Stainless steel is a corrosion resistant steel alloy with a minimum of 10% chromium. There are different grades and surface finishes of stainless steel produced to accommodate the environment in which the material will be implemented. Unlike carbon steel, stainless steel does not rust when exposed to air and moisture due to the sufficient amount of chromium present. The chromium creates an invisible passive film of chromium oxide that will not let oxygen attack the surface and prevents rusting of the iron base.
Yuhong Group is a stainless steel manufactory of more than 20 grades of Stainless Steel.
Stainless Steel Flange,Stainless Steel Pipe Flange,Din Forged Stainless Steel Flange YUHONG GROUP CO.,LIMITED , https://www.alloypipeline.com
In terms of market access standards for photovoltaic products, opinions put forward quantitative standards on the two major indicators of photoelectric conversion efficiency and attenuation rate. It is understood that the photoelectric conversion efficiency of photovoltaic modules refers to the ratio of the maximum output power of photovoltaic modules to the solar power on the components under standard test conditions; the decay rate of photovoltaic modules refers to the operation of photovoltaic modules after a period of time, under standard test conditions. The ratio of the maximum output power to the initial maximum output power of the production run.
It is clear that the photoelectric conversion efficiencies of polycrystalline silicon battery modules and monocrystalline silicon battery modules are not less than 15.5% and 16%, respectively, and the photoelectric conversion efficiency of high-concentration photovoltaic modules is not less than 28%; polycrystalline silicon, monocrystalline silicon and thin film battery components are From the date of operation of the project, the decay rate within one year is not higher than 2.5%, 3% and 5% respectively. After that, the annual decay rate is not higher than 0.7%, and the decay rate is not higher than 20% in the whole life cycle of the project.
The opinion puts forward that the photovoltaic “leaders†plan should be implemented, and the standards that should be met by the “leading runners†advanced technology products in 2015: the photoelectric conversion efficiencies of polycrystalline silicon battery modules and monocrystalline silicon battery modules reached 16.5% and 17% respectively. The photoelectric conversion efficiency of high-concentration photovoltaic modules reaches more than 30%.
With clear opinions, the National Energy Administration arranges a special market scale to implement the “Leader†program every year, requiring the project to adopt advanced technology products. At the same time, the state supports various public welfare projects such as electricity-free population use, remote areas lack of electricity and photovoltaic poverty alleviation, national foreign aid projects, national and provincial energy authorities to implement various types of photovoltaic power application demonstration projects, all levels of localities The government's use of financially funded photovoltaic power generation projects and photovoltaic power generation projects installed at various government agencies' construction facilities have prioritized the use of "leaders" advanced technology products.
The opinion puts forward that it is necessary to strengthen the inspection and certification of photovoltaic products, strengthen the quality management of engineering products, strengthen technical monitoring and supervision, and improve the information monitoring system for photovoltaic power generation operations.
STAINLESS STEEL PRODUCTS
Three departments issued opinions: improving market access standards for photovoltaic products
The National Energy Administration, the Ministry of Industry and Information Technology, and the National Certification and Accreditation Administration jointly issued the "Opinions on Promoting the Application and Industrial Upgrade of Advanced Photovoltaic Technology Products" on the 8th, proposing to improve the market access standards for photovoltaic products and implement the "leaders". meter...
The National Energy Administration, the Ministry of Industry and Information Technology, and the National Certification and Accreditation Administration jointly issued the "Opinions on Promoting the Application and Industrial Upgrade of Advanced Photovoltaic Technology Products" on the 8th, proposing to increase the market access standards for photovoltaic products and implement the "Leader" program. To guide the advancement of photovoltaic technology and industrial upgrading.