Henan InfoQuick bridge voltage electrical equipment Co., Ltd. (www.jtqiaojia.com) is located in the Economic Development Zone of Zhengzhou, Henan Zhengzhou clouds technical Temple office, Contact: Mr. Wang distribution box room alignment tray manufacturers, cable tray vertical shaft, trough cable tray, tray cable tray, Ladder type cable tray room alignment bridge vendors, DJ-type large span cable tray, CABLOFIL mesh cable tray, hot dip galvanized cable trays, stainless steel cable tray, aluminum cable tray, room alignment tray, FRP cable tray, CSP alloy plastic cable tray routing bridge making room, cable tray installation - Henan InfoQuick bridge voltage electrical equipment Co., Ltd. cable tray size selection and calculation: cable tray calculate the total load G: G Total = n1q1 + n2q2 + n3q3 + ...... where: q1, q2, q3, ...... for the cable weight per unit length (kg / m) n1, n2, n3 ...... root of the corresponding cable should be less than the number of cable tray G allowable load when the cable tray or belt guard outside, but also included other factors contained water-borne and wind. Distribution box room alignment bridge, shafts cable tray, trough cable tray, tray cable tray, Ladder type cable tray, DJ-type large span cable tray, CABLOFIL mesh cable tray, hot dip galvanized cable trays, stainless steel cable trays, aluminum cable tray, room alignment bridge, FRP cable tray, CSP alloy plastic cable tray, cable tray installation - Henan InfoQuick bridge voltage electrical equipment Co., Ltd. cable tray wiring (1) in the room when using the cable tray routing, Its cable should not have jute or other material easily retardant outer sheath. (2) When there is corrosion or humid place using special cable tray routing, should take appropriate protective measures differ according to the corrosive medium, and should use plastic-sheathed cable. (3) Cable tray (tray) height from ground level when installed in general should not be less than 2.50m, 1.80m following section should be added to the metal cover to protect from the ground when mounted vertically, but laying in the electrical rooms (such as distribution ) except when the chamber within the electrical shaft, technology layer. (4) horizontal cable tray installation, according to the load curve should be supported to select the best span, the span is generally 1.5 ~ 3m. Vertical laying, fixed point spacing should be less than 2m. (5) sets of cable tray is installed in the same highly parallel between each adjacent cable tray should consider maintenance, overhaul distance. (6) on the cable tray spacing can be no laying of cables, cable tray cross-section in the filling factor: power cables should not exceed 40%; control cables should not exceed 50%. (7) The following different voltages, different uses of cables laid in the same layer should not bridge: