02-June-2021 || By: Admin
One of the main reasons to make a decision when planning a cable tray system for corrosive or open air conditions is that the material.
Design and Installation Of Cable Trays :
Aluminum cable tray systems can normally be shipped from the factory during a short period of your time . Small orders can ship in only a couple of days, counting on the manufacturer’s work-load. Hot-dip galvanized cable tray systems regularly require a few days to manufacture, hot dip galvanize, and steel oneself against definite shipment.
All cable tray manufacturers must ship their cable trays to a 3rd party to possess them galvanized. This needs the cable tray to be manufactured, packed and delivered to the galvanizer. Some manufacturers return the fabric to their plants after galvanizing to examine and deburr the merchandise before packing and final shipment. Other manufacturers believe the hot-dip galvanizer to examine , deburr, and pack the fabric for shipment. The cost of a delay in getting material to the jobsite is repeatedly the value of the fabric itself and using an aluminum cable tray helps to attenuate the chance of delays.
Hot-dip galvanized steel cable tray covers pose another problem. Placing thin gauge steel covers during a hot zinc bath will often cause the covers to warp. To avoid this problem, thicker material is employed and therefore the covers are limited to 6 feet long. The extra material and therefore the extra labor required to put in shorter covers features a significant impact on the value of the whole cable tray system.
Performance Of Aluminium And Galvanized Cable Tray:
Aluminum cable tray has excellent corrosion resistance in many chemical environments and has been used for over thirty years in petro-chemical plants and paper mills .The aluminum alloy used by
Galvanizing on steel cable trays is meant to slowly wear away because it protects the steel; anywhere where the coating is thin or has been removed can prematurely limit the product’s service life. Since aluminum cable trays are homogenous material throughout, their service life is unaffected by scratches and field modifications. When aluminum cable trays are used with chrome steel hardware, the system can perform indefinitely, with little or no degradation over time, making it ideal for several chemical and marine environments.
Aluminum’s many advantageous features like its corrosion resistance, superior strength-to-weight ratio, simple field modification, fast delivery and availability, and labor saving installation all add up to a system well worth the extra 10% to fifteen in initial price. Recently, the relative cost of aluminum to steel has been decreasing, making the selection between aluminum and steel no contest.