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|  DSH 403* G7 P) n. T* E- j4 k; Y
4 p" k3 \$ Q' V! E5 `/ S- y6 Y | Capacitors
$ e; s4 W& M0 ^! [. d | 52.5.9
& x p4 W" N9 G# K# M9 a( G5 { | 60601-1(ed.2);am1;am29 s+ `/ i0 J/ P, K' _! G
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Standard(s)- (year and edition): N `% _6 J4 F6 m* T+ \
IEC 60601-1:1988 Ed.2 Am1+Am2* @0 q3 Y8 N2 S
Sub clause(s): 52.5.9
& ?- p7 B3 T0 ]/ g+ N1 LSheet n°: DSH-403
' Y8 Z5 L; ?3 t4 H0 {( KSubject: Capacitors
0 f. {2 Q7 |3 cKey words: Capacitors, supply mains) E* e7 @, C r' z
Confirmed by CTL at its 39th meeting, in Cologne0 v, G" W3 W! W2 W' ~- T1 o
Question:: Q5 E+ h+ a% `+ r Z
The Rationale to 57.7 is in contradiction with the requirement in 52.5.9. For instance, any; Z+ q e4 m6 F8 q. v! _
capacitor connected on the SUPPLY MAINS side of mains fuses would, in the case of shortcircuit# l/ x7 {$ w4 L: M0 p- A
fault, imply that the safety depends on safety devices external to the equipment in which
: ], T5 C" a6 L p! W/ ?2 Uthe capacitor is mounted.
+ ?& v& l. l( k4 ~What shall be required of components connected on the SUPPLY MAINS side of any mains fuse
: U% I: P4 t- M& w" O" b$ |or OVER-CURRENT RELEASE? For instance, shall capacitors complying with IEC Publication9 G% |. L3 G5 v9 C- E" W
60384-14 be accepted?' @; N. d7 g) |, E: L8 @9 X0 E" J6 X
Decision: M" G1 g. g& l t
For these c omponents, compliance with a relevant IEC standard should be sought. If no suitable
! L* v. |" P6 C2 }9 c( L/ Kstandard exists, examination of characteristics, evidence of reliability should be researched as; [; q' `! h) Y* h1 X& K3 a8 C: t
clause 3.4 suggests (equivalent degree of safety).* t/ P- e' e8 {4 ~/ G6 P
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发表于 2012-11-5 11:46
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