Definition Work involving sources of ignition or temperatures sufficiently high to cause the ignition of a flammable gas mixture is termed as Hot Work. This includes any work requiring the use of welding, burning or soldering equipment, blow torches, some power-driven tools, portable electrical equipment which is not intrinsically safe or contained within an approved explosion-proof housing, and internal combustion engines. Hot Work Permit A document issued by a Responsible Person permitting specific Hot Work to be done during a particular time interval in a defined area. The SMS should … [Read more...]