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d) 1) For luminaires without drain holes, there shall be no water entry.' y8 x% u2 Y5 Q- P
NOTE Care should be taken not to mistake condensation for water entry.9 ^! G; C$ n! J
2) For luminaires with drain holes, water entry including condensation is allowed during the
5 ?1 D# f& Y, ^0 Z9 Q3 ^tests if it can drain out effectively and provided it does not reduce the creepage and
& I1 X) @* s6 \" y; l! qclearance distances below the minimum levels specified in the standard;
& V% T; T. V. v8 f# ?2 A- [, i' v1 [# j: n& z+ \) e9 Q
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。
6 l1 t7 m, Z& g0 S* O7 m6 A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; $ j, ]3 B1 C, }+ [: _* i, H* d
从标准上看,你的IP44没问题,凝露水不算进水。 |
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