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楼主 |
发表于 2014-1-23 11:06
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"For accessories having three poles or more, the current during the test shall be passed through the phase contacts, where applicable. In addition, separate tests shall be made passing the current through the neutral contact, if any, and the adjacent phase contact and through the earthing contact, if any, and the nearest phase contact. For the purpose of this test, earthing contacts, irrespective of their number, are considered as one pole."
4 R1 [( t/ w$ N# n5 ^# J7 x+ B请问各位大神,这段话怎么理解? |
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