Characteristics: As determined by testing identical products according to ASTM E 84 by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

C. Telecommunications Pathways and Spaces: Comply with TIA-569-D.

D. Grounding: Comply with TIA-607-B.

2.2 850 NANOMETER LASER-OPTIMIZED, 50/125 MICROMETER, MULTIMODE OPTICAL FIBER CABLE (OM4)

A. Description: Multimode, 50/125-micrometer, 6-fiber, nonconductive, tight buffer, optical fiber cable.

B. Standards:

1. Comply with ICEA S-83-596 for mechanical properties. 2. Comply with TIA-568-C.3 for performance specifications. 3. Comply with TIA-492AAAD for detailed specifications.

C. Maximum Attenuation: 3.50 dB/km at 850 nm; 1.5 dB/km at 1300 nm.

D. Minimum Overfilled Modal Bandwidth-length Product: 3500 MHz-km at 850 nm; 500 MHz-km at 1300 nm.

E. Minimum Effective Modal Bandwidth-length Product: 4700 MHz-km at 850 nm.

F. Jacket:

1. Jacket Color: Match existing site conditions. 2. Cable cordage jacket, fiber, unit, and group color shall be according to TIA-598-D. 3. Imprinted with fiber count, fiber type, and aggregate length at regular intervals not to exceed

40 inches.

G. Listed and labeled by an NRTL acceptable to authorities having jurisdiction as complying with UL 444, UL 1651, and NFPA 70 for the following types:

1. Riser Rated, Nonconductive: Type OFNR or, complying with UL 1666.

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2.3 SOURCE QUALITY CONTROL

A. Testing Agency: Engage a qualified testing agency to evaluate cables.

B. Factory test multimode optical fiber cables according to TIA-526-14-B and TIA-568-C.3.

C. Factory test pre-terminated optical fiber cable assemblies according to TIA-526-14-B and TIA-568-C.3.

D. Cable will be considered defective if it does not pass tests and inspections.

E. Prepare test and inspection reports.

PART 3 - EXECUTION

3.1 ENTRANCE FACILITIES

A. Coordinate backbone cabling with the protectors and demarcation point provided by communications service provider.

3.2 WIRING METHODS

A. Wiring Method: Conceal conductors and cables in accessible ceilings, walls, and floors where possible.

B. Wiring within Enclosures: Bundle, lace, and train cables within enclosures. Connect to terminal points with no excess and without exceeding manufacturer's limitations on bending radii. Provide and use lacing bars and distribution spools.

3.3 INSTALLATION OF OPTICAL FIBER BACKBONE CABLES

A. Comply with NECA 1, NECA 301, and NECA/BICSI 568.

B. General Requirements for Optical Fiber Cabling Installation:

1. Comply with TIA-568-C.1 and TIA-568-C.3. 2. Comply with BICSI ITSIMM, Ch. 6, "Cable Termination Practices." 3. Terminate all cables; no cable shall contain unterminated elements. Make terminations only at

indicated outlets, terminals, cross-connects, and patch panels. 4. Cables may not be spliced. Secure and support cables at intervals not exceeding 30 inches and not

more than 6 inches from cabinets, boxes, fittings, outlets, racks, frames, and terminals.

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5. Install lacing bars to restrain cables, to prevent straining connections, and to prevent bending cables to smaller radii than minimums recommended by manufacturer.

6. Bundle, lace, and train cable to terminal points without exceeding manufacturer's limitations on bending radii, but not less than radii specified in BICSI ITSIMM, "Cabling Termination Practices" Chapter. Use lacing bars and distribution spools.

7. Do not install bruised, kinked, scored, deformed, or abraded cable. Do not splice cable between termination, tap, or junction points. Remove and discard cable if damaged during installation and replace it with new cable.

8. Cold-Weather Installation: Bring cable to room temperature before dereeling. Heat lamps shall not be used for heating.

9. Pulling Cable: Comply with BICSI ITSIMM, Ch. 4, "Pulling Cable." Monitor cable pull tensions. 10. Cable may be terminated on connecting hardware that is rack or cabinet mounted.

C. Open-Cable Installation:

1. Install cabling with horizontal and vertical cable guides in telecommunications spaces with terminating hardware and interconnection equipment.

