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d) 1) For luminaires without drain holes, there shall be no water entry.
4 d t3 t: u P0 BNOTE Care should be taken not to mistake condensation for water entry.7 h6 K: G0 {7 P1 |
2) For luminaires with drain holes, water entry including condensation is allowed during the
) C# B' M1 I: ntests if it can drain out effectively and provided it does not reduce the creepage and" \" i& [9 A: K/ t9 Z
clearance distances below the minimum levels specified in the standard;
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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。
& p3 d# K% ]" n2 w0 X+ `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; 3 M/ U" M: s: I: i. S- J# \
从标准上看,你的IP44没问题,凝露水不算进水。 |
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