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|  DSH 403
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6 `" T, `) f; `: B! d9 {) q | Capacitors* J; s! F0 X8 L1 T+ k
| 52.5.9
8 p$ P9 e j C5 N' b | 60601-1(ed.2);am1;am2
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Standard(s)- (year and edition):2 L' Q0 J7 E% I s H5 j& p
IEC 60601-1:1988 Ed.2 Am1+Am27 Z& v) V* \. i( R* s) Q" R
Sub clause(s): 52.5.9
7 y% B, ^9 I8 g: C4 w9 l2 [, t+ QSheet n°: DSH-403
5 z# I5 s, }" f2 }% FSubject: Capacitors. q+ a, W. {! H! S3 n7 r; S, n
Key words: Capacitors, supply mains0 }4 R1 M3 @4 G, w
Confirmed by CTL at its 39th meeting, in Cologne1 o- S$ V) k$ g" f5 Z
Question:& G6 @2 O- c+ R0 |8 Z
The Rationale to 57.7 is in contradiction with the requirement in 52.5.9. For instance, any
( q- Z. Y8 Q' g Scapacitor connected on the SUPPLY MAINS side of mains fuses would, in the case of shortcircuit0 R& f8 G% u6 f G8 s- H
fault, imply that the safety depends on safety devices external to the equipment in which- ^& ^1 w) c2 t7 S
the capacitor is mounted.
: B0 m9 Z' q6 SWhat shall be required of components connected on the SUPPLY MAINS side of any mains fuse
$ A4 ]+ S: h& S& D2 Yor OVER-CURRENT RELEASE? For instance, shall capacitors complying with IEC Publication5 g# z( q5 j2 O9 o" x+ }, B: q
60384-14 be accepted?
( W& K& S- D0 I- B" t! ]% mDecision:
3 g8 N) `$ q) zFor these c omponents, compliance with a relevant IEC standard should be sought. If no suitable
7 P3 |1 y0 G8 vstandard exists, examination of characteristics, evidence of reliability should be researched as+ [) V7 u6 E* M9 F
clause 3.4 suggests (equivalent degree of safety).6 P- q, s. y. _4 l R0 G
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