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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
! _$ z: M. i) M @, C9 P7 z0 [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.+ p0 L& M# a% w8 M _6 ]
Location Current(A) Frequency(Hz) Measured voltage(V) Limit(V). V. Q1 Z0 ]) G
Between incoming " x$ u( L }1 y7 P# F- y
PE terminal and
+ f6 D. U, R b, f! h- Nrelevant points
/ H2 u* j1 F W% F, _# u' r Ythat are part of
( q: \( ~7 e( a% f# H7 Othe protective 5 `; c) m' S, D# L
bonding circuit & j+ d: D0 A! X6 J* {
PEФ>1.0 mm2 10A 50Hz --- <3.3V6 Q/ \4 x8 [7 }! Z; X1 X$ S( k
PEФ>1.5 mm2 10A 50Hz --- <2.6V1 x9 L1 L8 h, A& ?5 v3 \
PEФ>2.5 mm2 10A 50Hz --- <1.9V
3 c: e( Z, [2 y# u9 X) h5 l+ \; OPEФ>4.0 mm2 10A 50Hz --- <1.4V
( K* l; _" \, l2 W, P$ [PEФ>6.0 mm2 10A 50Hz --- <1.0V |
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