BARE ALUMUNIUM CONDUCTOR CABLE

Feature
The conductors are applied for overhead power transmission purposes, medium tension overhead systems and distribution networks.

CONSTRUCTION

Conductor
Seven of more aluminium wires of the same nominal diameter are twisted together in concentric layers. When conductor consists of more than one layer, successive layers are twisted in opposite directions which is defined as right-hand lay (Z) or left-hand lay (S).

All Aluminium Conductor (AAC)
The conductor shall be constructed of hard drawn aluminium wires with 99,45% minimum purity of aluminium. The maximum resistivity at 20^o C is 0.028264 ohm.mm²/m.

All Aluminium Alloy Conductor (AAAC)
The conductor shall be constructed of hard drawn aluminium alloy wires which consists of: minimum 97,28% Aluminium
             ± 0,5 % Magnesium
             ± 0 5 % Silicon
The maximum resistivity at 20° C is 0.0328 ohm.mm²/m

Aluminium Conductor Steel Reinforced (ACSR)
The conductor shall be constructed of All Aluminium Conductor (AAC) and one or stranded seven Galvanized Steel Wires as a core, together built up in concentric layers.
The galvanized steel wires which is used as a core shall be heat treatment and Zinc coated uniformly by using the method of hot dipped or electrolyte zinc coated.

Aluminium-Clad Steel Core Thermal Resistant Aluminium Alloy (TACSR/AS)
The conductor shall be constructed of Thermal Resistant Aluminium Alloy wires (TAL wires) and stranded seven Aluminium-clad Steel wires (AS wires) as a core, together built up in concentric layers. The tensile strength of TAL wire after heating 230° C for one hour shall be more 90% than the value before heating. And the conductivity is more of 60% IACS (International Annealed Copper Standard). The conductivity of AS wire is 20.3% - 23.0% IACS.

Type :

• AAC (All Aluminium Conductor)
  HAL (Hard-drawn Aluminium Stranded Conductor)
• AAAC (All Aluminium Alloy Conductor)
• ACSR (Aluminium Conductor Steel Reinforced)
• TACSR/AS (Aluminium-clad Steel Core Thermal Resistant Aluminium Alloy)

Specification :
SPLN 41- 6:1981 for AAC
JIS C 3109-1994 for HAL
SPLN 41- 8:1981 for AAAC
SPLN 41- 7:1981 for ACSR
JFEPC A 242:1977 for TACSR/AS