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|  DSH 403# [/ q/ b8 c9 g/ O) s+ z- |
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| Capacitors- l7 K6 y1 x$ I% l H; l
| 52.5.9
+ h! o0 X6 y" I3 W+ l R/ n. s | 60601-1(ed.2);am1;am2
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. ?) T* L z7 E) h* _Standard(s)- (year and edition):
+ m7 D7 n) |( F# FIEC 60601-1:1988 Ed.2 Am1+Am2
& a7 S) ^4 w3 I/ ]Sub clause(s): 52.5.9: `) n6 S5 s/ o/ G& b
Sheet n°: DSH-403( }' S' D+ s* A% k! B+ V3 ~ R
Subject: Capacitors& ~) N9 p) Q7 R0 d; S9 y2 G
Key words: Capacitors, supply mains
' H, s6 ?+ `5 ?$ jConfirmed by CTL at its 39th meeting, in Cologne" Y8 P% V& b8 j+ n
Question:
8 B5 m' u2 g3 n3 t( OThe Rationale to 57.7 is in contradiction with the requirement in 52.5.9. For instance, any& N7 M4 X8 ~5 \9 ~/ U* n3 \) s' @
capacitor connected on the SUPPLY MAINS side of mains fuses would, in the case of shortcircuit
9 u+ \- x' v& }4 v* cfault, imply that the safety depends on safety devices external to the equipment in which6 O- l) S4 D, p& j( M' W4 Y- f
the capacitor is mounted.
- p7 ?+ v% M4 d9 l; h/ Q( RWhat shall be required of components connected on the SUPPLY MAINS side of any mains fuse
/ G' C. A4 y# Q, @or OVER-CURRENT RELEASE? For instance, shall capacitors complying with IEC Publication5 m0 \' [" `/ c8 n F
60384-14 be accepted?
3 t/ Q1 b# r" O9 M$ U" eDecision:
6 l$ s D. y* ]% A& s# h# ^( QFor these c omponents, compliance with a relevant IEC standard should be sought. If no suitable
7 Y; O0 M9 N. ~standard exists, examination of characteristics, evidence of reliability should be researched as; t& O) n3 N" U8 \) b+ l6 E, l
clause 3.4 suggests (equivalent degree of safety).
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