What are the connecting plates of cable trays called

The plates used to connect cable tray sections are called splice plates or joint plates.Overview

In cable tray systems, splice plates (also known as joint plates) are metal connectors that join two sections of a cable tray together, ensuring a continuous and stable pathway for cables while maintaining mechanical strength and electrical continuity . They are essential for creating a reliable cable management system, especially in industrial and commercial installations.

Types of Cable Tray Plates

1. Standard Splice Plate: The most common type, used to join two straight sections of tray. It typically sits on both sides of the tray rails and is secured with bolts and nuts .
2. Coupler Plate for Fittings: Designed for bends, risers, and reducers, these plates match the shape of the fitting to ensure a seamless transition between sections .
3. Adjustable Joint Plate: Allows slight movement during installation to accommodate misalignment, providing flexibility in the field .
4. Universal Splice Kit: Includes plates and hardware compatible with multiple tray types, useful for stock management and emergency repairs .

Material and Installation Considerations

• Material Selection: Plates are usually made of steel, aluminum, or stainless steel, depending on the tray type and environmental conditions .
• Load Requirements: Heavier cable loads require stronger plates to maintain structural integrity.
• Installation: Plates come with pre-drilled holes for bolts and nuts. Proper tightening ensures mechanical stability and maintains grounding continuity .

Summary

Splice plates or joint plates are critical components in cable tray systems, providing secure connections between tray sections, supporting cable loads, and ensuring electrical continuity. Choosing the correct type and material is essential for safe and durable cable management .