Cable tray angles can be aligned using adjustable fittings, elbow joints, or by modifying start/end elevations for sloping trays, ensuring proper orientation and compliance with standards.

Using Adjustable or Elbow Fittings

To change the direction of a cable tray, elbow joints or adjustable corner pieces are commonly used. For horizontal or vertical changes:

• Elbow joints can rotate the tray from -90° to +90° and are attached using the included screw set, allowing precise directional changes .
• Adjustable corner pieces (SRS) can be inserted into the tray and adjusted within a range of 0–75°, providing flexibility for non-standard angles .

Aligning Sloping Cable Trays

When a cable tray needs to follow a sloped ceiling or framing, the alignment can be achieved by:

1. Editing the Start or End Elevation of the tray to match the slope.
2. Using the align option in design software like Revit to adjust the tray precisely along the sloped element .

Installation Best Practices

• Ensure all components are manufactured and installed according to standards such as BS EN 61537 for cable trays and BS 6946 for channel supports .
• Use competent personnel familiar with electrical installation practices to avoid misalignment or unsafe installations .
• Support elements like wall brackets, suspended supports, or center suspensions should be positioned to maintain the correct angle and prevent sagging .
• Consider mechanical loads, environmental factors, and cable weight when determining the angle and support spacing .

Summary

Aligning cable tray angles involves a combination of mechanical fittings (elbows, adjustable corners), elevation adjustments for slopes, and adherence to installation standards. Proper alignment ensures safe cable routing, prevents mechanical stress on cables, and maintains system reliability.