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看看I类灯具的定义,老老实实外壳接地吧。
0 x! R5 `* O3 @2 M1 X- Z% S: kclass I luminaire, x+ Q* _+ D4 q+ {6 X, H
luminaire in which protection against electric shock does not rely on basic insulation only, but
9 |. h" e! J% }& [3 a% Twhich includes an additional safety precaution in such a way that means are provided for the; K \# b% }7 M2 {
connection of accessible conductive parts to the protective (earthing) conductor in the fixed) l. x( p, C% T5 X3 w
wiring of the installation in such a way that accessible conductive parts cannot become live in
/ a, E. X( @+ X6 ? c! v1 o* V/ Pthe event of a failure of the basic insulation8 s- j( L; I: ~! U# s
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