Fire Prevention Measures For Oil-immersed Transformers

Oil-immersed transformers should pay special attention to their fire safety measures.
1. The fire protection distance between oil-immersed transformers with an oil volume of more than 2500kg and oil-filled electrical equipment with an oil volume of 600kg-2500kg should not be less than 5m.
2. When the fire protection distance between two adjacent oil-immersed transformers does not meet the requirements, a fire partition wall or a fire water curtain on the top of the fire partition wall should be installed. Only fire partition walls or fire water curtains can be installed between single-phase oil-immersed transformers.
3. When the distance between the outer wall of the factory building and the outer edge of the outdoor oil-immersed transformer is less than the specification table, the outer wall should use a fire wall. The distance between the wall and the outer edge of the transformer should not be less than 0.8m.
4. When the outer wall of the factory building is within 5m from the outer edge of the oil-immersed transformer, no doors, windows or holes should be opened below the horizontal line of the total thickness of the transformer plus 3m and within the range of 3m on both sides of the outer edge; the fire resistance limit of the doors and fixed windows on the fire wall outside its range should not be less than 0.9h.
5. When the oil volume of a single oil-immersed transformer and other oil-filled electrical equipment is more than 1000Kg, an oil storage pit and a public oil collection pool should be set up, and transformer pebbles should be placed for fire prevention and oil unloading.
6. Oil-immersed transformers should be equipped with fixed water spray and other fire extinguishing systems in accordance with the current relevant regulations. Oil-immersed factory transformers should be set in a separate room, and the door of the room should be a Class B fire door that opens outward and leads directly to the outside or corridor, and should not be opened to other rooms.