|
|
4.1.4.7 The connection of an accessible part to live parts, including a supply conductor, to facilitate the
- a# r$ b! p9 @+ ~! _+ D; ]discharge of static electricity shall comply with the following:- o& ?% c1 F" l) A+ z6 K9 F/ O
a) a minimum of two resistors connected in series shall be employed;
: d, T& L. F* }: S! lb) the resistors shall comply with the applicable requirements in UL 1676, and CSA IEC E65-- `0 B; R2 o7 k$ |; p0 l
94-CAN;
+ ^7 g; \4 U! Q6 O2 r# Kc) for the tests described in Clauses 5.3, 5.4, 5.5, and 6.12, one resistor at a time is to be
* g- b/ \( I# G5 ]& N( Eshorted; and
8 _, k' P, _! {) Ad) for the test described in Clauses 5.11 and 6.13, as applicable, the lead of the resistor
, [1 @; s% @/ E- wconnected to the accessible part is to be disconnected.
: [- w7 s! C" Z! U) L7 ETo determine compliance with the remaining requirements in this Standard, the resistors and associated
- I$ e) i/ Z% p& Hcircuitry shall be investigated as live parts. The lead of the resistor connected to the accessible parts shall
2 K. f# s# T6 N6 |be investigated as a dead metal part.
0 T* I9 L2 H. x3 ~; g s' L# y) R* q( ?- J7 z( T5 I
+ k. N# L n: p* w. b3 x4.5 Current-carrying parts
0 N; V" k6 p* S. ^( A8 ]4.5.1 A current-carrying part shall be of | silver, copper, a copper alloy, stainless steel or other similar metal |
acceptable for the application.
' V) e) J' T2 v% e, {3 w; \4.5.2 Ordinary iron or steel shall not be used as a current-carrying part./ H. o- S3 i3 w8 A c C& K7 d
Exception: Ordinary iron or steel provided with a corrosion-resistant coating may be used for a
" [" x& T" b0 M5 V' ~current-carrying part if acceptable in accordance with Clause 3.1. |
|
/2 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2007-8-29 23:38
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
发表于 2007-8-30 06:49
发表于 2007-8-30 08:38
