|
| DSH 404
K+ e8 y9 c" M {( c5 G; B7 ]4 C
# R7 W- q% Q" \* I. n6 R | Enclosures and protective covers
3 h4 z1 D, N9 C9 n; M$ y; m) k; K, k | 16, m5 [8 s6 Q+ a" J. q a4 }5 l
| 60601-1(ed.2);am1;am2
4 q/ K- I& e& p% x. A* L | 8 A6 l) N e* W: l! v7 {
Standard(s)- (year and edition):
& d4 H7 N8 X1 bIEC 60601-1:1988 Ed.2 Am1+Am2
5 x8 V4 B r! x! R i( Q4 ~; m$ SSub clause(s): 16
( `4 _) K" ?1 W- kSheet n°: DSH-404
6 m% @: }8 s8 E+ X o2 s. }3 DSubject: ENCLOSURES and PROTECTIVE COVERS, V+ \' ^" I3 {6 f; ~1 c
Key words: ENCLOSURES, PROTECTIVE COVERS, SIP/SOP9 F m3 U1 k3 K2 X0 V
Confirmed by CTL at its 39th meeting, in Cologne9 ?5 V7 ~: q1 W9 {5 N
Question:& l8 F9 P1 Q' @5 R) T
In practice, many standard SIP/SOPs are constructed so that live parts of the SIP/SOPs are
, B/ Y# ]" R% Qaccessible with the standard test finger or, alternatively, the air clearances and/or creepage
0 |7 i$ R. @' R$ t+ ^7 I. K1 Kdistances between these live parts and the standard test finger are too short. This means that7 Q& Z; N8 i, Y0 z: L% S/ j
these live parts of SIP/SOPs are to be considered as part of the enclosure and therefore the
: B& h" s, @* [, U3 H& ^corresponding enclosure leakage currents shall be measured, and hence, many existing
5 {# J& f* ? I" _ sstandard SIP/SOPs fail to comply with the standard.
! V( P$ Y" _& r; b2 V7 n8 ?Should, for instance, concession be granted for SIP/SOPs with accessible live parts with a
' o9 z/ M& _& A" f" M7 Bvoltage (to earth) not exceeding 25V AC or 60V DC?! V, f1 H' ]9 A4 O
Decision:
% ^% A2 B3 |% R# N! aInclude SIP/SOP in the list of sub-clause 16e)1.
8 x5 a' p. }' v- ` Z( g6 OInstructions for use must contain the warning given in 16a)5.
" c( J, k, Z+ S; g" \
9 l1 W/ f1 P. h! F) u- Q: F' Y3 n3 H$ T2 @# ?5 \' O
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?注册安规
x
|