2. Cable shall not be run through structural members or in contact with pipes, ducts, or other potentially damaging items.

D. Group connecting hardware for cables into separate logical fields.

3.4 FIELD QUALITY CONTROL

A. Perform tests and inspections.

B. Tests and Inspections:

1. Visually inspect optical fiber jacket materials for NRTL certification markings. Inspect cabling terminations in communications equipment rooms for compliance with color-coding for pin assignments, and inspect cabling connections for compliance with TIA-568-C.1.

2. Visually inspect cable placement, cable termination, grounding and bonding, equipment and patch cords, and labeling of all components.

3. Optical Fiber Cable Tests:

a. Test instruments shall meet or exceed applicable requirements in TIA-568-C.1. Use only test cords and adapters that are qualified by test equipment manufacturer for channel or link test configuration.

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b. Link End-to-End Attenuation Tests:

1) Horizontal and multimode backbone link measurements: Test at 850 or 1300 nm in one direction according to TIA-526-14-B, Method B, One Reference Jumper.

2) Attenuation test results for backbone links shall be less than 2.0 dB. Attenuation test results shall be less than those calculated according to equation in TIA-568-C.1.

C. Data for each measurement shall be documented. Data for submittals shall be printed in a summary report that is formatted similar to Table 10.1 in BICSI TDMM, or transferred from the instrument to the computer, saved as text files, and printed and submitted.

D. Remove and replace cabling where test results indicate that it does not comply with specified requirements.

E. End-to-end cabling will be considered defective if it does not pass tests and inspections.

F. Prepare test and inspection reports.


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COMMUNICATIONS COPPER HORIZONTAL CABLING



SECTION 27 15 13

PART 1 - GENERAL



1.2 SUMMARY


1. Category 6 twisted pair cable. 2. Category 6a twisted pair cable. 3. Grounding provisions for twisted pair cable.

B. Related Requirements:

1. Section 270513 "Conductors and Cables for Communications Systems" for data cabling associated with system panels and devices.

1.3 DEFINITIONS

A. Cross-Connect: A facility enabling the termination of cable elements and their interconnection or cross-connection.

B. EMI: Electromagnetic interference.

C. FTP: Shielded twisted pair.

D. F/FTP: Overall foil screened cable with foil screened twisted pair.

E. F/UTP: Overall foil screened cable with unscreened twisted pair.

F. IDC: Insulation displacement connector.

G. LAN: Local area network.

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H. Jack: Also commonly called an "outlet," it is the fixed, female connector.

I. Plug: Also commonly called a "connector," it is the removable, male telecommunications connector.

J. Screen: A metallic layer, either a foil or braid, placed around a pair or group of conductors.

K. Shield: A metallic layer, either a foil or braid, placed around a pair or group of conductors.

L. S/FTP: Overall braid screened cable with foil screened twisted pair.

M. S/UTP: Overall braid screened cable with unscreened twisted pairs.

N. UTP: Unscreened (unshielded) twisted pair.

1.4 COPPER HORIZONTAL CABLING DESCRIPTION

A. Horizontal cable cabling system shall provide interconnections between Distributor A, Distributor B, or Distributor C, and the equipment outlet, otherwise known as "Cabling Subsystem 1," in the telecommunications cabling system structure. Cabling system consists of horizontal cables, intermediate and main cross-connects, mechanical terminations, and patch cords or jumpers used for horizontal-to-horizontal cross-connection.

1. TIA-568-C.1 requires that a minimum of two equipment outlets be installed for each work area. 2. Horizontal cabling shall contain no more than one transition point or consolidation point between

the horizontal cross-connect and the telecommunications equipment outlet. 3. Bridged taps and splices shall not be installed in the horizontal cabling.

B. A work area is approximately 100 sq. ft., and includes the components that extend from the equipment outlets to the station equipment.

C. The maximum allowable horizontal cable length is 295 feet. This maximum allowable length does not include an allowance for the length of 16 feet to the workstation equipment or in the horizontal cross-connect.



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A. Qualification Data: For installation supervisor, and field inspector.

