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|  DSH 403
7 _! y. ]% v1 m* @
' F( o4 S; A: `& m1 d+ j | Capacitors
( `! @4 a4 G9 u& y' V( w0 y" R | 52.5.9( x6 F$ t4 @" n6 X
| 60601-1(ed.2);am1;am2
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, P; B7 O# I6 JStandard(s)- (year and edition):! h( i3 W. F; W% f# Z# I
IEC 60601-1:1988 Ed.2 Am1+Am2
; B* K6 s6 ^; s% \, F0 d$ q. tSub clause(s): 52.5.91 u U; s7 Q% y) j( i+ P
Sheet n°: DSH-403& l" Y4 _9 I7 t3 h. R K+ K2 V
Subject: Capacitors
3 d1 M/ D8 r% kKey words: Capacitors, supply mains5 @; d; q/ `7 e& H
Confirmed by CTL at its 39th meeting, in Cologne" V1 l3 E1 R9 H# a0 U8 I6 U
Question:
, P! L: G B3 E# P( n/ fThe Rationale to 57.7 is in contradiction with the requirement in 52.5.9. For instance, any
* N* N8 R' v) G! @, N1 Scapacitor connected on the SUPPLY MAINS side of mains fuses would, in the case of shortcircuit
; ^* i ^" q0 {; L) Xfault, imply that the safety depends on safety devices external to the equipment in which
" n2 B M. q7 U$ _7 i k$ c' othe capacitor is mounted.# E* b+ v* u8 _' n* v, ?
What shall be required of components connected on the SUPPLY MAINS side of any mains fuse, g" F9 v0 o0 _+ E1 n2 Z
or OVER-CURRENT RELEASE? For instance, shall capacitors complying with IEC Publication
; X) C& s2 r8 {8 g) x9 N9 f60384-14 be accepted?
B4 W; M$ Q* B* \Decision:( O3 \6 v/ R) E) z2 M% d
For these c omponents, compliance with a relevant IEC standard should be sought. If no suitable
6 ~$ \ Y! Q4 l$ q/ P$ L5 I, {standard exists, examination of characteristics, evidence of reliability should be researched as
4 T/ y% z2 t1 X% gclause 3.4 suggests (equivalent degree of safety). E$ x; L) @( {" ~; {$ `4 _
; q* l I' `* A' V; \) e0 G$ [( t/ E9 @) ?% a$ r( ^4 V4 f' c
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发表于 2012-11-5 11:46
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