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
ed by one or more layers of helically laid wires.
1.2 For the purposes of this specification, conductors are classified as follows (Explanatory Note 1 and Note 2):
1.2.1 Class B ModifiedConductors to be insulated with various materials such as rubber, paper, and crosslink polyethylene.
1.2.2 Class C Modified and Class D ModifiedConductors where greater flexibility is required than is provided by Class B Modified conductors.
1.3 The values stated in inch-pound or SI units are to be regarded separ
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10/28 16:47