
Low-voltage switchgear and controlgear Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines
出版:Standards Australia

专家解读视频
Proposes rules for control units, that perform the switching functions in response to thermal detectors in incorporated in rotating electrical machines. Applies to systems comprising a positive temperature coefficient (PTC) thermistor detector having particular characteristics, and its associated control unit. Identical with and reproduced from Edition 1.0 (2003-05) of IEC60947-8.