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+ m" O4 n* r0 H% Z | Reduction of clearance and creepage distance7 N( z; a; k) \1 b6 t
| 54+ H+ u9 X% T8 x: R' `- Z
| 60601-1(ed.2);am1;am2
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' f: N3 a/ N# iStandard(s)- (year and edition):
' u& Q1 s; O: Z4 ^. K: JIEC 60601-1:1988+A1 +A2
) @7 @ A, [* W2 y0 P9 RSub clause(s):
! r1 O4 n$ A0 E! k# c+ U+ W$ @54
. l6 E' |7 Y4 c6 J8 a7 @4 \Sheet n°: 5357 f. p: p0 `- Y) W! l; I5 r
Subject:! k: C% D: b k* Q5 G
Reduction of clearance and8 z; F9 [4 q, l. Z" ^
creepage distances- c% ?+ T! {9 c6 n$ q
Key words:! ?6 ?5 |, d4 @2 h" M0 U8 X
Clearance, creepage, reduction,
9 P }$ \$ }$ `: T2 ftracking resistance+ w8 F, Q8 k3 D4 x+ i
Decision taken at the 40th
! Q; e4 K' ]5 tmeeting 2003- D: ?: r; M: o# z7 @* c; L
Question:, [: Z: ]& z7 r) U' t& O. Z- E
Is it permitted to reduce the creepage and clearance requirements of clause 57.10 based on evidence that1 G6 b) v+ O* M
the material being assessed has a high resistivity to tracking?$ _; b- m4 j9 `6 G7 V' } y
If it is permitted, what IEC Publication should be used as a guideline in determining the permitted
1 U2 Z5 U$ g- e c1 Qreduced creepage and clearance distances?3 v4 V+ R# F1 ]8 c
Decision:
- G* T5 n" A* l# S g$ I, O3 DThis edition of the standard does not allow reduction in clearance and creepage distance.- Z: y( M( w4 x' G8 c" U% v
Explanatory notes:
, d6 t2 q$ S, W! z! n3 Q5 bThis problem will be transferred to SC62A/WG14 to make a recommendation to the 2nd edition do deal
: T- {+ m! H7 P' o) D2 e3 `+ c( ~with this issue. The 3rd edition will address this issue.
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发表于 2012-9-19 15:47
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