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大部分标准只显示18AWG 以上的(比如UL507,但其也是摘录NFPA 70),所以等待高手提供22AWG以下的载流量的标准依据,也许是大部分产品的内部引线都有标准规定不低于AWG及其长度的限值,所以可以承受比较大的电流,而对于电源线则需要根据产品的额定参数来选择对应的AWG。
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: [2 } c& X+ m* \NFPA 70 National Electrical Code 都查不到24AWG与22AWG的载流量,可参考以下:
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1 Y9 X' x1 z& l& `*Tinsel cord.
& N- k, U; t2 b# {9 j**Elevator cables only.
2 Z" \' H9 a3 L0 z***7 amperes for elevator cables only; 2 amperes for other types.& M/ g; i6 }3 \. r' h4 w. O
+The allowable currents under Column A apply to 3-conductor cords and other multiconductor cords6 [2 M. r4 A5 W7 v8 g
connected to utilization equipment so that only 3 conductors are current-carrying. The allowable currents
1 X( S, c9 f* tunder Column B apply to 2-conductor cords and other multiconductor cords connected to utilization equipment/ o: w! w7 w$ f3 s
so that only 2 conductors are current carrying.
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