What are the national standards for each type of cable tray?

As a supporting project of wiring engineering, the cable tray lacks the versatility of many manufacturers' specifications and products, therefore, the design and selection process should be based on the type, quantity, and reasonable selection of the applicable tray according to the weak current system. According to the on-site environment and technical requirements, tray type, ceremonial type, stepped type, glass anti-corrosion immovable cable tray or steel ordinary cable tray can be selected. In the environment or outdoor places that are prone to dust accumulation and other things that need to be shaded, it is advisable to add covering.

In public passageways or outdoor crossings of road sections, the bottom chamber of the ground floor rungs are padded or pallets are used in the section. When the large span spans the public passage, the load capacity of the bridge can be increased according to the user's requirements or the row frame can be selected. The installation of the cable tray and the laying of cables in the tray shall be constructed in accordance with the approved design documents.

Trays (slots) or ladder frames supported by supports, hangers, brackets....

There is no national standard, which needs to be determined according to the material, type and specification of the bridge.

For common types of trays, please refer to: the data in the National Standard Design Atlas 04D701-3 "Cable Tray Installation".

The minimum thickness of the cold-rolled steel plate of the commonly used steel bridge is2mm five gears, including: width 150mm plate thickness, width >> 800mm plate thickness

You can refer to the standard of China Construction Engineering Standardization Association: "Code for Engineering Design of Steel Cable Tray" CECS

Page 9 Table.

Based on the engineering design code of steel cable tray CECS31 91, it was revised by the Electrical Engineering Committee of China Engineering Construction Standardization Association.

Cable tray width The minimum allowable plate thickness.

Cable tray width 100 1

100 cable tray width 150

150 cable tray width 400

400 Cable tray width 800 2

The type of cable tray depends mainly on the composition of the cable to be laid and the environment in which it is used. Here are some commonly used types of cable trays in the market for reference:

Trough cable tray: A trough cable tray is a completely sealed cable tray that is shaped like a box and is used to lay cables.

Ladder cable tray: the whole is stepped shaped, the center is welded with crossbar steel support, light weight, low cost, strong bearing capacity and good air permeability.

Tray cable tray: A tray tray is a semi-sealed cable tray that is very similar to a trough cable tray. There are heat dissipation holes at the bottom.

Based on the engineering design code of steel cable tray CECS31 91, it was revised by the Electrical Engineering Committee of China Engineering Construction Standardization Association.

National standard thickness of cable tray.

The width of the cable tray <100 and the standard thickness needs to be up to 1mm

100 "Cable Tray Width< 150 The standard thickness needs to be reached.

150 "Cable tray width< 400 standard thickness needs to be reached.

400 >> Cable Tray Width<800 Standard thickness needs to be up to 2mm

800 "Cable Tray Width< 1200 Standard thickness is required.

At present, there is no special specification guidance, and the specifications of each manufacturer lack universality.

1. The cable tray is divided into trough type, tray type, ladder type, grid type and other structures, which are composed of brackets, brackets and installation accessories. The bridge frame in the building can be erected independently, and can also be attached to various buildings (structures) and pipe gallery supports, which should reflect the characteristics of simple structure, beautiful appearance, flexible configuration and convenient maintenance, and all parts need to be galvanized, and installed in the open air bridge outside the building.

2. The full name of the rigid structural system with closely connected support cables composed of straight sections, bending, tee, and quad components, supporting arms (arm brackets), hangers, etc., which are composed of trough, tray or cascade straight sections, bends, tees, and crosses, as well as brackets (arm brackets), hangers, etc. When the bridge continues to be recognized by the market and accept the localization of the cable tray industry, the product is made of high-quality cold-rolled steel plate, which has received widespread attention The product is made of high-quality cold-rolled steel plate, and the surface process has cold galvanizing, hot-dip galvanizing, electrostatic spraying, fireproof coating, baking paint, etc.

