The ring main unit for the
electric power system comprises a ring main unit box body and a supporting seat located below the ring main unit box body, a lifting frame is installed on the upper end face of the supporting seat in a height-adjustable mode, the upper end of the lifting frame is connected with the ring main unit box body through multiple sets of connecting column assemblies, and the height of the ring main unit box body is adjusted by adjusting the height of the lifting frame; connecting assemblies are arranged on the upper end faces of the supporting seats, and every two adjacent
ring network box bodies are spliced into a whole through the connecting assemblies on the supporting seats below the
ring network box bodies. The lifting frame is arranged on the supporting seat in a height-adjustable mode, the connecting column
assembly arranged on the lifting frame is connected with the
ring network box body, the defect that adjustment and disassembly and
assembly are inconvenient due to a traditional screw connecting structure is overcome, the connecting
assembly is arranged on the supporting seat, two adjacent ring network box bodies are rapidly and reliably spliced and used, and therefore the ring network box body connecting structure is simple in structure, convenient to use and high in practicability. The connecting structure is novel in structure, reasonable in design, convenient and rapid to assemble and disassemble, high in efficiency and low in cost, and a rapid and reasonable connecting structure is provided for disassembly, assembly and position adjustment of the looped network box body.