C22.2 No.77-1988

1. Scope 1.1 This Standard applies to ac and dc motors with inherent overheating protection designed to be used in accordance with the Rules of the Canadian Electrical Code, Part I, as follows: (a) motors with a voltage rating not exceeding 600 V and with a protective device connected in the motor circuits; (b) impedance protected motors with a voltage rating not exceeding 600 V; and (c) motors with a voltage rating not exceeding 5000 V and having a protective device connected in an external control circuit with a voltage rating not exceeding 600 V. 1.2 This Standard applies to motors with protective devices that are responsive to (a) motor temperature alone; or (b) motor temperature and motor current passing through the device. 1.3 These requirements supplement those in CSA Standard C22.2 No.100. 1.4 This Standard does not apply to motors with protective devices that are responsive to current alone. 1.5 This Standard does not apply to sealed (hermetic) type motor compressors with inherent overheating protection.