B. Field quality-control reports.


A. Installer Qualifications: Cabling Installer must have personnel certified by BICSI on staff.

1. Installation Supervision: Installation shall be under the direct supervision of Technician, who shall be present at all times when Work of this Section is performed at Project site.

2. Testing Supervisor: Currently certified by BICSI to supervise on-site testing.

B. Testing Agency Qualifications: Testing agency must have personnel certified by BICSI on staff.

1. Testing Agency's Field Supervisor: Currently certified by BICSI.

1.8 DELIVERY, STORAGE, AND HANDLING

A. Test cables upon receipt at Project site.

1. Test each pair of twisted pair cable for open and short circuits.

1.9 PROJECT CONDITIONS

A. Environmental Limitations: Do not deliver or install cables and connecting materials until wet work in spaces is complete and dry, and temporary HVAC system is operating and maintaining ambient temperature and humidity conditions at occupancy levels during the remainder of the construction period.

1.10 COORDINATION

A. Coordinate layout and installation of telecommunications pathways and cabling with Owner's telecommunications and LAN equipment and service suppliers.

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PART 2 - PRODUCTS


A. General Performance: Horizontal cabling system shall comply with transmission standards in TIA-568-C.1, when tested according to test procedures of this standard.

B. Telecommunications Pathways and Spaces: Comply with TIA-569-D.

C. Grounding: Comply with TIA-607-B.

2.2 GENERAL CABLE CHARACTERISTICS

A. Listed and labeled by an NRTL acceptable to authorities having jurisdiction as complying with the applicable standard and NFPA 70 for the following types:

1. Communications, Plenum Rated: Type CMP complying with UL 1685. 2. Communications, Plenum Rated: Type CM, Type CMG, Type CMP, Type CMR, or Type CMX in

metallic conduit installed according to NFPA 70, Article 300.22, "Wiring in Ducts, Plenums, and Other Air-Handling Spaces."

3. Communications, Non-plenum: Type CMR complying with UL 1666. 4. Communications, Non-plenum: Type CMP or Type CMR in listed plenum or riser communications

raceway. 5. Communications, Non-plenum: Type CMP or Type CMR in metallic conduit installed according to

NFPA 70, Article 300.22, "Wiring in Ducts, Plenums, and Other Air-Handling Spaces."

B. Surface-Burning Characteristics: Comply with ASTM E 84; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

C. RoHS compliant.

2.3 CATEGORY 6 TWISTED PAIR CABLE

A. Description: Four-pair, balanced-twisted pair cable, with internal spline, certified to meet transmission characteristics of Category 6 cable at frequencies up to 250MHz.

B. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Belden CDT Networking Division/NORDX.

2. Berk-Tek Leviton; a Nexans/Leviton alliance.

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C. Standard: Comply with NEMA WC 66/ICEA S-116-732 and TIA-568-C.2 for Category 6 cables.

D. Shielding/Screening: Shielded twisted pairs (FTP).

E. Cable Rating: Plenum.

F. Jacket: Thermoplastic, color per existing District standards.

2.4 GROUNDING

A. Comply with TIA-607-B.

PART 3 - EXECUTION

3.1 WIRING METHODS

A. Wiring Method: Conceal conductors and cables in accessible ceilings, walls, and floors where possible.

B. Wiring within Enclosures: Bundle, lace, and train cables within enclosures. Connect to terminal points with no excess and without exceeding manufacturer's limitations on bending radii. Provide and use lacing bars and distribution spools. Install conductors parallel with or at right angles to sides and back of enclosure.

3.2 INSTALLATION OF TWISTED-PAIR HORIZONTAL CABLES

A. Comply with NECA 1 and NECA/BICSI 568.

B. General Requirements for Cabling:

1. Comply with TIA-568-C.0, TIA-568-C.1, and TIA-568-C.2. 2. Comply with BICSI's "Information Transport Systems Installation Methods Manual (ITSIMM), Ch. 5,

"Copper Structured Cabling Systems," "Cable Termination Practices" Section. 3. Install 110-style IDC termination hardware unless otherwise indicated. 4. Do not untwist twisted pair cables more than 1/2 inch from the point of termination to maintain cable

geometry. 5. Terminate all conductors; no cable shall contain unterminated elements. Make terminations only at

indicated outlets, terminals, cross-connects, and patch panels. 6. MUTOA shall not be used as a cross-connect point. 7. Cables may not be spliced. Secure and support cables at intervals not exceeding 30 inches and not

more than 6 inches from cabinets, boxes, fittings, outlets, racks, frames, and terminals.

