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Cold work includes but not limited to: Opening vessels, pipes or enclosed spaces. Where equipment requires decontamination. Mechanical maintenance work. Civil maintenance work. removal of scaffolding. Insulation and painting. Blanking/de-blanking. Disconnecting and connecting pipelines.

Cold Work Permit Cold work permits are used in hazardous maintenance work that does not involve “hot work”. Cold work permits are issued when there is no reasonable source of ignition, and when all contact with harmful substances has been eliminated or appropriate precautions taken.

The American Petroleum Institute defines hot work as any work that involves welding, burning, or hot tapping or the use of equipment near an open flame or equipment capable of generating a spark. Cold work describes a situation where the task being performed does not generate any sources of ignition.

This includes work other than hot work such as Blanking or Deblanking, Connecting and Disconnecting pipe work, Removing and fitting of valves, blanks or blinds, work on pumps, cleaning or mucking out oils and Semi Solid/Solid oily Residues. Cold work permit must be obtained/issued before any such work.

Prolonged exposure to extremely cold temperatures can often result in cold stress which includes fatigue and mild to serious health issues such as increased risk of incident/injury, hypothermia frostbite/trench foot and other long-term health effects.