Fabrication of Fiberglass Cable Tray Diameter Reduction

Fiberglass cable tray diameter reduction is achieved using straight or mitered reducer fittings that transition from a larger to a smaller tray size while maintaining load capacity and cable support.

Types of Reducers

Fiberglass cable tray systems offer several reducer options to accommodate changes in tray width or diameter: Straight Reducers: These are standard fittings that gradually reduce the tray width in a linear fashion, allowing smooth cable transitions between different tray sizes. Left or Right Reducers: Some systems provide directional reducers to accommodate specific routing requirements. Mitered Reducers: These are angled fittings that can reduce tray width while maintaining structural integrity and proper cable support.

Standard Sizes and Compatibility

Fiberglass cable trays come in a variety of standard widths and heights, which determine the appropriate reducer size: Widths: Common widths include 50, 100, 150, 200, 300, 400, 500, and 600 mm, with other sizes available on request. Heights: Standard heights are typically 50 mm and 80 mm, with custom heights available for specific loading requirements. Lengths: Straight sections are usually available in 3000 mm and 6000 mm lengths.

Reducers are selected based on the starting and ending tray widths, ensuring that the cable fill capacity and structural support are maintained.

Installation Considerations

When installing a fiberglass cable tray reducer: Ensure the reducer is compatible with the tray material (FRP, polyester, or vinylester resin) to maintain corrosion resistance and strength. Maintain proper alignment to avoid cable stress or sagging. Use manufacturer-recommended fasteners and supports to secure the reducer and adjoining trays.

Consider the bend radius of cables to prevent damage during the transition.

Advantages of Using Fiberglass Reducers

Corrosion Resistance: FRP reducers maintain the non-corrosive properties of the tray system. Lightweight and Strong: Pultruded fiberglass provides high strength-to-weight ratio, making installation easier and safer. Design Flexibility: Multiple reducer types allow for horizontal, vertical, and directional transitions in complex cable routing.

By selecting the correct reducer type and size, fiberglass cable tray systems can efficiently accommodate changes in diameter or width while ensuring safe and reliable cable support.