Scope
1.1
This Standard applies to the construction and test of motors and generators for use in hazardous locations: Class I, Groups C and D, and Class II, Groups E, F, and G and gaseous mines; and for installation and use in accordance with the rules o f the Canadian Electrical Code, Part I and CSA Standard CAN3- M421, Use of Electricity in Mines. Note: The term machine throughout this Standard may be assumed to mean motor or generator.
1.2
This Standard applies to machines intended for use in ambient temperatures of
(a) -50 to +40°C for Class I, Groups C and D, and Class II, Groups E, F, and G;
(b) 0 to +40°C for gaseous mines.
