CSA C22.2 NO 191 2nd Edition, September 1, 1989
Engine heaters and battery warmers
Includes all amendments and changes through Reaffirmation Notice , 2009
Additional Comments: INCLUDES GENERAL INSTRUCTION 1,2 AND 3
Published By:CSA Group (CSA)
This Standard applies to cord-connected and permanently connected engine heaters and battery warmers for use on nominal system voltages of 600 V and less that are designed to be used in nonhazardous locations such as in passenger automobiles, light trucks, and heavy duty on- and off—road vehicles in accordance with the Rules of the Canadian Electrical Code, Part I.
This Standard applies to standard and heavy duty engine heaters, which include the following types:
(a) Internal and external coolant immersion;
(b) Internal and external oil immersion; and
(c) External surface.
The heavy duty classification also includes the oil—circulating immersion type.