DSH 593 New glow wire test requirments (650 C) for parts close to contacts

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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

DSH 593 4 Q- C  w+ K6 U: }; P( ~( Q

New glow wire test requirments (650 C) for parts close to contacts

Clause 7.1.1.1 of IEC 60947-1 Clause 21.1.5 of IEC 61058-1 ) o, G0 C- M1 b+ x- E) e

61058-1(ed.3) & 60947-1(ed.4) . e) c' P+ k: ^5 i. X( E

: a( g& U9 t9 e3 SStandard(s)- (year and edition):
5 n4 |- }; x5 \  sIEC 60947-1:2004 IEC 61058-1:2000
Sub clause(s):
Clause 7.1.1.1 of IEC 60947-1 Clause 21.1.5 of IEC 61058-1
Sheet n°:
DSH 593
Subject:
& w7 K  m: D; GNew glow wire test requirements (650 °C) for parts close to contacts
( O$ \( }9 B2 I1 m8 c) y+ JKey words:
9 Y* @+ m: V' v- G- glow wire
Decision approved by the 44th CTL meeting 2007
/ X- y9 b7 F) F6 k% GQuestion:
; Z3 a. z/ M9 O1 o5 w8 Y, ^Due to the new requirements of 60947-1:2004, parts close to contacts are subject to glow wire test performed at temperature of 650 °C. Is a glow wire test necessary for the green part (figure 1) or isn’t a glow wire test required for this part?
Decision:
* ]$ {2 |: B0 ?0 _" |5 VAlthough the green part (figure 1) of this switch is mechanically separated from the contact element, the glow wire test should be done with 650 °C. During normal operation, the switching element and the contact element are mounted together. Due to this fact and the relatively large amount of material, a test should be done.

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