ASTM BS All Aluminium Conductor For Overhead Transmission Line

ASTM BS All Aluminium Conductor For Overhead Transmission Line

Description:

The bare conductors:AAC, AAAC,ACSR, AACSR,ACAR, and Galvanized steel wire, are used in overhead electrical power transmission and distribution lines with various grade voltage.
Construction: Bare aluminum alloy 1350-H19 wires, concentrically stranded around a Class A galvanized coated steel core wire.
ACSR consists of a galvanized steel core of 1 wire, 7 wires, 19 wires etc. surrounded by concentric layers of aluminum wire.

Construction

All Aluminum-Alloy Conductors (AAAC) is a concentric-lay-stranded conductor consisting of aluminum-alloy wires available in both single layer and multi-layer constructions.
Standard 6201-T81 high strength aluminum conductors, conforming to ASTM Specification B-399, are concentric-lay- stranded, similar in construction and appearance to 1350 grade aluminum conductors. Standard 6201 alloy conductors are similar to other alloy conductors commercially known as Ardival, Aldrey or Almelec. They were developed to fill the need for an economical conductor for overhead applications requiring higher strength than that obtainable with 1350 grade aluminum conductors, but without a steel core. The DC resistance at 20°C of the 6201-T81 conductors and of the standard ACSRs of the same diameter are approximately the same. Conductors of the 6201-T81 alloys are harder and, therefore, have a greater resistance to abrasion than conductors of 1350-H19 grade aluminum.

Features

• High strength to weight ratio

• Better sag characteristics

• Improved electrical properties

• Excellent resistance to corrosion

Application

Aluminium Conductors are predominantly used in Overhead Line applications and for primary and secondary power distribution.
All Aluminum-Alloy Conductors (AAAC) can be used in Medium, High and Extra-High voltage transmission lines. AAAC offers better sag performance due to the high strength-to-weight ratio provided by the aluminum-alloy. In addition, AAAC provides a higher corrosion resistance than ACSR conductors.

Specification

(1) all aluminium conductor (AAC)
(2) all aluminimum alloy conductor(AAAC)
(3) aluminum conductor steel reinforced (ACSR)
(4) anti-corrosion type ACSR
(5) aluminimum conductor aluminimum clad steel reinforced(ACSR/AW)
(6)rear earth aluminimum conductor steel reinforced(ACSR/RE)
(7)aluminimum conductor aluminimum alloy reinforced(ACAR)