DSH 470 Abnormal operation Appendix B
http://decisions.iecee.org/icons/ecblank.gif DSH 470
Abnormal operation Appendix B
B19.101 to B19.103
60335-1(ed.2)
Standard: IEC 60335-1:1976, 2nd Ed.
Sub clause: B19.101 to B19.103
Sheet No. DSH 470
Subject: Abnormal operation Appendix B
Key words: - electronic controls- electronic components
Decision taken at the 40th CTL meeting 2003
Question:
How are the test results evaluated when testing speed control units for series motors?
Rationale:
See question.
Decision:
Rapid reversal of the motor rotation and jumping of the appliance during short-circuiting of
the electronic control is checked during 1 complete cycle. The fault is introduced from the
beginning. The jumping is judged for the possible mechanical risk. After the test the
appliance is checked for consequential faults or breaks.
页:
[1]
