本帖最后由 AASTAR 于 2011-1-31 19:58 编辑 $ ?) l1 ~8 w( F* i5 V8 [/ {' c) X8 Y2 _# o
you think you are a smart ***, you want to help, you got to do sth instead of playing 7 a: s& d( e/ r6 N6 \# d; dtrick.
我谈一下我的想法: 9 d/ Y) O8 d. R0 i1.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. * a% `2 i. y, m) `; n) C4 u D2.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. - Y% t+ U2 V P# n# m; V! y# l2 {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. 9 W f& o9 N2 W3 y- v. m4 f; H: N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.7 A& U7 {* ]0 J, H* f% I
诸位意下如何?
本帖最后由 AASTAR 于 2011-1-31 19:56 编辑 ; E% p+ \9 N! O& g6 k: s3 J # p. `( ~* g2 A2 d30-400 Wiring of luminaires % K1 u" I0 f# D/ j( R' F8 fAll electrical wiring on or within a luminaire shall be " B/ V$ o8 r+ y2 g9 m9 U" ^(a) neatly arranged without excess wiring; , I! H) ~+ z9 C X2 S(b) not exposed to mechanical injury; and 7 n, K/ c( e4 P) P(c) arranged so that it is not subjected to temperatures above those for which it is rated. & o o4 Y2 o8 X! F8 J' n30-402 Colour coding0 I7 w1 l5 ]9 _& b9 m! p
Notwithstanding 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. % \$ h+ L/ o1 H; `. ~0 s$ H/ T30-404 Conductor insulation 5 t% U! I4 Q- x8 C jLuminaires 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. + V/ n) I# F. x- }1 P: U; {30-408 Wiring of ceiling outlet boxes4 r9 |2 ^( _7 m3 H c
(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. : V" k b0 e! O" O. ~: G(2) For purposes of compliance with this Rule, the ampacity of 90 °C wire shall be limited to the ampacity of 60 °C wire.