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8. Install lacing bars to restrain cables, prevent straining connections, and prevent bending cables to smaller radii than minimums recommended by manufacturer.

9. Bundle, lace, and train conductors to terminal points without exceeding manufacturer's limitations on bending radii, but not less than radii specified in BICSI Information Transport Systems Installation Methods Manual, Ch. 5, "Copper Structured Cabling Systems," "Cable Termination Practices" Section. Use lacing bars and distribution spools.

10. Do not install bruised, kinked, scored, deformed, or abraded cable. Do not splice cable between termination, tap, or junction points. Remove and discard cable if damaged during installation, and replace it with new cable.

11. Cold-Weather Installation: Bring cable to room temperature before dereeling. Heat lamps shall not be used for heating.

12. Pulling Cable: Comply with BICSI Information Transport Systems Installation Methods Manual, Ch. 5, "Copper Structured Cabling Systems," "Pulling and Installing Cable" Section. Monitor cable pull tensions.

C. Open-Cable Installation:

1. Install cabling with horizontal and vertical cable guides in telecommunications spaces with terminating hardware and interconnection equipment.

2. Suspend twisted pair cabling, not in a wireway or pathway, a minimum of 8 inches above ceilings by cable supports not more than 60 inches apart.

3. Cable shall not be run through structural members or in contact with pipes, ducts, or other potentially damaging items.

D. Installation of Cable Routed Exposed under Raised Floors:

1. Install plenum-rated cable only. 2. Install cabling after the flooring system has been installed in raised floor areas. 3. Coil cable 6 feet long not less than 12 inches in diameter below each feed point.

E. Group connecting hardware for cables into separate logical fields.

F. Separation from EMI Sources:

1. Comply with recommendations from BICSI's "Telecommunications Distribution Methods Manual" and TIA-569-D for separating unshielded copper communication cable from potential EMI sources, including electrical power lines and equipment.

2. Separation between open communications cables or cables in nonmetallic raceways and unshielded power conductors and electrical equipment shall be as follows:

a. Electrical Equipment Rating Less Than 2 kVA: A minimum of 5 inches.

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b. Electrical Equipment Rating between 2 and 5 kVA: A minimum of 12 inches. c. Electrical Equipment Rating More Than 5 kVA: A minimum of 24 inches.

3. Separation between communications cables in grounded metallic raceways and unshielded power lines or electrical equipment shall be as follows:

a. Electrical Equipment Rating Less Than 2 kVA: A minimum of 2-1/2 inches. b. Electrical Equipment Rating between 2 and 5 kVA: A minimum of 6 inches. c. Electrical Equipment Rating More Than 5 kVA: A minimum of 12 inches.

4. Separation between communications cables in grounded metallic raceways, power lines, and electrical equipment located in grounded metallic conduits or enclosures shall be as follows:

a. Electrical Equipment Rating Less Than 2 kVA: No requirement. b. Electrical Equipment Rating between 2 and 5 kVA: A minimum of 3 inches. c. Electrical Equipment Rating More Than 5 kVA: A minimum of 6 inches.

5. Separation between Communications Cables and Electrical Motors and Transformers, 5 kVA or HP and larger: A minimum of 48 inches.

6. Separation between Communications Cables and Fluorescent Fixtures: A minimum of 5 inches.

3.3 FIRESTOPPING

A. Comply with requirements in Section 078413 "Penetration Firestopping."

B. Comply with TIA-569-D, Annex A, "Firestopping."

C. Comply with "Firestopping Systems" Article in BISCI's "Telecommunications Distribution Methods Manual."

3.4 GROUNDING

A. Install grounding according to the "Grounding, Bonding, and Electrical Protection" chapter in BICSI's "Telecommunications Distribution Methods Manual."

