小米 发表于 2012-9-14 14:05

DSH 108 Screws and connections


http://decisions.iecee.org/icons/ecblank.gif DSH 108

Screws and connections
28.1
60335-1(ed.3)


Standard:
IEC 60335-1: 3rd ed. 1991
Sub clause: 28.1 Sheet n°: 108
Subject: Screws and connections Key words:
- screws in engagement in insulating material
Decision of: 23rd CTL meeting to be reaffirmed at 39th meeting.
Question:
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:
The test should be performed with a pause between each time for adequate cooling time
between each torque test


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