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|
4.1.4.7 The connection of an accessible part to live parts, including a supply conductor, to facilitate the
% S* R l$ ?- c/ A+ w7 y! ] Sdischarge of static electricity shall comply with the following:
$ [) r0 `9 A' D# Xa) a minimum of two resistors connected in series shall be employed;1 D1 A5 r0 n/ x7 A2 L
b) the resistors shall comply with the applicable requirements in UL 1676, and CSA IEC E65-5 Y6 `' q/ v9 X) r Z$ s
94-CAN;" ]! r! [' S/ v+ b8 B6 p
c) for the tests described in Clauses 5.3, 5.4, 5.5, and 6.12, one resistor at a time is to be# y# u1 `( f v- r5 G8 z- s- q7 e
shorted; and8 b4 j$ i2 v' \6 x
d) for the test described in Clauses 5.11 and 6.13, as applicable, the lead of the resistor! m- ?! @" c" s% F2 z& s
connected to the accessible part is to be disconnected.
# e/ h, H9 Q; kTo determine compliance with the remaining requirements in this Standard, the resistors and associated; h9 M/ U5 O& C2 M
circuitry shall be investigated as live parts. The lead of the resistor connected to the accessible parts shall
8 {) y' _1 r5 h" zbe investigated as a dead metal part.8 f* x* a* ]1 B& N. Q4 q k
* a3 @- { K! W" N' g3 u
. N0 _; Q L$ X4 r4 Z4.5 Current-carrying parts1 p/ w6 U: I( R8 l" X! s8 _
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.
& Z/ @5 e2 W E$ G$ s/ \4.5.2 Ordinary iron or steel shall not be used as a current-carrying part.
6 ]5 S5 ^9 F4 h+ VException: Ordinary iron or steel provided with a corrosion-resistant coating may be used for a5 q, q$ m8 ~# n5 V5 Q4 w
current-carrying part if acceptable in accordance with Clause 3.1. |
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