1.Lightning protection of buildings:The buildings of a gas station include a gas shed, a station building and other ancillary buildings. The gas shelter belongs to the second class of lightning protection buildings, and the station building and other ancillary buildings belong to the third class of lightning protection buildings.
2.Lightning protection of oil tanks:The metal oil tank shall be annularly grounded, and its grounding points shall not be less than two, the grounding body should not be less than 3m away from the tank wall. The thickness of the roof of the oil tank is <4mm, should be installed anti-direct lightning facilities, when the thickness of the roof >4m, can not be installed direct lightning facilities. However, in mine-heavy areas (the average number of thunderstorm days per year is more than 40 days), direct lightning protection facilities can also be installed. The horizontal distance between the independent lightning rod and the protected oil tank should not be <3m, and the protection range should be more than 2m higher than the breathing valve.
3.Lightning protection of power cords and ** wires:Most of the lightning accidents in gas stations occur when lightning waves are conducted through power lines and lines. Doing a good job in power cord and line protection is an important part of lightning protection in gas stations.
4.Lightning protection and anti-static grounding:Working grounding, safety protection grounding, lightning protection and anti-static grounding, information system grounding, and lightning protection grounding of buildings should share a group of grounding devicesThe ground resistance is not greater than 4
5.Flash:According to the comprehensive analysis of the meteorology, terrain, landform, surrounding environment and other factors where the automobile refueling and gas station is located, when the refueling and refueling station may suffer direct lightning strikes, lightning belts (nets) should be installed on its roof for flashing.
6.Equalization:After the refueling station building is used as a ring grounding device, all metal pipes, cable metal sheaths, wire protection pipes, etc. entering and exiting the ring grounding device should be connected at the intersection with the ring grounding device, and the adjacent metal conductors and equipment should be connected with the conductor.
7.Equipotential bonding:All metal objects entering and exiting the building must be equipotential connected with the lightning protection system of the building, and the equipotential connection belt is connected with the ring grounding deviceThe application cross-sectional area is not less than 100mof the connecting wires.
8.Maintain a safe distance:Flammable and explosive oil tanks should be buried and kept from surrounding buildingsNot less than 25mdistance;The distance between the tanks should not be less than the sum of the diameters of the two tanks.
9.The oil storage tank should be equipped with facilities and measures to prevent static electricity. For example, the oil tank is provided with two oil discharge ports, and the electrostatic grounding instrument is set respectivelyWhen unloading, connect the electrostatic grounding instrument in series to the unloader;The oil measuring port of the oil tank is equipped with a copper wire mesh to eliminate static electricity. Lightning protection