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本帖最后由 小二哥好 于 2016-9-27 15:31 编辑 + R/ Z& Q! l$ k
7 D& M2 t: x X' H3 r: [0 w) ~请教:2 i5 e7 k' m, v
在做IEC60601-1:2012时,内部电路到外壳的爬电距离、空气间隙是否需要考虑?% }& F; A: f/ i1 b! E
产品说明:适配器供电,初级AC240到次级DC15V。主机15V工作,但是由于功能需要,主机内部有变压器将DC15V转化为AC 70V(rms).应用部分与次级电路之间没有隔离,次级电路整个都算作是患者电路了。, T- P. P. ?! e7 q) J7 ^
次级电路到外壳(塑料外壳)之间的绝缘要求是否需要符合1MOPP,工作电压240V和2MOPP,工作电压70V的绝缘要求呢。测量的爬电距离的点是不是次级电路到外壳的缝隙处?9 l7 a$ [9 P1 I4 ^: M! ^
0 }" t# J; c9 ]8 P7 x0 U 应用部分是BF型的应用部分,次级与地是隔离的,整个外壳都是塑料外壳。5 y4 w' c: J+ x& |, v; o: s
标准条款:
1 U! R$ p) ~+ v; S7 B8.5.1.1 General+ V% P8 c3 d4 }: w! o J* ]
ME EQUIPMENT shall have two MEANS OF PROTECTION to prevent APPLIED PARTS and other
9 T9 d+ K$ K1 b- X- ?# WACCESSIBLE PARTS from exceeding the limits specified in 8.4.- e: F+ k m5 {$ Q' L* T
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2 _: N O# j" {8.5.2.1 * F-TYPE APPLIED PARTS+ @- n& w* \- q5 h+ I3 a5 Z
The PATIENT CONNECTION(S) of any F-TYPE APPLIED PART shall be separated from all other parts,0 v2 Z6 d6 n! d) Q% l
including the PATIENT CONNECTION(S) of other APPLIED PARTS, by means equivalent to one
$ ^+ c7 H4 G0 h3 t0 f3 D4 VMEANS OF PATIENT PROTECTION for a WORKING VOLTAGE equal to the MAXIMUM MAINS VOLTAGE
% q( {7 a& w$ Vand shall comply with the specified limit for PATIENT LEAKAGE CURRENT with 110 % of the
& l2 K# m8 X# w5 eMAXIMUM MAINS VOLTAGE applied.
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