Although cable tray in Shandong is a simple product of low-voltage distribution equipment, it has the characteristics of complete variety, wide application, light structure, low cost, and beautiful appearance. It brings convenience to technical improvement, cable expansion, maintenance and overhaul, and is widely used in projects, with a considerable amount of consumption every year.
According to the materials used to manufacture the cable tray, the cable tray is generally divided into four categories: steel cable tray, flame retardant fiberglass cable tray, corrosion resistant aluminum alloy cable tray, and fire resistant cable tray. According to the structural form of cable tray, cable tray is generally divided into five categories: trough type cable tray, tray type cable tray, ladder type cable tray, combined cable tray, and long-span cable tray. These are also the bridges that are widely used in China, mostly enclosed bridges.
The trough type cable tray is a fully enclosed cable tray, which is suitable for laying computer cables, communication cables, hot couple cables and control cables of other highly sensitive systems to shield interference and protect cables in heavily corrosive environments.
Tray type cable tray has the advantages of light weight, large load, convenient installation, etc. It is suitable for the installation of power cables and the laying of control cables. Ladder type cable tray is suitable for laying large diameter cables, especially for laying high and low voltage power cables.
The combined cable tray can be combined at will according to the actual situation of the installation site, and is suitable for occasions where the installation environment is more complex and there are more requirements for the space change of cable tray trunking.
The large span cable tray is limited by the installation site conditions, so it is not allowed to set many corbels and hangers. It is required that the bridge must have a large span of supports and hangers.
Two important indicators need to be considered when selecting cable tray: the bearing capacity of cable tray should meet the requirement that the working uniform load is less than the rated uniform load, and cable tray should be able to meet different environmental requirements and have a long service life. The bearing capacity of cable tray is met by selecting materials with appropriate thickness, and the environmental requirements and applicable life are met by selecting corresponding raw materials.
In order to improve the bearing capacity of cable tray, it is generally realized by increasing the plate thickness of the bridge; The environmental requirement is that glass fiber reinforced plastic or aluminum alloy is generally used as the main material for cable tray production in heavily corrosive environment, and steel material is generally used as the main material for cable tray production in conventional corrosive environment, while steel cable tray adopts hot dip galvanizing, hot solid powder electrostatic spraying, painting, galvanization and other surface treatment methods according to the corrosion resistance grade of the bridge. For more information, come to our website http://www.yeeones.com Consult and understand!