Onlookers are strictly prohibited near the oil truck to prevent gasoline from dripping onto other items.

Gasoline is a flammable substance. When plastic barrels are used to transport gasoline, the plastic barrel becomes charged due to constant friction between the gasoline and the barrel wall during transportation. And because plastic is an insulating material, the plastic barrel Electric charge is not easy to transfer and transfer, so the charge on the barrel accumulates more and more. When the charge on the barrel accumulates to a certain extent, discharge will occur, and the sparks generated by the discharge will ignite the gasoline, causing fire or burn accidents. Therefore, It is strictly forbidden to use plastic barrels to hold gasoline.

First of all, the vehicles that drag chains behind the vehicles are generally vehicles containing flammable and explosive items (such as oil tankers).

If the vehicle A certain amount of charge accumulates on the chain due to friction and other reasons, and discharge occurs, which can cause fire or explosion accidents.

If you drag an iron chain, the excess charge will be transferred to the earth (the charge of the earth Maintain a dynamic balance, that is, not charged), preventing the occurrence of discharge.