Use splice plates and nuts/bolts to join cable tray sections end-to-end, ensuring proper alignment and secure fastening.

Step 1: Plan and Align

Begin by tracing a straight line along the path where the cable trays will be installed. Using a laser level is recommended to ensure the line is perfectly straight on the ceiling or wall before drilling any holes . Proper alignment prevents the trays from appearing misaligned or “snaking” along the installation path.

Step 2: Install Supports

Decide on the type of support based on the installation location:

• Wall Mounts: Use cantilever arms that extend from the wall to hold the tray .
• Ceiling Mounts: Use trapeze hangers, which consist of metal rods and a flat bar to suspend the tray . Ensure fasteners are appropriate for the building material—metal anchors for concrete or special clamps for steel structures .

Step 3: Connect Tray Sections

The most common method for straight-line connections is using splice plates:

• Place a flat metal splice plate with pre-drilled holes at the ends of two tray sections .
• Secure the plate with nuts and bolts, tightening them to the proper torque to prevent loosening due to vibration .
• Ensure the trays are aligned straight before fully tightening the bolts . Alternative methods include quick connect systems, which snap, slide, or twist together with minimal tools, offering faster installation but often limited to a single manufacturer's brand .

Step 4: Final Checks

• Verify that all tray sections are level and aligned .
• Use cable tray rollers for long runs to lay cables smoothly and avoid kinks .
• Ensure proper grounding and bonding across all metal trays for safety .
• Label and document the installation for future maintenance . By following these steps, you can achieve a secure, straight, and reliable cable tray installation suitable for industrial or commercial applications .