ASTM B784 绝缘电缆用改进的同芯绞捻铜导线标准规范
日期:2012-02-08 10:03
ASTM B 784 Standard Specification for Modified Concentric-Lay-Stranded Copper Conductors for Use in Insulated Electrical Cables
ASTM B784 绝缘电缆用改进的同芯绞捻铜导线标准规范
This specification covers bare modified concentric-lay-stranded conductors made from round copper wires, either uncoated or coated with tin, lead, or lead alloy for general use in insulated electrical cables. These conductors shall be constructed with a central core consisting of not more than seven wires, surrounded by o
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