3. Tray cable tray is the most widely used in petroleum, chemical industry, light industry, telecommunications, etc. It has the advantages of light weight, large load, beautiful shape, simple structure and easy installation. It is suitable for the installation of power cables and the laying of control cables.

4. The combined cable tray is a new type of cable tray, which is the second generation of the cable tray series. It is suitable for the laying of various projects, various units and various cables, and it has the characteristics of simple structure, flexible configuration, convenient installation and novel form.

Cable trays are divided into: trough trays, ladder trays, and tray trays.

The following are some cable tray specifications: 100x50, 150x100, 200x100, 200x150, 300x100, 300x150, 300x200, 400x100, etc.

The type of cable tray mainly depends on the weight of the cable and the use environment and other factors, and the following provides us with some commonly used cable tray types on the market as a reference:

Trough cable tray: A trough cable tray is a hermetically sealed cable tray, box-like shape, used to lay cables.

Ladder cable tray: It looks like a ladder shape together, and the center is welded with a crossbar to reinforce the support, which makes it light weight, low cost, extremely strong bearing capacity and good air permeability.

Tray cable tray: Traybed cable tray is a semi-sealed cable tray, which is very similar to the posture of trough cable tray, and it has a hole in the bottom for heat dissipation.

The following is a guide to the commonly used standards in the market

The standard is suitable for: trough tray (C), ladder tray (T), tray tray (P) (special standards can be customized by contact).

Thickness: non-standard) national standard).

Usually the models of cable tray are divided into: trough type, tray type, ladder type. The different materials of the cable tray are divided into: galvanized tray, stainless steel 304 tray, aluminum alloy 1060 tray, and the surface treatment process is divided into: fireproof baking paint, electrostatic spraying, and hot-dip galvanizing (hot-dip galvanizing).

Common specifications are: (width * height * thickness is: national standard thickness).

300mm*100mm*

400mm*100mm*

500mm*100mm*

600mm*200mm*

800mm*200mm*

1000mm*150mm*

1200mm*200mm*

Usually the models of cable tray are divided into: trough type, tray type, ladder type. The different materials of the cable tray are divided into: galvanized tray, stainless steel 304 tray, aluminum alloy 1060 tray, and the surface treatment process is divided into: fireproof baking paint, electrostatic spraying, and hot-dip galvanizing (hot-dip galvanizing).

Common specifications are: (width * height * thickness is: national standard thickness) 300mm*100mm* 400mm*100mm* 500mm*100mm* 600mm*200mm* 800mm*200mm* 1000mm*150mm* 1200mm*200mm* and so on.

What are the styles and types of trays referred to by the tray model, such as trough, ladder, grid and so on.

Tray specifications refer to the dimensions of the tray, such as the width, height, length, and thickness of the tray.

Tray models are divided into trough tray, ladder tray, tray tray tray and mesh tray.

The specifications of different types of trays are different, 1. The specifications of trough trays and tray trays are as follows:

The specification style is width * height, and the unit is mm

2. The common specifications of ladder bridge are as follows:

The specification style is width * height, and the unit is mm

3. The common specifications of the grid tray are as follows:

The specification style is width * height, and the unit is mm

Hello, usually the models of cable tray are divided into: trough type, tray type, ladder type.

The different materials of the cable tray are divided into: galvanized tray, stainless steel 304 tray, aluminum alloy 1060 tray.

The surface treatment process is divided into: fireproof baking paint, electrostatic spraying, hot-dip galvanizing (hot-dip galvanizing) Common specifications are: (width * height * thickness is: national standard thickness).

300mm*100mm*

400mm*100mm*

500mm*100mm*

600mm*200mm*

800mm*200mm*

1000mm*150mm*

1200mm*200mm*

The size of the general specifications of the cable tray is determined according to the construction site.

The thickness of the cable tray is:

The models of cable tray are: trough type, ladder type, tray type.

The materials of the cable tray are: galvanized, aluminum alloy, stainless steel.

The processes of cable tray are: hot-dip galvanizing, fireproof, spraying.

The commonly used specifications of cable tray are: