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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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请教:) _' q5 g6 {2 D
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?- J& | [4 F# B ^
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。
1 k+ P) ^$ b. ~1 j' E6 w- 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?
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8 D X+ G: }: X! y( _0 d" Q! W 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/ W! J9 M, v# g& ^( R' @' K4 B! w
ME EQUIPMENT shall have two MEANS OF PROTECTION to prevent APPLIED PARTS and other. b6 {: L1 ?' } h3 k( I
ACCESSIBLE PARTS from exceeding the limits specified in 8.4. O6 F4 O; w t( I6 f1 E6 r+ U! T
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* \5 l! u) X3 u8.5.2.1 * F-TYPE APPLIED PARTS' `7 r* _9 V/ J8 I) T
The PATIENT CONNECTION(S) of any F-TYPE APPLIED PART shall be separated from all other parts,& U$ q4 r4 n$ |
including the PATIENT CONNECTION(S) of other APPLIED PARTS, by means equivalent to one. b! s* t7 m1 K; r) K
MEANS OF PATIENT PROTECTION for a WORKING VOLTAGE equal to the MAXIMUM MAINS VOLTAGE1 W4 o& d: J9 C% s9 }8 h
and shall comply with the specified limit for PATIENT LEAKAGE CURRENT with 110 % of the
2 _ a: E1 G4 U& c4 c& i' z4 c6 KMAXIMUM MAINS VOLTAGE applied.
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