Photovoltaic power station have to meet the requirements which the analysis of the special cable?

Solar energy technology will be one of green energy technology in the future, as the photovoltaic power station using the environment more and more complicated, the requirements of the photovoltaic cable is also more and more. If you use the common cable, cable sheath of uv protection performance is poor, lead to cable jackets

solar technology will be one of green energy technology in the future. With the use of photovoltaic power station environment more and more complicated, the demand for pv cable is becoming more and more big. If you use the common cable, cable sheath of uv protection performance is poor, lead to cable protection aging, affect the service life of the cable, cable short circuit, fire alarm or dangerous damage, etc. Pv cable need to meet any requirements? A, high and low temperature characteristics require low temperature: western and northern winter temperature is relatively low, extreme regions of low temperature up to about 40 ℃ below zero. This requires a cable with good low temperature resistance. High temperature resistant: eastern and southern areas of the surface temperature is easy to reach more than + 70 ℃, the cooling effect is poor areas of extreme temperature could be more than + 90 ℃. This requires a cable material temperature can meet the requirements of working under extreme temperature of power plant. two Wet and heat protection for application environment: fish light complementary projects in many power stations built directly in fish ponds or on the surface, need cable to work long hours in damp environment. The frequent changes of temperature and humidity of insulation and sheath material aging has a direct impact. Special requirements: considering the hot and humid environment influence factors of the aging of the insulating sheath material performance, selection of insulating sheath material + 90 ℃ and 85% humidity. Follow standard: according to the GB/T2423. 3 - 2006 the method specified in the experiment. After test, insulation and sheath of tensile strength and elongation at break of the lower rate shall not exceed 30%. Three, resistant to sunlight, ultraviolet required: many of the photovoltaic power station cable are bare. In most cases, from solar modules to total box, even to the inverter cable is directly exposed. This requires a cable must be able to withstand the sunlight and ultraviolet radiation, and vertical in the sunlight and ultraviolet radiation for a long time to work normally. Application environment: qinghai, Tibet, xinjiang, gobi desert and desert regions, resistant to sunlight, ultraviolet ray application environment: coast, tidal flats, salt pans and other special regional special requirements: photovoltaic cable is suitable for this kind of environment use tinned copper conductor, in order to improve the oxidation resistance and corrosion resistance of the conductor. The following standards: GB/T2423. 17 - Salt spray test of 2008 regulations and GB/T2951. 12008 ph test. V。 Ozone corrosion resistance requirements of special requirements: power station installed in areas of high ozone levels. Ozone has certain corrosion effect to cable sheath, which accelerate the ageing of the sheath, affect the use of the cable. Traditional cable doesn't consider the effect of ozone on the cable sheath, and the design of the photovoltaic cable considering the impact.