Arc Flash Lawsuits: Companies Held Accountable in the U.S. & Canada

Arc flash incidents are serious events that can injure and even kill workers. They can also result in legal and financial consequences for companies and their management. 

Safety is not just a moral decision; it's a legal one. Here are real court cases demonstrating the price of negligence in electrical safety.

Case 1: Eversource Energy Service Co. - Fatal Beacon Hill Arc Flash

OSHA

A clear example of a utility company being cited and fined following a fatal arc flash incident.

• The Incident: In July 2022, an Eversource employee was doing maintenance work on electrical equipment inside an underground vault in Boston. As the worker set the equipment back into place, an arc flash and blast occurred, causing severe burns that led to the worker's death.
• The Findings: The Department of Labor's Occupational Safety and Health Administration (OSHA) investigated and cited Eversource Energy Service Co. for five violations (two willful & three serious) of workplace safety standards.
• The Consequences:
  • OSHA proposed $333,560 in penalties against the company.
  • Violation Summary: The violations stemmed from failures to:
    • Fully de-energize the electrical equipment. 
    • Make a reasonable estimate of the heat energy (arc flash boundary/PPE requirements) to which employees would be exposed.
    • Adequately train employees on electrical equipment hazards.
    • This case directly confirms that failure to follow basic steps required by standards like—specifically, de-energization and hazard assessment—results in major financial liability and criminal penalties.

 

Case 2: ThyssenKrupp Industrial Services Canada Inc., carrying on business as ThyssenKrupp Hearn Division (TK) - Supervisor Charged

Article — Province of Ontario

Both corporations and individuals (like supervisors) who fail to ensure worker safety can be held responsible for worker’s safety. 

• The Incident: In Ontario in 2009, an electrical worker was seriously burned after a bare conductor touched the side of an electrical panel, causing an arc flash. The worker was performing electrical upgrades at a warehouse.
• The Findings: An investigation by the Ministry of Labour found that the electrical panel was not disconnected from the power source, locked out, or tagged before the work began.
• The Consequences:
  • TK was found guilty of failing to ensure the panel was de-energized and was fined $160,000.
  • Individual Fine: A company supervisor was found guilty of the same violation and was fined an additional $11,000.
  • Supervisors and management can be held personally liable for safety failures 

These cases clearly show that when an arc flash incident occurs, the blame—and the financial and legal penalties—can fall on the company and the management team that failed to enforce safe work practices.

Regulatory bodies often referencing electrical standards, use their authority to impose fines and even criminal charges against companies for:

• Failing to perform a Hazard Risk Assessment (like an Arc Flash Study).
• Failing to implement and enforce proper Lockout/Tagout procedures.
• Failing to provide and ensure the use of appropriate Personal Protective Equipment (PPE).
• Failing to provide adequate training to employees on electrical hazards.

 

The cost of compliance—training, arc flash studies, and proper PPE—is minor compared to the monumental costs of a single arc flash lawsuit, fine, and the devastating loss of life and reputation.

No penalty compares to the human cost of negligence. The most important return on investment is your workers going home safely every day.