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

小米

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

DSH 593 3 {# w1 z7 G: j/ X

New glow wire test requirments (650 C) for parts close to contacts 7 I2 @4 w$ ^/ ^/ i/ h4 k

Clause 7.1.1.1 of IEC 60947-1 Clause 21.1.5 of IEC 61058-1

61058-1(ed.3) & 60947-1(ed.4)

Standard(s)- (year and edition):
IEC 60947-1:2004 IEC 61058-1:2000
% I+ e) w& H3 |9 o% S' W3 SSub clause(s):
- ^2 ?0 P+ @' OClause 7.1.1.1 of IEC 60947-1 Clause 21.1.5 of IEC 61058-1
  F  O5 {: p( h& ~# k1 A2 E9 ~Sheet n°:
. ]7 }1 I" {7 C) b9 G) CDSH 593
* N& m( M' b5 R# vSubject:
New glow wire test requirements (650 °C) for parts close to contacts
Key words:
! R  e9 z- E* R. L" n( M0 S# V) p- glow wire
1 ^* p( O# E% }2 k7 C! ?- NDecision approved by the 44th CTL meeting 2007
: K: E; l( T: P7 QQuestion:
' [- y7 U* \) c- x8 a6 [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?
. A" f5 J4 S' `# `) a# J% n/ X( gDecision:
Although 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.
$ a- n& X6 {% g. ?' Y
* g+ t9 l0 a9 k8 L8 W* k9 h( |