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本帖最后由 小二哥好 于 2016-9-27 15:31 编辑 # Z/ z, o! {+ D& O9 P, q) T' S
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请教:
9 \4 c$ g" I( R3 R 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 f3 S0 a/ S
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。9 l8 o6 N+ q3 X; C. h
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?
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, s) b& o# g% v" p) i5 O 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。9 J x, c/ [+ j- e- S
标准条款:
) o: W( |3 V* S2 t! J8.5.1.1 General
9 R$ n# l4 ]" V+ J- xME EQUIPMENT shall have two MEANS OF PROTECTION to prevent APPLIED PARTS and other
6 z/ {8 \; m+ q+ JACCESSIBLE PARTS from exceeding the limits specified in 8.4. ?8 I9 j6 [" r+ ^& S* R# ~: X- {
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1 z% i' W/ P. H& {& ]2 @# O1 J: ~9 n8.5.2.1 * F-TYPE APPLIED PARTS
6 n( h7 X# ~$ \* n5 @The PATIENT CONNECTION(S) of any F-TYPE APPLIED PART shall be separated from all other parts,
- z# V9 [! H8 u5 o' Z \+ Lincluding the PATIENT CONNECTION(S) of other APPLIED PARTS, by means equivalent to one. l$ b6 E# v7 @
MEANS OF PATIENT PROTECTION for a WORKING VOLTAGE equal to the MAXIMUM MAINS VOLTAGE9 m( S8 c, C3 l" D# x
and shall comply with the specified limit for PATIENT LEAKAGE CURRENT with 110 % of the
8 P) h1 k/ F+ U6 g! y# _MAXIMUM MAINS VOLTAGE applied.
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