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d) 1) For luminaires without drain holes, there shall be no water entry.. n5 k7 s) A: F* y, s2 Z/ L
NOTE Care should be taken not to mistake condensation for water entry.+ z2 @- r3 d# m6 u! _* Q
2) For luminaires with drain holes, water entry including condensation is allowed during the
$ } z( c- `, _' E6 Jtests if it can drain out effectively and provided it does not reduce the creepage and( P2 O( M5 a6 [6 W! h" i; V- K6 t
clearance distances below the minimum levels specified in the standard;- ^* E `' t, D+ I {0 M- Y& ]
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如果没有排水孔,不能有任何水进入灯具内部,应注意不要将凝露误认为是进水。1 L' q8 I- J( e; z8 a/ r( L
如果灯具内带有排水孔且水可以有效的排出,不会使爬电距离和电气间隙发生改变。水的进入包括凝露水是允许存在的;
* m3 X" ]! b+ E/ V从标准上看,你的IP44没问题,凝露水不算进水。 |
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