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引用第25楼zihui于2007-08-28 11:46发表的 :
: X! E; ?, l& B7 z2 G6 h% j+ I还是不对,变压器属于POLLUTIOAN DEGREE3吗?
! A5 A' b& V9 @5 C1 i& w* r9 O一般,變壓器屬於Pollution Degree 2/ A9 l; o. Q O* [
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Pollution Degree 3 是指有污染的地方。
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引用EN 60950-1-2006 clasue 2.10.1.2. _0 V& L# w0 t! t7 I, P
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Pollution Degree 3 applies where a local environment within the equipment is subject to conductive pollution, or to dry non-conductive pollution that could become conductive due to expected condensation. |
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