PART XX FIRE PREVENTION AND CONTROL — Combustible substances
446
(1) Where a work process releases finely-divided combustible dust within an enclosed area where workers are employed, effective dust control equipment shall be used.
446(2)
A collector of combustible dusts, other than that of the liquid spray type, shall be
446(a)
located outside or in isolated enclosures removed from or protected against sources of ignition; and
446(b)
provided with explosion relief vents.
446(3)
Electrical wiring and equipment in a combustible dust collector and associated rooms or enclosures shall be of the explosion-proof type.
446(4)
Where combustible dust collects in a building, structure, machinery or equipment, it shall be removed before the accumulation of the dust creates a fire or explosion hazard.
Not legal advice. Verify the cited article against the signed agreement.