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[China Glass Network] Component-type building photovoltaic systems include: building-type photovoltaic components, such as photovoltaic tiles, photovoltaic tiles, photovoltaic coils, etc.; composite photovoltaic building components, such as photovoltaic curtain walls, photovoltaic windows, photovoltaic canopies, photovoltaic sun visors, Photovoltaic balcony panels, photovoltaic lighting roofs, etc., two. The installation forms include: laying photovoltaic coils directly on the flat roof or adopting photovoltaic tiles on the slope roof; directly replacing the photovoltaic curtain wall of the building curtain wall and the photovoltaic lighting roof directly replacing some or all of the lighting glass.
According to experts, the component-type photovoltaic system has a specific building envelope function. The photovoltaic system realizes the corresponding building function while generating electricity. It is different from the ordinary ground-based photovoltaic power station and different from the conventional building envelope structure; It not only meets the power generation function and electrical safety performance requirements of the photovoltaic system, but also meets the physical properties and unique decorative functional requirements required for the building's perimeter enclosure. Its engineering acceptance involves many aspects such as building electrical, building envelope and building decoration.
Experts said that in accordance with the "acceptance criteria" construction project quality acceptance criteria and its specified construction engineering division project, the building photovoltaic system engineering can be divided into three parts: building energy conservation, building electrical and architectural decoration and decoration according to professional nature. Sub-subsection of the subordinate. Each sub-division can be divided into several sub-projects. Among them, the building decoration and decoration division project can be generally divided into several sub-projects such as pedestal, bracket, photovoltaic array, etc. When an acceptance unit project includes photovoltaic curtain wall, photovoltaic lighting roof, photovoltaic shading or photovoltaic roof, etc. In the form of photovoltaic arrays, it can be divided into several sub-projects for acceptance according to different PV arrays. The building electrical segment project can be divided into several sub-projects for acceptance according to different types of PV array.
Building curtain wall is an area where photovoltaic building integration applications entered earlier. Photovoltaic curtain walls provide practical experience for photovoltaics in conjunction with other parts of the building. Recently, Chinese curtain wall experts, experts from the State Council who participated in the construction of a number of building curtain wall industry standards, senior chief engineer of Shanghai Construction Engineering Supervision Company, and Xi Shizhen, an expert of the China Building Metal Structure Association Photovoltaic Building Application Committee, introduced the Acceptance Criteria. Implementation of building photovoltaic projects. Mr. Xi is optimistic about the prospect of photovoltaic building thermal integration. He also said that BIM and PBIM are used in building photovoltaic engineering; 3D printing, cloud computing application verification and conceptual design in photovoltaic engineering; photovoltaic engineering integrated into green building, It is the future direction of photovoltaic building.
Reporter: Why is the special acceptance of building photovoltaic systems?
Xi Shizhen: The building photovoltaic system is not only a photovoltaic power station, but also a building exterior structure and an external decoration structure. It must have the necessary safety of the outer protective structure, the aesthetics of the outer decoration, and a good and stable power generation function. It is different from the ordinary ground photovoltaic power station, which is different from the conventional building envelope structure. It is a comprehensive and multi-disciplinary system engineering. Therefore, the building PV system should be specially checked and accepted during the acceptance of the construction project. "China Construction News · Photoelectric Buildings": Which national standards should be met for the acceptance of building photovoltaic projects?
Xi Shizhen: (1) The basic attribute of building photovoltaic engineering is construction engineering, which should meet the "acceptance criteria". (2) Photovoltaic projects can be classified into photovoltaic windows, photovoltaic shading, photovoltaic roofs, and photovoltaic curtain walls, all of which belong to the building exterior structure. The project also belongs to the exterior decoration project, including building electrical, and therefore should meet the corresponding professional standards. (3) Photovoltaic engineering is a branch of construction engineering. The acceptance shall be in accordance with the engineering standards such as “Photovoltaic Power Generation (Entry “Photovoltaic Power Generation†provided by the industry encyclopedia) Engineering Construction Organization Design Specification†and “Photovoltaic Power Generation Engineering Acceptance Specificationâ€. (4) Photovoltaic engineering is energy-saving engineering and green engineering, and acceptance should meet relevant green standards and energy-saving standards. (5) The application of photovoltaic engineering to photovoltaic devices and photovoltaic accessory products shall comply with the national standards of relevant products.
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