Our Professional Answer: Safety and efficiency are paramount for successful underground cable projects. Based on global best practices, we advise the following:

1. Thorough Planning: Before any work begins, a detailed survey of the route is essential to locate existing underground utilities. This prevents accidental damage and ensures compliance with regulations.

2. Proper Trench Design: Trenches must be dug to the correct depth and width, as dictated by local standards and the cable's voltage. This ensures the cable is protected from physical damage and has adequate spacing for heat dissipation.

3. Use of Correct Equipment: Employing the right tools is critical. This includes using cable rollers to minimize friction and prevent damage to the cable's insulation, and Cable Pulling Winches with dynamometers to monitor and control pulling tension.

4. Backfilling and Protection: After laying, the cable should be surrounded by a protective layer of sand or fine soil before backfilling. Additionally, placing warning tape above the cable serves as a crucial visual alert for future excavation work.

By adhering to these practices and utilizing high-quality, reliable equipment, our clients can ensure the long-term reliability and safety of their underground electrical infrastructure.