本帖最后由 AASTAR 于 2011-1-31 19:56 编辑 " Z. i. @: I, Z# v3 o6 H2 R8 H! p1 I3 s- [& t
30-400 Wiring of luminaires & i. P4 W. x$ r! I( |& R& qAll electrical wiring on or within a luminaire shall be% M' x/ P0 z* R& {( l! h
(a) neatly arranged without excess wiring; . s4 U" e: {6 f/ H$ y; S(b) not exposed to mechanical injury; and- A8 u5 N9 h6 N ^& R' \. [
(c) arranged so that it is not subjected to temperatures above those for which it is rated. 3 r2 `' s T' ?5 M) \1 u Q30-402 Colour coding 2 ]5 F" }( T7 e* `( @: o9 HNotwithstanding the requirements of Sections 0, 4, and 10 with regard to the colours used for distinguishing and identifying conductors, a continuous-coloured tracer in the braid of an individual braided conductor shall be permitted for the supply conductors of a luminaire, the colour of the tracer being black, white, and green for the ungrounded, identified, and bonding conductors respectively. 9 ~# S) F8 d; ~; P30-404 Conductor insulation0 E/ B& t% l9 _4 b# q. ~
Luminaires shall be wired with conductors at least No. 18 AWG, having insulation suitable for the voltage and temperatures to which the conductors may be subjected. 6 S2 O9 ~ {3 w6 X3 M4 {4 Q30-408 Wiring of ceiling outlet boxes & z, U% i+ V7 y0 p# t. t9 K(1) Branch circuit conductors having insulation suitable for 90 °C shall be used for wiring of ceiling outlet boxes on which a luminaire is mounted, except for boxes in wet locations where Type NMW or NMWU cables are used. 6 E3 K$ [3 \$ @0 y(2) For purposes of compliance with this Rule, the ampacity of 90 °C wire shall be limited to the ampacity of 60 °C wire.
本帖最后由 任大先生 于 2011-1-31 20:35 编辑 4 G5 n. m, h. T8 I9 K2 G $ |8 b1 g& K& u. i# o我就说华人里面有高人, yzdzhg 兄扬扬洒洒一大篇.说出了吸顶灯一要害:温度对导线绝缘的影响,并且给出了解决方案.还点出了布线时要注意的方面,针对顶层,给我们深入讨论开了入口.好家伙,厉害!....大家请继续.另外,看得贯兄可能小看这道题了,有机关...