There are so many pebbles under the transformer resolved

Prevent oil spills, but also fire riot. Seepage of oil can go on, as if the provisions of the ministerial standards, a large oil-immersed transformers shall be provided with the lower oil reservoir, an area  Voltage stabilizer  than the plane occupied by the transformer, the depth of about 1M, laying 10CM diameter around the cobbled  power transformers  is to absorb the transformer oil. But let not the oil can absorb the oil leak continues, the transformer is a slope below the lowest point has a grille, through tubing connected to the incident under the tank. Let go of the oil flow to the accident on the tank!