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本帖最后由 小二哥好 于 2016-9-27 15:31 编辑 . j) V( U+ ?8 o# Y) x+ m
- B+ L1 H' [4 P( J L+ J! }请教:/ D+ p& t5 \9 u
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?
# B+ O, _3 {/ s$ F% O 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。
8 j0 Z, Q h/ D1 Y S7 L! x* ] 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?, M) L( Y$ O1 k I. l
* p2 }0 j: z" R% J6 ]7 O" A 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。5 y5 e4 m0 @& j6 y$ y
标准条款:
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ME EQUIPMENT shall have two MEANS OF PROTECTION to prevent APPLIED PARTS and other& G, r/ B* t/ H& E) @ Y
ACCESSIBLE PARTS from exceeding the limits specified in 8.4.
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% x: j1 i' ] f3 x' t7 f# }* z8.5.2.1 * F-TYPE APPLIED PARTS
! B# Z8 b$ r6 _2 dThe PATIENT CONNECTION(S) of any F-TYPE APPLIED PART shall be separated from all other parts,
/ ~( n) w9 ^; e6 C8 ~. @* Jincluding the PATIENT CONNECTION(S) of other APPLIED PARTS, by means equivalent to one
+ N X9 G7 V9 X- w7 HMEANS OF PATIENT PROTECTION for a WORKING VOLTAGE equal to the MAXIMUM MAINS VOLTAGE: @' s5 I: E. }5 N, ~. d: U' T
and shall comply with the specified limit for PATIENT LEAKAGE CURRENT with 110 % of the
/ J- r% d2 U$ N5 n: TMAXIMUM MAINS VOLTAGE applied.
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