|
question 2: the voltage drop in a protective bonding conductor is measured after conducting the test current for the time period specified below. the test current can be either a.c. or d.c. and the test voltage shall not exceed 12V.0 @0 g3 |1 B4 u5 T9 k- d
. t7 G \1 y4 k. R$ a7 |$ g! n
这个VOLTAGE DROP就是用万用表还是示波器放在Protective bongding conductive 两端测试吗?
" z ]3 p" G, Q- I
- j* l+ I J1 F: L& Q测试方法是不是直接给这个protective bonding conductive 一个两倍的额定保护电流?, G6 V& X. C4 e; D
! ?$ R* H% C {* T2.6.3.4 中
0 U7 }8 W0 G2 E K3 x2 C c# g! c% g) B; j, ~
a) 针对保护电流为16A以下的产品,Protective bonding conductive 电阻不能超过0.1欧姆,是吗?9 V, s/ q1 n) J, |7 a3 Q. [' s
# B0 g1 v# R! k* M+ q# f
" ]: p' C, M& z* B, Z# t( ?/ L那上面的and the test voltage shall not exceed 12V适用于哪?看糊涂了!是测试电压,不是Protective bongding conductive的压降对吗?那么这个测试电压怎么施加呢? d/ x$ E6 j8 D- G, M7 I5 e" b
7 R }5 t7 [7 X5 y; rb) 针对保护电流为16A以上的产品,voltage drop不能超过2.5V,是吗? |
|