Electrical Safety in Canada: Legislation & Requirements

Electricity is a common workplace hazard across nearly every industry in Canada, from construction sites and plants to offices and stores. Electrical safety is the set of rules, work practices and controls that protect workers from electrical hazards such as shock, burns, arc flash and electrical fires. Electrical installation and workplace safety requirements depend on the federal, provincial or territorial jurisdiction and the work being performed. Several jurisdictions write electrical training duties directly into law. This guide covers what electricity is, the main electrical hazards, what federal and provincial legislation actually requires (including who is allowed to do electrical work), and what electrical safety training needs to teach.

What is electricity?

Electricity is the set of physical phenomena associated with electric charge and its movement. In everyday and workplace terms, it usually means electric current, the flow of electric charge through a conductor. Electrical energy is generated by power plants, wind turbines, solar panels, and other sources and distributed through power grids to homes, businesses, and industries. Two common forms of electric current are alternating current (AC), which periodically reverses direction, and direct current (DC), which flows in one direction. Both can present hazards.

What are the key electrical concepts?

The key electrical concepts are voltage, current, and resistance. Voltage is the electrical potential difference between two points, measured in volts (V). Current, measured in amperes (A), is the rate of flow of electric charge in a circuit (in metal wires, this charge is carried by electrons), and resistance, measured in ohms (Ω), is the opposition to the flow of current. For an ohmic conductor under constant physical conditions, Ohm's law describes their relationship: V = I × R. Current increases with voltage and decreases with resistance.

What are the main hazards associated with electricity?

There are several main types of electrical hazards that workers may encounter in the workplace. These include:

• Electrical shock: Electrical shock occurs when electric current passes through the body, which can result in injury or death. The severity of the shock depends on the amount of current that passes through the body, the duration of the shock, and the path the current takes through the body.
• Electrical burns: Electrical burns can occur when current passes through the body's tissues, or when a person is exposed to the intense heat of an electric arc, even without direct contact with the electrical source.
• Arc flash: An arc flash is a rapid release of heat and light energy from an electric arc, which forms when current travels through the air between conductors or between a conductor and ground. The heat can cause severe burns and ignite clothing, even at a distance.
• Arc blast: An arc blast is the pressure wave that can accompany an arc flash. It can throw workers, propel molten metal and debris, and damage equipment and infrastructure, causing serious injury or death.
• Electrical fires: Electrical fires can be caused by electrical equipment or wiring that overheats or becomes damaged. These fires can spread quickly and can cause serious damage and injury.

This article provides only a brief overview of arc flash and arc blast hazards, because they are specialized hazards with their own training and protective equipment requirements. 1

What does federal law require for electrical safety?

The Canadian Electrical Code (CSA C22.1) is a national technical standard rather than a standalone federal statute 2. In workplaces governed by the Canada Occupational Health and Safety Regulations, Part VIII establishes electrical safety requirements. Under section 8.3(1), the design, construction and installation of electrical equipment must meet the standards set out in the Canadian Electrical Code, Part I, where feasible. Section 8.3(2) separately requires the operation and maintenance of electrical equipment to meet the standards set out in the Canadian Electrical Code. Part VIII does not apply to the underground workings of mines 4.

Part VIII also sets the work rules. Section 1.2 defines a qualified person through the knowledge, training and experience needed for the work. All testing or work on electrical equipment must be performed by a qualified person, or by an employee under a qualified person's direct supervision (s.8.4(1)). Section 8.5 makes isolation the starting point, subject to its specified exceptions. If isolation is not feasible and an employee must work on live equipment, the employer must instruct that employee in procedures safe for live conductors. The section also addresses equipment that could become live, guarding and approach distances 4.

Specific activities may fall under other federal instruments. The Oil and Gas Occupational Safety and Health Regulations have their own application provisions for covered oil and gas activities on Canada lands. 6 The Nuclear Safety and Control Act anchors the nuclear sector’s regulatory framework. 7

What are the main electrical safety codes and standards in Canada?

