Why Is Long-Span Cable Tray Better ThanConventional Cable Tray?

In terms of core load-bearing performance,conventional Steel Cable trayhas weak overall bearing capacity due to limited plate thickness and structural design. General conventional trays on the market are mostly made of 1.0mm—1.5mm ordinary cold-rolled Steel Plates without stiffener reinforcement structure, resulting in insufficient overall rigidity, with a standard load of only 100–130kg/m. It is only suitable for light-load wiring scenarios such as office buildings, small shops and ordinary civil buildings. Under heavy-load working conditions such as chemical plants, power stations and large industrial factories, conventional cable trays are prone to deformation, sagging and loose joints after laying a large number of high-voltage and large-section cables, bringing great potential power safety hazards and failing to meet the long-term use requirements of heavy-duty industrial projects.

In contrast, long-span cable tray is made of thickened high-strength carbon steel, equipped with integrally stamped stiffeners and bottom load-bearing main beam structure, which greatly improves structural stability. Actual test data shows that the linear load capacity of this tray exceeds 220kg/m, with doubled single-point pressure resistance, and its deformation and tensile resistance are far better than ordinary trays. As a industrial cable trayspecially developed for heavy-load working conditions, it can stably carry a large number of heavy-duty power cables, adapt to harsh engineering scenarios such as energy bases, metallurgical plants, undergRound Pipe corridors and cross-sea infrastructure, and is the core preferred product for large overseas industrial projects.

From the perspective of overall installation cost, which is the most concerned factor of overseas projects, long-span trays have outstanding cost performance in the whole life cycle. Although the unit procurement price is slightly higher than ordinary trays, the overall project cost is significantly lower. Firstly, the super-long span design greatly reduces the consumption of auxiliary materials such as suspenders, bolts and connectors, directly cutting auxiliary procurement costs. Secondly, the number of joints is greatly reduced, effectively lowering the working hours of high-altitude splicing, commissioning and fixing, saving more than 40% of labor installation costs, which is perfectly adapted to the overseas engineering status of high labor costs and tight construction cycles. At the same time, the mainstream hot-dip galvanized cable tray version has excellent anti-corrosion performance, resisting high temperature and sandstorms in the Middle East, coastal salt fog and chemical acid-base corrosion, with a service life of more than 25 years, requiring almost no maintenance and renovation in the later stage, completely avoiding the hidden costs of frequent inspection and replacement of conventional trays.