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|  DSH 419: ?2 _0 ~8 c0 h" w: {5 S) ^, V! `
( c4 m( `7 d1 o$ [ | Internal battery for back-up power1 L/ P+ o! _. }: U# H3 `) k
| 6.8.2, 6.8.2 e)
- {; G1 r. m/ [: r# Z4 K6 u( ]3 n* D | 60601-1(ed.2);am1;am2( Q+ i$ r# Z% T: w: M2 C
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4 o F7 k3 ?$ xStandard(s)- (year and edition):2 ?" W: C+ M$ ?$ t
IEC 60601-1:1988 Ed.2 Am1+Am2
8 v9 r7 w% ]" n. YSub clause(s): 6.8.2 6.8.2 e)$ K+ }8 w4 w$ f* D& T
Sheet n°: DSH-4193 y) _0 ]8 J' _" n1 w% J, `
Subject: Internal battery for back-up power! o8 X/ C' s l/ @2 C' U
Key words: Internal battery, Protective earth terminal3 Y2 I k' o0 r [# O7 b* Y
Ce confirmed by CTL at its 39th meeting, in Cologne; X5 ?! {. C+ {8 E
Question:
+ k, T1 h+ s8 z; VThe requirement in this clause seems to be a little unreasonable. Assume for example,
+ ^+ Q3 w [1 tEQUIPMENT with an internal battery intended for back-up power in the event of a failure of the
+ l" S/ a0 u3 ?9 p4 |SUPPLY MAINS as a power source. Further, how can one say whether the external% X, G: f2 i. G
PROTECTIVE EARTH CONDUCTOR arrangement is in doubt or not?
- P6 z# N1 t$ [1 |8 v; `Decision:9 d* k0 o f( n; }# _3 Q9 [
The Instructions for use shall include for CLASS I EQUIPMENT the following statement:, w( \! z0 ~+ p) S9 h
“WARNING: THIS EQUIPMENT MUST ONLY BE CONNECTED TO A SUPPLY MAINS
7 g5 e% n: s" k( _6 q3 M9 sWITH PROTECTIVE EARTH.”6 k% ]8 V( I% A0 y' S* b
( R2 S7 a) t/ K- K+ m0 `3 }3 Z8 P' {
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发表于 2012-11-5 11:05
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