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As an automotive interior device to operate effectively, automotive high-voltage cables play an important role in it. Cables connect various parts of the car, such as batteries, motors and other important components to run. Power cables of meters or less in length are measured with a megohmmeter. When the cable temperature is +20°C, the insulation resistance value should not be lower than Ω. The value of cable insulation resistance varies with the temperature and length of the cable. For the convenience of comparison, it should be converted to the resistance value per unit length at 20°C. Generally expressed in resistance value per kilometer, namely: =Rt×Kt×L where - at 20°C, the insulation resistance of the cable per kilometer MΩ/KM; Rt - the insulation resistance of the cable with length L at t°C , MΩ; L-cable length, Km; Kt-temperature coefficient, the coefficient is 1.0 at 20℃. The insulation resistance of a good (qualified) power cable is usually very high, and its minimum value can be specified by the manufacturer: for a new cable, the insulation resistance of each cable core to the outer skin has a certain standard, and the rated voltage of 6KV and above should not be less than Ω, When the rated voltage is 1~3KV, it should not be less than Ω. In addition,UHV cable 1.8kV and below are low-voltage cables; 3.6KV~ are medium-voltage cables; ~ are high-voltage cables; ~ are extra-high-voltage cables; UHV cable is a kind of power cable that appears with the continuous development of cable technology. UHV cable is generally used as a middle hub in large-scale power transmission system. It belongs to a kind of high-voltage cable with high technical content. transmission. Among them, automobiles use the high-voltage cable standard. As a car, the battery provides stored power for electronic parts and components, and wires and cables with high performance requirements for power transmission are required. The voltage of the power battery is generally a high voltage of 100-400V, and its output current can reach 300A. The capacity of the power battery directly affects the cruising range of the vehicle, as well as the charging time and charging efficiency. At present, lithium-ion power batteries are the mainstream. Under the influence of current technology, most of the current cars use lithium-ion power batteries. Due to the electromagnetic field interference caused by the high voltage and large AC of the new energy vehicle, as well as the electromagnetic interference caused by the rapid switching of electrical components, the entire high-voltage system is completely covered by the shielding layer considering the factors of electromagnetic interference. The ultra-high current and voltage of electric vehicles will produce a large electromagnetic induction phenomenon during operation. If the electromagnetic shielding problem is not well solved, it will inevitably affect the performance of automotive electronic equipment. Choose one. For more EV high-voltage cable, Please visit or search: https://www.omgevcable.com |
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OMG cable manufacturer is a high-tech enterprise integrating R & D, production, sales and service. OMG is committed to becoming a world-class cable solution provider for new energy vehicles. In 2017, OMG was rated as one of the top 100 enterprises of electric vehicle core parts. Based on the enterprise mission of "green innovation, benefit mankind", a new form of new energy electric vehicle charging field has been formed. OMG automotive cable series provides support for the growing electric vehicle (EV) market in the automotive industry and continues to provide high performance for the EV industry. Now, like most automotive industries, OMG automotive cable series mainly focuses on the requirements of electric vehicle (EV) cables. It includes automobile cables used for the vehicle itself, whether it is electric power or traditional gasoline and diesel, such as cables used for starting, charging and other functions, such as cables specific to ITT, BMW and other major manufacturers' standards. OMG also has American standard automobile wire UL and European standard automobile cable en. The rapidly growing electric vehicle market relies on a cable network that supports charging. Support the cable required for electric vehicle charging and the rapidly expanding electric vehicle charging station installation business. Residences and businesses will use EV charge connect and h05bz5-f and h07bz5-f cables for vehicle connection for mode 1, 2 and 3 charging and mode 4 DC charging cables for industrial installation, as well as cables for wider grid power connection. To learn more EV charging cable and EV HV cable, Please visit or search: https://www.omgevcable.com |
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For new energy electric vehicles, for low-power charging piles, a minimum of 2.5 square wires can be selected, but BV wires are required. However, for the sake of insurance, 4 square meters or 6 square meters are basically used, and the carrying capacity is stable enough to charge electric vehicles. If the traces are too long, you need 10 square or even higher wires, etc. Ordinary sockets are generally air conditioner sockets or specifications sockets for portable chargers. The charging power of electric vehicles is large, which may burn out the socket and cause fire and other dangers. You should use the correct charging method under professional guidance. Electric Vehicle Charging Considerations Electric vehicle users should master the correct charging time. It takes a longer time for pure electric vehicles to replenish energy. If you choose a home charging pile to charge, it will take nearly 8 hours to fully charge the battery. If you choose a fast charging pile, it will take 40 minutes to be fully charged to 80%. Get into the habit of charging frequently, and don't wait until the power is too low to recharge. The battery should not be over-discharged. Excessive discharge of the battery will reduce its service life. Although the battery pack is designed with a protection system, if you often drive the car to the "red light" situation, it will definitely affect the life of the battery pack. So, what about long wires for electric vehicle charging cables? An electric vehicle charging line of 1.5 square meters is sufficient. The longer the line, the thicker it needs to be. However, many are charging from upstairs to downstairs, requiring a long line. If it is to extend the output line, 20 meters, plus and minus back and forth is 40 meters, it may use a line of more than 2.5 square meters. It is better to increase the thickness appropriately when conditions permit. The diameter of the wire is thicker, and after adding the insulating skin, the whole is thicker, so that the tension is sufficient after extension, which is safer. Of course, it is more convenient to consult professional technical cable manufacturers for details. To learn more EV charging cable and Charging cables, Please visit or search: https://www.omgevcable.com |
