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|  DSH 403( r7 o4 D. Q, w) U
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| Capacitors
; e3 R7 E4 U- ?. Q. X0 Z | 52.5.91 o' c" l( a# g: R( Y
| 60601-1(ed.2);am1;am21 `2 E1 h; }& F/ T# h
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Standard(s)- (year and edition):, V e( ?# O5 k, ?; S! u! t
IEC 60601-1:1988 Ed.2 Am1+Am2; H( i- g5 N( v* e' N& H
Sub clause(s): 52.5.9* `3 o4 @* K2 U3 `
Sheet n°: DSH-403* S5 g- `' Y/ X5 ^8 S ~
Subject: Capacitors
6 x# ]; ]5 i3 P1 `& ?% @. `Key words: Capacitors, supply mains. r1 _: ^/ e- o+ g ?& n' k3 R
Confirmed by CTL at its 39th meeting, in Cologne- n' g# y- _* |& ]* C+ U X
Question:
9 ?, u6 c5 ]/ S- KThe Rationale to 57.7 is in contradiction with the requirement in 52.5.9. For instance, any8 R; ~+ t4 S2 ~, K( w) @ @
capacitor connected on the SUPPLY MAINS side of mains fuses would, in the case of shortcircuit2 M- ^; H9 S/ t: r
fault, imply that the safety depends on safety devices external to the equipment in which& i+ n' ]# ]. o3 q$ m
the capacitor is mounted.' z; x6 _2 L" S" l1 G7 S/ ~
What shall be required of components connected on the SUPPLY MAINS side of any mains fuse
( a! ^" ~8 s; \3 por OVER-CURRENT RELEASE? For instance, shall capacitors complying with IEC Publication
) u. s5 r& E9 r9 E% k# j7 T; s, ~60384-14 be accepted?
( k2 @1 c9 w7 a4 mDecision:
1 Q% h$ R( }0 a$ _- |: S; ]For these c omponents, compliance with a relevant IEC standard should be sought. If no suitable
3 m' \) C" W# S8 O& fstandard exists, examination of characteristics, evidence of reliability should be researched as5 U" k P& g: m. a
clause 3.4 suggests (equivalent degree of safety).
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