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|  DSH 4193 A3 ]% Y8 M" n/ _; v
5 i' O& s" d5 m5 W% L; ?: O& ?+ r | Internal battery for back-up power
( r+ H) E. x* m8 r& l5 d | 6.8.2, 6.8.2 e)$ G0 g& I8 H! I2 i
| 60601-1(ed.2);am1;am2
4 U6 @8 R& m3 A |
+ r9 J7 s$ B9 m' e8 V7 F4 dStandard(s)- (year and edition):
! x/ }% N7 `; d, bIEC 60601-1:1988 Ed.2 Am1+Am2; |4 J _2 _' h9 X
Sub clause(s): 6.8.2 6.8.2 e)
# u0 F. E6 F+ X) F4 @3 ~Sheet n°: DSH-419
! |( t. y* V3 X! Y* H. P! DSubject: Internal battery for back-up power) o* K" |. ^$ w) \, P" r Z |3 f
Key words: Internal battery, Protective earth terminal
4 n6 L3 C+ E5 H8 {) qCe confirmed by CTL at its 39th meeting, in Cologne
v4 e/ f, l* c) [6 eQuestion:3 D9 w, W% r9 ~/ b" S. Y* g- z
The requirement in this clause seems to be a little unreasonable. Assume for example,, [( W$ W# t, S4 `3 U! I/ }# S5 V
EQUIPMENT with an internal battery intended for back-up power in the event of a failure of the" G$ g% [+ m2 v' Q
SUPPLY MAINS as a power source. Further, how can one say whether the external$ g9 `, C, C2 A5 D" I' M" h
PROTECTIVE EARTH CONDUCTOR arrangement is in doubt or not?
# A4 n( A8 D) u2 H4 S9 N1 a0 QDecision:
+ Z6 _7 }0 X0 q7 E1 O1 v" sThe Instructions for use shall include for CLASS I EQUIPMENT the following statement:* [, |, R3 a0 {7 I9 N
“WARNING: THIS EQUIPMENT MUST ONLY BE CONNECTED TO A SUPPLY MAINS( U, _; I3 {% c, C# _$ T7 K5 G, ~
WITH PROTECTIVE EARTH.”
* ^8 m" {* O3 Z5 _
4 M" Y5 n5 ^$ w9 M& a
1 i# Z. K3 ^: ?, e' |, i |
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发表于 2012-11-5 11:05
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