Several CSA standards also support electrical safety practices. They are not laws on their own, but governments can write specific editions of them into law: New Brunswick's occupational health and safety regulation, for example, requires CSA Z462-15, or a standard offering equivalent or better protection, to be used as a guide when selecting protective equipment 17. Because jurisdictions adopt different editions, not every edition of a standard is automatically binding everywhere. The main CSA standards for electrical safety are:

• CSA C22.1, Canadian Electrical Code, Part I: sets out the requirements for the installation of electrical systems and equipment.
• CSA Z462, Workplace Electrical Safety: sets out requirements for electrical safety in the workplace, including the elements of an arc flash safety program. 3
• CSA Z460, Control of Hazardous Energy: Lockout and Other Methods: sets out requirements for controlling hazardous energy during the maintenance and repair of equipment. 25

What do the provinces and territories require for electrical safety?

Every province and territory regulates electrical safety in two layers. There is an electrical installation code, usually the Canadian Electrical Code as adopted, in a specific edition and often with local amendments, under the jurisdiction's electrical or safety standards legislation, and there is occupational health and safety law for employers, which adds work rules, qualification requirements and training duties. The table below summarizes selected provisions across the federal jurisdiction, all ten provinces and all three territories; each instrument has its own scope and exceptions.

Electrical safety legislation across Canada

Although the regulatory framework varies by jurisdiction, several common principles apply across Canada. The Canadian Electrical Code provides a national technical framework for electrical installations, but its legal application depends on the relevant federal, provincial or territorial legislation. Jurisdictions may adopt different editions of the Code, introduce local amendments, and establish additional requirements for electrical work, qualifications and training.

The occupational health and safety layer then sets who may do electrical work (for example, federal s.8.4, BC s.19.10 and Newfoundland and Labrador s.478(2)) and what training the law requires (for example, Manitoba s.38.2, Saskatchewan s.30-16, Newfoundland and Labrador s.483 and federal s.8.5(2)). Employers must consult the legislation and code edition applicable to their specific operations. 4,8,10,11,21

What is electrical safety awareness?

Electrical safety awareness training is a program that gives workers the knowledge they need to recognize electrical hazards and work safely around electrical equipment. This includes training on hazard identification, risk assessment and the proper use of personal protective equipment. Employers are expected to provide training that matches the electrical hazards their workers face, and several jurisdictions spell out specific electrical training duties, as explained below. 4,10,11

Who is responsible for training workers on electrical hazards?

In Canada, the responsibility for electrical safety training is shared by employers and employees. Employers are responsible for ensuring that their workers are trained in the safe use and handling of electrical equipment and installations, as well as any relevant safety procedures and standards. Employees are responsible for following these procedures and using the necessary safety equipment and tools. 5,14

In federally regulated workplaces, the Canada Labour Code requires employers to provide every employee with the information, instruction, training and supervision necessary to ensure their health and safety at work (s.125(1)(q)) 5. The Canada Occupational Health and Safety Regulations add the electrical specifics. All testing or work on electrical equipment must be done by a qualified person or under a qualified person's direct supervision (s.8.4). Where isolation is not feasible and an employee must work on live equipment, that employee must be instructed in procedures safe for live conductors (s.8.5(2)) 4.

Provincial laws set out the same general duty. For example, in Ontario, OHSA s.25(2)(a) requires employers to provide information, instruction and supervision to protect workers 14.

Who must be trained on electrical hazards?

Canadian law approaches electrical safety training from two directions. Employers everywhere carry a general duty to train workers on the hazards of their work, and for electrical work specifically, several jurisdictions write the duty out explicitly. Manitoba requires employers to develop safe electrical work procedures and train workers in them, Saskatchewan requires approved high-voltage safety training with written proof, and under the federal regulation, an employer must instruct an employee in safe live-conductor procedures where isolation is not feasible and the employee must work on live equipment. Electrical safety awareness training can help workers who do not perform electrical work recognize hazards and follow appropriate precautions. This includes employees in a variety of industries, such as: 4,10,11

