|
|
d) 1) For luminaires without drain holes, there shall be no water entry.
* d' e, n8 m: b8 v2 dNOTE Care should be taken not to mistake condensation for water entry.1 W5 Q& {: T. r9 j* @6 _) @! S+ P
2) For luminaires with drain holes, water entry including condensation is allowed during the1 V* _3 m/ b2 T# A
tests if it can drain out effectively and provided it does not reduce the creepage and
; D* @) O! m6 U$ S) ?- E; xclearance distances below the minimum levels specified in the standard; |& c% W# a% B1 A
- U3 i1 C h3 ]6 X% W0 O! ]6 [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 H# R" J6 N1 |1 l# z+ x; ~; C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; 8 }/ G( I$ h/ ? F
从标准上看,你的IP44没问题,凝露水不算进水。 |
|