Workers have died or sustained serious injuries after their work vehicles exploded. These explosions occurred when gas from leaking portable gas cylinders ignited inside the vehicles. In many cases, the ignition source was the vehicle’s electrical system.
Flammable gas cylinders include those containing oxygen, acetylene, liquefied petroleum gas, and propane or butane throwaway-style cylinders.
These incidents could have also killed or seriously injured members of the public.
Gas cylinders should be stored and transported in vehicles with cargo areas open to the air, and not stored inside closed-type vehicles. When storing or transporting fuel gas cylinders, ensure:
- main cylinder valves are tightly closed
- there is no leakage from the main valve area (eg using a gas detector or soapy water test)
- cylinders are secured in an upright position to prevent them from tipping or falling over
- cylinders cannot be struck by other objects (eg loose tools and materials)
- cylinders are always removed from the vehicle before the gas is used
- at least one 10B dry-powder fire extinguisher is fitted in the driver’s cabin.