|
|
4.1.4.7 The connection of an accessible part to live parts, including a supply conductor, to facilitate the
1 U# V6 |6 ?- r% zdischarge of static electricity shall comply with the following:; _" ]5 T2 N* m4 l! R6 U. t" j
a) a minimum of two resistors connected in series shall be employed;
* Y9 J! k( Q. y" J: R% V( N2 X# c; xb) the resistors shall comply with the applicable requirements in UL 1676, and CSA IEC E65-) p0 s, ^ c, g, F6 I# G( k
94-CAN;4 V; n. B# s3 Q2 Q* X5 ]
c) for the tests described in Clauses 5.3, 5.4, 5.5, and 6.12, one resistor at a time is to be
. X& \! }' E1 |9 g* r* F9 t+ eshorted; and
/ v0 k8 K/ C0 h* {& A6 L( xd) for the test described in Clauses 5.11 and 6.13, as applicable, the lead of the resistor
/ [4 W/ V; _7 \3 i% N$ J: Vconnected to the accessible part is to be disconnected.
& I. X: y# ~7 J! LTo determine compliance with the remaining requirements in this Standard, the resistors and associated5 i/ K. R9 L; A7 X0 K( {
circuitry shall be investigated as live parts. The lead of the resistor connected to the accessible parts shall
: \! ~! ?4 |* dbe investigated as a dead metal part.
5 \6 e7 u) c. \( B( j8 _% F0 I# r4 x
# ?. p8 O; p o# d3 O) Z+ O
4.5 Current-carrying parts
, o# M. j- K( m/ {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.! D+ \4 U! ~& l7 _, r; @
4.5.2 Ordinary iron or steel shall not be used as a current-carrying part.
5 C* p2 B$ W$ S4 K1 aException: Ordinary iron or steel provided with a corrosion-resistant coating may be used for a$ q+ K# D- ^( y6 o+ U. `: g9 k
current-carrying part if acceptable in accordance with Clause 3.1. |
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