Roof area directly determine the capacity of the photovoltaic power generation project, is the foundation of elements, whether appendages exist on roof, the wind tower, fan, enclosed rooms, parapet and so on, when the design need to avoid the shadow effect; Roof toward decides the photovoltaic stents, components, serial
roof area directly determine the capacity of the photovoltaic power generation project, is the basic elements. Roof appendages, wind tower, fan, enclosed rooms, parapet and so on. And need to be designed to avoid the shadow effects; Photovoltaic roof direction determines the stent series, components, and the principle of the layout of the junction box. For east-west roof, for example, just whether you need the phalanx of setting Angle, when the components in series, Yin and Yang face should as far as possible avoid interconnection, mother box and inverter DC input should be as same as the roof toward the array. Roofing materials basically divided into caigang watts, the mixture of ceramic tile, steel, etc. Among them, caigang watts divided into vertical side whipstitch, bite edge ( Type Angle dancing, keel for the diamond) Type, card button ( Button hidden card type) And fixed connection type ( Screw type, trapezoid bulge) 。 After the first two need special adapters, two need stamping and fixed. Ceramic tile roof can use special adapter, also can not with a fixed roof, but by its own weight attached to the roof and the roof slope. Steel - Concrete roof generally support infrastructure needs to be done. The foundation and roof can take root, also may not take root. Key factor is the roof waterproof, resistance to wind load, roof design load, etc. The service life of the roof design determines the service life of the photovoltaic power station. Photovoltaic power generation system according to the principle of photovoltaic effect converts solar energy into electrical energy, no pollution, no radiation. Both inverter, power distribution cabinet and other electronic equipment through the electromagnetic compatibility test, harmless to the human body. Photovoltaic power generation systems convert solar energy into electrical energy, no noise, inverter is not higher than 65 db noise index, no harm of noise. Distributed generation system ban stacked near flammable items. In the event of fire, personnel and property loss is incalculable. In addition to basic fire safety inspection measures, photovoltaic system has special requirements for self inspection, identification of arc and function of fire detection, in order to reduce the possibility of a fire. In addition, every 40 meters must set aside the fire protection and maintenance of channels, and is easy to operate emergency DC system must have a disconnect switch.