The connection of two cable trays is typically called a "splice" or is made using "end connectors" or "splice plates."

Overview

When two cable trays are joined, the process ensures structural stability, proper alignment, and secure support for cables. This connection is essential to prevent sagging, maintain load capacity, and comply with safety standards .

Common Connection Methods

1. End Connectors: These are specially designed components that fit the ends of the trays, allowing them to be bolted together securely. They come in various sizes and shapes to match different tray types, such as ladder, ventilated trough, or solid bottom trays .
2. Splice Plates: Flat metal plates that bridge the ends of two trays. They are bolted through pre-drilled holes to create a rigid joint, ensuring the trays remain aligned and can support the cable load .
3. Gaskets (Optional): In some installations, gaskets are used between trays to seal against dust or moisture, especially in outdoor or industrial environments .

Installation Considerations

• Alignment: The trays must be level and flush to prevent stress on cables. A spirit level is often used to check horizontal and vertical alignment .
• Fastening: High-strength bolts and nuts are used to secure the end connectors or splice plates. Compatibility with the tray material (steel, aluminum, or fiberglass) is important .
• Preparation: Clean the tray ends to remove debris or burrs to ensure a smooth, secure connection .

Summary

In cable tray systems, joining two trays is commonly referred to as splicing, and it is achieved using end connectors or splice plates. Proper installation ensures safety, durability, and ease of maintenance for the cable management system .