Cable tray corner splicing

Cable tray corners are spliced using specialized splice plates or adjustable fittings to ensure secure, stable, and code-compliant connections.Key Considerations for Corner SplicingSafety and Stability: Proper corner splicing prevents sagging, loose joints, and potential electrical hazards. Strong connections maintain system stability under full cable load and ensure long-term durability ( ).Compliance: Follow local electrical codes and manufacturer guidelines. Many systems require bonding jumpers for electrical continuity when using adjustable or offset splices ( ).Types of Corner SplicesL, T, or Cross-Shaped Plates: Used to join tray sections at angles or junctions. These plates are bolted to the tray ends to create a secure corner connection ( ).Flexible Horizontal Adjustable Splice Plates: Allow horizontal direction changes when standard fittings do not fit. These splices come in pairs with hardware included and require supports within 24 inches on both sides ( ).Adjustable Splices (Snap Track or Similar Systems): Enable offset changes in vertical or horizontal directions. They can also serve as thermal expansion splices, reducing the need for additional parts ( ).Installation StepsPreparation: Determine the desired corner angle and mark the tray for cutting if necessary. Remove any rungs that interfere with the splice ( ).Cutting: Use a metal cutting tool or machine to trim the tray ends to fit the corner configuration ( ).Positioning: Align the splice plate or adjustable fitting with the tray ends. Ensure proper overlap and alignment for structural integrity ( ).Fastening: Bolt the splice plate securely using standard fasteners (spanners or torque wrenches). For adjustable splices, follow manufacturer instructions for securing hardware ( ).Bonding: Install bonding jumpers if required to maintain electrical continuity ( ).Support: Ensure supports are installed within the recommended distance (typically 24 inches) from the splice to prevent sagging ( ).Tools RequiredWrenches or spannersTorque wrench (for precise tightening)Metal cutting machine or sawDrill (if additional holes are needed for splice plates) ( )Best PracticesVerify alignment and angle before final tightening.Use manufacturer-specified hardware to maintain UL or NEMA compliance.Check for proper grounding and bonding to prevent electrical hazards.Ensure the system allows for future maintenance and cable additions without disassembly ( ).By following these steps and using the appropriate splice plates or adjustable fittings, cable tray corners can be installed securely, safely, and in compliance with industry standards.