Update #1 was published as notification that this is now a National Standard of Canada.
Updates #1 and 2 to this standard are available.
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This Standard specifies the requirements for heating cables, cable sets, and surface heating device sets for use on system voltages not exceeding 750 V for installation in accordance with the Canadian Electrical Code, Part I. It applies to heating devices installed on or in metal and non-metallic pipes, tanks, vessels, and related equipment and to various surface heating applications. It also specifies the requirements for heating devices that are for use in hazardous locations.
Typical applications include
a) the protection of pipes, tanks, and vessels, including fire protection systems, from freezing;
b) maintaining required temperatures on process equipment, including pipes, tanks, and vessels;
c) earth thermal storage;
d) hot water temperature maintenance;
e) surface heating in or under surfaces;
f) snow melting; and
g) de-icing of roofs and gutters.
This Standard does not cover devices intended to heat or to stress relieve pipes or vessels using eddy current, skin effect, or electric current passed directly through the pipe or vessel wall.
This Standard does not cover products that are within the scope of CAN/CSA-C22.2 No. 217.
This Standard does not cover heating elements using carbon ink dispersion.
In CSA Standards, is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; is used to express a recommendation or that which is advised but not required; and is used to express an option or that which is permissible within the limits of the standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Legends to equations and figures are considered requirements.