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$ m/ {; ~$ ^: O: O& D2 e9 o$ H0 H7 H! L8 [
| Reduction of clearance and creepage distance/ i: y' o/ f+ S" J
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& i" m; i7 j k | 60601-1(ed.2);am1;am2
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5 a4 M4 l# U" p; V
Standard(s)- (year and edition):
. Y$ G2 G2 |- Z* r3 L$ r3 C3 uIEC 60601-1:1988+A1 +A2
8 `# J( C# n" o% Q9 `1 J" uSub clause(s):4 {' S- b* V( i3 d& o0 _
54
( D: N2 a7 F) q: lSheet n°: 5359 D$ C3 b" d- z- f0 ^
Subject:
% @# T K1 t, B: U- y4 YReduction of clearance and( o4 I' V0 }+ k, z
creepage distances
5 g! ]: l/ D+ b9 WKey words:! F# k: C% r1 l; C: J! e& t! U
Clearance, creepage, reduction,, V4 a5 P9 \% W! A
tracking resistance' h- y9 M( Z! b5 Y* _
Decision taken at the 40th% C% p/ I( R, O' W
meeting 2003
% \) M7 A1 N) M( k; tQuestion:# K- J/ e' w. a8 ^+ V f
Is it permitted to reduce the creepage and clearance requirements of clause 57.10 based on evidence that. j. L& y% ?; j3 ^; Y
the material being assessed has a high resistivity to tracking?
8 h/ |! ^' w* Q/ ~7 C3 m" a2 q$ }' GIf it is permitted, what IEC Publication should be used as a guideline in determining the permitted7 ]" p6 S$ z8 | ~; Z! Q, [
reduced creepage and clearance distances?5 Z" r2 c9 E+ ^* J
Decision:9 T: V* K4 |1 Q7 Y
This edition of the standard does not allow reduction in clearance and creepage distance.3 `: V: S( D& p
Explanatory notes:: O; F7 q" S q& a- y; P' I
This problem will be transferred to SC62A/WG14 to make a recommendation to the 2nd edition do deal
O6 Z& x, q1 T# Hwith this issue. The 3rd edition will address this issue./ g0 E' w3 `. E: l
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发表于 2012-9-19 15:47
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