How deep must direct buried cable be placed underground (0v to 600v)?

The depth requirement for direct buried cable (0v to 600v) is typically 24 inches. This standard is in place to ensure the safety and protection of the cable from physical damage and environmental factors. Directly burying the cable at this depth minimizes the risk of accidental damage from surface activities, like digging or construction, while also reducing the likelihood of exposure to moisture, which can lead to deterioration of the insulation over time. The 24-inch minimum depth is specified in regulations and codes, making it necessary for compliance in installation practices.

Options indicating shallower depths, such as 12 inches, 18 inches, and deeper depths, like 30 inches, do not align with standard requirements for direct burial cable installations within the specified voltage range. Thus, the requirement for burying at 24 inches effectively balances safety and practicality in various environmental conditions.