90-degree cable tray support

To install a 90-degree support for a cable tray, you need to measure, cut, form, and secure the tray using appropriate brackets and joiners to ensure a stable, code-compliant bend.Step 1: Plan and MeasureIdentify the location where the 90-degree bend is required and ensure there is enough clearance for the tray and cables ( ).Measure the tray width and mark the points for the bend. For example, use 100mm spacing for a 100mm tray ( ).Mark the slots and sides where the bend will occur to guide cutting and forming.Step 2: Cut and Form the BendUse a power cutter or bolt cutters to carefully cut the tray lip along the marked lines ( ).Gradually remove the tray wall bit by bit to allow the tray to bend without gaps.Form the tray into a 90-degree angle, ensuring the edges align flush.Step 3: Install Joiners and BracketsMeasure the tray lips and add a small allowance (e.g., 5mm) for movement ( ).Insert the tray joiner into the bent section and align it with the existing tray.Use a 90-degree surface as a guide to prop the tray in position.Secure the joiner and tray using bolts; if slots do not align, drill through and pinch down the joiner to tighten ( ).Step 4: Mount the SupportChoose the appropriate support type: cantilever wall brackets for vertical runs or trapeze hangers for ceiling suspensions ( ).Attach the support bracket to the wall or ceiling, ensuring it is level and capable of bearing the cable load.Place the bent tray section onto the support and secure it with bolts or clamps.Verify that the tray is stable and the bend maintains a smooth path for cables.Step 5: Final ChecksEnsure the tray is properly aligned and all fasteners are tight.Confirm that the installation complies with NEC Article 392 and manufacturer specifications ( ).Check that the cable fill will not exceed the maximum allowable area to prevent overheating or damage. By following these steps, you can create a secure, precise 90-degree bend in a cable tray that is safe, structurally sound, and ready for cable installation ( ).