Mu nganda zikora amamodoka zihoraho, icyifuzo cya sisitemu y'amashanyarazi ikora neza kandi yizewe nticyigeze kikaba gikomeye. Kimwe mubice byamenyekanye cyane mumashanyarazi yimodoka ni busbar yoroshye. Igisubizo gishya cyagenewe gutanga uburyo bwizewe bwo guhuza amashanyarazi mugihe utanga inyungu nyinshi kuruta ubucuruzi.