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大家不要吵啦,看看OSM决议,只要是单独认证的就可以跨接在L-N之间,不管fuse前还是fuse后。$ b" ]. u. t# o! b$ a
如果是VDR跨接在mains-earhing,那么:7 m9 E5 c+ b6 Y0 k& Q" a
Varistors between mains and protective earth:& y* ?, b% N% e7 f
0 ]1 R9 t- A' y. v& {
1.For pluggable equipment, type A: Q* A' }1 [8 S7 V% W( k4 B
Accepted by all countries (when the varistor is separately certified) except Austria, Belgium, Denmark, Germany, Finland, Norway, Sweden, The United Kingdom
( ~4 \. `# v1 D. }/ L" g ?: I. a8 X$ F
2. For pluggable equipment, type B and permanently connected equipment connected to protective earth: - W2 t2 t5 c4 s3 G
Accepted by all countries (when the varistor is separately certified) |
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