Ventilation control device | | Design criteria |
Ventilation ducting | | Anti-static and fire-resistant |
Brattice line or temporary stopping | | Anti-static and fire-resistant |
Separation stopping for a primary escapeway | | Anti-static, fire-resistant, and of substantial construction that will ensure minimal leakage |
Stoppings, doors, overcast, or regulator installed as part of the main ventilation system | | Capable of withstanding an overpressure of 35 kPa |
Stoppings, doors, overcast, or regulator installed as part of the ventilation system for a panel | | Capable of withstanding an overpressure of 14 kPa |
Mine entry airlock | | Capable of withstanding an overpressure of 70 kPa while it is open |
Type B seal | | Capable of withstanding an overpressure of 35 kPa |
Type C seal | | Capable of withstanding an overpressure of 140 kPa |
Type D seal | | Capable of withstanding an overpressure of 345 kPa |
Type E seal | | Capable of withstanding an overpressure of 70 kPa |