|
hss1981530 发表于 2013-1-25 13:31 , s2 J# E5 X- s# \- l+ n
如果是全极开关呢?$ P0 h I' f8 v
单极开关的开合是属于正常测试的一部分的,不属于故障条件.
, f& c8 j! f, X1 k; |你说的对。
0 d. J* @6 V/ c, wFor each placement of the measuring instrument, any switches in the PRIMARY CIRCUIT and+ W9 |/ j: o: f/ w
likely to be operated in normal use are open and closed in all possible combinations.0 i8 D% n3 m# [5 s8 t0 r% E) n
After applying each test condition, the equipment is restored to its original condition, that is
' w/ R K* W6 ?. T( z: w' \without fault or consequential damage.
" q0 |! s* _6 N7 i7 ^# C全极开关就只有闭合/打开的状况。正常测试范围内要求。$ \' p$ f. z+ L+ |
没有要求在故障后的Touch Current 测试 |
|