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songbolove 发表于 2012-2-13 10:31 2 I; ~. L$ j, u4 d! c
基本绝缘的供电电线是可以接触安装表面的。
" |: U1 u; D# F5.2.2 Supply cords used as a means of connection to the supply, when supplied by the
! C! j- ~' w) Vluminaire manufacturer, shall be at least equal in their mechanical and electrical properties to
, n5 I+ @- Y: T/ f. [, [those specified in IEC 60227 and IEC 60245, as indicated in Table 5.1, and shall be capable of) A4 Q* v5 T5 j0 e( Y- O+ S
withstanding, without deterioration, the highest temperature to which they may be exposed
/ R1 j+ T# ?- |$ ]2 e/ Sunder normal conditions of use.- t! J% T$ V1 L) G$ Y
Materials other than polyvinyl chloride and rubber are suitable if the above requirements are5 l0 D! S, `, b9 H0 I# D
met, but in such cases, the particular specifications of part 2 of the above publications do not
% ]. z1 H. w4 a* i4 E/ }& Lapply.
, u8 f. [& ^* I* MTable 5.1 – Supply cords
) r% @8 ]7 K0 J, xLuminaire Rubber PVC$ Z( K- L0 M* ?" v9 q' g$ R1 A
Ordinary class I luminaires 60245 IEC 89 60227 IEC 52
3 @- q" E9 m! C1 d, YOrdinary class II luminaires 60245 IEC 53 60227 IEC 526 n* @% |5 l4 A7 k7 J& ]
Luminaires which are other than ordinary 60245 IEC 57 –/ x2 ?$ @1 M! k! Y1 X: ~
Portable rough service luminaires 60245 IEC 66 –
/ a+ e, q: ?9 {- F' zNOTE For supply voltages greater than 250 V, higher voltage grade cables and cords than those given in the7 H! @' C2 i. r( ]
above table may be necessary.& I- Y1 b H# w4 q; D, w
To provide adequate mechanical strength, the nominal cross-sectional area of the conductors/ l, F1 M# E8 N
shall be not less than:0 }4 O5 V z5 L
– 0,75 mm2 for ordinary luminaires;9 o8 ]7 {0 A: h; ~
– 1,0 mm2 for other luminaires.
( q/ n7 @9 u8 P* ZIf the luminaire is provided with a 10/16 A socket-outlet, the flexible conductor nominal crosssection
+ P/ G6 E. {4 v3 \3 m g8 S" earea shall be at least 1,5 mm2. |
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