scope:

This Standard specifies the construction and testing of portable power cables normally used in applications where the cables are subject to frequent flexing and where installation is in accordance with CAN/CSA-M421 and/or the Canadian Electrical Code, Part 1.

The cable constructions specified in Clauses 4 to 8 of this Standard are suitable for use at a maximum conductor temperature of 90 °C under normal operating conditions in wet or dry locations, outdoors or in underground mines, and in rugged environments. The special cable constructions described in Clauses 9 and 10 are suitable for use at a maximum conductor temperature of 105 °C.

This Standard does not specify all types, sizes, and voltage ratings of portable power cables that may be required for particular applications.

In CSA Standards, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; "may" is used to express an option or that which is permissible within the limits of the standard; and "can" is used to express possibility or capability. 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. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

The values given in SI (metric) units are the standard. The values given in parentheses are for information only.