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Help CenterSpecifications, Parameters, Prices, and Manufacturers of Hebei Hengshui Xqj-t Type Ladder Cable Trays
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Jizhou Yike Composite Materials Co., Ltd. specializes in the production of various types of FRP cable trays, FRP cable troughs, stepped cable trays, tray-type cable trays, large-span cable trays, and trough-type FRP cable trays. With the same quality, we offer the lowest price. The main advantages of the FRP cable trays produced by our company are: high mechanical strength. It has both the rigidity of metal cable trays and the toughness of FRP cable trays. It has good corrosion resistance, strong anti-aging performance, beautiful appearance, convenient installation, and a long service life. Epoxy resin and epoxy resin composite cable trays are suitable for use in highly corrosive environments, large-span, and heavy-load conditions.
Specifications and models of FRP cable trays: 100*50 100*100 200*100 200*150 300*100 trough-type cable trays. Manufacturer of cable troughs. 300*150 300*200 400*100 400*150 400*200 trough-type cable trays. Specifications and models of ladder-type FRP anti-corrosion cable trays: 100*100, 150*100, 200*100, 200*150, 200*200, 300*100, 300*150, 300*200, 400*100, 400*150, 400*200, 500*100, 500*150, 500*200, 600*100, 600*150, 600*200, 600*250, 800*100, 800*150, 800*200, 1000*200, 250*150. Specifications and models of trough-type FRP anti-corrosion cable trays: 100*60, 100*75, 100*100, 150*100, 200*100, 200*150, 200*200, 300*100, 300*150, 300*200, 400*100, 400*150, 400*200, 500*100, 500*150, 500*200, 600*100, 600*150, 600*200, 600*250, 800*100, 800*150, 800*200, 1000*200, 250*150. Specifications and models of tray-type FRP anti-corrosion cable trays: 100*60, 100*75, 100*100, 150*100, 200*100, 200*150, 200*200, 300*100, 300*150, 300*200, 400*100, 400*150, 400*200, 500*100, 500*150, 500*200, 600*100, 600*150, 600*200, 600*250, 800*100, 800*150, 800*200, 1000*200, 250*150
I. Instructions for the model preparation of epoxy resin and epoxy resin composite cable trays:
The model preparation of epoxy resin and epoxy resin composite cable trays is classified by structure:
1. Trough type (C) 2. Ladder type (T) 3. Tray type (P)
II. Selection of specifications for epoxy resin and epoxy resin composite cable trays:
The cable filling rate shall not exceed the standard specified value. For power cables, it can be 40 - 50%, and for control cables, it can be 50 - 70%. In addition, a 10 - 25% margin for project development should be reserved. See the following table for the selection of the cross - sectional area of the cable tray. All bends and accessories should meet the engineering layout conditions and be compatible with the cable tray.
III. Selection of the load grade for epoxy resin and epoxy resin composite cable trays:
In addition to its own weight, the cable tray should also include the mechanical load of the wires and cables it can bear. The working uniform load should not be greater than the rated uniform load of the selected load grade. When the cable tray bears the rated uniform load, its
relative deflection for epoxy resin and epoxy resin composite should not be greater than 1/200. Material Support and hanger span mm Rated uniform load N / m Deflection value (not greater than) mm Side height 100mm Side height 150mm Side height 200mm Epoxy resin composite 2000
1000 1850 3100 10 The strength of the load on the epoxy resin and epoxy resin composite cable tray is related to the reliability and durability of the structure and is an important basis for structural design. In actual use, in addition to the cable load and its own weight, the cable tray should also consider the following loads:
1. Cable trays installed outdoors need to consider the loads of wind, rain or ice. For earthquake - prone areas, inertial loads should also be considered.
2. In addition to bearing normal mechanical loads, cable trays should not be used as pedestrian passages in principle. If they need to be used for other purposes such as pedestrian passages, special designs for this purpose should be negotiated with the user.
3. In the load design of cable trays, not only vertical loads but also longitudinal and transverse loads during installation and use should be considered (such as the longitudinal traction force generated when laying cables and the transverse load generated when a ladder leans against the cable tray).
IV. Configuration of supports and hangers for epoxy resin and epoxy resin composite cable trays:
1. The short span of indoor supports and hangers is generally 1.5 - 3m. The span of outdoor columns is generally 6m.
2. The configuration of supports and hangers for non - straight sections should follow the following principles: When the width W of the cable tray is less than 300mm, a support or hanger should be installed on the straight - section side 300 - 600mm away from the junction of the non - straight section and the straight section; When the width w of the cable tray is greater than 300mm, in addition to meeting the above conditions, an additional support or hanger should be added in the middle of the non - straight section.
3. When the cable trays are arranged in multiple layers, the center - to - center distance between layers is 200, 250, 300, 350mm.
V. Technical requirements for epoxy resin and epoxy resin composite cable trays:
The structural design is reasonable, with the advantages of advanced technology, beautiful appearance, smooth surface, uniform thickness, high mechanical strength, convenient installation, corrosion resistance and aging resistance. The material of the cable tray is epoxy resin composite, with a metal skeleton inside. The shape of the metal skeleton is the same as the cross - section of the cable tray. The material is cold - rolled steel plate, with a thickness of 1.5 - 2.0mm (1.5mm for 150 ≤ B ≤ 300; 2.0mm for 400 ≤ B ≤ 800). The metal surface should be specially treated and a soft bonding layer should be added to prevent the metal skeleton from delaminating from the main anti - corrosion layer due to different thermal expansion coefficients. The cable tray has a main anti - corrosion layer outside the metal skeleton. The average thickness of the anti - corrosion layer is 1.5mm - 2.0mm, and the specific gravity is 1.7 - 2.0g/cm3. There must be a high - density, damage - resistant protective layer outside the main anti - corrosion layer, which can reflect ultraviolet rays. The surface is smooth and beautiful to improve the aging performance and service life of the cable tray. The inner - lined glass fiber cloth is woven from three - free (alkali - free, wax - free, twist - free) glass fibers. The filler uses light - weight aluminum hydroxide to reduce its own weight, thereby improving the bearing capacity of the cable tray. Any end face, connection face and connection hole of the cable tray should have measures to prevent strong corrosion and strong external force. It is required that the main anti - corrosion layer, bonding layer and protective layer be formed by hydraulic pressure at one time. It has the ability to resist strong corrosion, and can have a service life of 30 years in harsh environments such as acid, alkali, salt and ammonia without aging or fading. The flame - retardant oxygen index of the cable tray is not less than 30%. Stainless steel bolts are used for connection bolts.
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