Fit(XGN86)-12 SF6 ring main unit use SF6 as the insulating medium, a fully insulated and fully enclosed ring main unit. All high-voltage charged parts are fully insulated and sealed. From the outside of the switch cabinet, the safety performance is higher, with compact structure, small size, maintenance-free, not affected by high altitude, pollution, small animals and chemical substances and other external environment. Strong insulation performance and arc extinguishing ability, with reliable structure and excellent performance. Also known as SF6 inflatable cabinet, C-GIS and so on.