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songbolove 发表于 2012-2-13 10:31 
* v; G" h; [2 k o1 ?# M* k基本绝缘的供电电线是可以接触安装表面的。 . D$ N2 _, b9 d% B/ W, N" E
5.2.2 Supply cords used as a means of connection to the supply, when supplied by the
/ O7 I! A# k% w# X; @luminaire manufacturer, shall be at least equal in their mechanical and electrical properties to2 ?8 P7 Y9 i/ J! @" {, n$ f
those specified in IEC 60227 and IEC 60245, as indicated in Table 5.1, and shall be capable of
* R L* i P' f( Fwithstanding, without deterioration, the highest temperature to which they may be exposed' P* Y5 Q0 R* P" F0 g7 r; I
under normal conditions of use.
0 `0 j2 n$ H. A! A& CMaterials other than polyvinyl chloride and rubber are suitable if the above requirements are
/ v: A& j0 `- Jmet, but in such cases, the particular specifications of part 2 of the above publications do not% S2 K! o+ R8 _3 p3 J7 i
apply." p3 a1 D# {5 l& q
Table 5.1 – Supply cords2 X' H$ e( Z$ L: t
Luminaire Rubber PVC
6 r: ~# v# B% {# Z8 ~* N7 t) nOrdinary class I luminaires 60245 IEC 89 60227 IEC 52! X! V. [: S" E% ^# K' C7 R
Ordinary class II luminaires 60245 IEC 53 60227 IEC 52
1 D- I9 N' b" A$ _Luminaires which are other than ordinary 60245 IEC 57 –1 z1 i- Q6 ]. m* `8 @, J# ?
Portable rough service luminaires 60245 IEC 66 –* P, Y3 N* v' V+ h1 W: S
NOTE For supply voltages greater than 250 V, higher voltage grade cables and cords than those given in the
; ^: X- ?5 D; C0 C3 R3 Gabove table may be necessary./ H& M5 I+ W |5 |) a
To provide adequate mechanical strength, the nominal cross-sectional area of the conductors
K9 R. @& a* ^% m( qshall be not less than:
) r0 i) C5 g5 y2 ~4 @1 V– 0,75 mm2 for ordinary luminaires; P6 w# V( t9 q4 E6 X2 w
– 1,0 mm2 for other luminaires.
" `$ V+ o) ^+ [( \8 [( {* Q% qIf the luminaire is provided with a 10/16 A socket-outlet, the flexible conductor nominal crosssection: S* b6 ?, p; M# b1 ]; ^5 T
area shall be at least 1,5 mm2. |
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