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本帖最后由 小二哥好 于 2016-9-27 15:31 编辑
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: `2 O, Q* p; Y7 T请教:( t+ s1 @; O4 N- y9 t
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?
4 I6 }& d1 F. o1 n( w 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。) f' Q0 R6 o0 m$ f, d7 `
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?, b; T5 k$ L' r: d( a/ k
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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。
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8.5.1.1 General
7 X, w8 z7 ]1 Y: n. ]* mME EQUIPMENT shall have two MEANS OF PROTECTION to prevent APPLIED PARTS and other9 j& Q% }( M- B9 q, n. W4 N
ACCESSIBLE PARTS from exceeding the limits specified in 8.4.. b/ s: [- Z, m9 l
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8.5.2.1 * F-TYPE APPLIED PARTS
1 W( f* o" \3 |+ v' G% l! e! u4 |) iThe PATIENT CONNECTION(S) of any F-TYPE APPLIED PART shall be separated from all other parts,* c& y3 p0 C5 t% z# a
including the PATIENT CONNECTION(S) of other APPLIED PARTS, by means equivalent to one
* B9 f4 ^" l/ i3 BMEANS OF PATIENT PROTECTION for a WORKING VOLTAGE equal to the MAXIMUM MAINS VOLTAGE
: F" T# ]+ N% m' Mand shall comply with the specified limit for PATIENT LEAKAGE CURRENT with 110 % of the
+ U' _% e1 I3 s+ B# W2 i3 wMAXIMUM MAINS VOLTAGE applied.
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