Preface
This is the third edition of CSA C22.2 No. 79, Cellular metal and cellular concrete floor raceways and fittings, one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code. It supersedes the previous editions published in 1978 and 1970.
For general information on the Standards of the Canadian Electrical Code, Part II, see the Preface of CAN/CSA-C22.2 No. 0.
This edition does not introduce significant technical changes. It represents an update of the standards references and conversion from imperial to metric units.
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.
Scope
1.1
This Standard applies to cellular metal and cellular concrete floor raceways and fittings that are intended to be installed in ordinary locations in accordance with CSA C22.1, Canadian Electrical Code, Part I.
1.2
This Standard does not include requirements for the structural aspects nor for the effect on the fire resistance rating of the floor in which the system is installed.
1.3
These requirements do not include any features that are related only to the function of cellular metal and cellular concrete floor raceways as structural members.
1.4
This Standard does not apply to underfloor raceways covered by CSA C22.2 No. 80.
1.5
This Standard does not apply to raceways installed on the underside of the cellular floor that are considered wireways covered by CSA C22.2 No. 26.
1.6
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.
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