Installation of Steel Mesh Cable Tray

Steel mesh cable trays are installed by planning the route, preparing materials, mounting supports, aligning trays, and neatly laying cables while ensuring compliance with load and safety standards.

Planning and Preparation

Before installation, review approved shop drawings to determine tray layout, lengths, and locations within the building, including electrical rooms, plant rooms, and service corridors . Inspect all received materials for damage or discrepancies and ensure they match the approved submittal. Store trays horizontally on a flat surface with timber supports at one-meter intervals, protecting them from moisture and sunlight . Select the appropriate mesh tray type based on cable quantity, load, and environmental conditions, considering corrosion protection and temperature range (-20°C to +120°C) for steel mesh trays .

Mounting Supports

Use brackets, clamps, or hangers to secure trays to walls, ceilings, or floors. Support spacing typically ranges from 1.5 to 3 meters, depending on tray type and load . Ensure supports are level and capable of handling the weight of cables and trays, including future expansion. For long runs, consider using cable tray rollers to facilitate smooth cable installation .

Tray Alignment and Connection

Align trays straight and level, connecting sections with approved fittings and connectors. Steel mesh trays allow easy creation of bends, branches, and exits due to their flexible wire mesh design . Ensure all connections are secure to prevent sagging or misalignment, which could compromise cable support and safety.

Cable Laying

Lay cables neatly within the tray, separating by voltage and function. Use cable ties or straps to organize and secure cables, leaving sufficient slack for thermal expansion or future adjustments . The open mesh design provides good ventilation, reducing heat buildup and allowing easy access for maintenance or modifications .

Compliance and Safety

Follow national and local electrical codes (e.g., NEC, CEC) and manufacturer guidelines for installation . Verify that tray load ratings are not exceeded and that proper grounding and bonding are applied. Regularly inspect installed trays for structural integrity and cable condition. By following these steps, steel mesh cable trays can be installed efficiently, providing a durable, ventilated, and accessible cable management system suitable for industrial and commercial applications .