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|  DSH 419
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2 v k# E2 G% ]1 k, N4 f | Internal battery for back-up power6 t9 }6 Y- n/ m; x
| 6.8.2, 6.8.2 e)' J+ Q0 L6 a3 O/ @2 U/ M- Q
| 60601-1(ed.2);am1;am2 |9 m- _2 |: z* s. y$ \, p1 v
|
5 D0 _6 T1 w) ~/ w7 AStandard(s)- (year and edition):; {; k" ^' o$ c9 n
IEC 60601-1:1988 Ed.2 Am1+Am2" K# a1 _8 b, Q$ W0 X! A2 N
Sub clause(s): 6.8.2 6.8.2 e)
* I" u( _3 q1 C- w J! X$ nSheet n°: DSH-419: P" ^) O# D; S/ L+ t
Subject: Internal battery for back-up power! ^% @: C, Q) f3 J g0 y
Key words: Internal battery, Protective earth terminal
& n& L& O3 @1 \Ce confirmed by CTL at its 39th meeting, in Cologne8 A; j, C4 K8 ~' f- j
Question:
- G$ A5 L: i/ z9 i# eThe requirement in this clause seems to be a little unreasonable. Assume for example,
: m9 O V; ?4 x9 ?! }1 fEQUIPMENT with an internal battery intended for back-up power in the event of a failure of the
/ v* L" T' d; R$ USUPPLY MAINS as a power source. Further, how can one say whether the external r2 ^8 Z4 C O! D! ], w
PROTECTIVE EARTH CONDUCTOR arrangement is in doubt or not?
2 E3 ?/ Z; U: ?& s8 V2 `/ xDecision:
8 }6 Y! ~4 Q) ]6 i& B0 cThe Instructions for use shall include for CLASS I EQUIPMENT the following statement:
. \8 c- c8 f4 }“WARNING: THIS EQUIPMENT MUST ONLY BE CONNECTED TO A SUPPLY MAINS# b. R5 b2 L. E+ V7 G8 f, i
WITH PROTECTIVE EARTH.”. D9 G& G. ]: K+ ]
. C7 z3 t# z3 b) z! \! {2 e
; K5 Y5 @; \) G6 k/ E( o) M, X" N |
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发表于 2012-11-5 11:05
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