本帖最后由 AASTAR 于 2011-1-31 19:58 编辑 : Z/ e* r/ n% `9 l1 v1 K
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you think you are a smart ***, you want to help, you got to do sth instead of playing/ A* P$ S l( \
trick.
我谈一下我的想法: 8 m' |! s# N' n% Y1.利用这个论坛讨论一些技术问题, 便于大家相互学习,共同提高. ; O' N0 d. o' |2.展示一下我们华人电工中的精英力量,通过树立榜样,使大家建立学习电工技术的积极性和自信心. L# P% }( r+ a* z
3.闻道有先后,术业有专攻.抵制抬高自己,诋毁别人的作风;杜绝华人电工的农民习气,统一认识,取长补短. $ l/ D6 U! a, l' S- a1 e5 t我想所有的华人电工,能够暂时放弃追求功利的心态,转而认真学习专业技术,将来真正形成了华人的Journeyman/woman队伍,善莫大焉. 0 y% K2 W, |7 W4 P' Z诸位意下如何?
本帖最后由 AASTAR 于 2011-1-31 19:56 编辑 m/ |' G# R, o! m/ C/ X/ [0 @
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30-400 Wiring of luminaires8 I1 I/ e7 @7 @# u1 D
All electrical wiring on or within a luminaire shall be / ~6 B& @) I7 N9 \/ u! X$ N(a) neatly arranged without excess wiring; & \1 `/ ?. Q. Q9 E7 P(b) not exposed to mechanical injury; and . y! L5 O5 ~+ ~3 C0 o; Q! k: t(c) arranged so that it is not subjected to temperatures above those for which it is rated.0 Q c# L" P0 a. U. a2 d- a0 @
30-402 Colour coding 9 _& i% D3 {( R2 @/ ?% RNotwithstanding 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.4 Q; u6 e- B' o3 u: v) h
30-404 Conductor insulation " e* d2 n. ^& ]3 |& Y; b2 mLuminaires 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.& k3 o2 O& y: G: D; e: x3 U
30-408 Wiring of ceiling outlet boxes ' s/ N2 f. a/ f2 M: }0 d; j(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. 9 ^+ H' @5 O1 p(2) For purposes of compliance with this Rule, the ampacity of 90 °C wire shall be limited to the ampacity of 60 °C wire.