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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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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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*Tinsel cord.* i9 {7 D+ y2 ~ I0 B0 L5 @
**Elevator cables only.
8 Z5 Q/ S& _; [: Q***7 amperes for elevator cables only; 2 amperes for other types.2 `( X% c0 w! |- A' J; a
+The allowable currents under Column A apply to 3-conductor cords and other multiconductor cords
8 h4 C0 ~* \. t5 R& r% @+ iconnected to utilization equipment so that only 3 conductors are current-carrying. The allowable currents; i4 f7 d) G( d: q5 X# A! j7 t, I
under Column B apply to 2-conductor cords and other multiconductor cords connected to utilization equipment0 y2 r& }8 Q V. N% m5 ?- W
so that only 2 conductors are current carrying.1 ^' p" [" N1 b
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