This standard provides a code of practice for fire safety in electrical generating and distributing stations. It establishes guidelines for hazard segregation, building construction requirements, safe handling of transformer oil, cable routing, and the provision of fire detection and extinguishing equipment.
Fire Safety of Industrial Buildings: Electrical Generating and Distributing Stations - Code of Practice
Quick Reference Values
Fire resistance rating of fire barrier walls for indoor transformers2 hours (minimum)
Oil soak pit capacity without drain to remote sump100% of oil capacity
Oil soak pit capacity with drain to remote sumpMinimum 30% of oil capacity
Fire rating of doors in segregation walls2 hours
Practical Notes
Pay special attention to fire-stops in cable galleries and trenches, as unsealed cable penetrations are a common cause of rapid fire spread between compartments.
Ensure soak pits under oil-filled transformers are properly sized and filled with coarse stones to effectively quench burning oil.
Coordinate structural fire walls with the electrical layout early in the design phase to maintain statutory clearances around high voltage equipment.