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|  PDSH 957
9 G2 E9 n C% Y
Y8 B4 K5 k+ ~9 s | Construction
5 }6 P5 N7 h0 S# b | 20.7.4
M& r# F2 C$ [1 R5 H5 E( @* q | 60598-2-20(ed.3): Y2 ^0 r1 K. F, ~- V
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Standard(s):& h$ m% x W0 w' E& ~3 {
IEC 60598-2-20/2010' L9 F; |9 ~5 `- Z# _
Subclause(s): 20.7.4
y: G0 v) B( ~' p3 ^6 j% N/ nNo. Year PDSH 0957 2010, E! ^0 X! H' ?5 e$ y* u
Category: LITE Developed by: ETF5 OSM/LUM
. m" u' V, Y4 x7 BSubject:
0 L* ?/ V# a. a8 ?. oConstruction
( B: v# f9 _1 F% d. D- uKey words:5 Q, W5 o% A6 {& s6 g# ?6 U
- Connections
' Q5 Z Z$ b- m- Rope light
5 z) w& u' _. [0 n" O3 [- Current carrying parts3 h( _, e% h% `. k; J. f; A2 v
To be approved at the 49th CTL Plenary Meeting, in 2012
5 \( x2 I8 Y8 G; LQuestion:
% h) c( ^( q6 t+ k+ k9 iIn 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) d. P2 O! a: y; N5 T) o7 E. N/ N
electrical connections and current carrying parts. Sub-clause 4.11.1 (contact pressure through insulating; Z. i* c8 `7 ?6 v( q
material) does not apply. In a rope light connecting system we often have connections with pins that are
+ H# i( @$ B6 w) C1 z3 z4 @* sstuck axially into the bare wires after cutting the lighting tube. This is contact pressure through insulating
! o* @3 P$ f. c: ]) @material. With about 16 W/m and a length until 100 m we can have a current more than 6 A at the
0 ~$ ?( V- r0 c- xconnecting part. With those connections we have a high risk of fire. § 20.7.4 of IEC 60598-2-20 applies, in
# ^2 }1 k* M* C% oour opinion, to the connection to the lamp only (e.g. connection to Edison lampholders with insulating* ^, R7 V& z9 R
piercing terminals). Perhaps we can follow IEC 60335-1 - § 28.2 (contact pressure through insulating. B C) {" Y* y6 K7 p
material – 0,5 A limitation for the current). We have also informed our National Standard Committee about- G& |8 K) X; w: m: o
the matter.. s, _- }( C! {+ ~$ C
Decision:
3 z! F- P2 E! k: Z" wThe connection is not acceptable due to the requirements of Section 15 of IEC 60598-1.
8 Y2 c5 ^3 ?) v1 I1 f
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y* _4 R: g7 Z3 B4 U% X! m& a |
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