PDSH 957 Construction

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广东安规检测
有限公司提供：

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

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Construction

20.7.4

60598-2-20(ed.3) % Z' _' L4 `* {

' {9 |# q, f9 y+ z! bStandard(s):
IEC 60598-2-20/2010
Subclause(s): 20.7.4
8 f, `. `+ x3 J2 L) N8 J' KNo. Year PDSH 0957 2010
Category: LITE Developed by: ETF5 OSM/LUM
Subject:
2 a( J5 n: a; }. UConstruction
' A+ v% j4 D3 ~/ Q! YKey words:
/ V/ b, v' T. z$ J! A% A: @# i- Connections
5 ^) X3 c/ k$ j* _% [; o( w- Rope light
& t5 l8 ]( E* K5 v& Z' {# T, Z- Current carrying parts
To be approved at the 49th CTL Plenary Meeting, in 2012
Question:
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
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
stuck axially into the bare wires after cutting the lighting tube. This is contact pressure through insulating
- M' I5 R5 d/ E: a, i, Pmaterial. With about 16 W/m and a length until 100 m we can have a current more than 6 A at the
connecting 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
the matter.
6 ?/ J+ t2 _, R1 D0 k( U1 HDecision:
The connection is not acceptable due to the requirements of Section 15 of IEC 60598-1.

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