1, more than 2500kg of fuel in oil-immersed transformers and oil between the 600kg-2500kg of oil-filled electrical equipment, the fire spacing should be less than 5m. 2, when the spacing between adjacent fire between the two oil-immersed transformer does not meet the requirements should be set at the top of the fire wall or fire wall add fire water curtain. You can only set fire wall or fire water curtain between the single phase pole mounted transformer . 3, when the plant from the outside facades with oil-immersed transformer is smaller than the outer edge of the provisions of the specification table, the exterior wall firewall should be used. Distance from the outer edge of the wall and transformer of not less than 0.8m. 4, oil-immersed transformer factory facades from the outer edge of less than 5m, the total thickness of the transformer plus 3m 3m below the horizon and within range of each outer edge plus side, should open doors and windows and holes; it outside its scope Doors and fixed windows firewall, its fire resistance of not less than 0.9h. 5, oil-immersed transformers and other oil-filled electrical equipment during a single fuel than 1000Kg, set oil storage pits and a common set sump. 6, oil immersed power transformer shall be related to the current specification, provided a fixed water spraying fire extinguishing system. Oil-immersed transformer plant should be set up in a separate room, the door of the room should be B fire doors open outwards, and direct access to the outdoors or corridors, not open to other rooms.
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