|
以下引自EN 60968-2000; f6 U6 c1 d8 U' A; [
, g; t8 M N3 x% z. O7 I" W6 Protection against electric shock L- D5 S6 S7 N; e! v+ m% ~
" A+ f2 l: ? }- x2 x: Y" _! }Self-ballasted lamps shall be so constructed that, without any additional enclosure in the form of a luminaire, no internal metal parts or live metal parts of the lamp cap are accessible when the lamp is installed in a lampholder according to Publication 238.8 h# H: ?7 f- |
7 I( i! `+ v2 L. CCompliance is checked by means of the test finger specified in Figure 1, if necessary, with a force .
d, Q% O* v2 Z9 U5 G. D9 W. j3 D( v4 I
灯头部分的“防电击”,偶清楚了,“no internal metal parts or live metal parts of the lamp cap are accessible when the lamp is installed in a lampholder ”
1 \$ {. h6 o5 M; i. r1 u: e; N7 O0 z$ c- ~! @9 ^
但和灯头相邻的外壳部分呢?
: ?! O% r+ W: ]! V( s) D6 `* }3 J' \
& U! }7 m5 W4 ?$ ~6 U" O如果外壳露出了危险电压部件,该如何计算“电气间隙和爬电距离”呢?, ], ^3 h3 b& j' e
; a% s/ S& @* i( P* S* x外壳允不允许开孔?开孔的尺寸有什么要求?) j( q4 r# x) p4 `, f
( O7 t# w4 K6 M) |- \(EN 60968中可没答案呀) |
|