On the roof installation of photovoltaic power station is common problem?

In recent years, with the national general improvement of living standards, there are a lot of rural families in their installed on the roof of the photovoltaic power station. Users will feel without installing photovoltaic power station has radiation, installed will have harm to the body? Or the roof crushed etc.

in recent years, with the general improvement of national living standards, many rural families, photovoltaic power station was installed on the roof. But there is no installation of photovoltaic power station, users will feel the radiation, installation of photovoltaic power station is harmful to their health? Or roof will be crushed, and many other problems, then install household photovoltaic power station exactly have radiation? Household photovoltaic power station by photovoltaic module, photovoltaic inverter, pv stents, pv cable, etc. Photovoltaic (pv) power generation through the characteristics of the semiconductor can convert light energy directly into direct current, then through converting dc to ac inverter for our use. No chemical or nuclear reaction, so a photovoltaic power generation will not have a shortwave radiation. As a result, photovoltaic power generation is a clean no pollution, no radiation, inexhaustible energy. It is harmful to the body? For photovoltaic modules did not radiation, on the contrary, it can be reflected in the sunshine some harmful ultraviolet light, harmless, so it can help us to reflect some harmful ultra-violet rays! At the same time, photovoltaic power generation is a kind of clean energy. We use the photovoltaic power station power generation, this is equivalent to time saving is about 0. 4 kilograms of standard coal. At the same time, we reduced the 0. 272 kilograms of carbon dust, 0. 997 kg of carbon dioxide, 0. 03 kg sulphur dioxide and 0. 015 kilograms of nitrogen oxide emissions. At this rate, the quality of our air will be better and better, the smoke will also drop, it will only is of great benefit to our body! The roof will be broken? Home roof load is usually 200 kilograms per square meter, and the current commonly used polycrystalline pv module and the weight of the support system for 30 kilograms per square meter, bearing problem is also a key consideration of each photovoltaic power station design. Professional design will give full consideration to the fixed load pressure, wind load and snow load, seismic load, etc. The roof.