Oil-immersed transformers is different from other products, because it is equipped with transformer oil, it will occur spontaneous combustion and fire after reaching the ignition point, causing accidental injury accidents, we need to pay attention to fire protection on oil-immersed transformers.
1.the plant wall from the outer edge of the oil-immersed transformer within 5m, the total thickness of the transformer 3m below the horizontal line and both sides, should not open doors and windows and holes; In its scope outside the firewall on the doors and fixed windows, the fire resistance should not be less than 0.9h.
2.oil in more than 2500kg oil-immersed transformers and oil in the 600kg-2500kg oil-filled electrical equipment, their fire spacing should not be less than 5m.
3.when the adjacent oil-immersed transformers can not meet the specified fire spacing, should be set fireproof wall or fire wall at the top plus fire water curtain. Single-phase oil-immersed transformers can only be set the fire wall or fire water curtain.
