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songbolove 发表于 2012-2-13 10:31 
4 I6 N! D- [, a& }/ X基本绝缘的供电电线是可以接触安装表面的。 , h ^1 Y2 _2 N4 K8 W* s$ y6 Q
5.2.2 Supply cords used as a means of connection to the supply, when supplied by the
0 [8 X$ M! Q" v* ` ?luminaire manufacturer, shall be at least equal in their mechanical and electrical properties to
' ^7 E& S+ Q! d. }$ W/ bthose specified in IEC 60227 and IEC 60245, as indicated in Table 5.1, and shall be capable of0 A% n4 P, b. o7 v
withstanding, without deterioration, the highest temperature to which they may be exposed- |; g6 I7 V' `* r# N
under normal conditions of use.
, ^, W( x& B4 f- _Materials other than polyvinyl chloride and rubber are suitable if the above requirements are
/ D7 y& T: V3 H( \met, but in such cases, the particular specifications of part 2 of the above publications do not
: _; p6 p6 m( q6 K! H4 Kapply.
- c9 i" y) o" E! p+ U) q% `- g8 VTable 5.1 – Supply cords
7 |8 K; m% g B1 j- ELuminaire Rubber PVC; P2 ^) q* y) \# |' X
Ordinary class I luminaires 60245 IEC 89 60227 IEC 526 c5 T U1 |- I2 f
Ordinary class II luminaires 60245 IEC 53 60227 IEC 52
# K! d1 f' A* v. tLuminaires which are other than ordinary 60245 IEC 57 –! f r) G0 Z/ m n- ^
Portable rough service luminaires 60245 IEC 66 –
5 U1 ?6 b- j& M g/ qNOTE For supply voltages greater than 250 V, higher voltage grade cables and cords than those given in the
& b1 b- Q% f* {9 `above table may be necessary., ?% J8 n E2 Y$ D
To provide adequate mechanical strength, the nominal cross-sectional area of the conductors
! |) {$ J9 |9 Xshall be not less than:! A2 G/ ~; w- j3 G/ x M3 g4 y
– 0,75 mm2 for ordinary luminaires;
* y- d+ I3 ^1 m7 H y– 1,0 mm2 for other luminaires.
$ k1 e- |0 T/ k% R! r; D2 hIf the luminaire is provided with a 10/16 A socket-outlet, the flexible conductor nominal crosssection
& a6 W$ o$ O ^ `! P$ G' t, Harea shall be at least 1,5 mm2. |
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