B. Comply with TIA-607-B and NECA/BICSI-607.

C. Locate grounding bus bar to minimize the length of bonding conductors. Fasten to wall, allowing at least a 2-inch clearance behind the grounding bus bar. Connect grounding bus bar to suitable electrical building ground, using a minimum No. 4 AWG grounding electrode conductor.

D. Bond metallic equipment to the grounding bus bar, using not smaller than a No. 6 AWG equipment grounding conductor.

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3.5 IDENTIFICATION

A. Paint and label colors for equipment identification shall comply with TIA-606-B for level of administration.

B. Cable Schedule: Install in a prominent location in each equipment room and wiring closet. List incoming and outgoing cables and their designations, origins, and destinations. Protect with rigid frame and clear plastic cover. Furnish an electronic copy of final comprehensive schedules for Project.

C. Cabling Administration Drawings: Show building floor plans with cabling administration-point labeling. Identify labeling convention and show labels for telecommunications closets, terminal hardware and positions, horizontal cables, work areas and workstation terminal positions, grounding buses and pathways, and equipment grounding conductors.

D. Cable and Wire Identification:

1. Label each cable within 4 inches of each termination and tap, where it is accessible in a cabinet or junction or outlet box, and elsewhere as indicated.

2. Each wire connected to building-mounted devices is not required to be numbered at the device if wire color is consistent with associated wire connected and numbered within panel or cabinet.

3. Exposed Cables and Cables in Cable Trays and Wire Troughs: Label each cable at intervals not exceeding 15 feet.

4. Label each terminal strip, and screw terminal in each cabinet, rack, or panel.

a. Individually number wiring conductors connected to terminal strips, and identify each cable or wiring group, extended from a panel or cabinet to a building-mounted device, with the name and number of a particular device.

b. Label each unit and field within distribution racks and frames.

5. Identification within Connector Fields in Equipment Rooms and Wiring Closets: Label each connector and each discrete unit of cable-terminating and -connecting hardware. Where similar jacks and plugs are used for both voice and data communication cabling, use a different color for jacks and plugs of each service.

E. Labels shall be preprinted or computer-printed type, with a printing area and font color that contrast with cable jacket color but still comply with TIA-606-B requirements for the following:

1. Cables use flexible vinyl or polyester that flexes as cables are bent.

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A. Perform tests and inspections.

B. Tests and Inspections:

1. Visually inspect jacket materials for NRTL certification markings. Inspect cabling terminations in communications equipment rooms for compliance with color-coding for pin assignments, and inspect cabling connections for compliance with TIA-568-C.1.

2. Visually inspect cable placement, cable termination, grounding and bonding, equipment and patch cords, and labeling of all components.

3. Test twisted pair cabling for DC loop resistance, shorts, opens, intermittent faults, and polarity between conductors. Test operation of shorting bars in connection blocks. Test cables after termination but not cross-connection.

a. Test instruments shall meet or exceed applicable requirements in TIA-568-C.2. Perform tests with a tester that complies with performance requirements in "Test Instruments (Normative)" Annex, complying with measurement accuracy specified in "Measurement Accuracy (Informative)" Annex. Use only test cords and adapters that are qualified by test equipment manufacturer for channel or link test configuration.

C. Data for each measurement shall be documented. Data for submittals shall be printed in a summary report that is formatted similarly to Table 10.1 in BICSI's "Telecommunications Distribution Methods Manual," or shall be transferred from the instrument to the computer, saved as text files, printed, and submitted.

D. Remove and replace cabling where test results indicate that they do not comply with specified requirements.

E. End-to-end cabling will be considered defective if it does not pass tests and inspections.

F. Prepare test and inspection reports.

END OF SECTION 27 15 13

Project No. 2018-002.00

ARBUCKLE ELEMENTARY SCHOOL MODULAR BUILDING RELOCATION FIRE ALARM REQUIREMENTS PIERCE JOINT USD SECTION 28 31 12-1

FIRE ALARM REQUIREMENTS

SECTION 28 31 12

PART 1 – GENERAL

1.1. RELATED DOCUMENTS


1.2. SUMMARY

A. This Section includes fire alarm systems.

1.3. DEFINITIONS

A. Definitions in NFPA 72 apply to fire alarm terms used in this Section.

1.4. SYSTEM DESCRIPTION

A. Noncoded, addressable system; multiplexed signal transmission dedicated to fire alarm service only.

1. Interface with existing fire alarm system.

1.5. PERFORMANCE REQUIREMENTS

A. Comply with NFPA 72.

B. Premises protection includes Type E Occupancy.

C. Fire alarm signal initiation shall be by one or more of the following devices:

Manual stations. Heat detectors. Smoke detectors. Verified automatic alarm operation of smoke detectors. Automatic sprinkler system water flow.

