Trough cable tray, Tianjin bridge to Chai Jin (certified), provided by the Tianjin Hangu Chai Jin cable tray cable tray Limited. Chai Jin Tianjin cable bridge Limited (www.tjcjdlqj.com) is specialized in "galvanized bridge, fire bridge, ladder tray, spray tray, FRP bridge, galvanized bridge" of the enterprise, the company adhering to the "integrity management, intentions of service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Cai Yu Guan. [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 of maximum value) (kN / m2), is uniformly distributed load tray, ladder or cable tray load; q2-- consider cable laying or maintenance, the person's weight equivalent uniform load (kN / m2) trough cable tray, calculate the value of q2 Ladder type cable tray, person's weight in general terms by p = 90kg. Said the concentrated load and uniform load bending moment 2 by Maximum bending moment equal conditions shown in translation: Let pι / 4 = q2ι2 / 8 则 q2 = 2p / ι∵P = 90kg∴q2 = 180 / ι where: P --1 people load (kg) ι - 1 support points spacing (maximum value if the fulcrum distance range) (m) q2--1 human equivalent uniform load (kg / m) based on the preliminary determine the bridge models, specifications and fulcrum distance cable tray fire, consult the manufacturer of the sample data, cross-check the spacing and bridge models, until meet the load requirement. [Chai Jin cable tray to recommend the star product - the bridge]. (2) When installing the horizontal position of the bridge laying cable tray, height from the ground is generally not less than 2.5m. When the bridge multi-laying, for cooling, maintenance, and anti-interference between the needs of the bridge layer should leave some distance cable bridge in parallel with the various pipe laying, its spacing shall comply with the relevant requirements. (3) the quality hangers hanger cable tray installation shall comply with the relevant technical standards when the current level of laying cable tray, support span is generally 1.5 ~ 3m a try when laid vertically, fixed spacing of not more than 2m two-phase level between adjacent bridge corbel height difference should not be greater than 10mm, two adjacent vertical deviation corbel vertical centerline of the bridge should not exceed 20mm.