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3.接地连续性测试,简单测了个电机的,其他连接的点嫌费事,就没测 , t, [, w$ `# v
接地连连续性要测试所有裸露表面,除非是肯定的可靠接地.
/ o7 H2 C& c0 j; p5 [4 K. _2 cLocation Current(A) Frequency(Hz) Measured voltage(V) Limit(V)
/ B' K, ?" n. R) n8 [% eBetween incoming 8 ?3 O0 k1 F* T3 ]2 H c
PE terminal and 7 d7 v$ j$ W( L5 n) k
relevant points
5 Q/ q% V \2 Z, t" k7 Sthat are part of
$ f, K" q4 u0 Q) ythe protective
8 O6 p3 ^% R I% R6 zbonding circuit
. v. ?1 K; d4 r' d$ [PEФ>1.0 mm2 10A 50Hz --- <3.3V {8 z2 ?3 j h; A8 R9 Y+ K
PEФ>1.5 mm2 10A 50Hz --- <2.6V; ^; V. c8 |" a+ |/ F
PEФ>2.5 mm2 10A 50Hz --- <1.9V
/ X8 _9 X: d) J$ U+ gPEФ>4.0 mm2 10A 50Hz --- <1.4V, \* |+ _% U1 D6 F0 Y# D5 U
PEФ>6.0 mm2 10A 50Hz --- <1.0V |
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