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908 Offshore Oil and Gas Safety I
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Fire Watch

Most hot work should require at least one fire watch. When this is the case:

Post a fire watch when welding.
  • A fire watch should be assigned when any welding, cutting, or other hot work operations are being conducted.
  • The fire watch should not use facility-assigned fire extinguishers. The fire watch should use only fire extinguishers specifically assigned for the purpose of a fire watch.
  • If hot work is performed over areas where the possibility of fire exists, a second fire watch is assigned in that area during the full fire watch period.

Fire watchers should:

  • Monitor the atmosphere with a gas detector. If a flammable or combustible gas exceeds 10 percent of the lower explosive level (LEL), the work must be stopped.
  • Have fire-extinguishing equipment readily available and be trained in its use.
  • Be familiar with facilities for sounding an alarm in the event of a fire.
  • Watch for fires in all exposed areas, try to extinguish them only when obviously within the capacity of the equipment available, or otherwise sound the alarm.
  • Maintain the fire watch at least a half hour after completion of welding or cutting operations to detect and extinguish possible smoldering fires.

Knowledge Check Choose the best answer for the question.

6-9. When is a second fire watch required in the welding area?