Combined LV and HV Electrical Safety Training - Canada (CSA Z462)

Why Canadian Employers Need LV and HV Safety Training

CSA Z462 is Canada’s workplace electrical safety standard. It requires that workers be trained to recognize electrical hazards and to apply the safe work practices their tasks require. Provincial OHS regulations set legal duties for working on or near energized equipment, such as Ontario Regulation 851 and WorkSafeBC OHS Regulation Part 19. Regulators and courts look to CSA Z462 when judging whether an employer exercised due diligence.

Most workplace training stops at 600 volts. This course also prepares workers for the medium- and high-voltage equipment found in plants, campuses, utilities and substations, where the hazards and work procedures are different.

Day One – Low Voltage Arc Flash and Shock Safety (CSA Z462)

• Arc flash and shock hazard recognition, and the effects of current on the body
• Risk assessment and the decision to lock out or work energized
• Energized electrical work permits and job briefings
• Shock protection boundaries: limited and restricted approach
• Arc flash boundaries, incident energy and PPE category selection
• Arc-rated clothing, ATPV and EBT ratings, and building a PPE program
• Lockout/tagout and establishing an electrically safe work condition
• CEC Rule 2-306 shock and arc flash warning labels
• DC safety practices for batteries and battery rooms (CSA Z462:24)

Day Two – Medium and High Voltage Electrical Safety

• Hazards of switchgear, breakers, transformers, instrument transformers and capacitors
• Hierarchy of controls: engineering, administrative and PPE
• Reading single-line diagrams and writing safe switching sequences
• Isolation, lockout and person-in-charge responsibilities
• Temporary protective grounding, step and touch potential, and induced voltage
• Minimum clearances and limits of approach for HV equipment
• Working with HV test equipment and insulated aerial devices
• Substation safety and work involving multiple authorities

Learning Outcomes

• Recognize LV, MV and HV hazards and the conditions that cause shock and arc flash injuries
• Apply CSA Z462 risk assessment, approach boundaries and PPE selection
• Establish an electrically safe work condition through lockout and verification
• Develop and validate switching sequences from single-line diagrams
• Install and maintain temporary protective grounds
• Meet CSA Z462, Canadian Electrical Code and provincial OHS training requirements

Frequently Asked Questions

Is CSA Z462 mandatory in Canada?

CSA Z462 is a voluntary standard unless a jurisdiction adopts it by reference. However, provincial OHS laws require employers to protect workers from electrical hazards, and CSA Z462 is the accepted benchmark for meeting that duty.

Who needs LV and HV electrical safety training?

Anyone who operates, maintains or works near electrical equipment above 750 V, as well as low-voltage workers whose tasks expose them to arc flash or shock hazards.

Does the course include a copy of CSA Z462?

No. Copies of the standard must be purchased separately from CSA Group.

What do I receive?

A certificate of completion, 1.2 CEUs, a 100-page electrical safety handbook and the course presentations in PDF.

Related Courses

• Electrical Safety Training Courses

• Electrical Safety For EHS Managers

• Electrical Safety Program Development

• OSHA Lockout Tagout (LOTO)

• Electrical Safety For Non-Electrical Workers

• Arc Flash Channel