Tra i sistemi fotovoltaici, qual è il migliore, la staffa in lega di alluminio o la staffa in acciaio?

The climate problem brings frequent extreme weather, and the use of clean energy is the fundamental solution to the climate problem, and the long-term and efficient use of clean energy requires the support of high-quality photovoltaic mounting solutions. Generally speaking, according to the material of photovoltaic brackets, there are aluminum alloy brackets, steel brackets and concrete brackets. Today we mainly look at the differences between aluminum alloy brackets and steel brackets. Which one is safer and more stable to use.

When we choose a photovoltaic support, we generally consider the wind and snow resistance, corrosion resistance, function, service life, etc. of the photovoltaic support, and of course, the price of the photovoltaic support. Let’s first look at the anti-corrosion aspect. In fact, the service life of the photovoltaic support has a lot to do with the strength of the anti-corrosion aspect. Photovoltaic brackets are highly anti-corrosion, and the service life will be increased, otherwise, it will be shortened. The surface of the aluminum alloy bracket is anodized to form a dense oxide film, the anti-corrosion performance is much better than that of the steel bracket, and the surface aesthetics of the aluminum alloy photovoltaic bracket is also better than that of the steel bracket. The surface of the steel bracket is treated with hot-dip galvanizing, which is generally required to be above 65μ. Under normal and regular maintenance, it can ensure a service life of 20 years.

Regarding the strength of the aluminum alloy bracket and the steel bracket in the photovoltaic bracket, the strength of the aluminum alloy (usually selected aluminum alloy model 6063-T5) is weaker than the strength of the steel (Q235B), so the wind resistance strength requirement is relatively high, or practical application For photovoltaic supports with relatively large spans, it is recommended to use steel supports to meet the strength requirements, while aluminum alloy photovoltaic supports are mostly used in general areas.

In terms of usage, there is a big difference. Aluminum alloy brackets are better used in solar energy on the roof of civil buildings, and there are more, but because of its poor bearing capacity, it cannot be used in power plants. Compared with the aluminum alloy bracket, the steel bracket is easier and faster to install, and the appearance is more beautiful.

In terms of price, the price of aluminum alloy on the market is about three times that of steel brackets. Therefore, the cost of aluminum alloy photovoltaic brackets will be much higher than that of steel brackets. Therefore, friends also choose a photovoltaic support that suits them according to their own engineering needs. In addition, it is also necessary to identify the photovoltaic support manufacturer!

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