An underground electrical distribution system is a network of interconnected components that safely and efficiently delivers power from a substation to end-users. The key components include:

• underground Cables: The core of the system, these are specialized cables with a conductor, insulation, and a protective outer sheath designed to resist moisture and mechanical damage.

• Conduit and Manholes: In a "draw-in" system, rigid conduits are laid in trenches to create a protective pathway for the cables. Manholes and vaults are strategically placed at junctions and bends to provide access for installation and maintenance.

• Transformers and Switchgear: These are typically installed in pad-mounted or submersible enclosures. They are essential for stepping down voltage and protecting the system from faults.

• Cable Accessories: Specialized products like terminators and splices provide sealed, insulated connections where cables meet equipment or are joined together.