Historical
CSA Z462-2018
Workplace electrical safety
Preface
This is the fourth edition of CSA Z462, Workplace electrical safety. It supersedes the previous editions published in 2015, 2012, and 2008. This Standard is based on NFPA 70E, Standard for Electrical Safety for the Workplace, and has been harmonized with Parts I, II, and III of the Canadian Electrical Code; CSA Z460, Control of hazardous energy — Lockout and other methods; and CSA M421, Use of electricity in mines. This revised edition of CSA Z462 has been developed by CSA Group from the original edition as promulgated by the National Fire Protection Association. In addition to its initial source, it includes significant revisions by CSA Group. This Standard is fully the responsibility of CSA Group. The NFPA, holder of the copyright in this edition, takes no responsibility for any portion thereof. This Standard specifies requirements for and provides guidance on safety management systems, safe work procedures, and selection of personal protective equipment and other safety devices for persons exposed to hazards associated with energized electrical equipment. In addition, this Standard sets out criteria for the identification and training of qualified electrical workers and for determination of hazardous work to be performed only by those qualified individuals. By permission of the National Fire Protection Association, many of the clauses, tables, and figures in this Standard have been copied from NFPA 70E. CSA Group wishes to thank the NFPA for its support throughout the development of this Standard. In this 2018 edition, where a major change or addition to the previous edition of this Standard has been made, the clause, table, or figure affected is identified by the symbol delta in the margin. Users of this Standard are advised that the change markers in the text are not intended to be all-inclusive and are provided as a convenience only; such markers cannot constitute a comprehensive guide to the revisions made to this Standard. Care must therefore be taken not to rely on the change markers to determine the current requirements of this Standard. As always, users of this Standard must consider the entire Standard. The following is an overview of the major revisions to the 2018 edition: a) the definitions of arc flash hazard and shock hazard have been aligned with the definition of hazard (Clause 3); b) Clause 4.1.4 includes a new general requirement that hazard elimination be the first priority in the implementation of safety-related work practices; c) Clause 4.1.6 has several new electrical safety program requirements:- i) the requirement to inspect newly installed or modified equipment has been added to Clause 4.1.6.2; ii) risk assessment has been revised in Clause 4.1.6.8.3 to include human error; iii) the hierarchy of risk control in Clause 4.1.6.8.4 has been moved into mandatory text; iv) the requirement to perform and document job safety planning has been added to Clause 4.1.6.9; and v) the requirement to investigate electrical incidents has been added to Clause 4.1.6.10;
Scope
1.1 General This Standard specifies requirements for workplace electrical safety necessary for the practical safeguarding of workers during activities such as the installation, removal, inspection, operation, maintenance, and demolition of electric conductors and electric equipment, as well as work in proximity of energized electrical equipment. 1.2 Application While it can be applied by organizations of any type or size, this Standard does not cover: a) installations in ships, watercraft other than floating buildings, railway rolling stock, aircraft, and automotive vehicles other than mobile homes and recreational vehicles; b) installations of railways for the generation, transformation, transmission, or distribution of power used exclusively for operation of rolling stock or installations used exclusively for signalling and communications; c) installations of communications equipment under the exclusive control of communications utilities located outdoors or in building spaces used exclusively for such installations; and d) installations under the exclusive control of an electric utility when such installations- i) consist of service drops or service laterals, and associated metering; ii) are located in legally established easements or rights-of-way designated or recognized by public service commissions, utility commissions, or other regulatory agencies having jurisdiction for such installations; or iii) are on property owned or leased by the electric utility for communications or for metering, generation, control, transformation, transmission, or distribution of electric energy.
Content Provider
CSA America, Inc. [csa]
