PDSH 957 Construction

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广东安规检测
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小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

PDSH 957 ' t7 `7 H+ L$ b: G6 q* z

Construction # M1 T7 h/ _8 ~5 R, E6 \! N

20.7.4 3 L1 @. {) P; f3 ?

60598-2-20(ed.3) 9 ~1 _* U4 z6 Q! G1 U

/ G$ \& x5 f1 ^* H0 Q& q2 D; S( @Standard(s):
% r& a" e# F8 uIEC 60598-2-20/2010
8 f$ {2 y5 P9 _" h! a' FSubclause(s): 20.7.4
. K7 @. p. C7 p2 V+ T/ [  ^No. Year PDSH 0957 2010
Category: LITE Developed by: ETF5 OSM/LUM
9 v$ J0 J( `1 _- A" nSubject:
Construction
/ o* i% Y: x: d- I5 R0 b$ w: ]Key words:
7 F* ]/ F7 h. `! c. u- Connections
- Rope light
- Current carrying parts
To be approved at the 49th CTL Plenary Meeting, in 2012
Question:
, a6 W# u" H6 D9 d2 rIn 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
electrical connections and current carrying parts. Sub-clause 4.11.1 (contact pressure through insulating
material) does not apply. In a rope light connecting system we often have connections with pins that are
7 m1 f3 a  v, b1 h1 ]5 Ustuck axially into the bare wires after cutting the lighting tube. This is contact pressure through insulating
material. With about 16 W/m and a length until 100 m we can have a current more than 6 A at the
. M3 a1 `3 `' H& }) e* q1 h4 Tconnecting part. With those connections we have a high risk of fire. § 20.7.4 of IEC 60598-2-20 applies, in
our opinion, to the connection to the lamp only (e.g. connection to Edison lampholders with insulating
piercing terminals). Perhaps we can follow IEC 60335-1 - § 28.2 (contact pressure through insulating
material – 0,5 A limitation for the current). We have also informed our National Standard Committee about
9 T7 s- t8 |# p7 ^. C) v. mthe matter.
! c# H8 R3 Z" V8 e' o  M8 TDecision:
. e; v! y( |7 Y; @/ FThe connection is not acceptable due to the requirements of Section 15 of IEC 60598-1.

6 W  ?6 Y# N* \' G/ [