OHS Code

Published Date: July 01, 2009
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Part 10 Fire and Explosion Hazards

Section 166 Internal combustion engines

(1) An employer must ensure that an internal combustion engine in a hazardous location has a combustion air intake and exhaust discharge that are

(a) equipped with a flame arresting device, or

(b) located outside the hazardous location.

(2) An employer must ensure that all the surfaces of an internal combustion engine that are exposed to the atmosphere in a hazardous location are

(a) at a temperature lower than the temperature that would ignite a flammable substance present in the hazardous location, or

(b) shielded or blanketed in such a way as to prevent a flammable substance present in the hazardous location from contacting the surface.

(2.1) If it is not reasonably practicable to comply with subsection (2), an employer must ensure that another effective safeguard is established.

(3) Subsections (1) and (2) do not apply to a vehicle that is powered by an internal combustion engine.

(4) An employer must ensure that a vehicle powered by an internal combustion engine is not located or operated in a hazardous location except in accordance with section 169.

(5) An employer must ensure that an internal combustion engine is not located in a Zone 0 hazardous location as defined in the Canadian Electrical Code or in a part of a Division 1 hazardous location as defined in the Canadian Electrical Code that meets the description of a Zone 0 location.

(6) An employer must ensure that an internal combustion engine is not located in a Zone 1 or Division 1 hazardous location as defined in the Canadian Electrical Code unless it is equipped with combustible gas monitoring equipment in accordance with section 18 of the Canadian Electrical Code.

(7) An employer must ensure that an internal combustion engine is not located in a Class II, Division 1 or a Class III, Division 1 hazardous location as defined in the Canadian Electrical Code.