... , full modularization, free maintenance GLX24 series SF6 Ring Main Unit is an estensible, SF6 insulated siwtchgear, with rated voltage of 12 ... from stainless steel of 3mm. The whole switching assebly is SF6 insulated, and free from any external influence, ensuring it great ... maintenance free. By plug-in type busbar extension,GLX24 series RMU can be of free combination and full modularization. The busbar ...