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电气间隙应该是没高要求的,因为其确定只和器具额定电压有关系。1 m$ O7 q) {4 \ }. c% ^
爬电举例和工作电压有关,但也不是很大,基本材料不太差,12.5mm就可以了。
3 V1 k2 @+ R3 W' S5 C4 P! |5 _+ u$ w( Y: `6 f( t
另外8.1.4中,可触及带电部件如果通过保护阻抗与带电部件隔离,If protective impedance is used, the current between the part and the supply source shall$ I( S/ A F3 n4 H
not exceed 2 mA for d.c., its peak value shall not exceed 0,7 mA for a.c. and4 ^, I2 ?5 T# a5 i0 d# W
– for voltages having a peak value over 42,4 V up to and including 450 V, the capacitance
' c7 V3 M" {& l/ _3 N) _( Zshall not exceed 0,1 μF,9 J2 \0 f* Y$ t* z* l* a! a
– for voltages having a peak value over 450 V up to and including 15 kV, the discharge shall2 O; {' s1 t" H Y/ P
not exceed 45 μC,
, v& B, M0 ~( L) K) a. @8 G– for voltages having a peak value over 15 kV, the energy in the discharge shall not exceed
& d3 M+ \% @/ [6 C8 g350 mJ.
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也可以不视为带电部件,换句话说,手可以直接触摸,一般通过放电量测试。
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没做过类似产品,只提供自己看法。 |
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