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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。; Q: r1 E a: V) X' t
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。
7 W, @$ d( i S% b/ M. D! ~" Z6 P3 [9 x
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
0 h1 H0 A) S0 q% y( Knot exceed 2 mA for d.c., its peak value shall not exceed 0,7 mA for a.c. and
! N9 `% s# ]& y* `2 T8 D+ k) I7 a– for voltages having a peak value over 42,4 V up to and including 450 V, the capacitance
7 m( R5 h+ U4 Y0 U( A$ p- eshall not exceed 0,1 μF,3 B/ Q* x) `! R. O0 Z1 g4 s* j$ k
– for voltages having a peak value over 450 V up to and including 15 kV, the discharge shall
+ T$ D8 {, y1 E3 v2 z5 v3 D5 R* tnot exceed 45 μC,
3 j: O; _0 O' i$ R– for voltages having a peak value over 15 kV, the energy in the discharge shall not exceed
1 s( R- r/ t; v. }, a8 p3 Y350 mJ.5 ?& ]- P! ?" x$ A; P8 \
/ W" {; u) k/ ~2 ]" ?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。3 X0 C" ~7 B( ?+ B- H5 }# U
4 b+ }9 i$ r0 I# \5 y3 D3 U0 _
没做过类似产品,只提供自己看法。 |
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