Installation Method of Right Angle Cable Tray Support

Right-angle cable trays are installed by carefully planning the route, cutting and joining trays to form 90-degree bends, securing them to supports, and ensuring proper grounding and alignment.

Planning and Preparation

Before installation, plan the tray route considering clearance, load capacity, and cable separation requirements. Identify locations for bends, tees, or elevation changes, and mark support points at standard intervals, typically 1.5 to 3 meters depending on tray type and load . Ensure the workspace is clear of obstructions and that all materials and tools, including drills, brackets, couplers, and grounding straps, are ready .

Cutting and Preparing Right-Angle Sections

Measure the required length for the 90-degree turn and cut the tray using a hacksaw or angle grinder. Deburr all edges to prevent damage to cable insulation . For pre-fabricated right-angle fittings, verify dimensions and alignment with the main tray sections.

Mounting Supports

Right-angle trays can be mounted using wall brackets (cantilever) or ceiling suspension (trapeze or C-hanger). Drill holes at marked support points, insert anchors, and attach brackets or threaded rods. Ensure all supports are level and aligned to prevent sagging or misalignment at the bend .

Joining and Securing Trays

Attach the right-angle tray section to the main tray using splice plates or couplers, ensuring a tight fit. Secure each section to the supports with hold-down clips or bolts. Check that the bend maintains a smooth path for cables without sharp angles that could damage insulation .

Cable Laying and Organization

Lay cables neatly within the tray, using cable ties or straps to organize by type and voltage. Leave slack for expansion or future adjustments. Ensure that cables do not exceed the tray fill ratio, typically 50% .

Grounding and Bonding

Metal trays must be properly grounded. Use bonding jumpers across tray sections, including the right-angle fittings, to maintain electrical continuity and comply with safety standards .

Final Checks

Inspect the installation for alignment, secure mounting, and proper cable support. Verify that all trays, including right-angle sections, are level, free of sharp edges, and correctly bonded. Label cables and document the layout for future maintenance . By following these steps, right-angle cable trays can be installed safely, efficiently, and in compliance with electrical codes, ensuring long-term reliability and ease of maintenance.