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|  DSH 433 }" M% m' S! e, f( U; O( Y
7 H: W, ?5 g0 T$ q7 d3 p" o | Components between primary and secondary7 \* d5 \/ g* l, C$ h/ P( R% K' t
| 57.69 }4 [- f! w5 O. Q1 v3 ?
| 60601-1(ed.2);am1;am2
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: a, j3 R8 F4 s! }0 u U6 R IStandard(s)- (year and edition):3 `& n. O; [1 I" r
IEC 60601-1:1988 Am1+Am2
, H- ^: T6 D8 @Sub clause(s): 57.6! x0 t b0 r1 u7 }1 e
Sheet n°: DSH-4333 r- l" `' |% A. h3 o
Subject: Components between primary and secondary
0 L, |' n; e+ L: \1 T% @ dKey words: Reinforced, insulation, bridging 1 ~* Z2 U: y6 v7 j* P* P/ V
Confirmed by CTL at its 39th meeting, in Cologne% `/ n! G7 A$ j/ |) f: S
Question:2 Y) c$ `/ }' h
DOUBLE INSULATION and REINFORCED INSULATION are defined in subclasses 2.3.4 and 2.3.7.
7 e' ^2 g* P$ _9 \% v$ dRelevant requirements are in sub-clause 20 (Dielectric strength) and sub-clause 57.10 (CREEPAGE
2 \- `5 K! r5 |4 t) o cDISTANCES and AIR CLEARANCES). Sometimes it is necessary to bridge the insulation by
+ A" G [6 M( u, \: }" Xcomponents (e.g. opto-couplers, capacitors). What are the requirements for these components?
+ a/ w( @7 d& c% ]# VDecision:
) A+ h" U% m& W O5 SCapacitors according to IEC 60384-14 type Y1 can be used to bridge DOUBLE or REINFORCED2 T1 U2 o' a1 U
INSULATION.
+ a2 x9 G* b" w) f- x* V0 T; nStep by step a list with references to standards for components with requirements concerning reliability
8 P/ D' \& G# qshall be established./ v% t2 D9 l' j( b; l2 t/ o }/ I. Q
1 M N. j) O k7 `( R2 B! n* v! n4 s2 v. S8 X4 q% J
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发表于 2012-11-5 10:19
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