The standard burial depth for underground power cables varies significantly depending on local regulations, the cable's voltage, and the environment. However, there are general guidelines to follow to ensure safety and prevent damage:

• Low Voltage (LV) Cables: Typically buried at a minimum depth of 600mm (24 inches) in areas with pedestrian traffic and 750mm (30 inches) in areas with vehicular traffic.

• High Voltage (HV) Cables: Require a greater depth for safety and are typically buried at a minimum of 900mm (36 inches) or more. For major infrastructure projects and very high voltages (132kV and above), depths can be even greater, often exceeding one meter. It is essential to consult local codes and project specifications for the precise required burial depth.