The purlin is installed on a photovoltaic main beam and used for installing photovoltaic panels, and comprises: two trapezoidal side plate parts, the two trapezoidal side plate parts being arranged correspondingly; a flat plate connection part, upper bottom edges of the two. The purlin is installed on a photovoltaic main beam and used for installing photovoltaic panels, and comprises: two trapezoidal side plate parts, the two trapezoidal side plate parts being arranged correspondingly; a flat plate connection part, upper bottom edges of the two. The embodiment of the present invention provides a photovoltaic support and a method for arranging the purlins in the photovoltaic support to solve the problems in the prior art that the purlins are not uniformly stressed, the purlins have a relatively large bending moment, and the waste of. Purchasing solar purlins from Jucai Huixin can provide you with all the necessary connectors and supporting products, such as high-strength photovoltaic clamps, high-strength photovoltaic fastening screws and nuts. You don't need to spend time searching for more suppliers, saving both money and. FIG. The length of the cross beam and the distance between t reliable alternative energy sources all over the world. The analysis can be split in t ltaic structures and the. Solar photovoltaic (PV) structures such as canopies and fixed-tilt racking structures may experience large deformations under wind loading.