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songbolove 发表于 2012-2-13 10:31 % [8 v* p8 ?3 _; ?, r
基本绝缘的供电电线是可以接触安装表面的。 L1 v$ P/ p& c' z" _6 `
5.2.2 Supply cords used as a means of connection to the supply, when supplied by the, D8 F* E& R1 g" f' j$ X
luminaire manufacturer, shall be at least equal in their mechanical and electrical properties to. K5 J' c/ d* G1 ^% e+ [! N N
those specified in IEC 60227 and IEC 60245, as indicated in Table 5.1, and shall be capable of* A. X! i3 Q- b! n, B1 a W" G0 T
withstanding, without deterioration, the highest temperature to which they may be exposed
; r9 M' ^$ `' X2 g7 e( G/ Yunder normal conditions of use.
3 u! J: o/ x" zMaterials other than polyvinyl chloride and rubber are suitable if the above requirements are
6 ]( V' \/ @6 Q3 W ?met, but in such cases, the particular specifications of part 2 of the above publications do not; u- Z% r, u- h
apply." P8 I6 Y( S( d
Table 5.1 – Supply cords9 p/ [% x4 t, b+ j( v2 ~
Luminaire Rubber PVC
3 h! `7 t% |% O5 c9 ~& ], Z+ g. e1 oOrdinary class I luminaires 60245 IEC 89 60227 IEC 52
4 H, _2 H5 Q. YOrdinary class II luminaires 60245 IEC 53 60227 IEC 52, v% c" b9 N( I4 q4 ^' t
Luminaires which are other than ordinary 60245 IEC 57 –
; t! z3 x$ s% @% s5 N/ b! rPortable rough service luminaires 60245 IEC 66 –
% F+ \: v$ s; t# y; ^. nNOTE For supply voltages greater than 250 V, higher voltage grade cables and cords than those given in the
6 D) \6 W' V" n) s0 wabove table may be necessary.- }3 s6 I' a; p3 |
To provide adequate mechanical strength, the nominal cross-sectional area of the conductors3 Z0 o @' K+ y5 w! J& g
shall be not less than:" [. N6 x/ Y0 [2 c3 y1 N
– 0,75 mm2 for ordinary luminaires;% \0 A+ V& [/ \8 L5 n
– 1,0 mm2 for other luminaires.7 f L q- [& G% J$ @# A3 p
If the luminaire is provided with a 10/16 A socket-outlet, the flexible conductor nominal crosssection
! F3 C& o2 h2 ~ F: parea shall be at least 1,5 mm2. |
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