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Distributed photovoltaic inverter system can guarantee how many years?

by:Fangpusun     2020-10-29
Distributed photovoltaic power generation system is now more and more widely entered innumberable families, also more and more people are paying attention to the industry, however, vendors and customers for the service life of the solar energy and the understanding of the quality assurance period has different. The photovoltaic system components, inverter, accessories, etc should be how long is the warranty? The following is for everyone to look at the photovoltaic inverter manufacturer. 1, components, component is the most expensive part in the whole system, is a core, the solar power system of power, then, solar energy components should be a few years warranty? It's different warranty brand is different. As we all know, a line of the components of the enterprise's quality assurance are divided into two kinds, one kind is product quality assurance, one kind is generating quality assurance, product quality assurance, generally for 10 years, the quality guaranteed components can do product quality assurance 25 years; Power quality assurance for 25 years, power attenuation rate at about 20% in 25 years. 2, inverter, inverter costs no components is high, while the cost is not the highest, but it is the only power electronic parts in the entire solar system, is also a solar system of the brain, is responsible for components collected by the direct current into alternating current (ac), the effect is very important. But a good solar system, must leave the running stability, track high efficiency solar inverter, so solar inverter shall guarantee a few years? Inverter choice about the capacity of the whole system. Now quality guaranteed inverter warranty is five years, mostly after the warranty period to travel through the extended warranty to 25 years. Also, we can choose the world for a line of solar inverter enterprises of the guarantee of quality. However, generally provide 5 years quality guarantee. 3, support in addition to solar module and inverter, is another main part of the support system. Scaffolds is of photovoltaic modules have the effect of fixed protection, also is the main part of the whole system, now the two kinds of scaffold material of aluminum alloy and steel structure. Will tell from the material itself, these two types can be used more than 25 years. However, due to the different process, and there was a slight difference, for example, aluminum alloy if insufficient thickness of coating, which can lead to oxidation, the weathering. And steel support system, need to have enough thickness of the galvanized surface is usually used in hot-dip zinc process. Galvanized surface hot galvanizing process, on the average thickness of 65 microns, the thickness of the bracket base thickness can be equal to or greater than 2. 5 mm, with pressure resistance, wind resistance, corrosion resistance and service life can reach more than 25 years. If the surface treatment technology and its strength is not enough, may be three to five years will be damaged. Deserve special mention is that support system's ability to resist wind, including the positive air pressure and negative pressure, usually in the coastal city of wind loading shall be more than 12, the highest level 14, and in the inland cities, should be 12 is ok. Support system should be chosen carefully designed stent manufacturers supply of materials, should choose mature, reasonable plan, and should not be totally DIY, with experience in design, especially the steel structure support system, more shall be conducted by qualified design institute of design and validation. Otherwise, a burst of X years once the wind came, the entire solar system collapses. 4, and other accessories in addition to the components, inverter and support, the rest is cable, electrical cabinets and other auxiliary materials. Cable is commonly used because it is over, should choose uv protection, prevent aging of outdoor use of pv special dc cable, because perennial photovoltaic system through the wind rain, so as to ensure that the service life of the cable and corrosion resistance. Indoor use cable shall ensure enough carrying capacity, communication cables guarantee the anti-jamming capability, service life can reach more than 25 years. Other complementary material according to the actual usage, in the absence of artificial damage, can be in more than 25 years service life. Conclusion through the above points, we can analyze that the life of the whole system, or quality assurance shall be based on the shortest product for the period, and then through the equipment replacement and maintenance for the whole system lifetime warranty. Component of the comprehensive quality assurance for 10 years, power quality assurance for 25 years; Inverter comprehensive warranty for 5 years, can be extended warranty to 25 years; Other materials warranty shall be 25 years. More articles about photovoltaic inverter show: photovoltaic inverter in 2018 China's top ten ranking
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