Scope 1.1
This Standard specifies construction and testing requirements for mine power feeder cables normally used for power distribution in stationary or semi-stationary applications covered by CAN/CSA-M421 and the Canadian Electrical Code, Part I. 1.2
This Standard covers cables with voltage levels of 5, 8, 15, and 25 kV, rated at 100% and 133% insulation levels. 1.3
The cable constructions covered by this Standard are suitable for use at a maximum conductor temperature of 90 °C under normal operating conditions
(a) in wet or dry locations;
(b) outdoors;
(c) in underground mines; or
(d) in rugged environments. 1.4
This Standard does not specify all types, sizes, or temperature and voltage ratings of mine power feeder cables that can be required for particular applications. 1.5
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.