[Chai Jin cable tray to recommend the star product - bridge] checking the formula: Q = q1 + q2 using the formula: q1 - Cable uniform load (layers of uniform load in maximum value) (kN / m2), is uniformly distributed load tray, ladder or cable channel load; q2-- consider cabling or maintenance, the person's weight equivalent uniform load (kN / m2), calculated q2 values, human weight General press p = 90kg dollars. Showing concentrated loads and uniform load 2 according to the maximum bending moment bending moment equal conditions as shown in translation: Let pι / 4 = q2ι2 / 8 则 q2 = 2p / ι∵P = 90kg∴q2 = 180 / ι formula: P --1 people load (kg) ι - 1 support points spacing (maximum value if the fulcrum distance ranging) (m) q2--1 human equivalent uniform load (kg / m) based on the preliminary determine the bridge models, specifications and pivot pitch, consult the manufacturer of the sample data, cable tray factory, to cross-check the spacing and bridge models, until it meets the load requirement. [Chai Jin cable tray to recommend the star product - bridge] cable bridge type and variety of option 1, for an electrical interference shielding cable network or external protection (such as: corrosive liquids, combustible dust and other environmental) impacts When requested, trough cable tray should be used (FB) type trough complex corrosion shielded cable tray (with cover) 2, corrosive environment should be used (F) anti-corrosion epoxy composite flame retardant cable tray. Corbel, bracket should choose the same material, improve the life of the bridge and accessories, Baoji cable tray, cable tray. [Chai Jin cable tray to recommend the star product - bridge] (2) ladder to the tray unit resistance values ??in Table 2. Table 2 ladder to the resistance value of the tray unit (3) cable slot unit resistance value in Table 3 (4) When the cable tray after installation and connection process as a whole, each ladder side (or each cable channel) of resistance is: R = L (r + 1 / 3r ') where: R-- ladder side, namely (cable channel) Length total resistance (mΩ); r-- ladder side resistance per unit length (mΩ / m) r' - Direct plate fixing bolt contact resistance. Cable Bridge Works | Chai Jin cable tray | cable tray Baoji Chai Jin from the Tianjin cable bridge Limited. Chai Jin Tianjin Cable Bridge Co., Ltd. (www.tjcjdlqj.com) is Tianjin, metal building materials leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Chai Jin leader in cable tray with the staff warmly welcome all inquiries negotiations to create Chai Jin cable tray a better future.