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9.2.2 Dust-tight luminaires (first characteristic IP numeral 6) are tested in accordance s8 l* g* k' e) O' I' ^
with 9.2.1.
) q4 _( n) c; aa) no deposit of talcum powder in dust-proof luminaires, such that, if the powder were
* z! J1 f/ [4 E- ^# Iconductive, the insulation would fail to meet the requirements of this standard;
$ j/ O1 {" ?' |9 Eb) no deposit of talcum powder inside enclosures for dust-tight luminaires;
" j- u0 P$ N6 c- C) }+ m1 l1.外壳开孔有粉尘沉积到里面会影响到电气间隙吗?- O! A4 g& Z4 ^, V/ Y, _& k$ g5 W' O4 C
2.散热孔里面的线就当做外部线处理,因为内部电线会接触到水和粉尘,所以不能用普通线。请看60598-1第五章表5.1.
! n( L }8 |, o% gLuminaires which are other than ordinary 内部线要用 60245 IEC 57
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5 f8 _# t/ D4 W# ]+ `3 k
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