Photovoltaic cable is a kind of cable specially used for solar photovoltaic system, which is mainly used to connect photovoltaic modules, inverters, transformers and other equipment to transmit electric energy. Since photovoltaic systems are usually installed in outdoor environments, photovoltaic cables need to have weather resistance, corrosion resistance, abrasion resistance and other characteristics to ensure their long-term stable service life.
The conductor part of photovoltaic cable usually adopts copper conductor or tinned copper conductor, because copper has excellent conductivity and corrosion resistance, which can ensure the electrical performance and service life of the cable. At the same time, tin plating can further improve the corrosion resistance of copper conductors, thus enhancing the durability of cables.
The insulation layer is a very important part of the photovoltaic cable, which can protect the cable from the impact of the external environment and ensure the electrical performance and safety performance of the cable. Photovoltaic cables usually use radiation cross-linked polyolefin insulation, which has excellent heat resistance, weather resistance and electrical performance, and can maintain stable performance in high and low temperature environments.
The sheath is also an indispensable part of the photovoltaic cable, which can protect the cable from mechanical damage and environmental factors, and further enhance the durability and safety of the cable. Photovoltaic cables usually use irradiation cross-linked polyolefin sheath, which has good wear resistance, oil resistance, chemical corrosion resistance and other characteristics, and can maintain stable performance in various harsh environments.
In general, photovoltaic cable is an indispensable part of the solar photovoltaic system, and its quality and performance have a crucial impact on the stability and safety of the entire system. Therefore, when selecting and using photovoltaic cables, it is necessary to fully consider their weather resistance, corrosion resistance, wear resistance and other characteristics to ensure the long-term stable operation of the entire photovoltaic system.
In addition to the above mentioned characteristics, photovoltaic cables have other important performance indicators, such as flame retardancy, low smoke and zero halogen. These performance indicators are also important basis for evaluating the quality of photovoltaic cables.
Flame retardancy refers to the ability of cable to delay combustion in case of fire. Cables with good flame retardancy can slow down the burning speed in case of fire, thus providing more time for personnel evacuation and fire fighting. Low smoke and halogen-free means that the cable produces less smoke and harmful gases when burning, which will not cause excessive harm to human body. This performance is particularly important in emergency situations such as fire, and can reduce the harm to human health.
In addition to the characteristics mentioned above, there are many other performance indicators of photovoltaic cables to consider. For example, in some special application scenarios, cables need to be explosion-proof, radiation proof and other special properties. Therefore, when selecting and using photovoltaic cables, it is necessary to select appropriate cable models and specifications according to specific application scenarios and needs.
In a word, as an important part of the solar photovoltaic system, the quality and performance of photovoltaic cables have a crucial impact on the stability and safety of the entire system. Therefore, when selecting and using photovoltaic cables, it is necessary to fully consider their characteristics, performance indicators, application scenarios and other factors to ensure the long-term stable operation of the entire photovoltaic system. At the same time, attention should be paid to safety issues during the installation and use of cables to avoid accidents.
