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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 & J4 g/ Z$ I3 j6 W( K& y1 r4 `
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.# ^& @& ]! u, S, M5 q
Location Current(A) Frequency(Hz) Measured voltage(V) Limit(V)
; j& N# h* _+ r( b. p5 vBetween incoming
0 S8 I+ t( o" W- P1 G0 cPE terminal and 2 T% A3 v" _! e" c4 G4 ^1 {8 f
relevant points
3 L; N. p# a0 Y6 e4 Xthat are part of
- S, x* V, u" S0 w6 y) |8 bthe protective
9 b* X9 T. m$ j% lbonding circuit
+ n _" M+ E/ q$ q4 O# V0 lPEФ>1.0 mm2 10A 50Hz --- <3.3V$ `1 a1 e, |7 N
PEФ>1.5 mm2 10A 50Hz --- <2.6V: q$ L& }8 E: m, }$ C5 O, M
PEФ>2.5 mm2 10A 50Hz --- <1.9V; B. ?$ x1 g2 _- D5 v
PEФ>4.0 mm2 10A 50Hz --- <1.4V1 m- n0 g$ f+ g* g/ j/ x- P5 k$ K
PEФ>6.0 mm2 10A 50Hz --- <1.0V |
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