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本帖最后由 小二哥好 于 2016-9-27 15:31 编辑 - _* d" m; L+ Z) E$ g4 H4 B2 j/ w& V
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请教:
f$ N; {+ c7 {9 j( A 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?5 c5 E8 W7 T* {: q3 n! v
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。. Y. C+ ]0 N: w% H* x
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?0 ]. Y' j' Z% E7 n( X' i
( _5 d9 Z+ q) h4 P3 |8 X 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。
A* R+ q% Q. x) n" P: _. g标准条款:% V1 p, E5 K9 d0 J( y
8.5.1.1 General2 G% p- n0 h3 C+ d9 |1 T
ME EQUIPMENT shall have two MEANS OF PROTECTION to prevent APPLIED PARTS and other+ y: i6 I E4 v2 ^
ACCESSIBLE PARTS from exceeding the limits specified in 8.4.
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8.5.2.1 * F-TYPE APPLIED PARTS
$ Z5 [+ Q8 l+ `6 EThe PATIENT CONNECTION(S) of any F-TYPE APPLIED PART shall be separated from all other parts," F. k) K. b8 U9 D# l9 `0 d5 h
including the PATIENT CONNECTION(S) of other APPLIED PARTS, by means equivalent to one
4 t+ Z4 Q5 A% m/ h* y. H0 @MEANS OF PATIENT PROTECTION for a WORKING VOLTAGE equal to the MAXIMUM MAINS VOLTAGE
" d9 ?7 k8 _0 j' a1 D+ E1 j) d! Hand shall comply with the specified limit for PATIENT LEAKAGE CURRENT with 110 % of the( W. J/ j, c# s. K! o; ^+ q& s
MAXIMUM MAINS VOLTAGE applied.
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