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D. Fire alarm signal shall initiate the following actions:

1. Alarm notification appliances shall operate continuously. 2. Identify alarm at the FACP and remote annunciators. 3. Transmit an alarm signal to the remote alarm receiving station. 4. Activate alarm communication system.

E. Supervisory signal initiation shall be by one or more of the following devices or actions:

1. Operation of a fire-protection system valve tamper.

F. System trouble signal initiation shall be by one or more of the following devices or actions:

1. Open circuits, shorts and grounds of wiring for initiating device, signaling line, and

notification-appliance circuits. 2. Opening, tampering, or removal of alarm-initiating and supervisory signal-initiating

devices. 3. Loss of primary power at the FACP. 4. Ground or a single break in the FACP internal circuits. 5. Abnormal AC voltage at the FACP. 6. A break in standby battery circuitry. 7. Failure of battery charging. 8. Abnormal position of any switch at the FACP or annunciator. 9. Fire-pump power failure, including a dead-phase or phase-reversal condition. 10. Low air-pressure switch operation on a dry-pipe or preaction sprinkler system.

G. System Trouble and Supervisory Signal Actions: Ring trouble bell and annunciate at the FACP and

remote annunciators. 1.6. SUBMITTALS

A. Product Data: For each type of product indicated.

B. Shop Drawings:

1. Shop Drawings shall be prepared by persons with the following qualifications:

a. Trained and certified by manufacturer in fire alarm system design.

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2. System Operation Description: Detailed description for this Project, including method of operation and supervision of each type of circuit and sequence of operations for manually and automatically initiated system inputs and outputs. Manufacturer’s standard descriptions for generic systems are not acceptable.

3. Device Address List: Coordinate with final system programming. 4. System riser diagram with device addresses, conduit sizes and cable and wire types and

sizes. 5. Wiring Diagrams: Power, signal, and control wiring. Include diagrams for equipment and

for system with all terminals and interconnections identified. Show wiring color code. 6. Batteries: Size calculations. 7. Ductwork Coordination Drawings: Plans, sections, and elevations of ducts, drawn to scale

and coordinating the installation of duct smoke detectors and access to them. Show critical dimensions that relate to placement and support of sampling tubes, the detector housing, and remote status and alarm indicators. Locate detectors according to manufacturer’s written recommendations.

8. Alarm Signaling Service: Equipment rack or console layout, grounding schematic, amplifier power calculation, and single-line connection diagram.

9. Floor Plans: Indicate final outlet locations showing address of each addressable device. Show size and route of cable and conduits.

C. Qualification Data: For Installer.

D. Field quality-control test reports.

E. Operation and Maintenance Data: For fire alarm system to include in emergency, operation, and

maintenance manuals. Comply with NFPA 72, Appendix A, recommendations for Owner’s manual. Include abbreviated operating instructions for mounting at the FACP.

F. Submittals to Authorities Having Jurisdiction: In addition to distribution requirements for submittals

specified in Division 1 Section “Submittals,” make an identical submittal to authorities having jurisdiction. To facilitate review, include copies of annotated Contract Drawings as needed to depict component locations. Resubmit if required to make clarifications or revisions to obtain approval. On receipt of comments from authorities having jurisdiction, submit them to Architect for review.

G. Documentation:

1. Approval and Acceptance: Provide the ''Record of Completion'' form according to NFPA

72 to Owner, Architect, and authorities having jurisdiction.

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2. Record of Completion Documents: Provide the ''Permanent Records'' according to NFPA 72 to Owner, Architect, and authorities having jurisdiction. Format of the written sequence of operation shall be the optional input/output matrix.

a. Hard copies on paper to Owner, Architect, and authorities having jurisdiction. b. Electronic media may be provided to Architect.

