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本帖最后由 小二哥好 于 2016-9-27 15:31 编辑 4 ?/ E$ T9 C' k. e* I. W
0 a3 @6 w# B- S1 I D/ t# y请教:1 I: n2 s0 @4 {0 `/ 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?6 ?8 Q/ l4 @) o' l* f6 n
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。( L. M* t$ e- o; C/ ?) Y9 d
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?+ C ^! |& W& p% p
7 g0 W! i! ^7 H' H$ `( w7 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。. q7 X/ K9 M8 B9 d/ n) ]
标准条款:( L1 N, P) G W& z" H- m
8.5.1.1 General( s% t0 L6 u; K* [8 Z# Q
ME EQUIPMENT shall have two MEANS OF PROTECTION to prevent APPLIED PARTS and other
/ ~9 ]6 S( ]: D+ q1 x+ wACCESSIBLE PARTS from exceeding the limits specified in 8.4.' {* j8 v* e4 Q5 B
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8.5.2.1 * F-TYPE APPLIED PARTS
* ^3 g' D: x# o' _9 ZThe PATIENT CONNECTION(S) of any F-TYPE APPLIED PART shall be separated from all other parts,
- Y: X$ r0 A% p" W$ V3 V2 kincluding the PATIENT CONNECTION(S) of other APPLIED PARTS, by means equivalent to one3 k+ b) d9 q- e: o0 _5 Q8 h
MEANS OF PATIENT PROTECTION for a WORKING VOLTAGE equal to the MAXIMUM MAINS VOLTAGE
+ l6 m% I1 @4 k% t8 k+ O2 `4 X7 Zand shall comply with the specified limit for PATIENT LEAKAGE CURRENT with 110 % of the
+ |9 f, i+ Q) l8 g( ?7 LMAXIMUM MAINS VOLTAGE applied.0 q; X7 x% b# ]9 K7 I- d
) C+ t. U( T8 C c% {2 K* T% M
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