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4.1.4.7 The connection of an accessible part to live parts, including a supply conductor, to facilitate the1 r: n; @- u0 F/ i; N
discharge of static electricity shall comply with the following:' ` \' a3 l3 [' E9 w3 |: _- C
a) a minimum of two resistors connected in series shall be employed;
5 N. b$ H6 D9 s6 T" vb) the resistors shall comply with the applicable requirements in UL 1676, and CSA IEC E65-
: ]; w* z8 o4 R; W# c: ^4 e94-CAN;8 T! i3 q$ E; ? N* `" 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. C) i1 O. i; t
shorted; and
3 {! [: o% Z% x3 d8 nd) for the test described in Clauses 5.11 and 6.13, as applicable, the lead of the resistor
! u/ |( t; ?( a# G U( B& A1 `connected to the accessible part is to be disconnected.
' z4 i' k2 q$ B8 |To determine compliance with the remaining requirements in this Standard, the resistors and associated
! k7 q# O( m& f! ?5 lcircuitry shall be investigated as live parts. The lead of the resistor connected to the accessible parts shall
& T% ^; h9 _6 e# B& Rbe investigated as a dead metal part.8 p& M! H& T7 Y# L# z, r
: e& {5 O: R/ \; G+ v, P
! k$ A* Q8 N5 f% V4 ]7 M9 [# B" B0 Z3 N& h4.5 Current-carrying parts
2 A( Y, }% ~5 d& f+ a* @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.7 N3 V9 ?/ S7 D' v; {1 i5 b$ b+ T. n
4.5.2 Ordinary iron or steel shall not be used as a current-carrying part.- b3 [9 ~& n* A
Exception: Ordinary iron or steel provided with a corrosion-resistant coating may be used for a
& F: x# y1 ]9 K4 hcurrent-carrying part if acceptable in accordance with Clause 3.1. |
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