At present, China has built the world's largest network of charging and exchanging services. The construction and operation of charging and exchanging facilities has taken the lead in the world. In 2014, significant progress was made in the development of new energy vehicles in China. The production and sales volume of new energy vehicles increased significantly. The annual sales amounted to 74,800 units, which was 3.2 times more than the previous year. The number of ordinary consumers who purchased new energy vehicles accounted for more than 60%. With the increase of new energy vehicles, lightning protection for the exchange of electricity service facilities is essential.
According to statistics, billions of lightning strikes occur each year worldwide. This will pose a great threat to the long-term outdoor charging piles. Once the protection is not in place, it will cause damage to the charging pile, and even result in major accidents and personal injury. If lightning occurs, electric vehicles are being charged, and electric vehicles are easily damaged by the high voltage generated by lightning. The interior of the car charging pile adopts an integrated intelligent system with an internal microprocessor and high-precision integrated circuit electronic system. For example, monitoring systems, controllers, instruments, communication systems, and satellite systems that connect charging posts are all subject to lightning strikes. Therefore, all-round system protection should be used for charging piles.
First, classification protection of the power system (1) According to the requirements of the “Lightning Protection Design Code for Buildings†GB50057-2010, Surge Protectors of Grade I test shall be installed at the main distribution box introduced by the power supply, aiming at the charging station. Power system total power distribution room equipment T1 surge protector. First level lightning protection.
(2) According to the principle of lightning protection, once the lightning energy is released once, there is still a high residual voltage on the power line. It should be coordinated with the lightning protection device at the rear stage of the lightning protection system so that the lightning energy can be released step by step. Therefore, a secondary surge protector with a maximum discharge current of 40 kA should be installed at the distribution box of the charging station.
(3) As the last stage lightning protection module, it is responsible for the last task of voltage protection. When affected by a strong lightning strike, through the front two levels of lightning protection, there will still be some remaining residual voltage will impact the power equipment, so you need a three-stage surge protector or DC surge protector to reduce the residual voltage to 1.5 KV guarantees the safety of the equipment.
Second, the network data system lightning protection network data system charging pile data collection, collected by the monitoring room network switch, need to install multiple network signal surge protection device in front of the computer room network switch protection. Similarly, a single network signal surge protector should be installed at the network data output interface of the charging pile, and full protection against lightning strikes.
Third, the control system monitoring room lightning control system monitoring There are three kinds of power supply, network, and control systems in the computer room. Data signal surge protectors should be installed before the control line ports. For the cameras distributed in the car charging station, which are vulnerable to lightning damage, resulting in the loss of important data, the network should be equipped with a lightning protection device in front of the bolt. The ball machine should be equipped with a network because there is one more control line. One lightning arrester.
In general, only through all-round and systematic lightning protection measures can the charging station be completely protected from lightning strikes. Only by doing a good job of system protection can the safe and stable operation of charging piles be guaranteed.
According to statistics, billions of lightning strikes occur each year worldwide. This will pose a great threat to the long-term outdoor charging piles. Once the protection is not in place, it will cause damage to the charging pile, and even result in major accidents and personal injury. If lightning occurs, electric vehicles are being charged, and electric vehicles are easily damaged by the high voltage generated by lightning. The interior of the car charging pile adopts an integrated intelligent system with an internal microprocessor and high-precision integrated circuit electronic system. For example, monitoring systems, controllers, instruments, communication systems, and satellite systems that connect charging posts are all subject to lightning strikes. Therefore, all-round system protection should be used for charging piles.
First, classification protection of the power system (1) According to the requirements of the “Lightning Protection Design Code for Buildings†GB50057-2010, Surge Protectors of Grade I test shall be installed at the main distribution box introduced by the power supply, aiming at the charging station. Power system total power distribution room equipment T1 surge protector. First level lightning protection.
(2) According to the principle of lightning protection, once the lightning energy is released once, there is still a high residual voltage on the power line. It should be coordinated with the lightning protection device at the rear stage of the lightning protection system so that the lightning energy can be released step by step. Therefore, a secondary surge protector with a maximum discharge current of 40 kA should be installed at the distribution box of the charging station.
(3) As the last stage lightning protection module, it is responsible for the last task of voltage protection. When affected by a strong lightning strike, through the front two levels of lightning protection, there will still be some remaining residual voltage will impact the power equipment, so you need a three-stage surge protector or DC surge protector to reduce the residual voltage to 1.5 KV guarantees the safety of the equipment.
Second, the network data system lightning protection network data system charging pile data collection, collected by the monitoring room network switch, need to install multiple network signal surge protection device in front of the computer room network switch protection. Similarly, a single network signal surge protector should be installed at the network data output interface of the charging pile, and full protection against lightning strikes.
Third, the control system monitoring room lightning control system monitoring There are three kinds of power supply, network, and control systems in the computer room. Data signal surge protectors should be installed before the control line ports. For the cameras distributed in the car charging station, which are vulnerable to lightning damage, resulting in the loss of important data, the network should be equipped with a lightning protection device in front of the bolt. The ball machine should be equipped with a network because there is one more control line. One lightning arrester.
In general, only through all-round and systematic lightning protection measures can the charging station be completely protected from lightning strikes. Only by doing a good job of system protection can the safe and stable operation of charging piles be guaranteed.
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