This is the second edition of No. 0.5 of a series of Standards issued by the Canadian Standards Association under Part II of the Canadian Electrical Code. It supersedes the previous edition published in 1979. This Standard is part of the Requirements for Safety of Electrical Products segment of CSA's Electrical program and is identified as such by the Electrical symbol on the front cover.
This edition incorporates the following Electrical Bulletins:
Number Date Title
1307 March 19, 1981 Threaded Conduit Entries for Enclosures Other Than For Class 1 Division 1 Locations
1308 March 19, 1981 Threaded Conduit Entries for Class I Division 1 Enclosures
1308A June 17, 1982 Threaded Conduit Entries for Class I Division 1 Enclosures
For general information on the Standards of the Canadian Electrical Code, Part II, see the preface of the latest edition of CSA Standard C22.2 No. 0, Definitions and General Requirements.
This Standard was prepared under the jurisdiction of the Standards Steering Committee on CE Code, Part II and was formally approved by this Committee.
Rexdale, December, 1982Note: Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the user of the Standard to judge its suitability for his or her particular purpose.
CSA Standards are subject to periodical review and suggestions for their improvement will be referred to the appropriate committee.
All enquiries regarding this Standard, including requests for interpretation, should be addressed to Canadian Standards Association,
Standards Division, 178 Rexdale Boulevard, Rexdale (Toronto), Ontario M9W 1R3.
Requests for interpretation should:
(a) Define the problem, making reference to a specific Clause, and, where appropriate, include an illustrative sketch;
(b) Provide an explanation of circumstances surrounding the actual field condition; and
(c) Be phrased, where possible, to permit a specific yes or no answer.
Interpretations are published in CSA Information Update. For subscription details and a free sample copy, write to CSA Information Centre or telephone (416) 744-4058.1. Scope
This Standard applies to equipment for installation and use in accordance with the Rules of the Canadian Electrical
Code, Part I, other than conduit couplings.
This Standard includes basic construction and inspection requirements for the threaded entry for conduit into an
electrical enclosure in order to assure:
(a) The adequacy of a grounding path provided by rigid metal conduit in accordance with the Rules of the Canadian Electrical Code, Part I; and
(b) That threaded conduit entries are unlikely to cause damage to the insulation of conductors that are installed in a raceway of rigid metal conduit in accordance with the Rules of the Canadian Electrical Code, Part I.
Note: In Clause 1.2 the word enclosure is used to include a variety of structures with an enclosing function, whether constituting part of a
raceway or an enclosure (of a switch, for example).
This Standard does not include requirements for construction material, design proportions, protection against corrosion,
and other matters that are more appropriately included in the scope of individual Standards applicable to specific