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|  DSH 404) f# j3 j$ i0 n# Y$ r8 ?
3 m! D+ y0 H t: g- J% i
| Enclosures and protective covers. y8 e$ b' z0 F6 B8 I
| 16% {1 k/ e/ ^- W8 T. ?$ N3 n
| 60601-1(ed.2);am1;am2# G0 _, j0 c# q& [, R6 O. L
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1 h3 |" h. ?6 ?4 F0 cStandard(s)- (year and edition):; {3 E2 L" x4 d* o5 B' @7 m) ^
IEC 60601-1:1988 Ed.2 Am1+Am2, ]# g$ |& l+ S; f8 r
Sub clause(s): 165 c9 M8 F4 @; k. J
Sheet n°: DSH-404" H9 B% j/ [/ y9 P0 ~3 N
Subject: ENCLOSURES and PROTECTIVE COVERS
, k; [4 R& c. K; ^1 Y! R' lKey words: ENCLOSURES, PROTECTIVE COVERS, SIP/SOP% ~# G1 _$ J& k& m' d
Confirmed by CTL at its 39th meeting, in Cologne
- X, r; i4 }: L+ m: e' eQuestion:
# g* ]7 M! k3 _' v5 I- j5 f' O* FIn practice, many standard SIP/SOPs are constructed so that live parts of the SIP/SOPs are
) m; R, R8 ^% Jaccessible with the standard test finger or, alternatively, the air clearances and/or creepage2 I* Y0 [! T- q% Y. z: i* G
distances between these live parts and the standard test finger are too short. This means that3 h' L. G* e+ r
these live parts of SIP/SOPs are to be considered as part of the enclosure and therefore the( }4 P3 a% }. G) x( y% Q6 B3 l0 q
corresponding enclosure leakage currents shall be measured, and hence, many existing
( a' S' R3 \. Z- o H( ~2 lstandard SIP/SOPs fail to comply with the standard.& s+ P$ i( [# D
Should, for instance, concession be granted for SIP/SOPs with accessible live parts with a1 a3 Z3 G, \/ d- Q3 ?
voltage (to earth) not exceeding 25V AC or 60V DC?
; X5 u8 ` e' Y) C/ o3 IDecision:8 Z4 I4 @) V, \! C+ e
Include SIP/SOP in the list of sub-clause 16e)1.
7 l! v6 z% [9 z: C- S$ rInstructions for use must contain the warning given in 16a)5.+ d( b0 l* H2 _0 q/ @; c# N
' Y. R5 t$ }3 ?# a, ^% b; x
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发表于 2012-11-5 11:43
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