In a cable installation system, fittings function not only as accessories but also as guides, connectors, and adapters for the cable route according to technical requirements in the field. Choosing the right fitting is crucial to ensure the cable system is safe, efficient, and neat.
Here is a complete guide to the types of fittings commonly used on FRP Cable Trays and Cable Ladders:
Types of Fittings and Their Functions:
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90° Horizontal Elbow
- Used to change the cable route direction to the right or left horizontally.
- Ideal for adjusting the cable route to room corners or building turns.
- Available for both cable trays and cable ladders. -
90° Inside Vertical Elbow
- Functions to direct cables vertically from bottom to top.
- Commonly used when the cable route rises from the floor to the ceiling or to an upper floor. -
90° Outside Vertical Elbow
- Used to bend cables vertically from top to bottom.
- Commonly used for dropping cable routes from the ceiling to the floor or to a lower panel. -
Horizontal Equal Tee
- Splits one main cable route into two horizontal directions, forming a “T” shape.
- Used when cables need to be directed to two different locations from one distribution point. -
Right Hand Side Reducer
- Functions to reduce the tray or ladder width from large to small towards the right.
- Used when the cable load decreases, eliminating the need for a large tray along the entire route. -
Left Hand Side Reducer
- Same as the right reducer, but the size change occurs to the left.
- Facilitates tray or ladder width adjustment according to the cable route design.
Difference Between Cable Tray and Cable Ladder
Cable Tray:
- Used for light to medium applications.
- Generally used in office buildings, commercial facilities, and indoor spaces.
- Provides better protection against dust and light contaminants.
- Suitable for small to medium cable routes.
Cable Ladder:
- Designed to carry heavier loads with open ventilation.
- Ideal for industrial areas, factories, or outdoor use.
- Allows better air circulation and heat dissipation from high-voltage or large-diameter cables.
- Suitable for large cable routes or a large number of cables.
Tips for Choosing the Right Fitting
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Define the cable route from the start, including turns, branches, and elevation differences.
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Use elbows for turns, tees for branching, and reducers when tray/ladder sizes change.
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Choose trays for light cable needs, and ladders for heavy cables or industrial installations.
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Ensure each fitting matches the size and type of the main tray/ladder.
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Use FRP (Fiberglass Reinforced Plastic) material for resistance to corrosion, weather, and harsh chemical environments.
If you are still unsure about which fitting best suits your project, consult with a technical team that understands product specifications and installation conditions. Choosing the right fitting will affect the system’s efficiency and ease of maintenance in the future.