Mubice bya sisitemu y'amashanyarazi menshi, 220 kV yumye bwoko bwumye GIS (Gas Insulated Switchgear) terminal igaragara nkigice cyingenzi. Iyi itumanaho irangwa n'ibikorwa remezo by'amashanyarazi bigezweho, gutanga uburyo bwizewe kandi bwiza bwo guhuza no guhagarika amashanyarazi. Amazina "ubwoko bwumye" yerekana ko izo terefone zidashingiye kumavuta cyangwa amazi