Our Professional Answer: At Ningbo Changshi, we understand that the choice of underground cable laying method depends on the project's specific needs, environment, and budget. The two primary methods are trenching and trenchless installation.

• Trenching (Direct Burial): This traditional method involves excavating a trench, laying cables in a protective sand bed, and then backfilling. It is cost-effective and straightforward for open areas. Essential equipment includes trenchers, underground-Cable-Laying-Equipment-and-Tools.html target='_blank'>cable rollers, and specialized cable pullers to ensure the cable is laid without exceeding its minimum bending radius or pulling tension.

• Trenchless Installation (Horizontal Directional Drilling - HDD): This method is ideal for urban areas, crossing roads, or sensitive environments where surface disruption must be minimal. It involves boring a pilot hole and then pulling the cable through a protective duct. This requires specialized HDD equipment, including drilling rigs and reamers, as well as high-strength cable pulling ropes and Swivels to handle the high tensions involved in long pulls.

Our company manufactures and exports a full range of equipment and tools for both methods, providing comprehensive solutions for any project.