CSA C22.2 NO. 193-M1983 (R2019)

This Standard applies to full-load interrupter switches for use at voltages from 751 to 48 300 V ac indoors, and for installation in switchgear assemblies (see CSA Standard C22.2 No. 31) or similar equipment for use indoors or outdoors, and at altitudes not exceeding 2000 m, in nonhazardous locations, in accordance with the Rules of the Canadian Electrical Code, Part I.