|
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。% j4 s8 g! L$ d# ^
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。8 p: S" ^5 k( |8 w* @/ W
. m7 C0 {: P+ y7 T0 I, F
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/ h% w2 j1 X* T0 E% {. W, z
not exceed 2 mA for d.c., its peak value shall not exceed 0,7 mA for a.c. and4 r( q: O/ c9 g. E: k6 N
– for voltages having a peak value over 42,4 V up to and including 450 V, the capacitance8 U$ v* P7 j! q
shall not exceed 0,1 μF,
$ I* h: M, n- c& E+ Y' {3 V7 r$ T– for voltages having a peak value over 450 V up to and including 15 kV, the discharge shall
: K1 k; t* ^! p1 W6 Unot exceed 45 μC,' A1 V1 u8 a# M% d' f# t/ E: G% Y
– for voltages having a peak value over 15 kV, the energy in the discharge shall not exceed2 i3 F* ^. w( T- U
350 mJ.# m$ H L( J9 w0 l. S* |7 f
$ O8 z( b _5 u7 [) k# C+ |
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 T. v' |% Y% l. B
7 h" |3 x/ _4 V+ y4 x$ o没做过类似产品,只提供自己看法。 |
|