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songbolove 发表于 2012-2-13 10:31 
. x. Z s7 a9 ?2 ?& A( w9 ?基本绝缘的供电电线是可以接触安装表面的。
% S5 _+ e$ b7 C# p% @9 D! n5.2.2 Supply cords used as a means of connection to the supply, when supplied by the
3 E: u% B- @- X. s9 k% ~luminaire manufacturer, shall be at least equal in their mechanical and electrical properties to& `3 H. i" K$ t
those specified in IEC 60227 and IEC 60245, as indicated in Table 5.1, and shall be capable of% B% ^ {; Q0 w. [7 d
withstanding, without deterioration, the highest temperature to which they may be exposed
; N+ R, k% B5 O% @under normal conditions of use.! Y$ G8 A" a" c5 r# F3 h7 h$ I
Materials other than polyvinyl chloride and rubber are suitable if the above requirements are3 S! h; G& ~4 k# s) ^
met, but in such cases, the particular specifications of part 2 of the above publications do not3 z8 }( f2 G" E6 m
apply.
{) N- T# H9 {: |3 H' kTable 5.1 – Supply cords
8 P! G8 S6 L! X4 U. nLuminaire Rubber PVC
. j3 @$ B! O; x$ Z' v) ROrdinary class I luminaires 60245 IEC 89 60227 IEC 52, F* x0 S- ^/ W, a7 P3 p
Ordinary class II luminaires 60245 IEC 53 60227 IEC 52: P0 I7 h, J' j" }' i0 ~5 G) u# }
Luminaires which are other than ordinary 60245 IEC 57 –0 q3 t" {7 Q; v! }' T6 d1 ~( g
Portable rough service luminaires 60245 IEC 66 –% b+ D# F: ~, c; @
NOTE For supply voltages greater than 250 V, higher voltage grade cables and cords than those given in the
/ L0 h0 K. b" H& J" ^7 nabove table may be necessary.
2 p( s3 H1 C/ t6 I1 _! NTo provide adequate mechanical strength, the nominal cross-sectional area of the conductors. h! l4 |2 {# o0 c, f) f2 }' S
shall be not less than:
! e. Q* v: J; ~- V4 Q5 ~4 T0 r– 0,75 mm2 for ordinary luminaires;
6 V' C: e, _$ R( `" i0 W– 1,0 mm2 for other luminaires.$ t: j( N' X5 w8 Y1 X
If the luminaire is provided with a 10/16 A socket-outlet, the flexible conductor nominal crosssection* G. @ M- E5 e( R( U& H
area shall be at least 1,5 mm2. |
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