[Chai Jin cable tray to recommend the star product - bridge] (2) ladder to the tray unit resistance values ??in Table 2. Table 2 in units of resistance ladder tray (3) cable channel unit resistance values ??in Table 3 (4) When the cable tray installation and connection process as a whole, the ladder each side (or each cable channel) of resistance: R = L (r + 1 / 3r ') where: R-- ladder side, i.e., (cable trays) Length total resistance (mΩ); r-- ladder side resistance per unit length (mΩ / m) r' - Direct plate bolt contact resistance. [Chai Jin cable tray to recommend the star product - Bridge] 1.3 tray, trunking and hangers for use in corrosive environments, corrosion-resistant materials should be used for manufacturing rigid. Or take anti-corrosion treatment, anti-corrosion treatment should meet the requirements of the project environment and durability. For corrosion resistance demanding or requiring a clean place, should use aluminum cable tray. 1.4 bridge in the fire safety requirements of section galvanized tray, cable ladder can be galvanized tray manufacturers, adding with a fire-resistant or flame retardant properties of plate galvanized tray suppliers, network, and other materials constitute a closed or tray semi-enclosed structure. [Chai Jin cable tray to recommend the star product - the carrying capacity of the bridge] is usually cable tray cable tray load characteristic curve represents. As can be seen from the graph load galvanized tray how to sell, the size of cable tray load capacity is the amount of a bridge away from the relevant specifications and support. The same distance between the support and the amount of deformation corresponding to the convex bending. Side height of the bridge carrying capacity, the height of a small bridge carrying capacity is small. In addition, when the load capacity planning, is the same, for the same cable tray specifications. Small distance from the support than the support of a large amount of bending deformation is small. Under normal circumstances every l.5 ~ 2.0m cable tray installation of a set of brace. Galvanized Bridge Works | Lishui galvanized tray | Chai Jin-known manufacturers of cable tray cable tray provided by the Tianjin Chai Jin 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!