The PV array installation techniques for solar panels installed on the roof

- Jan 14, 2019-

If it is a square array of solar panels installed on the roof, our company can provide the technology of solar panel installation PV array, in advance to deal with the structure of the building, materials, durability, solar panel installation site structure Check the calculation of the strength and other strengths to determine the bearing capacity of the roof can indeed withstand the quality of the solar panel photovoltaic array and additional loads such as wind pressure and snow. For the solar panel photovoltaic array bracket, it should be fixed by steel hot-dip galvanized joints or stainless steel anchor bolts protruding from the reinforced concrete base. The main rib of the reinforced concrete pedestal should be anchored in the main structure. If it is not restricted by structural conditions, measures should be taken to increase the adhesion between the pedestal and the main structure.

 

The embedded parts of the steel base and the top of the concrete base shall be coated with anti-corrosion paint according to the designed anti-corrosion level. After the casting of the pedestal is completed, it should be waterproofed, and it is strictly forbidden to leak or leak. It should meet the requirements of the current national standard "Code for the Acceptance of Roofing Engineering Quality" (GB 50207-2002).

 

Cables that pass through the roof, floor or wall, the gap between the waterproof casing and the main body of the building must be waterproof and sealed, and the surface of the building should be smooth and smooth.

 

The application technology of solar photovoltaic system for civil buildings involves planning, building structure, electrical and other specialties. It should also comply with the relevant regulations of relevant standards and regulations, mainly including the "General Rules for Civil Building Design" (GB 50352-2005) and "Residential Building Codes" (CB). 50368—2005), “Code for Design of Power Distribution for General Electric Equipment” (CB 50055-1993), “Code for Planning of Power Supply and Distribution Systems” (GB50052-1995), “Building Electrical Installations” (CB 16895. 6- 2000) , "Electrical Design Code for Civil Buildings (JGJ/T16-2008)

 

During the construction of the photovoltaic system, the structure and ancillary facilities of the building shall not be damaged, and the ability of the building to withstand various loads within the design life of the building shall not be affected. If it is necessary to cause partial damage due to construction needs, it should be repaired at the end of construction.

 

According to the number of solar panels, the installation size and the square angle of the optimized design, the square matrix bracket and frame are processed.

 

Its size and materials should meet the design requirements. The overall structure should be determined according to the quality of the solar panel assembly, the size of the bracket, the local wind and snow, etc., so that the solar panel square array has sufficient strength, rigidity and stability.

 

Usually the frame and bracket are made of hot-dip galvanized steel or rust-proof angle steel. The square array installed on the coast or on the island can also be made of stainless steel in consideration of the prevention of salt spray.

 

Solar panel components and frame racks and fixing bolts, connecting cables and casings, wiring boxes and other accessories must be shipped to the site before installation.

 

The tools and spare parts required for solar panel installation must be fully prepared, especially when the site is in the far-off area. If you are not well-considered, the lack of a tool or a bolt can cause great trouble and even affect the progress of the entire project.