我谈一下我的想法:: `1 \$ Q, Y( a6 a
1.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.6 X l# J- P; E9 W$ D2 v4 q9 P
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.' J9 p' E- N' @9 T
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. 8 w7 f$ f& @2 s7 e' @3 v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. % S' Y9 V3 ^) k诸位意下如何?
本帖最后由 AASTAR 于 2011-1-31 19:56 编辑 " x% j( y- Z( v: W& v # X8 r+ W$ X" v" w1 X( l4 P30-400 Wiring of luminaires5 G+ F' |$ f! H2 |
All electrical wiring on or within a luminaire shall be ! s( B3 ~- a1 Q6 D(a) neatly arranged without excess wiring;! l* c. @7 D! b8 ~0 Z
(b) not exposed to mechanical injury; and1 X6 |: K# u% k. @3 d& m1 x" M- a
(c) arranged so that it is not subjected to temperatures above those for which it is rated.( _$ N+ \( j# u+ X9 C
30-402 Colour coding# y6 a& k" @3 `: N$ T# V
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.; c3 R! J. V" a' d
30-404 Conductor insulation7 t; n8 n1 v. ]4 A- q& ?% i: G9 Z
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.* L; F v' H7 n* y2 N0 t
30-408 Wiring of ceiling outlet boxes / b: V" r5 m! G(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.; m; g9 C8 _1 n+ g1 e( S
(2) For purposes of compliance with this Rule, the ampacity of 90 °C wire shall be limited to the ampacity of 60 °C wire.