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本帖最后由 小二哥好 于 2016-9-27 15:31 编辑 & T% `/ {/ j5 }6 a2 i
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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?
1 p6 J7 T/ ?' D6 i+ E9 I 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。) s9 |! |6 D: _; e4 d4 s) H z/ Z
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?( N4 g) a# h# F- p3 R5 Q& Y) j I
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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。# B6 T u1 G5 Q: Z9 z& P
标准条款:
8 l. G. x6 @ [2 Q) V8.5.1.1 General' a# x0 n: W! P6 j) Q# R
ME EQUIPMENT shall have two MEANS OF PROTECTION to prevent APPLIED PARTS and other$ Q6 b* h+ Z0 R# _; `
ACCESSIBLE PARTS from exceeding the limits specified in 8.4.# o, w: P3 M: Y$ D2 ~& i6 W
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8.5.2.1 * F-TYPE APPLIED PARTS
2 i. z( \/ ~7 C. HThe PATIENT CONNECTION(S) of any F-TYPE APPLIED PART shall be separated from all other parts,. T! Z8 N" S& `" Y; @4 t0 D
including the PATIENT CONNECTION(S) of other APPLIED PARTS, by means equivalent to one2 s- G/ r0 S0 r2 D
MEANS OF PATIENT PROTECTION for a WORKING VOLTAGE equal to the MAXIMUM MAINS VOLTAGE3 E) d5 C/ X/ x; ?& T# T
and shall comply with the specified limit for PATIENT LEAKAGE CURRENT with 110 % of the
% Y0 E5 l1 j( R7 {( n OMAXIMUM MAINS VOLTAGE applied.
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