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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。
2 c. F8 n0 i* y, c7 j$ j" L' j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。
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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
1 i4 f P+ W: p enot exceed 2 mA for d.c., its peak value shall not exceed 0,7 mA for a.c. and
6 o& e! ^$ V! V+ ?, Q– for voltages having a peak value over 42,4 V up to and including 450 V, the capacitance% z6 N4 L; X/ z
shall not exceed 0,1 μF,
; r/ P2 o$ h$ t# O1 {3 K– for voltages having a peak value over 450 V up to and including 15 kV, the discharge shall# v4 N, A7 L/ @0 ]3 c4 w
not exceed 45 μC,$ w; r6 Y1 _! c) D1 T. t
– for voltages having a peak value over 15 kV, the energy in the discharge shall not exceed" o& B, W, x; h
350 mJ.
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$ w, z" S3 u0 Z6 J, @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。1 w" u# B# w) M `, k. U7 ^0 J7 s
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没做过类似产品,只提供自己看法。 |
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