1.7. Quality Assurance

A. Installer Qualifications: Personnel shall be trained and certified by manufacturer for installation of

units required for this Project.

B. Installer Qualifications: Work of this Section be performed by a UL-listed company.

C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in CEC, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

1.8. PROJECT CONDITIONS

A. Interruption of Existing Fire Alarm Service: Do not interrupt fire alarm service to facilities occupied

by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary guard service according to requirements indicated:

1. Notify Architect, Construction Manager, and Owner no fewer than two days in advance of

proposed interruption of fire alarm service. 2. Do not proceed with interruption of fire alarm service without Architect’s, Construction

Manager’s, and Owner’s written permission.

1.9. SEQUENCING AND SCHEDULING

A. Existing Fire Alarm Equipment: Maintain fully operational until new equipment has been tested and accepted. As new equipment is installed, label it ''NOT IN SERVICE'' until it is accepted. Remove labels from new equipment when put into service and label existing fire alarm equipment ''NOT IN SERVICE'' until removed from the building.

B. Equipment Removal: After acceptance of the new fire alarm system, remove existing disconnected fire alarm equipment.

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PART 2 – PRODUCTS

2.1 MANUFACTURERS

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

B. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. FACP and Equipment: As shown on the Plans. 2. Wire and Cable:

a. Comtran Corporation. b. Helix/HiTemp Cables, Inc.; a Draka USA Company. c. Rockbestos-Suprenant Cable Corporation; a Marmon Group Company. d. West Penn Wire/CDT; a division of Cable Design Technologies.

3. Audible and Visual Signals: As shown on the Plans.

2.2 EXISTING FIRE ALARM SYSTEM

A. Compatibility with Existing Equipment: Fire alarm system and components shall operate as an extension of an existing system.

2.19 WIRE AND CABLE

A. Wire and cable for the fire alarm systems shall be UL listed and labeled as complying with CEC,

Article 760.

B. Signaling Line Circuits: Twisted shielded pair, size as recommended by system manufacturer.

1. Circuit Integrity Cable: Twisted shielded pair, CEC, Article 760, Classification CI, for power-limited fire alarm signal service. UL listed as Type FP:, and complying with requirements in UL 1424 and in UL 2196 for a 2-hour rating.

C. Non-Power-Limited Circuits: Solid-copper conductors with 600-V rated, 75° C, color-coded

insulation.

1. Low-Voltage Circuits: No. 16 AWG, minimum. 2. Line-Voltage Circuits: No. 12 AWG, minimum.

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3. Multiconductor Armored Cable: CEC Type MC, copper conductors, TFN/THHN conductor insulation, copper drain wire, copper armor with outer jacket with red identifier stripe, UL listed for fire alarm and cable tray installation, plenum rated, and complying with requirements in UL 2196 for 2-hour rating.

PART 3 – EXECUTION

3.1 EQUIPMENT INSTALLATION

A. Connecting to Existing Equipment: Verify that existing fire alarm system is operational before making changes or connections.

1. Connect new equipment to the existing control panel in the existing part of the building. 2. Connect new equipment to the existing monitoring equipment at the Supervising Station. 3. Expand, modify, and supplement the existing [control] [monitoring] equipment as

necessary to extend the existing [control] [monitoring] functions to the new points. New components shall be capable of merging with the existing configuration without degrading the performance of either system.

B. Smoke or Heat Detector Spacing:

1. Smooth ceiling spacing shall not exceed the rating of the detector. 2. Spacing of heat detectors for irregular areas, for irregular ceiling construction, and for high

ceiling areas, shall be determined according to Appendix A in NFPA 72. 3. Spacing of heat detectors shall be determined based on guidelines and recommendations

in NFPA 72.

C. HVAC: Locate detectors not closer than 3 feet (1 m) from air-supply diffuser or return-air opening.

D. Remote Status and Alarm Indicators: Install near each smoke detector and each sprinkler water-flow switch and valve-tamper switch that is not readily visible from normal viewing position.

E. Audible Alarm-Indicating Devices: Install not less than 6 inches (150 mm) below the ceiling. Install

bells and horns on flush-mounted back boxes with the device-operating mechanism concealed behind a grille.

