The Electricity Design of Automobile Fuelling Station

There are some problems found in the built automobile fuelling stations, such as unidentities between the design and standard, low safety or excessive safety.Refering to the National Standards of China, the description has been made for the problems exsited in the electric distribution, earth and lightning-proof system of automobile fuelling stations.For automobile fuelling stations, power incoming can seldom be laid down in sand-filled trench, and distribution feeder must not be laid down with product pipeline in one trench; the cable which is made of copper core should be used, and cross section of the core is no less than 2.5 mm2.The cross section of core can not be selected according to the load (generally 0.8 kW)of fuelling machine.The lighting fixture should properly select the protection type lighting fixture instead of explosion-proof type lighting fixture.The special ground line should be used for fuelling machine, the earth resistance of electric e-quipment is no more than 10 Ω.Antistatic earthing device should be installed during tanker unloading, the earth resistance of the device is no more than 100 Ω.The lightning arresting design for the fuelling station includes the two points, lightning arresting of steel tanks and direct-lightning arresting of fuelling room.It is pointed out that the design of lightning arresting for steel tanks is necessary and it is unnecessary to intall lightning arrestors.