This standard is applicable to heat tracing cables, heat tracing cable sets, and their related components that are intended (a) to provide supplemental heat to maintain or raise the temperature of a pipe, vessel, instrument, or related equipment; (b) for permanent installation in class 1, groups a,b,c,and d, divisions 1 and 2; class II, groups e,f and g, divisions 1 and 2; and class III hazardous locations in accordance with the Canadian Electrical Code Rules, part I. (c) for permanent installation of gaseous mines in accordance with the requirements of CSA standard CAN3-M42r1, use of electricity in mines.