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回到未来 发表于 2017-3-26 12:58 
/ J9 v' N, ?' o$ g请教J大，dry/damp/wet跟indoor/outdoor，这两种概念之间是什么关系？
关于这三个概念，请参考如下：2 X: Q% T6 F0 K/ M$ H5 s7 b
Location, damp – an exterior or interior location that is normally or periodically subject to condensation
7 h0 ?8 A" T! Zof moisture in, on, or adjacent to, electrical equipment, and includes partially protected locations.5 t, _7 r8 D- Z7 G6 k& k* y
Location, dry – a location not normally subject to dampness, but may include a location subject to
: E( p& u1 P. R% Z$ ^& ptemporary dampness, as in the case of a building under construction, provided ventilation is adequate to
* b% S7 [# U9 t* J7 p9 G& lprevent an accumulation of moisture.) C) p' ]& T7 Q6 G( r4 f
Location, wet – a location in which water or other liquid can drip, splash, or flow on or against electrical6 E3 p/ D( x4 e: J# D
equipment.
) k t' S1 `+ \1 p- hINDOOR USE – Use in an indoor location or where wet contact is not likely to occur.
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发表于 2017-3-21 21:19
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发表于 2017-3-27 10:05
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防尘防水的要求跟室内比有区别。