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|  DSH 404
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3 t3 l6 B n4 ^4 z1 Q; f& y0 `" ? | Enclosures and protective covers
2 ^3 _! ^- F8 P& p. ?3 G$ b$ s | 16/ {7 ^, Z9 K4 D9 C- B) m# {- X4 q
| 60601-1(ed.2);am1;am2) O& C% x4 x X5 g; O2 k% y9 H
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Standard(s)- (year and edition):
. x' J$ ~; M+ ]) p, w! {IEC 60601-1:1988 Ed.2 Am1+Am2% b0 _5 j" V; e# E, @
Sub clause(s): 16
J8 `* H5 A/ W" sSheet n°: DSH-404
7 V) y/ u, ^, d! W8 H! WSubject: ENCLOSURES and PROTECTIVE COVERS- f0 h% V% J; N
Key words: ENCLOSURES, PROTECTIVE COVERS, SIP/SOP
/ H; b/ U. }: O# p0 [Confirmed by CTL at its 39th meeting, in Cologne L; e/ Y# Z$ u, z% o3 Q; Z: a+ L. C
Question:* b H' D u( v b) R) \4 p
In practice, many standard SIP/SOPs are constructed so that live parts of the SIP/SOPs are
, p3 B' s- R# _& faccessible with the standard test finger or, alternatively, the air clearances and/or creepage
2 Y% V7 v0 w$ ^4 q) m7 a" Ldistances between these live parts and the standard test finger are too short. This means that
6 G5 h/ I9 N2 m n% I. a5 qthese live parts of SIP/SOPs are to be considered as part of the enclosure and therefore the
, b) W0 ~5 _% S/ g5 xcorresponding enclosure leakage currents shall be measured, and hence, many existing
2 s) N: o2 c! ^' r' r9 R) |$ f! Nstandard SIP/SOPs fail to comply with the standard.
0 u) e. Q- ?5 I* ^% l0 dShould, for instance, concession be granted for SIP/SOPs with accessible live parts with a
5 R+ V- R! J. Tvoltage (to earth) not exceeding 25V AC or 60V DC?" b3 Q* Z5 ^# R9 t+ Y& Y: y& U
Decision:/ g$ C3 L3 u* T& ?) S
Include SIP/SOP in the list of sub-clause 16e)1.8 I- R$ K* A* \
Instructions for use must contain the warning given in 16a)5.
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发表于 2012-11-5 11:43
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