Coal Mining Occupational Health and Safety Regulations (SOR/90-97)

149 (1) A water supply system for fire protection shall be installed along the side of every conveyor that is in service at a coal mine.

(2) The flow pressure of the water in the system referred to in subsection (1) at any hydrant on the circuit shall be

• (a) not less than 340 kPa when two of the hydrants on that circuit are discharging water at a rate of 200 L/min; and

• (b) measured at a nozzle of 16 mm diameter that is attached to the hydrant.