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引用第25楼zihui于2007-08-28 11:46发表的 :. r8 c' f8 _1 D9 N2 g# y, H
还是不对,变压器属于POLLUTIOAN DEGREE3吗?
" b! Z4 |* i0 `; C: b一般,變壓器屬於Pollution Degree 2. u! A$ _$ X% ~" z+ P3 Q" Z. c
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Pollution Degree 3 是指有污染的地方。
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3 ~: }2 `3 P# }# U5 D" ]引用EN 60950-1-2006 clasue 2.10.1.25 c# ]# }! ~* x2 b# ^2 q, a
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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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