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|  DSH 4336 D1 o( s) o( Q% T8 }
# E1 g! G# y. M, }- l. i8 S- j
| Components between primary and secondary1 c( `! l2 V+ _5 E! v
| 57.6
* [2 Y5 u6 J3 A4 B+ G) r, G | 60601-1(ed.2);am1;am2
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4 V: ?$ m- a7 ~Standard(s)- (year and edition):+ j9 @8 n1 g& D4 M) O' e
IEC 60601-1:1988 Am1+Am2' e- l; [: m, F+ d
Sub clause(s): 57.6
( o+ e2 _# {9 { |+ b: cSheet n°: DSH-433* C; J9 `0 e: j% w! F/ I( Y* `
Subject: Components between primary and secondary% ^4 e+ Q: a& f. {
Key words: Reinforced, insulation, bridging % K9 c8 |* B0 s* h2 r7 V
Confirmed by CTL at its 39th meeting, in Cologne
, x5 J+ v; a+ T/ n. F% ZQuestion:
3 K) n* a( a7 A" B, PDOUBLE INSULATION and REINFORCED INSULATION are defined in subclasses 2.3.4 and 2.3.7.8 u. q9 u3 d$ i1 N
Relevant requirements are in sub-clause 20 (Dielectric strength) and sub-clause 57.10 (CREEPAGE2 @! Z/ S* d& R4 g5 _6 z$ s
DISTANCES and AIR CLEARANCES). Sometimes it is necessary to bridge the insulation by
, {- J G0 V$ v8 f/ u! R. @components (e.g. opto-couplers, capacitors). What are the requirements for these components?. W% ?0 m( |4 I" V9 L
Decision:$ z4 H }1 s* c' x1 P E# S
Capacitors according to IEC 60384-14 type Y1 can be used to bridge DOUBLE or REINFORCED
2 A# H( W5 V6 s0 S# k5 R$ sINSULATION.
9 }! R3 p: d8 |& B; iStep by step a list with references to standards for components with requirements concerning reliability
8 g- K& h' b: ` I6 zshall be established.
; d9 c$ R7 b( v$ ^5 m0 P& j5 w! d3 P0 y$ z5 g% {6 H
1 L D3 n$ L; o8 B+ F, K! B u( }
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发表于 2012-11-5 10:19
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