• Construction: Construction workers often work with electrical equipment, such as power tools and lighting systems. They may also be involved in the installation or maintenance of electrical systems in buildings.
• Manufacturing: Manufacturing workers may operate or maintain electrical equipment, such as conveyor systems, robots, and machine tools. They may also be involved in the maintenance or repair of electrical systems in manufacturing facilities.
• Utilities: Workers in the utilities industry may operate or maintain electrical systems, such as power grids, substations, and transformers. They may also be involved in the installation or repair of electrical systems in homes and businesses.
• Healthcare: Healthcare workers may work with electrical equipment, such as diagnostic imaging machines and life support systems. Installation and maintenance work in healthcare facilities must be assigned to people with the qualifications required for those tasks.
• Office and retail: Even workers in office and retail environments may encounter electrical hazards, such as faulty wiring or malfunctioning equipment. Training should address how workers identify and respond to the hazards they may encounter.
• Electrical contracting: electricians and other authorized electrical workers need the qualifications, procedures and task-specific training required for their work.

Which part of the training can be done online?

General electrical safety awareness training can be delivered online. Online courses can introduce workers to electrical hazards, basic preventive measures, and safe work practices. The eSafetyFirst course is delivered online and focuses on theoretical electrical safety awareness. It has two modules: the first covers how electricity works and the types of electrical injuries, and the second covers grounding, circuit protection, safe work practices and lockout/tagout (LOTO). It takes about 40 minutes in total, with two tests. You can start and stop anytime, on compatible devices. The course is available in English and French.

However, completing an online awareness course does not automatically satisfy all workplace-specific training, competency, supervision, or qualification requirements. Depending on the work performed and the applicable legislation, additional practical training, equipment-specific instruction, emergency-response training, and competency assessments may be necessary.

Electrical work must be performed by persons who meet the applicable legal qualification and authorization requirements. These requirements vary by jurisdiction, type of work, and regulatory framework, and may involve trade certification, licensing, demonstrated competency, or direct supervision where permitted by law. General awareness training alone does not establish these qualifications, and an electrical safety awareness certificate does not authorize a worker to perform electrical work for which specific qualifications or licences are required. 4,8,10,11

What must workers be taught about electrical hazards?

Canadian legislation establishes electrical safety training obligations that vary by jurisdiction and type of work. Under the federal regulation, where isolation is not feasible, employees who must work on live equipment must be instructed in safe procedures; Manitoba requires training in the employer's safe electrical work procedures; and Saskatchewan's high-voltage work rules demand approved training with written proof. An awareness program should cover: 4,10,11

• How electricity behaves: voltage, current, resistance, and how a person can become part of a circuit.
• The main hazards: shock, burns, arc flash and arc blast, and electrical fires.
• The rules that apply to your work: the Canadian Electrical Code's role, your jurisdiction's OHS provisions, and the qualified-person boundary.
• Safe work practices: grounding, circuit protection, approach distances, and lockout procedures for isolating hazardous energy.
• Emergency response: what to do when contact, arcing or an electrical fire happens.

Does the law set an expiry date for the training?

There is no single, nationwide statutory expiry period for general electrical safety awareness certificates. The eSafetyFirst Electrical Safety Awareness certificate carries a printed expiry of three years from completion; that is the program’s practice, separate from the legal duties to provide suitable training, use qualified workers and maintain safe procedures.

Employers must determine when refresher training is necessary based on the applicable legislation, workplace risks, changes in equipment or procedures, and their own electrical safety program. Additional training or reassessment may be required before the certificate expires.

Key takeaways

Electricity is present in almost every Canadian workplace, and the law that governs it is layered. The Canadian Electrical Code provides the technical framework, federal, provincial and territorial legislation gives it legal force (in editions and with amendments that vary by jurisdiction) and decides who may do electrical work, and several jurisdictions add explicit training duties for employers. For workers who do not perform electrical work, awareness training helps them recognize electrical hazards, follow safe work practices and respond when something goes wrong, alongside any workplace-specific training their employer provides.