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100*50 100*100 200*100 200*150 300*100 Trough cable tray Cable trough manufacturer 300*150 300*200 400*100 400*150 400*200 Trough cable tray Ladder-type FRP anti-corrosion cable tray model specifications: 100*100, 150*100 cable troughs, 200*100, 200*150, 200*200, 300*100, Trough cable tray 300*150, 300*200, 400*100 FRP ladder-type cable tray, 400*150, 400*200, 500*100, 500*150, 500*200, 600*100, 600*150, 600*200, 600*250, 800*100, 800*150, Long-span cable tray 800*200, 1000*200, 250*150 Trough FRP anti-corrosion cable tray model specifications: 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 Tray-type cable tray, 500*150, 500*200, 600*100, 600*150, 600*200 FRP cable tray professional manufacturer, 600*250, 800*100, 800*150, 800*200, 1000*200, 250*150 Tray-type FRP anti-corrosion cable tray model specifications: 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 divided from the structure:
1. Trough type (C) 2. Ladder type (T) 3. Tray type (P)
II. Selection of the specifications of 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. The selection of the cross - sectional area of the cable tray is shown in the following table. All kinds of bends and accessories should meet the engineering layout conditions and be compatible with the cable tray.
III. Selection of load grades 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, the relative deflection of epoxy resin and epoxy resin composite ones should not be greater than 1/200. Material, span of supports and hangers (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 load strength of epoxy resin and epoxy resin composite cable trays 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 self - weight, the following loads should also be considered for the cable tray:
1. For cable trays installed outdoors, the loads of wind, rain or ice should be considered. For earthquake - prone areas, inertial loads should also be considered.
2. In principle, the cable tray should not be used as a pedestrian passage except for bearing normal mechanical loads. If it is to be used as a pedestrian passage or for other purposes, a special design for this purpose should be negotiated with the user.
3. In the load design of the cable tray, not only the vertical load but also the longitudinal and lateral loads existing during the installation and use process should be considered (such as the longitudinal traction force generated when laying cables and the lateral 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 generally uses 1.5 - 3m. The span of outdoor columns generally uses 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 set on the straight - section side 300 - 600mm 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.
5. Technical requirements for epoxy resin and epoxy resin composite cable trays:
The structure 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 of the metal skeleton is cold - rolled steel plate, with a thickness of 1.5 - 2.0mm (150≤B≤300: 1.5mm, 400≤B≤800: 2.0mm). The metal surface should be specially treated, and a soft bonding layer should be added to prevent delamination between the metal skeleton and 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 with the function of reflecting ultraviolet rays outside the main anti - corrosion layer. 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 have measures to prevent strong corrosion and strong external force. It is required that the main anti - corrosion layer, the bonding layer and the protective layer be formed by hydraulic pressure at one time. It has strong anti - corrosion ability, with a service life of up to 30 years in harsh environments of acid, alkali, salt, ammonia, etc., 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.
Tray - type cable tray
The tray - type cable tray is the most widely used one in petroleum, chemical, electric power, light industry, TV, telecommunications and other fields. It has the advantages of light weight, large load, beautiful appearance, simple structure, convenient installation, etc. It is suitable for both the installation of power cables and the laying of control cables. The surface treatment of the tray - type cable tray can be divided into three types: galvanizing, electrostatic powder coating and hot - dip galvanizing according to user needs. Special anti - corrosion treatment can be carried out in a highly corrosive environment. The tray - type cable tray can be equipped with a protective cover. If a protective cover is needed, it can be indicated when placing an order. All its accessories are universal with ladder - type and trough - type cable trays.
Ladder - type cable tray
The XQJ - T type ladder - type cable tray is improved based on relevant domestic and foreign materials and our factory's similar products. It has the advantages of light weight, low cost, unique appearance, convenient installation, good heat dissipation and ventilation. It is suitable for the laying of cables with relatively large diameters in general, especially for the laying of high - and low - voltage power cables. The ladder - type cable tray is equipped with a protective cover. If a protective cover is needed, it can be indicated when placing an order. All its accessories are universal with tray - type and trough - type cable trays. The surface treatment of the ladder - type cable tray is divided into three types: electrostatic powder coating, galvanizing and painting. Special anti - corrosion treatment is carried out in a highly corrosive environment.
Trough - type cable tray
The trough - type cable tray is a fully enclosed cable tray. It is most suitable for laying computer cables, communication cables, thermocouple cables and other control cables of high - sensitivity systems. It has good effects on shielding interference of control cables and protecting cables in a highly corrosive environment. The protective cover of the trough - type cable tray is supplied with the trough body. Other accessories are universal with ladder - type and tray - type cable trays. If users need other varieties and specifications of trough - type cable trays, they can place orders by providing drawings, letters or face - to - face negotiation.
Combined cable tray
The combined cable tray is a type of cable tray and the second-generation product in the cable tray series. It is suitable for the laying of various cables in all projects and units. It has the advantages of simple structure, flexible configuration, convenient installation, and novel style. As long as three basic types with a width of 100, 150, and 200mm are used, the combined cable tray can be assembled into the cable tray of the size you need. It can turn, widen, branch, lead up, and lead down arbitrarily according to the on-site installation needs without producing accessories such as bends and tees. At any position, there is no need to drill holes, and the pipe can be led out after welding. It is convenient for engineering design, production and transportation, and installation and construction. It is the most ideal product among cable trays at present.
Long-span cable tray
The long-span cable tray has a larger support span than ordinary cable trays. Due to its delicate structural design, it also has the characteristics of greater bearing capacity than ordinary cable trays. Therefore, it is not only suitable for the overhead laying of indoor and outdoor cables in industrial and mining enterprises such as oil refining, chemical industry, textile, machinery, metallurgy, electric power, television, and radio, but also can be used as supports in underground works, such as cable trenches and cable tunnels in subways and civil air defense projects. The long-span cable tray includes long-span ladder steps, trays, troughs, heavy-load ladder frames, right-angle tees, multi-section tees, right-angle crosses, as well as corresponding types of connectors, covers, and pillars. The long-span cable tray is equipped with covers. If you need to match the covers, please indicate when placing an order, or order according to the cover model. The surface treatment of the long-span cable tray includes plastic spraying, galvanizing, or baking paint. In a corrosive environment, the cable tray treated with plastic spraying can be selected. In a general atmospheric anti-corrosion environment, the cable tray treated with galvanizing can be selected. The scope of application of the FRP cable tray: The cable busway is suitable for the laying of power cables, control cables, lighting wiring, etc. indoors, outdoors, in chemical plants, overhead, in cable trenches, and in tunnels.
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