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About This Item


Full Description


This is the first edition of CSA C22.2 No. 298, Medium and high voltage couplers. It is one of a series of Standards issued under Part II of the Canadian Electrical Code.

This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.


This Standard applies to locking-type, pin and sleeve type plugs, receptacles, power inlets, and connectors and associated integrated accessories (i.e., junction box), rated up to 1,200 amperes (for single-and multi-pole) and above 750 V to 35 kV volts ac, 50/60 Hz and which shall have one or more pilot contacts for multi-pole configuration and above 750 V to 1000 V ac or dc for single pole configuration. These devices are intended to provide portable power from branch circuits, or are for direct connection to the branch circuit in accordance with the Canadian Electrical Code, Part I, using portable power cables with copper conductors, for use in either indoor or outdoor, nonhazardous locations.

The products covered in this Standard are commonly, but not exclusively, used in the following applications:
a) open pit mining;
b) underground mining;
c) tunneling;
d) shore to ship power;
e) portable power equipment;
f) general industrial use; and
g) drilling.

This Standard does not apply to
a) products covered in CSA C22.2 No. 182.1;
b) products intended for use in hazardous (classified) locations; and
c) devices intended to be separated or connected under load.

The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.

In this Standard, "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; and "may" 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. Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.

Document History

  1. CSA C22.2 NO. 298:21

    High voltage couplers

    • Most Recent
  2. CSA C22.2 NO. 298:16 (R2020)


    High voltage couplers, Includes Update No. 1 (2019)

    • Historical Version