The direct laying method is a popular and cost-effective way to install armored cables. The best practices include:

1. Trench Preparation: Dig a trench of an appropriate depth, typically a minimum of 450mm, or deeper in areas with potential for disturbance (e.g., 600mm for roads). Ensure the trench is free of rocks, sharp objects, and debris.

2. Cable Bedding: Lay a 100mm layer of fine sand at the bottom of the trench to provide a soft bed for the cable and protect its outer sheath from moisture and stones.

3. cable laying: Carefully lay the armored cable along the trench. For multiple cables, maintain a specific spacing to prevent mutual heating and ensure efficient heat dissipation. Use specialized underground-Cable-Laying-Equipment-and-Tools.html target='_blank'>cable rollers and cable pulling equipment to ensure a smooth, damage-free installation.

4. Covering and Protection: Cover the cable with another 100mm layer of fine sand. Then, place electrical warning tape above the sand to alert future excavators of the cable's presence. Finally, backfill the trench with soil, ensuring it is gently compacted.