Then the following seven factors should be considered when placing pebbles under an oil-immersed transformer:
1. After the transformer is used for a long time, the parts may have problems such as aging and leakage. Placing a large number of pebbles can absorb the transformer oil leakage, so that the transformer oil can flow back to the accident oil pool smoothly and reduce accidents.
2. In the event of an accident, pebbles can prevent oil splashing in the transformer and avoid explosion.
3. When an explosion catches fire, the pebbles can play a role in isolation, prevent the fire from spreading to the ground, and help extinguish the fire.
4. Slight cooling effect. When the transformer temperature is too high, it can be cooled with pebbles.
5. Pebble insulation is convenient for operators to maintain and inspect.
6. The pebbles have shock absorption function. The function is the same as the stone on the railway, which can add a layer of buffer.
7. Prevent the growth of weeds.