Why does Yangzhou JA Solar always exclude me? It's normal. If you have any questions, you can ask the company staff.
The double days off system means working 5 days a week and taking 2 days off. These two days are generally set on Saturday and Sunday. However, in real situations, different companies have different regulations. . The two-day scheduled leave system is mainly suitable for some large companies, units or companies with many customers. On the other hand, the scope of the rotating leave system is broader and may be applicable to different units or companies.
JA Solar was founded in 2005 and is a manufacturer of high-performance photovoltaic products. Its industrial chain covers silicon wafers, cells, modules and photovoltaic power plants.
About heater insulationsolar water
The production of solar modules requires a multi-step production process, which may involve some duplication of work and high labor intensity. The production process requires a series of processes such as crystalline silicon cutting, processing, cleaning, photovoltaic cell production, cell assembly and module packaging. These processes require the use of a lot of mechanical equipment and manual operations, as well as high temperatures. and high pressure, etc., so there may be a certain degree of labor intensity. However, with the development of technology, solar power manufacturing enterprises are constantly optimizing production processes, improving production efficiency, improving the production environment, reducing the labor intensity of workers, thereby improving the effectiveness of the pproduction and quality of products.
From an ideal point of view, this could be the case. However, apart from water tank insulation, solar water heater insulation also includes insulation of vacuum tubes, pipelines, etc.
Assume the vacuum tube has no heat dissipation, the pipeline has no heat dissipation, and the water tank has no heat dissipation (fully enclosed). However, the vacuum tube will "rest" at night because there is no light, so the temperature will not continue to rise. In addition, solar water heaters are low temperature products, and the temperature will not exceed 100 degrees no matter how high they are. So there is a certain scientific relationship between the number of vacuum tubes and the capacity of the water tank.