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EN61010 3.5.7中对保护阻抗定义:( a) O9 i5 a' p! l
component, assembly of components or the combination of BASIC INSULATION and a current or
! O- _6 d. Y2 U. q& [/ Q) jvoltage-limiting device, whose impedance, construction and reliability are such that, when. M& h! [$ ^: C6 k( _% M$ D% T; X
connected between ACCESSIBLE conductive parts and parts which are HAZARDOUS LIVE, it
j4 }+ q& w. P; ~0 w! lprovides protection to the extent required by this standard in NORMAL CONDITION and SINGLE
; W! ]+ n1 c) A* X' F4 HFAULT CONDITION
# z' ], y8 y1 o; @" y0 V& F1 x
; ]1 P5 f# m; b0 S1 @保护阻抗具体是指哪些呢?如果仅仅是防止可接触导电部件危险带电,那如果次级SELV电路不可接触,Y电容还算不算保护阻抗?I类产品的金属外壳和危险带电部件之间算the combination of BASIC INSULATION and a current or voltage-limiting device吗? |
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