Shanghai Richeng Electronics Co. Ltd - ISO9001/IATF16949/ISO/TS22163
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Safety hazards and solutions for electric vehicle charging piles

The electric pile functions like a gas station at a gas station and plays an important role in the use of electric vehicles. In order to shorten the charging time of the user, the charging pile generally adopts a high voltage and a large current working mode, which imposes extremely high requirements on safety. Through testing, the industry personnel used 14 charging piles to configure electrical protection equipment such as leakage protection, overcurrent protection and lightning protection, and the charging piles were equipped with anti-theft locks to provide users with basic security. However, some security risks still need to be eliminated.

During the use, the charging pile will inevitably have an unexpected situation, and it is necessary to start the emergency stop switch. Whether a series of safety requirements for charging piles is up to standard is critical.

电动汽车充电桩安全隐患与解决办法

According to the output requirements of the charging pile AC 220V32A, the main circuit wire of the charging pile should be a copper core wire with a section of 6 mm2. In the case of high current output, there are special requirements for the use level of the cable, such as a silicone rubber tube resistant to high temperature and heat conduction, which requires higher technical requirements.

Secondly, the national standard has clear requirements for the waterproof performance of the charging pile, and it should reach the IP54 protection level in the outdoor. Waterproof and moisture proof is a must for outdoor use of charging piles. Some technically unqualified charging piles are prone to obvious water stains inside the charging pile, large water droplets on the inner wall of the fuselage, moisture entering the information display, and inability to clearly observe relevant information, affecting the operation and use, causing leakage safety risks. . Therefore, it is very necessary to use a waterproof and moisture-proof charging pile sealant seal.

In addition, the street guardrail is occasionally hit by the vehicle. What happens to the charging pile if there is an abnormal event? In the production, it is necessary to use the shock-proof and impact-resistant charging pile potting glue to fill the internal space, which not only has the performance of flame retardant and heat conduction, but also plays the role of shockproof and impact resistance. Therefore, on the basis of using the charging pile potting glue, it is necessary to study the charging pile with the function of dumping shutdown power failure to avoid the accidental collision accident causing secondary electric shock damage to the personnel.

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