BS 4999-72:1972
Superseded
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Built-in thermal protection for electric motors rated at 660 volts a.c. and belowSpecification for general requirements for rotating electrical machines
Hardcopy
English
02-14-1972
07-23-2013
Classifies types of protection, specifies winding temperatures for steady overload and stalled conditions. Recommends thermistor reference temperatures. Characteristics for thermostats, thermistors and thermistor control units with appropriate tests. Thermistors are of positive temperature coefficient. An appendix gives typical characteristic curve.
| Committee |
PEL/2
|
| DocumentType |
Standard
|
| Pages |
0
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
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