" o' q ~; c' v5.2 Metal & a* v/ d) ?$ U( m1 W! ~8 H0 m4 } j5.2.1 A solid or stranded conductor shall not be used where subjected to any temperature that exceeds9 e- m% i5 b! C8 h/ z
that shown for the metal as indicated in the third column of Table 5.2. The metal shall comply with the+ Z$ Q( T" U/ B
applicable ASTM specification, when specified, as indicated in Table 5.2. - \3 d3 v/ W& D; Y, p0 j+ t) b . J" @- t3 ]- V0 E 5 `# d, S! h, v8 A$ EANSI/ASTM B 3,ANSI/ASTM B 33等在PAGE页中找不到相关字样作者: xiaoxiangtongzi 时间: 2009-8-19 09:22
UL758 的5.1里已经规定了。 * o5 Y z$ `/ `4 ]绞合导体中的单支线不要求符合某一美国线规或者其他标准线规尺寸。 ) C0 P/ \0 G& Z: M0 k) ^The individual wires used in making up a stranded conductor are not required to correspond to any particular AWG or other standard gauge size. b- q! H4 {0 |9 v( O) F同样在5.7.3条款又有说明。 . N3 ^) n3 e0 ^+ z8 v& ^ 8 q! w' N" {4 P9 ]关于ASTM B类的导体直径,在UL1581的表20.4有参考的。 4 H# ^5 t& ?- e+ e0 u(圆形同心交合导体直径)# b9 G5 @! I4 s- i% B