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|  DSH 433! j9 z) }* E6 e
& I0 ~1 t4 N. r& L | Components between primary and secondary
% {; s6 {2 t+ D& @7 [ | 57.68 ~9 U/ Q2 Z% G0 ~
| 60601-1(ed.2);am1;am2
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Standard(s)- (year and edition):% a q3 M$ j" p0 E2 M; |5 b% i
IEC 60601-1:1988 Am1+Am2+ O; x6 N* [0 @
Sub clause(s): 57.6: d6 {6 K7 j$ K2 n' k3 S
Sheet n°: DSH-433, x$ l3 n0 \4 A+ f' `- s
Subject: Components between primary and secondary
1 c3 ?0 G% D2 ]; b KKey words: Reinforced, insulation, bridging ) n8 Z9 O/ C. \; ? Q
Confirmed by CTL at its 39th meeting, in Cologne
7 }. u: |; ?* i/ G" [Question:
2 J: u5 A. v# A; yDOUBLE INSULATION and REINFORCED INSULATION are defined in subclasses 2.3.4 and 2.3.7.
" U z! f8 |0 e& o5 S0 P* T9 iRelevant requirements are in sub-clause 20 (Dielectric strength) and sub-clause 57.10 (CREEPAGE. `3 s4 ]* b, v; V4 S
DISTANCES and AIR CLEARANCES). Sometimes it is necessary to bridge the insulation by
; e( o7 }5 o/ x( e1 v& Z2 ncomponents (e.g. opto-couplers, capacitors). What are the requirements for these components?% g# Y" ]5 Q5 |% s
Decision:/ y- u( T9 [: ?9 J2 G! x7 O
Capacitors according to IEC 60384-14 type Y1 can be used to bridge DOUBLE or REINFORCED1 B1 V. O8 P* `2 P0 k
INSULATION.
% J/ T8 ^, b: z$ ?; ]+ \Step by step a list with references to standards for components with requirements concerning reliability, n4 p6 Q' Y+ L3 A3 M) U$ L) W
shall be established.
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发表于 2012-11-5 10:19
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