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IEC 60601-1 11.6.5中提到了判定标准:
! L G! h+ s% T1 a# CAfter these PROCEDURES, the ME EQUIPMENT is to show no signs of bridging of insulation (or
4 c/ X- f' t- y. L% r9 ~: qelectrical components) that could result in a HAZARDOUS SITUATION is likely to result in the loss
9 e: j5 g5 I- E. \* ?of BASIC SAFETY or ESSENTIAL PERFORMANCE in NORMAL CONDITION or in combination with a/ a* P' B; u4 i3 }3 p
SINGLE FAULT CONDITION (based on a visual inspection) followed by the appropriate dielectric
7 \, u$ @% H+ ?. U$ x- K# Sstrength and LEAKAGE CURRENT tests.
$ W& X- K$ t# P2 o水进到带电部件可以,但是不能导致危害情形的产生,比如基本安全或关键性能的下降缺失。(比如桥接了电池正负极,可能导致短路)/ l: t3 L W$ s
8 O% N B. |. g! c: b, f8 N) v! A视检
3 P0 R, V5 |6 r$ g D: u$ k耐压
; q: R. s. P! y) L' D0 Q泄露电流
9 N" T0 k3 a, T# ?- H e测试后, check essential performence, 看看有无问题。
[ i! }; }% \5 t
6 L4 r5 @# e d4 t) ^1 @' ^以上都无问题即可。
, Z4 b1 K1 ^% D+ u7 s另外多说一句:根据设备的IP分类进行的比如防水测试后,设备内部进水被认为是正常工作条件,所以评估设备IP测试后是否会导致危险情形的产生,需要在单故障下进行,比如断开地线。 |
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