Solid insulation ring main unit

The utility model relates to a solid insulation ring main unit. An insulation wiring mechanism is arranged on the upper top surface in a cabinet body; a supporting plate is installed in the middle of the interior of the cabinet body and located below the insulated wiring mechanism. A supporting plate is vertically mounted on the lower bottom surface of the interior of the cabinet body and is positioned below the supporting plate; the right side wall of the vacuum arc-extinguishing chamber is provided with an isolation switch chamber in a butt joint manner. The upper end face of the vacuum arc-extinguishing chamber is provided with an upper outgoing line sleeve in a spaced manner. A limiting table is arranged on the upper surface of the vacuum arc-extinguishing chamber and sleeved on the upper wire outlet sleeve; the lower bottom surface of the vacuum arc-extinguishing chamber is provided with lower outgoing line sleeves at intervals in a leading-in manner. A vertical plate is arranged on the lower bottom surf