ASTM B786次级绝缘用19股单绞捻1350型铝导线
日期:2012-02-08 12:10
aluminum alloys wires in tempers 0 and H1X or H2X are permitted. These conductors shall be constructed with a central core wire surrounded by two layers of helically laid wires, resulting in an outer diameter equal to the compressed-stranded equivalent conductors.
Note 1For the purpose of this specification, combination unilay conductor is defined as follows: a central core wire surrounded by a layer of six helically laid wires of the same diameter as the core wire with a helically laid outer
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09/15 13:49