ISO 9001-2008 Certi�ed Company

Registered O�ce :Durable Conductors & CablesOld Power House Road, Solan- 173211(H.P) – India

Manufacturing Unit:Near 66 kv Sub-StationVillage Katha, BaddiHimachal Pradesh

Tel: +91-1792-220670Fax: +91-1792-223029Mail: info@durableconductors.comWeb: www.durableconductors.com

Some of our major clients :

Power Grid Corporationof India Limited

Punjab State PowerCorporation Limited

Punjab State TransmissionCorporation Limited

HPSEB Ltd.(Himachal Pradesh)

DHBVNHaryana

Power TransmissionCorporation of

Uttarakhand LimitedUHBVNLHaryana

“Quality is the best business plan”

Durable Conductors & Cables

BIS 398 Part- IIBIS 398 Part -IVBIS 398 Part - V

Company Pro�leHaving been in this industry for more than 35 years. We are pleased to introduce our status in the manufacturing of AAC, AAAC and ACSR Conductors. We have catered to various organizations in the past including various State Electricity Boards across India, PGCIL, PSPCL, Turnkey Contractors apart from various private organizations. As a company we o�er services that are of the highest standard and at extremely competitive rates. Being one of the leading suppliers of conductors we are recognized for quality and strict adherence to delivery schedule.

MANUFACTURING UNIT :• State of Art infrastructure• Laboratory equipments of highest standards.• A designated quality assurance team that ensures quality from

procurement of raw material to �nal product.• Production Capacity of more than 500 MT/month.

PRODUCTS:Conventional Conductors

All Aluminium Alloy Conductor (AAAC) is formed by several aluminium magnesium silicon wires stranded in concentric layers. All the wires have the same nominal diameter. AAAC Conductor has lesser conductivity than ACSR Conductor.

AAC CONDUCTORCODE NAME SIZE

GNAT

ANT

7/2.21MM

ANT 7/3.10MM

All Aluminium Conductor (AAC) are formed of several wires of aluminium, stranded in concentric layers

Aluminium conductor steel-reinforced (ACSR) is a type of high-capacity, high-strength stranded conductor typically used in overhead power lines. The outer strands are high-purity aluminium, chosen for its excellent conductivity, low weight and low cost.

ACSR CONDUCTORCODE NAME SIZE

MOOSE 520 sq. Mm * 54/7/3.53MM

*Manufacturing all sizes upto 54/7 strand of 400 kV

AAAC CONDUCTORCODE NAME SIZE

DOG 100 sq.mm * 7/4.26 MM

*Manufacturing all sizes upto 7 strand of 33 kV

TYPES

HIGH TEMP EC

GS/MM Steel

CONDUCTIVITY,% IACS

63

…

MIN. TENSILESTRENGTH, MPA

60

1340-1900

20

3-3.5

250

200-250

ELONGATION,% IN 250 MM

MAX. OPERATINGTEMPERATURE DEG C

Introduction :

Aluminium Conductor Steel Supported (ACSS) has unique capabilities for high operating temperature and Better Aeolian vibration resistance. ACSS is a composite Aluminium steel conductor that looks just like conventional ACSR conductor. The di�erence is in the aluminium temper. The aluminium used in ACSS is fully annealed wire (O) whereas the aluminium used in ACSR is fully work hardened (H19).

ACSS conductor meets the requirement of ASTM B856.

HIGH PERFORMANCE CONDUCTORS:High Temperature Low Sag Conductors (HTLS):

Aluminium ConductorSteel Supported (ACSS)

ACSS Aluminium Wires Hi-temp EC:All the above performance advantages derive from the fact that ACSS aluminium wires are annealed and have very low yield strength. Because of this low yield strength, inelastic elongation of the aluminium occurs quite rapidly when tension is applied to ACSS conductor and thereby forcing most of the load to steel core. More importantly these aluminium wires have higher ductility and higher conductivity than the conventional ACSR.

Misch-Metal Steel Core in ACSS:Steel core wire shall be Zinc 5% Aluminium Mischmetal alloy (Galfan) coated/Galvanized steel con�rming to ASTM B 802, B 803, B 498, B957 & B 958

Construction of the conductor:

GS/Mischmetal Coated Steel

High Temperature EC

TYPES

TAL/STAL

UHS Galvanized Steel

CONDUCTIVITY,% IACS

60

…

MIN. TENSILESTRENGTH, MPA

162

1800-1900

1.7

3-3.5

150-210

200

ELONGATION,% IN 250 MM

MAX. OPERATINGTEMPERATURE DEG C

Gap Type Conductor (GTACSR/GZTACSR): GTACSR/GZTACSR has a unique construction with a small gap between the steel core and thermal-resis-tant/Super thermal resistant aluminium alloy layer. The combination of the thermal resistant/Super thermal resistant aluminium alloy and the "Gap construction" provides an excellent sag and current-carrying capacity for which these are used to up-rate existing transmission lines by simply reconductoring phenomenon.

The outer layers are of thermal resistant/Super thermal resistant aluminium alloy & Core materials are UHS GS/MM steel for better strength and other mechanical properties.

Performance Advantage:• Higher Current Carrying Capacity than that of ACSR

• Lower sag at high temperature operation i.e. at double transfer capacity

• Tension at worst conditions same as of ACSR. No modi�cation or reinforcement required in existing structures

• Better performance specially during heavy load conditions

High Temperature Characteristic:As ACSS Hi-temp EC wires are fully annealed and there is no possibility of further annealing by high temperature in services. Hence, there won’t be any strength loss in the aluminium in the high temperature application. The only temperature limitation is that which can cause damage to the coating of the steel core. DCC o�ers misch metal coated/Galvanized steel wire the coating will not damage up to continuous operation of 200°C-250°C.

Performance Advantage:• ACSS can operate continuously at very high temperature without any

detrimental to mechanical properties

• The �nal sag tension properties are not a�ected by long term creep of aluminium

• ACSS has a high capability for damping mechanical oscillation, such as those associated with Aeolian vibration

• ACSS aluminium wire having high conductivity of about 63% IACS whereas the ACSR aluminium wire having the conductivity of only 61% IACS

Ex. Table (X-axis: Temperature in Degree Celsius)(Y-axis: Ampacity in Amperes)