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9 n3 a3 N( A3 l0 G& d% G
5 X9 `* h1 T% h: R' B7 h | Reduction of clearance and creepage distance4 N3 v6 B0 P8 k" K
| 54; V" l8 ^2 u! B
| 60601-1(ed.2);am1;am2) ]: M* @/ R3 _5 P) Z1 c3 _( D
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/ x5 @+ x1 F% t+ U1 [3 D* }# y4 uStandard(s)- (year and edition):
# c5 G8 N" X2 ^4 I8 mIEC 60601-1:1988+A1 +A26 B; @( y+ m+ G) E3 G( e& ]
Sub clause(s):1 ?( q* d' }/ Y& Z+ y* ~$ [8 @
54
! t }/ O; D! X4 C, B. z+ I' KSheet n°: 535
; t9 l( m8 u: HSubject:: R0 o% W$ O% _ s k4 K
Reduction of clearance and
5 I8 n4 |' h4 o- n$ ]creepage distances1 l0 g' {9 @% `, d, V
Key words:: Z0 V# N# I ]4 p7 J/ Q
Clearance, creepage, reduction,) q0 k5 U4 s; _+ }5 g
tracking resistance
& i5 Y' i- I7 u9 ~! U6 wDecision taken at the 40th. `; i, @6 Y& J: e
meeting 20034 g- \1 k- V+ d( e8 m9 _$ j$ g
Question:
; s' n! D+ o4 QIs it permitted to reduce the creepage and clearance requirements of clause 57.10 based on evidence that. O9 o) _0 y0 o0 ]- h
the material being assessed has a high resistivity to tracking?
3 M! e! K4 `6 Q0 HIf it is permitted, what IEC Publication should be used as a guideline in determining the permitted8 g% Z% w& {/ h8 D% p2 B8 D, A
reduced creepage and clearance distances?8 o1 K) {* v! \ A
Decision:
: t/ K$ P) M( W% _2 z/ L5 v# D1 |This edition of the standard does not allow reduction in clearance and creepage distance.
" ]* v2 \1 g( j9 x6 a0 ?" j" |* qExplanatory notes:
: j" l% [" l- R. }" HThis problem will be transferred to SC62A/WG14 to make a recommendation to the 2nd edition do deal
8 X: s6 V% u8 mwith this issue. The 3rd edition will address this issue.0 I0 W5 L! z& h* I8 F4 \& U
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发表于 2012-9-19 15:47
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