EVCOME EV charging stations for better life---Top EV charging stations manufacturers & suppliers in China.
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EVCOME EV charging stations for better life---Top EV charging stations manufacturers & suppliers in China.
The technical level and characteristics of the new energy special cable industry. (1) The technical level of the new energy special cable industry. Cables are mainly used for power transmission, distribution and signal transmission. Its function is mainly realized by physical properties and electrical properties. The use environment and technical requirements of different fields have different requirements on the performance of the matching cables. Photovoltaic cables are exposed to the external natural environment for a long time, exposed to strong ultraviolet rays, and are also used in heat, cold, rain, snow, frost, humidity and pollution (such as dust. Salt spray in coastal areas. Chemical pollution in industrial areas) and other environments , and need to withstand various mechanical external forces (such as gravity, traction, impact, wind vibration, etc.), so there are strict evaluation standards for the performance of the cable. In addition, since the required service life of photovoltaic modules is 25 years, the service life requirements of supporting photovoltaic cables are higher than that of ordinary cables. In addition to the characteristics of softness, abrasion resistance, and corrosion resistance, high-voltage cables in new energy vehicles also need the following main characteristics: 1) High voltage resistance. The high-voltage cables in new energy vehicles are mainly used for energy transmission of the three-electric system of new energy vehicles. It is the carrier of the car's circuits and needs to transmit the energy of the battery to the various subsystems. Therefore, high-voltage cables in new energy vehicles must meet high-voltage and high-current transmission; 2) heat aging resistance. Since the high-voltage cables in new energy vehicles pass through large currents for a long time, the power is high, and large heat is generated, the high-voltage cables in new energy vehicles need to have strong heat resistance and resistance to heat aging and cracking; 3) Electromagnetic compatibility. In order to avoid electromagnetic interference and external interference of electromagnetic radiation on surrounding equipment, the high-voltage cables in new energy vehicles need to design anti-electromagnetic interference shielding structures to ensure the safe and normal operation of new energy vehicles; 4) Flame retardant. When a new energy vehicle cable catches fire, it needs to spread the flame to a limited range, and the residual flame or combustion will extinguish itself within a limited time. Therefore, the high voltage cable in the new energy vehicle also needs to have good low-smoke flame retardancy. New energy vehicle charging cables are mainly used to connect new energy vehicles and charging piles. In the state of long-term exposure, it needs to be moisture-proof, low-temperature resistant, and weather-resistant; and it must be bent, dragged, and moved frequently during use, which is easy to cause damage such as wear, scratches, and rolling. Therefore, the charging cable needs good physical and mechanical properties, and has higher requirements for the weight, flexibility, flexibility, mechanical properties and corrosion resistance of the cable. In addition, with the development of new energy vehicles, the charging cable not only has the main function of transmitting electric energy itself, but also has the function of transmitting the corresponding battery power of the charging vehicle. From the overall information status to the charging pile. Since the charging cable is in direct contact with the human body, the charging cable needs to detect various state parameters in real time during the charging process, and monitor the entire charging process in real time to ensure the safety of the user. (2) Technical characteristics of new energy special cable industry. The technical core of new energy special cable production includes materials, structural design and preparation process. Materials directly affect product quality and output. Product structure design affects product safety, reliability, wear resistance, tensile strength and other comprehensive properties and material consumption. The preparation process is the technical guarantee to realize the product structure design. Different preparation processes not only affect the quality and performance of the product, but also affect the production efficiency of the product. Due to the particularity of the use environment, photovoltaic and new energy automotive cables put forward higher requirements on the performance and preparation process of cable materials. In addition, since photovoltaic and new energy vehicle cables are important supporting components of photovoltaic modules and new energy vehicles, their performance stability directly affects the efficiency of photovoltaic power generation and the safety and reliability of new energy vehicle operation. Therefore, the cable should undergo a number of performance tests, including cable structure size test, conductor DC resistance test, finished product voltage test, insulation resistance test, insulation and sheath material performance test, ozone resistance test, damp heat test, thermal life test, acid resistance Alkali test, halogen-free smoke density test, electromagnetic interference resistance, flame retardancy test, softness, wear resistance, etc. .
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