QEHSOperations
Hot Work Permit
A permit authorising activities that produce sparks, flame, or heat near flammable materials.
Hot work includes welding, cutting, grinding, brazing, and soldering. Before a hot work permit is issued, the area is tested for flammable atmosphere (LEL), combustibles are removed or shielded, fire watch is assigned, and extinguishers are staged. The permit specifies location, duration, and required precautions. Post-work fire watch continues for a defined period (commonly 30–60 min).