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d) 1) For luminaires without drain holes, there shall be no water entry.
9 U+ h% V5 _- K" cNOTE Care should be taken not to mistake condensation for water entry.
8 Y" s' u4 J4 k5 i P5 b+ e4 B2) For luminaires with drain holes, water entry including condensation is allowed during the
- q) O N7 y% F; E' I* J* c9 Wtests if it can drain out effectively and provided it does not reduce the creepage and
/ B" B# h5 i4 K- h. O% W Tclearance distances below the minimum levels specified in the standard;: E. C$ T2 l" ?+ z) c" t0 d
$ e3 x4 s# j T3 H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。0 J6 p# N& Q" |* T$ H
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; 4 ]/ }# {4 n+ U/ K- {
从标准上看,你的IP44没问题,凝露水不算进水。 |
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