标题: 请教保护阻抗电量的测试方法 [打印本页] 作者: junkandy 时间: 2008-10-23 17:10 标题: 请教保护阻抗电量的测试方法 8.1.4 An accessible part is not considered to be live if1 i" t% E$ x& ^+ U, q% t* b( C
– the part is supplied at safety extra-low voltage, provided that( x! X6 x9 e3 V# B
• for a.c., the peak value of the voltage does not exceed 42,4 V, ( F) e2 X/ G" C4 a) i• for d.c., the voltage does not exceed 42,4 V, " G! L( o: l0 V: j Q' C6 _or" D* e. ^( G$ L" c
– the part is separated from live parts by protective impedance. 1 M3 u* W/ d7 e. k1 z7 x– for voltages having a peak value over 15 kV, the energy in the discharge shall not% I8 B. V# C4 |
exceed 350 mJ 6 N) B# Q+ U9 G; l" k 请教各位大侠，这里的保护阻抗的放电量是怎么测的？ 4 ~* C2 k' d. h% M" B