|
|
|  DSH 419
6 { E% o r: ?. M3 M: |* r2 |+ H7 @# N
| Internal battery for back-up power" o4 B6 }( U8 s! x. z3 h( x1 ^2 e2 }
| 6.8.2, 6.8.2 e)) {- [8 J0 C Y8 B
| 60601-1(ed.2);am1;am2 v; S( \/ X; Q/ B: o# h
|
2 L. j4 K$ S2 A. WStandard(s)- (year and edition):& D6 m8 y! f9 p' i
IEC 60601-1:1988 Ed.2 Am1+Am29 d/ F4 h7 Y: U6 G2 M8 K. s
Sub clause(s): 6.8.2 6.8.2 e)
$ l& ~2 M! q5 r" g; a- H3 X+ ISheet n°: DSH-4193 o2 X: m7 f0 Z& _
Subject: Internal battery for back-up power
" E6 M+ r" a3 Z, uKey words: Internal battery, Protective earth terminal
! {/ O( k! ~" a; b6 f8 A( g) y% FCe confirmed by CTL at its 39th meeting, in Cologne& K4 y1 _( w- E8 ^
Question:( W' O/ C/ c5 y+ H- H) B: ]
The requirement in this clause seems to be a little unreasonable. Assume for example,
6 H8 I4 L; E) C- ?EQUIPMENT with an internal battery intended for back-up power in the event of a failure of the( B" |4 l' z) f1 y) U: b
SUPPLY MAINS as a power source. Further, how can one say whether the external
' G6 E5 H( \% K3 r \8 |: IPROTECTIVE EARTH CONDUCTOR arrangement is in doubt or not?
& v: v( U5 }5 \! Y& X, F" @ ^- H$ |5 oDecision:
h \; E# @# x* w5 }. \The Instructions for use shall include for CLASS I EQUIPMENT the following statement:
4 i- r/ I$ n; p+ j; ^( w3 ^“WARNING: THIS EQUIPMENT MUST ONLY BE CONNECTED TO A SUPPLY MAINS
; q. F# i" E* D9 V. D. QWITH PROTECTIVE EARTH.”/ [ ?0 x4 A9 m1 b* o7 X
$ V. ~8 `2 V. {5 p% {/ h- F p
, E, Z' G t8 l2 ]' F1 O, J |
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发表于 2012-11-5 11:05
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