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EN61010 3.5.7中对保护阻抗定义:
( A! T7 ~ b9 U% ?' M6 scomponent, assembly of components or the combination of BASIC INSULATION and a current or
, @: T- z- e5 Z! g( o) K m; Tvoltage-limiting device, whose impedance, construction and reliability are such that, when+ D% J# t9 i2 T1 U. f8 |
connected between ACCESSIBLE conductive parts and parts which are HAZARDOUS LIVE, it
5 i( ~7 T$ u) ^) ]- V' j' w: aprovides protection to the extent required by this standard in NORMAL CONDITION and SINGLE
+ T# p: S! ~$ O5 dFAULT CONDITION1 }- A' |2 v+ O" k
. g+ S5 Z9 L# _ ^# T' f$ N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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