1, before installing, you need to check the appearance of the stainless steel cable tray, see if the surface is smooth and smooth, do not paint off, and see whether the welding between the steel is firm or not.
2, the installation of cable tray to determine the specific location, at the same time, each layer must be left between the distance, can guarantee the normal cooling and maintenance at the same time, if there are other parallel pipeline, to ensure that the provisions of the distance, to avoid mutual interference.
3, cable bridge construction, must make sure the direction, each device should be convenient maintenance, so as to avoid failure, can not repair, cause greater harm.
4, the installation of the bridge, whether it is fixed or suspended, must be optimistic about the connection between the various components, is not tight, can not be loose phenomenon, to ensure safety in construction.
The material of the cable tray is another common problem in the design of the cable tray. According to the material division, the cable tray mainly has several kinds of steel, glass fiber reinforced plastic and aluminium alloy. Glass fiber reinforced plastic cable bridge is characterized by its light weight and only 1/4 of carbon steel. It has good water resistance and corrosion resistance. It is suitable for chemical plants. Not easy to burn, flame retardant oxygen index = type glass steel cable tray 32. The service life is long, the general design life is 20 years, but the price is 3 times of the steel cable tray.
The superiority of the construction is convenient cutting and flexible assembly, installation without fire, the chemical explosion hazardous environment and engineering significance of plant engineering construction period is especially important, because in the explosion hazardous environment, fire engineering installation of chemical plant must be discontinued, the economic benefit will be affected. Aluminum alloy cable tray weight is very light, due to the different proportion of aluminum and steel (Al=2.7, Fe=7.86), according to weight calculation, the ratio of aluminum steel is about 1:3.
The size and load characteristics of aluminum alloy cable bridge are almost the same as those of steel bridge. As far as cost is concerned, the cost of aluminum alloy bridge is 20% higher than that of galvanized steel cable bridge, and the service life is more than 5 times of that of steel cable tray.
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