Abstract

This Uganda Standard specifies rules for control units, which perform the switching functions in response to the thermal detectors incorporated in rotating electrical machines according to IEC 60034-11, and the industrial application. It specifies rules for that type of system comprising a positive temperature coefficient (PTC) thermistor detector having particular characteristics, and its associated control unit. (This Uganda Standard cancels and replaces US EAS 378-8:2005, Low-voltage switchgear and control gear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines, which has been technically revised). This standard was Published on 2012-11-14.