CSA Group CSA C22.2 No. 85:14 Rigid PVC boxes and fittings

Preface

This is the second edition of CSA C22.2 No. 85, Rigid PVC boxes and fittings, one of a series of Standards
issued under Part II of the Canadian Electrical Code. It supersedes the previous editions published in
1989 and 1968.

For general information on the Standards of the Canadian Electrical Code, Part II, see the Preface of
CAN/CSA-C22.2 No. 0.

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 Non-metallic Conduit, Tubing and Fittings, 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.

Interpretations: The Strategic Steering Committee on Requirements for Electrical Safety has provided
the following direction for the interpretation of standards under its jurisdiction: “The literal text shall be
used in judging compliance of products with the safety requirements of this Standard. When the literal
text cannot be applied to the product, such as for new materials or construction, and when a relevant
committee interpretation has not already been published, CSA's procedures for interpretation shall be
followed to determine the intended safety principle”.

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.
Notes:
1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.
2) 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 users of the Standard to judge its suitability for their particular purpose.
3) This Standard was developed by consensus, which is defined by CSA Policy governing standardization — Code
of good practice for standardization as “substantial agreement. Consensus implies much more than a simple
majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in
the Technical Committee list and yet not be in full agreement with all clauses of this Standard.
4) To submit a request for interpretation of this Standard, please send the following information to
[email protected] and include “Request for interpretation” in the subject line:
a) define the problem, making reference to the specific clause, and, where appropriate, include an
illustrative sketch;
b) provide an explanation of circumstances surrounding the actual field condition; and
c) where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the
issue.
Committee interpretations are processed in accordance with the CSA Directives and guidelines governing
standardization and are available on the Current Standards Activities page at
standardsactivities.csagroup.org.
5) This Standard is subject to review within five years from the date of publication. Suggestions for its
improvement will be referred to the appropriate committee. To submit a proposal for change, please send the
following information to [email protected] and include “Proposal for change” in the subject line:
a) Standard designation (number);
b) relevant clause, table, and/or figure number;
c) wording of the proposed change; and
d) rationale for the change.

1 Scope

1.1
This Standard applies to rigid unplasticized poly (vinyl chloride)* boxes and fittings of the following
types that are intended to be installed and used with rigid PVC conduit at a maximum working
temperature of 75 °C in accordance with the rules of the Canadian Electrical Code, Part I:
a) junction boxes with an interior volume of 1640 mL† or less that are intended to provide access to
wiring and to enclose splices and taps but not to support wiring devices;
b) conduit boxes with an interior volume of 1640 mL† or less that are intended to be used as pull
boxes but not to enclose splices and taps or support wiring devices;
c) surface mounted device boxes with an interior volume of 1640 mL† or less that are intended
primarily to support wiring devices but may also be used as a pull box or to enclose wiring joints;
d) box covers of the blank and device types;
e) expansion joints that are intended to compensate for the linear expansion of a span of rigid PVC
conduit;
f) junction box terminal adapters that are intended to connect a length of PVC conduit by an elbow
or other bend to a box;
g) female adapters that are intended to connect a length of PVC conduit to a length of rigid metal
conduit;
h) reducers that are intended to connect lengths of two different sizes of rigid PVC conduit;
i) caps that are intended to close the ends of unused lengths of rigid PVC conduit; and
j) bell ends that are intended to provide a bushed opening at the open end of a length of rigid PVC
conduit.
* For convenience, the shorter term PVC is used in this Standard.
† 1640 mL is the volume of trade size known as 100 cubic inches.

1.2
General requirements applicable to this Standard are given in CSA C22.2 No. 0, General Requirements —
Canadian Electrical Code, Part II.

1.3
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