F. Visible Alarm-Indicating Devices: Install adjacent to each alarm bell or alarm horn and at least

6 inches (150 mm) below the ceiling.

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G. Device Location-Indicating Lights: Locate in public space near the device they monitor.

H. RPS: Surface mount with tops of cabinets not more than 72 inches (1830 mm) above the finished floor.

3.2 WIRING INSTALLATION

A. Install wiring according to the following:

1. NECA 1. 2. TIA/EIA 568-A.

B. Wiring Method:

1. Cables and raceways used for fire alarm circuits, and equipment control wiring associated

with the fire alarm system, may not contain any other wire or cable. 2. Fire-Rated Cables: Use of 2-hour fire-rated fire alarm cables, CEC Types MI and CI, is

permitted. 3. Signaling Line Circuits: Power-limited fire alarm cables may be installed in the same

cable or raceway as signaling line circuits.

C. Wiring within Enclosures: Separate power-limited and non-power-limited conductors as recommended by manufacturer. Install conductors parallel with or at right angles to sides and back of the enclosure. Bundle, lace, and train conductors to terminal points with no excess. Connect conductors that are terminated, spliced, or interrupted in any enclosure associated with the fire alarm system to terminal blocks. Mark each terminal according to the system’s wiring diagrams. Make all connections with approved crimp-on terminal spade lugs, pressure-type terminal blocks, or lug connectors.

D. Cable Taps: Use numbered terminal strips in junction, pull, and outlet boxes, cabinets, or equipment enclosures where circuit connections are made.

E. Color-Coding: Color-code fire alarm conductors differently from the normal building power wiring.

Use one color-code for alarm circuit wiring and a different color-code for supervisory circuits. Color-code audible alarm-indicating circuits differently from alarm-initiating circuits. Use different colors for visible alarm-indicating devices. Paint fire alarm system junction boxes and covers red.

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F. Risers: Install at least two vertical cable risers to serve the fire alarm system. Separate risers in close proximity to each other with a minimum 1-hour rated wall, so the loss of one riser does not prevent the receipt of transmission of signals from other floors or zones.

G. Wiring to Remote Alarm Transmitting Device: 1-inch (25-mm) conduit between the FACP and the transmitter. Install number of conductors and electrical supervision for connecting wiring as needed to suit monitoring function.

H. Cables shall not be supported by any temporary building structure such as conduit, duct work, water pipes, T-bar ceiling, and/or support wires.

I. Cables shall be supported above the ceiling at a maximum distance of 6 feet. All cable ties above

the ceiling shall be plenum rated. All cables shall be neatly bundled and supported.

3.3 IDENTIFICATION

A. Identify system components, wiring, and terminals according to Section 260100 ELECTRICAL REQUIREMENTS.

B. Install instructions frame in a location visible from the FACP.

C. Paint power-supply disconnect switch red and label ''FIRE ALARM''.

3.4 GROUNDING

A. Ground the FACP and associated circuits; comply with IEEE 1100. Install a ground wire from main service ground to the FACP.


A. Manufacturer’s Field Service: Engage a factory-authorized service representative to inspect, test, and adjust field-assembled components and equipment installation, including connections, and to assist in field testing. Report results in writing.

B. Testing Agency: Owner will engage a qualified testing and inspecting agency to perform field tests and inspections and prepare test reports.

C. Perform the following field tests and inspections and prepare test reports:

1. Before requesting final approval of the installation, submit a written statement using the form for Record of Completion shown in NFPA 72.

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2. Perform each electrical test and visual and mechanical inspection listed in NFPA 72. Certify compliance with test parameters.

a. Include the existing system in tests and inspections.

3. Visual Inspection: Conduct a visual inspection before any testing. Use as-built drawings and system documentation for the inspection. Indentify improperly located, damaged, or nonfunctional equipment, and correct before beginning tests.

4. Testing: Follow procedure and record results complying with requirements in NFPA 72.

a. Detectors that are outside their marked sensitivity range shall be replaced.

5. Test and inspection Records: Prepare according to NFPA 72, including demonstration of sequences of operation by using the matrix style form in Appendix A in NFPA 72.

END OF SECTION 28 31 12