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本帖最后由 小二哥好 于 2016-9-27 15:31 编辑 4 D( k3 }& X3 e1 F/ o& Q, j3 T" d
" u+ F2 U: }0 r# ]( W请教:8 C( x0 G2 w1 M% w$ _
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?: g, y! _1 ?* 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。
3 S. {( n+ ~/ |% x; i 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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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。$ B* Y! s8 e- L3 f+ c- F# e
标准条款:
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ME EQUIPMENT shall have two MEANS OF PROTECTION to prevent APPLIED PARTS and other& x, w1 H6 ^4 w
ACCESSIBLE PARTS from exceeding the limits specified in 8.4., O9 z3 x* e7 A$ ?9 e& f
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1 w% }; _+ V% v9 v8.5.2.1 * F-TYPE APPLIED PARTS; r- e, J; f: y+ J: M P+ c- m1 Q
The PATIENT CONNECTION(S) of any F-TYPE APPLIED PART shall be separated from all other parts,
, I1 t; r; d% p- f+ l" T2 M/ l: ^including the PATIENT CONNECTION(S) of other APPLIED PARTS, by means equivalent to one) O/ u$ r# k5 x
MEANS OF PATIENT PROTECTION for a WORKING VOLTAGE equal to the MAXIMUM MAINS VOLTAGE
8 g9 w5 I8 C5 q: W; f8 V( eand shall comply with the specified limit for PATIENT LEAKAGE CURRENT with 110 % of the
) E2 |, d9 C4 | L& V+ M7 HMAXIMUM MAINS VOLTAGE applied., z' L6 C! ]& o' X; k0 |$ M
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