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Standard(s):
. ?; b. {$ h4 `! u4 z+ a) m* T& vIEC 60598-2-20/2010
6 H% ?: M9 H4 W9 |+ _Subclause(s): 20.7.4
7 d: ?: }+ F: UNo. Year PDSH 0957 2010
" [: j& F8 r% q6 V6 g& ECategory: LITE Developed by: ETF5 OSM/LUM
% B( T1 V2 L* u( P9 v& WSubject:
1 J6 j7 i# e0 I* v! j1 ^Construction8 I: p. a7 G# S0 K0 }% F! [
Key words:
. X5 j M& ^- R0 \- Connections, B9 j- i9 K- C4 U; `% V& r* B
- Rope light
4 ], x5 f* o& M# M- Current carrying parts# _4 ~3 q: L3 V+ F
To be approved at the 49th CTL Plenary Meeting, in 2012; y* p, C3 K+ A ^1 n
Question:" e! G9 @( E. I" o# k
In clause 20.7.4 of IEC 60598-2-20, it is mentioned that only 4.11.4 and 4.11.5 of clause 4.11 apply for
" J4 y0 ^% f$ @& oelectrical connections and current carrying parts. Sub-clause 4.11.1 (contact pressure through insulating
( A# u8 I& I7 z. O4 Qmaterial) does not apply. In a rope light connecting system we often have connections with pins that are
% h1 W" n* [. ]stuck axially into the bare wires after cutting the lighting tube. This is contact pressure through insulating
. q0 D- ]. H; q- I( [6 Wmaterial. With about 16 W/m and a length until 100 m we can have a current more than 6 A at the# o1 q+ ?6 J5 y
connecting part. With those connections we have a high risk of fire. § 20.7.4 of IEC 60598-2-20 applies, in6 W. l' h, x4 S9 `
our opinion, to the connection to the lamp only (e.g. connection to Edison lampholders with insulating
2 H4 @8 H. ?2 R( |( X4 X# ?piercing terminals). Perhaps we can follow IEC 60335-1 - § 28.2 (contact pressure through insulating
; N$ v+ ]1 l- ?8 Q( V4 g- ~ R3 dmaterial – 0,5 A limitation for the current). We have also informed our National Standard Committee about* R: V& `* q! t# e6 Z
the matter.
1 j; t2 d( P5 w) J" `1 TDecision:. g2 j# W$ B0 S( [6 a" Z
The connection is not acceptable due to the requirements of Section 15 of IEC 60598-1.- n4 Y% c# d, }* d1 ~3 M0 B
4 v$ ]6 V o$ T' x1 o- C8 @
% A$ v6 a% H5 j1 x) ?% s9 [
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发表于 2012-9-16 15:27
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