Kurinda birenze urugero ni ikintu kiri muri sisitemu y'amashanyarazi birinda kwangirika cyangwa kunanirwa biterwa no gutembera cyane. Mubisanzwe bikora mu guhagarika amashanyarazi mugihe arenze urwego rwumutekano, haba kuvuza fuse cyangwa gutembera kumena umuzunguruko. Ibi bifasha gukumira ubushyuhe bwinshi, umuriro, cyangwa kwangirika kubice bya elegitoroniki bishobora guturuka ku rugendo rukabije. Kurinda birenze urugero ni igipimo cyingenzi cyumutekano mubishushanyo mbonera byamashanyarazi kandi bikunze kuboneka mubikoresho nka switchboards, abo muzunguruka bavunagura.
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