3. Boiler rooms, transformer rooms and other places should be separated by non-combustible partition walls with a fire resistance rating of not less than 2.00h and floors with a fire resistance rating of 1.50h. There should be no openings in partition walls and floors. When doors and windows must be opened on the partition wall, fire doors and windows with a fire resistance rating of not less than 1.20h shall be used.
4. When an oil storage room is set up in the boiler room, its total storage volume should not exceed 1.00m3, and a firewall should be used to separate the oil storage room from the boiler. When a door needs to be opened on the firewall, a Class A fire door shall be used.
5. Between transformer rooms and between transformer rooms and power distribution rooms, non-combustible walls with a fire resistance rating of not less than 2.00h should be used to separate them.
6. Oil-immersed power transformers, oil-rich switch rooms, and high-voltage capacitor rooms should adopt equipment to prevent oil diffusion. Under the oil-immersed power transformer, emergency oil storage equipment that stores all the oil in the transformer should be used.
7. The boiler capacity should comply with the relevant provisions of the current technical standard "Code for Design of Boiler Houses" GB50041. The total capacity of oil-immersed power transformers should not be greater than 1260KVA, and the capacity of a single transformer should not be greater than 630KVA.
8. Fire alarm devices and automatic fire extinguishing systems other than halon should be used.
9. Gas and oil-fired boiler rooms should adopt explosion-proof pressure relief facilities and independent ventilation systems. When gas is used as fuel, the ventilation volume should not be less than 6 times/h, and the emergency exhaust frequency should not be less than 12 times/h. When fuel oil is used as fuel, the ventilation volume should not be less than 3 times/h, and the ventilation volume with problems should not be less than 6 times/h.
