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引用第25楼zihui于2007-08-28 11:46发表的 :
, a& P D' z4 X3 w还是不对,变压器属于POLLUTIOAN DEGREE3吗? 9 z! P4 \7 E, N: v2 X3 U7 D2 n* m
一般,變壓器屬於Pollution Degree 2
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Pollution Degree 3 是指有污染的地方。9 @0 N; N' B, a, c0 h2 x) h. q
# N1 M' \3 j' i& d. i0 k& S引用EN 60950-1-2006 clasue 2.10.1.2* p2 L# c1 @) u# o
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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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