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要看灯串的具体情况而定。9 N7 a+ I, N' l5 ~ b; h' ]5 m2 g: h
60598-2-20 的20.10.1章节:$ Y' D& [1 E; Q% S) B$ R) r; N
The nominal cross-sectional area of the conductors shall be not less than one of the following1 v: A$ F O- @; X
values:
6 Y5 e* {, v. i) s% k: Ea) 0,5 mm2 for ordinary lighting chains with E5 or E10 lampholders or other small2 f. m5 ~ n( u' o9 \6 p }/ e1 v
lampholders.
1 F3 Z: }5 n; x: |! E" R6 v# ab) 0,75 mm2 for other lighting chains with E5 or E10 lampholders or other small lampholders,
: y. i+ N3 Z: X) x0 H& Z8 q- ~8 cand for lighting chains with E14, E27, B15 or B22 lampholders and fitted with seriesconnected8 K. e" ^! h4 }6 z3 }
lamps.$ a" t6 b% e! m& \" A2 C
c) 1,5 mm2 for lighting chains with E14, E27, B15 or B22 lampholders and fitted with parallel
* X) h& g i6 ?' P iconnected lamps.
+ R y* {( ]( j6 b1 @If the maximum rated wattage of class III lighting chains and parts of chains supplied by
; o5 p9 R# _/ tSELV is less than 50 W then the conductors of the internal and external cables may have a8 e4 g$ s6 [7 O6 g
cross-sectional area of 0,4 mm2 or less provided that the current-carrying capacity and the; T1 {; }" E. ]5 M5 B
mechanical properties are adequate. If the maximum rated wattage exceeds 50 W, the cables
- x P* p$ `4 o$ L) R& M& I1 vshall comply with 60227 IEC 42 (see asterisk above). If the wattage is less than 50 W the
2 j- z4 {" D. e. M; p5 a+ zinsulation of the cables shall comply with the requirements of 5.3.1 of IEC 60598-1.6 m" u" W4 j, U- a& T
For sealed chains, the internal conductors may have a cross-sectional area of 0,4 mm2 or less8 h7 [! z% S* {; `2 ~
provided the current-carrying capacity and the mechanical properties are adequate. In addition, h9 E( {' g/ [$ t! x6 f
conductors without insulation are accepted provided adequate precautions have been taken to G1 Z* R0 f* S3 `0 V
ensure maintenance of the minimum creepage distances and clearances and compliance with+ ?1 z) t0 y+ o: F) |# F5 Y+ z& L& _: u
the requirements of 5.3.1 of IEC 60598-1.& ^ l8 M+ D/ z- T: ^: f$ R
Compliance is checked by inspection, measurement |
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