Final answer:
According to NFPA 70 or the NEC, direct buried cables must comply with certain requirements such as burial depth, protection, and use of proper insulation. These regulations ensure safety and protect from electrical hazards. Installers must consult the latest NFPA 70 standards.
Step-by-step explanation:
According to NFPA 70, which is often referred to as the National Electric Code (NEC), direct buried cables must meet specific requirements related to their installation.
These requirements include sufficient depth of burial, protection against damage, and the use of appropriate insulation and jacketing materials to withstand environmental factors such as moisture and soil acidity.
The precise burial depth and protective measures can vary based on factors like the type of cable, the voltage, local building codes, and whether the cable is run under a building or under a road.
It is important for electrical installations to comply with NFPA 70 because it is designed to ensure safety and prevent electrical fires and other hazards associated with improper cable installation.
Failure to adhere to these regulations can lead to dangerous situations, as well as legal and financial consequences. Professionals and installers must reference the latest edition of the NFPA 70 for the most current standards and practices related to direct buried cable installation.