[Chai Jin cable tray to recommend the star product - bridge] support and hanger configuration 1, indoor branch, hanging a short span generally take 1.5-3m. Outdoor column in the span generally take 6m. 2, support and hanger configuration on non-linear segment following principles. When the bridge width 300mm, in addition to meeting the following conditions outside the trough cable tray, in the middle of the addition of a non-linear segment should support and hanger. 3, when the bridge multi-center distance between layers is set for cable tray which sell 200,250,300, 350mm. 4, the bridge should remain straight segment joints every 50m 20-30mm (metal bridge). [Chai Jin cable tray to recommend the star product - the bridge] expansion and contraction problem: As the ambient temperature changes, expansion and contraction of the steel cable tray will appear phenomenon. Outdoor bridge influenced by temperature environment such as the maximum temperature is 40 ℃ cable tray manufacturers, the lowest temperature of -20 ℃, the maximum amount of shrinkage cable tray obtained the following formula: Δt = 11.2 × 10-6 × 60deg (degrees) × 1000mm conclude: When the temperature difference is 60 ℃, Δι = 0.672mm / m when the temperature difference is 50 ℃, Δι = 0.560mm / m difference in temperature is 40 ℃, Δι = 0.448mm / m cable line segments in engineering design bridge expansion joints should be considered, spacing expansion joints take advice given in the following: When the temperature difference is 40 ℃ for 50m; 40m when the temperature difference is at 50 ℃; for 40m when the temperature difference is at 60 ℃; cable tray which sell | Tongliao cable bridge | bridge provided by the Tianjin factory Chai Jin Chai Jin cable bridge Limited. Chai Jin Tianjin cable bridge Limited (www.tjcjdlqj.com) strong, credible, in Tianjin metal building materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chai Jin cable tray and you hand into the brilliant, for a better future!