Description

Technical Parameters

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ACAR Conductor is a concentric-lay-stranded conductor consisting of a stranded aluminum alloy central core with one or more layers of hard drawn stranded aluminum wires. The number of wires of Aluminum 1350 and AlMgSi alloy depends on the cable design. Though the general design comprises a stranded core of AlMgSi alloy strand, in certain cable constructions, the wires of AlMgSi alloy strands can be distributed in layers throughout the Aluminium 1350 strands. The diameters of all wires are the same. Aluminum and aluminum-alloy wires can be mixed in the same layer. When higher capacity and strength for equal weight are prime line considerations, ACAR is the solution over ACSR due to its better strength-to-weight ratio.

Product Parameters

Item	Parameter
Conductor structure	Stranded aluminum alloy central core with one or more layers of hard drawn stranded aluminum wires
Aluminum wire material	Aluminium 1350
Alloy core material	Aluminium-Magnesium-Silicon (AlMgSi) alloy
Wire diameter	All wires are the same diameter
Layer mixing	Aluminum and aluminum-alloy wires can be mixed in the same layer
Core distribution	Generally a stranded AlMgSi alloy core; in certain constructions, AlMgSi alloy strands can be distributed in layers throughout the Aluminium 1350 strands
Main application	Bare overhead transmission conductor, primary or secondary distribution conductor
Compared with ACSR	Better strength-to-weight ratio, higher capacity and strength for equal weight

Standards

American Standard: ASTM B 524
IEC International Standards: IEC 61089

Performance Characteristics

Concentric-lay-stranded conductor, stranded aluminum alloy central core with one or more layers of hard drawn stranded aluminum wires
All wires are the same diameter, aluminum and aluminum-alloy wires can be mixed in the same layer
Number of wires depends on the cable design
Higher capacity and strength for equal weight, better strength-to-weight ratio than ACSR
Can be used as bare overhead transmission conductor or primary or secondary distribution conductor
When higher capacity and strength are prime line considerations, it is the solution over ACSR

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Product Q&A

Q: When the aluminum wires and aluminum alloy wires of ACAR Conductor are mixed in the same layer, how does the stranding process differ from ordinary aluminum stranded conductors?

A: ACAR allows aluminum wires and aluminum alloy wires to be mixed in the same layer, with all wires of the same diameter. During stranding, the wires must be paid off in the designed arrangement order, with aluminum and aluminum alloy wires alternating, to avoid concentrating the same material. Because the two materials have different strengths, the stranding tension should be controlled uniformly to prevent relative slippage caused by differences in elongation during operation.

Q: When the aluminum alloy wires are distributed between layers, how is the arrangement of the outer and inner layers determined?

A: The general design comprises a stranded core of AlMgSi alloy strand, with outer layers of 1350 aluminum wires. In certain cable constructions, the wires of AlMgSi alloy strands can be distributed in layers throughout the Aluminum 1350 strands. The specific arrangement is determined by the cable design. Different arrangements affect the strength distribution and electrical performance of the conductor, so the structural requirements should be specified at the time of ordering.

Q: Does this conductor use the same fittings as ordinary aluminum stranded conductors when connecting?

A: The outer layer is 1350 aluminum wire, so the connection process is basically the same as for ordinary aluminum stranded conductors, using aluminum crimp sleeves and dies. However, if the aluminum alloy wires are distributed between layers or in the outer layer, confirm that the fittings are suitable for aluminum alloy conductors during crimping, to avoid incomplete crimping caused by differences in material hardness.

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