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本帖最后由 barondavids 于 2015-7-8 10:58 编辑 8 j. q7 g/ o* U! ?, m
电动小龙人 发表于 2015-7-4 09:01 . l& e6 m: D) P4 y
J哥,如果是安全隔离驱动,之后的线再加个DC 连接器,那么外路线也要满足小于80mm才不受限制么,这么规定只 ...
s: L- b/ V* x. a& D+ B- R( ^0 ~普通灯具,如果是SELV输出电路中的外部线,载流小于2A,不用满足最小0.75mm2要求。
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9 B: Y- ~* I2 I- sExternal cables of Class III luminaires or SELV circuits in luminaires, or those used for SELV
* ]/ p+ C' U6 nconnections between parts of other luminaire types, with a maximum rated current not: ~( T; t! O3 d- E6 U U" q! J8 W5 V
exceeding 2 A, may have a cross-sectional area of less than 0,75 mm2 or 1,0 mm2 , but not) |& O2 x0 L" ]- x" s. w
less than 0,4 mm2, provided that the current-carrying capacity and mechanical properties are( [! o. Q9 {. z& W
adequate. Cables provided with two or more conductors may have a cross sectional area of
. G+ I: k7 e$ n# P" O* deach conductor of minimum 0,2 mm2 if the cable can withstand the normal and short circuit
( `* d0 k+ n# j4 u+ dcurrent provided by the associated control gear. |
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