
What is the direct cable laying method and how is it executed?
2025-08-14Answer: The direct cable laying method is a common and cost-effective technique for installing underground electrical cables. In this method, the cable is placed directly into a trench that has been dug in the ground. The process is executed in several key steps:
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Trench Excavation: A trench of a specific width and depth is dug along the planned cable route.
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Cable Bedding: A layer of soft, fine material like sand or sifted soil is laid at the bottom of the trench to provide a protective, level bed for the cable.
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cable laying: The armored cable is carefully laid on top of the bedding.
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Backfilling and Protection: Another layer of sand is placed over the cable. A warning tape, clearly marked with "CAUTION: ELECTRICAL CABLE BELOW," is then laid to provide a visual warning for any future excavation work.
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Final Backfill: The remainder of the trench is filled with the excavated soil, and the ground surface is restored.
This method is popular because it is simple and has a high heat dissipation rate, which is crucial for a cable's performance. Our specialized underground cable laying equipment ensures that this process is executed efficiently and with minimal stress on the cable.
Here is a diagram explaining the process: