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CSA C22.1:24

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Canadian Electrical Code, Part I (26th Edition), Safety Standard for Electrical Installations

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Canadian Electrical Code, Part I (26th Edition), Safety Standard for Electrical Installations

Preface

This twenty-sixth edition of the Canadian Electrical Code, Part I, was approved by the Committee on the Canadian Electrical Code, Part I, and by the Regulatory Authority Committee at their June 2023 meetings. This twenty-sixth edition supersedes the previous editions published in 2021, 2018, 2015, 2012, 2009, 2006, 2002, 1998, 1994, 1990, 1986, 1982, 1978, 1975, 1972, 1969, 1966, 1962, 1958, 1953, 1947, 1939, 1935, 1930, and 1927. This edition contains important revisions to many Sections. Section 64 contains major revisions for energy storage and renewable energy systems, including a new Subsection for residential occupancies and updates to photovoltaic system requirements. Several important changes appear in Section 68, including new disconnecting means and bonding requirements for conductive pool infrastructure. Section 66 now requires ground fault circuit interrupter protection for receptacles placed in temporary installations such as tents for outdoor functions. Other significant revisions in this edition include the following

  • voltage definitions for dc circuit voltages have been revised in Section 0;
  • Section 2 sees the addition of new requirements for reduction of arcing fault clearing times and revisions to clarify use of ingress protection designations;
  • in addition to traditional AWG and kcmil sizes, use of conductors sized in mm2 are now recognized through revisions to Section 4 and a new Table;
  • load calculations for installations with electric vehicle supply equipment have been revised in Section 8 and simplified through the deletion of Table 38;
  • many new products and updates to wiring methods are recognized in Section 12, including sag and span requirements for overhead installations and new Rules for non-metallic jacketed cable;
  • sealing requirements have been substantially revised in Section 18 and Annex J18;
  • Section 36 now features rules for installation of high-voltage couplers (i.e., devices that provide a means to repeatedly join and separate portable power cables);
  • Table 11 has been formatted into two new Tables (11A and 11B) and made easier to use through a layout similar to Table 19;
  • an index and Annexes A.1 and A.2 of Appendix A have been reinstated;
  • Appendix K has been deleted; and
  • the word "allowable" has been removed from "allowable ampacities" throughout most of the Code. Many of the changes in this edition were developed by cross-functional working groups. Their work is gratefully acknowledged.

This Code 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

This Code applies to all electrical work and electrical equipment operating or intended to operate at all voltages in electrical installations for buildings, structures, and premises, including factory-built relocatable and non-relocatable structures, and self-propelled marine vessels stationary for periods exceeding five months and connected to a shore supply of electricity continuously or from time to time, with the following exceptions

  1. installations or equipment employed by an electric, communication, or community antenna distribution system utility in the exercise of its function as a utility, as recognized by the regulatory authority having jurisdiction, and located outdoors or in buildings or sections of buildings used for that purpose
  2. equipment and facilities that are used in the operation of an electric railway and are supplied exclusively from circuits that supply the motive power
  3. installations or equipment used for railway signalling and railway communication purposes, and located outdoors or in buildings or sections of buildings used exclusively for such installations
  4. aircraft
  5. and electrical systems in ships that are regulated under Transport Canada.

For mines and quarry applications, see also CSA M421. This Code and any standards referenced in it do not make or imply any assurance or guarantee by the authority adopting this Code with respect to life expectancy, durability, or operating performance of equipment and materials so referenced


Overview For over 90 years, CSA C22.1, Canadian Electrical Code (CE Code), Part I, has been developed and updated to better protect electrical workers and promote improved consistency in electrical installations across the country. Why should you buy the 2024 edition? Now in its 26 th edition, the CE Code, Part I includes many significant additions and revisions throughout, including the following: In support of existing Code Rules for safe maintenance of electrical systems, Section 2 now requires that means be provided and documented to reduce arcing fault clearing time for overcurrent devices rated 1200 A or more. The scope of Section 4 has been revised to clarify that the Section applies to both ac and dc systems. Section 6 has removed the permission for use of a bare neutral in consumer's service raceways. For all load calculations in Section 8, references to Table 38 have been replaced by a demand factor of 100%. Consequently, Table 38 has been deleted. New electrical products and installation techniques are reflected in each new edition of the Code. Section 12 now includes requirements for the installation and use of grade level in-ground enclosures. Section 12 also features several new and revised requirements for various wiring methods. Section 24 contains revisions and extended requirements to increase electrical safety for occupants and staff of health care facilities, including basic care areas, where such areas are designated for diagnosis, therapy, or care of children. Section 64 requirements for energy storage systems (ESS) have been refined and clarified. Section 66 now requires ground fault circuit interrupter protection for extension cords that might be plugged into a portable generator or portable power distribution equipment. Section 68 includes substantial revisions and new requirements associated with pool, tubs, and spas for the provision and location of disconnecting means. Did you know? The CE Code, Part I is developed with the participation of provincial and territorial authorities, manufacturers, educators, designers, conformity assessment professionals, and many industry experts. The Code is updated every three years to better protect electrical workers and help make electrical installations and maintenance safer. All paper copies of the CE Code, Part I include a free copy of the Electrical Code Quick Reference guide, offering easy access to the most-used Rules and tables. The 2024 Canadian Electrical Code will be available in print, digital PDF, mobile and web app formats, and in various packages, including the Code handbook and training. Learn more about the available formats and packages.
SDO CSA: Canadian Standards Association
Document Number
Publication Date Jan. 1, 2024
Language en - English
Page Count 973
Revision Level
Supercedes
Committee
Publish Date Document Id Type View
Jan. 1, 2024 CSA C22.1:24 Revision
Jan. 1, 2021 CSA C22.1:21 Revision
Jan. 1, 2018 C22.1-18 Revision
Jan. 1, 2015 C22.1-15 Revision
Jan. 1, 2024 CSA C22.1:F24 Revision
Jan. 1, 2021 CSA C22.1:F21 Revision
Jan. 1, 2018 C22.1-F18 Revision
Jan. 1, 2015 C22.1-F15 Revision