
What are the best practices for installing underground cable ducting to ensure long-term reliability?
2025-08-14-
Professional Answer: The reliability of underground cable systems depends heavily on the quality of the ducting installation. Best practices include:
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Proper trench preparation: Ensuring a stable, level base free of sharp rocks.
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Use of high-quality ducting: Selecting materials like HDPE or PVC with appropriate compression strength for the application (e.g., Twinwall HDPE for areas under roads).
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Correct sizing: Ensuring the duct is adequately sized for the cable and future expansion.
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Watertight joints: Sealing all joints and ends to prevent water ingress.
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Draw ropes and spacers: Using draw ropes to facilitate cable installation and spacers to maintain correct separation in multi-duct banks.
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Color coding: Following local or national standards for color-coded ducting to identify the service type (e.g., power, telecom) and prevent accidental damage during future excavations.
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Our range of underground cable laying equipment, from duct rods to cable drum trailers, is designed to support these best practices, ensuring a robust and durable installation.