C22.2 NO. 327-18 (R2023)
HDPE conduit, conductors-in-conduit, and fittings
This is the second edition of C22.2 No. 327, HDPE conduit, conductors-in-conduit, and fittings, one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code. It supersedes the first edition published in 2016.
For general information on the Standards of the Canadian Electrical Code, Part II, see the Preface of CAN/CSA-C22.2 No. 0, General requirements — Canadian Electrical Code, Part II.
The major changes to this edition are the following:
a) dual wall conduit has been added;
b) connectors and bell ends have been added;
c) water absorption test has been added;
d) clarification on the height of the weight dropping on the low temperature test; and
e) changes in the minimum cell classification required.
This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.
This Standard was prepared by the Subcommittee on HDPE Conduit with Conductors, under the jurisdiction of the Technical Committee on Wiring Products and the Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the Technical Committee.
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 high density polyethylene (HDPE) conduit, HDPE conduit with conductors, and polyethylene dual-wall (PEDW) corrugated conduit, intended for use at a continuous operating temperature of 75 °C or 90 °C, for installation in accordance with the Rules of the Canadian Electrical Code, Part I, for direct burial or encasement in concrete or masonry in ordinary (non-hazardous) locations.
This Standard applies to fittings for HDPE conduit, HDPE conduit with conductors, and PEDW corrugated conduit. These fittings are not threaded and are intended to be joined together by other suitable means such as mechanical design or welding, excluding solvent welding.
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 (non-mandatory) to define their application.
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.