Reduction of clearance and creepage distance , U6 x4 z, G9 t! B% X! Q5 U, C- _
54 1 d; I" g# S, v
60601-1(ed.2);am1;am2& |" ]2 L9 T; I! T
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2 D. F! h3 s4 v7 a! P' X8 MStandard(s)- (year and edition):. A0 c1 b/ I s( }- _8 w8 o9 `: i
IEC 60601-1:1988+A1 +A29 ?2 [( F5 h5 j: G! h' k: }
Sub clause(s): # t4 M5 K/ n+ M! g+ L& `548 G& \$ {5 p/ K: z1 [
Sheet n°: 5355 F, C" {# J" _; X8 f& H3 g
Subject:5 h/ x6 N, t3 K& M+ C4 s8 g
Reduction of clearance and ' b. G$ r9 W! h# v/ t1 F+ |creepage distances , D0 p2 i, y% o" C ~5 LKey words: " T% k) Q+ t8 S; `; w yClearance, creepage, reduction, 6 }. U% N' _; }* C8 ltracking resistance/ A0 k. L) z/ R) e4 a
Decision taken at the 40th $ L% |# z7 p3 t# cmeeting 2003; y5 S4 W/ z! N
Question:# m" V! @4 X% c* w* i: Z( S
Is it permitted to reduce the creepage and clearance requirements of clause 57.10 based on evidence that3 k% O _, Z. L; \: I
the material being assessed has a high resistivity to tracking?' X$ ]2 Q' F J* N, k ]9 ]
If it is permitted, what IEC Publication should be used as a guideline in determining the permitted* R9 t) n6 v6 h' I" x
reduced creepage and clearance distances?# {' x) i0 _# i/ Q5 O! h/ n
Decision:" o7 ^! v! ]- b( l5 X; F' r
This edition of the standard does not allow reduction in clearance and creepage distance.4 Z& n* E6 W, ~- p
Explanatory notes:! ?# v3 e7 g1 I# v
This problem will be transferred to SC62A/WG14 to make a recommendation to the 2nd edition do deal5 m) D* Z2 T( d& g+ D9 h
with this issue. The 3rd edition will address this issue. $ r! C/ j$ q' i( v ( {$ D9 F9 D/ f p: \5 S* ~! X: `4 M[attach]76259[/attach]5 j/ f; X) i& F) W2 D1 G
