ASTM B399/B399M-23

Podrobné informace

Označení: ASTM B399/B399M-23

Datum vydání: 01.04.2023

Stran: 6

Země: Americká technická norma

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Anotace

This specification covers concentric-lay-stranded conductors, made from round aluminum-alloy 6201-T81 (hard: solution heat-treated, cold worked, and then artificially aged) wires, for use for electrical purposes. These conductors shall be constructed with a central core surrounded by one or more layers of helically laid wires. Conductors are classified as follows: Class AA (for bare conductors usually used in overhead lines) and Class A ( for conductors to be covered with weather resistant materials). The concentric-lay-stranded aluminum-alloy 6201 conductors sized to have diameter equal to ACSR, Class AA, and class A shall conform to the described construction requirements. The maximum electrical resistance of a unit length of stranded conductor shall not exceed the required nominal DC resistance. The concentric-lay-stranded aluminum-alloy 6201 conductors sized by standard areas, Class AA, and Class A shall conform to the described construction requirements. Minimum distance between joints in the complex and rating factors shall be described.


Keywords:
aluminum alloy conductors, aluminum electrical conductor, concentric-lay-stranded conductors, electrical conductor, electrical conductor-aluminum, stranded conductors,, ICS Number Code 29.240.20 (Power transmission and distribution lines)