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|  DSH 403; [! }* H0 c4 L% \
$ z* W& d: u& A+ S* a
| Capacitors$ C3 f6 X6 g/ `# e7 y' V2 S
| 52.5.9# u1 m" e/ _. L: D' l8 ^
| 60601-1(ed.2);am1;am2 Q u1 @. R9 T
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; t) h" t2 p8 `" g' ~3 Q1 x/ C& nStandard(s)- (year and edition):$ n) W3 h2 F F
IEC 60601-1:1988 Ed.2 Am1+Am2
; u& m% j3 d9 ?) w0 h0 ySub clause(s): 52.5.9. A4 L$ q, Q' A/ h2 _, p
Sheet n°: DSH-403. s, N; u0 } d9 H4 i# P# `6 Z& F
Subject: Capacitors
& q0 \( A9 b* t7 G; JKey words: Capacitors, supply mains
" c: w+ t4 Z8 W: bConfirmed by CTL at its 39th meeting, in Cologne
! {" S# N2 Y# yQuestion:
1 g; c4 ^. o/ b( q5 A& GThe Rationale to 57.7 is in contradiction with the requirement in 52.5.9. For instance, any- X) W' s6 m- F
capacitor connected on the SUPPLY MAINS side of mains fuses would, in the case of shortcircuit
7 B e7 b) e) K4 \fault, imply that the safety depends on safety devices external to the equipment in which
$ E$ C2 A; h2 ?) C3 Qthe capacitor is mounted.
* M" }2 P( i l9 WWhat shall be required of components connected on the SUPPLY MAINS side of any mains fuse5 n* ^ s8 @! P8 d
or OVER-CURRENT RELEASE? For instance, shall capacitors complying with IEC Publication
" f- @& \! y) w% c2 B+ K h [8 p60384-14 be accepted?
- z8 }+ U( U# c2 R! v' B( N ]- V4 vDecision:
# M; f1 k |3 iFor these c omponents, compliance with a relevant IEC standard should be sought. If no suitable. q$ s5 s! Y0 d( ?) }+ }0 X+ v
standard exists, examination of characteristics, evidence of reliability should be researched as
1 v( F7 l; T ^2 b* d% rclause 3.4 suggests (equivalent degree of safety).* D9 U3 V+ O* K S& ]
+ M+ v2 o" k3 N- h3 ~
/ F6 o# J6 g, {
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