How to connect a 185 cable tray T-connection

To connect a 185 cable tray at a T-junction, use a T-shaped fitting or splice plates with appropriate fasteners, ensuring alignment, grounding, and secure bolting for stability.

Step-by-Step Instructions

1. Prepare the Tray Sections

• Measure and mark the points where the main tray and branch tray will intersect.
• Cut the tray sections if necessary using a cable tray cutter to ensure a clean fit . 2. Select the Appropriate T-Connection Fitting
• Use a T-shaped tray fitting designed for your tray type and size.
• Alternatively, for custom setups, you can use L, T, or cross-shaped splice plates to join the trays at the junction . 3. Align the Trays
• Position the main tray and the branch tray so that the ends meet the T-fitting evenly.
• Ensure the trays are level and properly aligned to prevent sagging or misalignment under load . 4. Secure the Connection
• Attach the T-fitting or splice plates using bolts, nuts, and washers.
• Tighten fasteners with a spanner or torque wrench to ensure a firm hold .
• For adjustable connectors or couplers, follow the manufacturer's instructions to lock the trays in place . 5. Reinforce the Junction
• Use corner strength bars or additional support brackets if the junction will carry heavy cable loads .
• Check that the trays are stable and do not move when pressure is applied. 6. Grounding and Safety
• Ensure the cable tray system is properly grounded according to NEC Article 392 or local electrical codes .
• Verify that all metal parts are electrically continuous and that grounding conductors are connected. 7. Final Inspection
• Confirm that all bolts are tight, the trays are level, and the junction is secure.
• Make sure there is enough clearance for cables to be installed without obstruction. Following these steps ensures a safe, durable, and code-compliant T-connection for your 185 cable tray system, allowing for proper cable routing and long-term stability .