DSH 108 Screws and connections

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 108 $ e+ ]) d3 T$ u" u$ f2 a0 {, ^ % g$ V1 |0 k: I$ \4 R2 x

Screws and connections / ^; A- Z  w( J6 j1 o' A- p  c% V

28.1 8 f  e: ?4 H( t9 f  g2 W& E

60335-1(ed.3) 6 y, H& z% n+ s5 \

Standard:
IEC 60335-1: 3rd ed. 1991
; x( [# h* Q$ A% r& j3 P, X( lSub clause: 28.1 Sheet n°: 108
1 \% y" D5 L' p6 eSubject: Screws and connections Key words:
- screws in engagement in insulating material
Decision of: 23rd CTL meeting to be reaffirmed at 39th meeting.
& w, C, ^3 p  _* M; J3 m: fQuestion:
) c! [( X% S6 @) k! o- {Shall the torque test on screws, where the screws thread into insulating material, be carried
out 10 times consecutively or with a pause between each time?
Decision:
. d  o2 b  {" v- {& B6 dThe test should be performed with a pause between each time for adequate cooling time
between each torque test
# F' \5 j$ S8 z/ E' k! @
4 q0 \: F. Z7 ~, `