Hazardous Area Classifications (HAC)

A Hazardous Area Classification (HAC) is intended to identify hazards areas as defined under the electrical code.

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What are Hazardous Locations?

Hazardous locations are areas where flammable liquids, gases, vapours, or combustible dusts are present in quantities that could cause fire or explosion. These areas require specially designed equipment and installation methods to reduce risk.

The Canadian Electrical Code defines hazardous areas as those where fire or explosion hazards may exist under normal or abnormal conditions due to flammable substances. Electrical equipment in such areas must account for potential ignition risks.

Conditions for Explosions to Occur

In order for an explosion to occur, all three conditions must be present, an ignition source, oxygen and fuel.

Static electricity, making and breaking on electrical switches producing sparks, and other heat sources serve as an ignition source.

What our team delivers.

  • Our team provides a Hazardous Area Classification Report in accordance with CSA C22.1 and NFPA standards, which serves as the foundation for hazardous zone classification diagrams.
  • We develop detailed hazardous area classification diagrams that define hazardous zone classifications around specific equipment, an essential requirement for Electrical Inspector approvals in hazardous location classifications.

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