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ASTM B399 Aluminum-Alloy 6201-T81 Concentric-Lay-Stranded Conductors Standard
Standard Overview
ASTM B399 specifies the requirements for 6201-T81 aluminum alloy concentric-lay-stranded conductors used for electrical applications. The standard defines the requirements for conductor materials, construction, dimensions, mechanical strength, and electrical performance.
It is mainly applied to AAAC (All Aluminium Alloy Conductor) used in overhead power transmission and distribution systems where higher mechanical strength and improved corrosion resistance are required.
Key Requirements
Conductors made from 6201-T81 aluminum alloy wires
Concentric stranded construction with aluminum alloy wires
Higher tensile strength compared with pure aluminum conductors
Defined requirements for conductor diameter, resistance, and mechanical properties
Applications
Used for overhead distribution lines, transmission networks, coastal areas, and projects requiring improved mechanical strength and corrosion resistance.
Related Standards
ASTM B398 — Aluminum-Alloy 6201-T81 wire for electrical purposes
IEC 61089 — Round wire concentric lay stranded overhead electrical conductors
EN 50182 — Conductors for overhead electrical lines
ASTM B231 — Aluminum 1350 concentric-lay-stranded conductors
ASTM B232 — Concentric-lay-stranded aluminum conductors, aluminum-clad or steel reinforced
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