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4.1.4.7 The connection of an accessible part to live parts, including a supply conductor, to facilitate the
7 @3 D# y$ x2 j, k2 f: R$ a4 j) T8 Wdischarge of static electricity shall comply with the following:
# _0 b) A8 `; D3 Ma) a minimum of two resistors connected in series shall be employed;
`, ?# K1 `! k+ G& \" pb) the resistors shall comply with the applicable requirements in UL 1676, and CSA IEC E65-
* }& H3 z- v! R4 ?1 r94-CAN;
& S0 d3 r k/ s2 V; cc) for the tests described in Clauses 5.3, 5.4, 5.5, and 6.12, one resistor at a time is to be
9 z1 | t. X4 ]1 u5 o$ d9 gshorted; and# j& |) k- l3 [" A, a" V
d) for the test described in Clauses 5.11 and 6.13, as applicable, the lead of the resistor% u; w% z( S; x; |
connected to the accessible part is to be disconnected.
^( H) i1 H5 d" [. B! FTo determine compliance with the remaining requirements in this Standard, the resistors and associated
, w3 D+ m3 o" p/ ?1 h$ @circuitry shall be investigated as live parts. The lead of the resistor connected to the accessible parts shall
! ]% ~" r& I7 ~' C& W+ ^be investigated as a dead metal part.
6 ?4 ~9 v* a9 h
7 c2 }" K% {8 g. m* v x" V( Y- m7 ~1 [8 C; A! C1 O6 y
4.5 Current-carrying parts
l$ J1 n3 x6 L- r6 I4.5.1 A current-carrying part shall be of | silver, copper, a copper alloy, stainless steel or other similar metal |
acceptable for the application.
: e+ D4 h; D8 l4.5.2 Ordinary iron or steel shall not be used as a current-carrying part.
. o; a0 F: J! QException: Ordinary iron or steel provided with a corrosion-resistant coating may be used for a
7 a% g% s- l' F! ?' n/ qcurrent-carrying part if acceptable in accordance with Clause 3.1. |
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