SBW-Zchokhazikika cha voteji cha magawo atatu acNdi chipangizo cholumikizirana ndi voliyumu yokhazikika chomwe chimatha kusinthidwa, chomwe chimawongolera mphamvu zambiri, pamene voliyumu yochokera ku netiweki yothandizira ikusinthasintha chifukwa cha mphamvu yokwezera, imasintha voliyumu yotulutsa kuti iwonetsetse kuti zida zamagetsi zosiyanasiyana zikugwira ntchito bwino.
Chogulitsachi poyerekeza ndi mitundu ina ya chowongolera ma voltage, chili ndi mphamvu zambiri, chimagwira ntchito bwino kwambiri, sichimasinthasintha mawonekedwe a mafunde, chimathandizira kunyamula katundu wambiri, chimatha kugwira ntchito nthawi yomweyo komanso nthawi yayitali, chimasinthira pamanja/chodziyendetsa chokha, chimatha kupereka mphamvu zambiri, kusowa kwa gawo, dongosolo la gawo ndi makina zimateteza zokha. Zimasonkhanitsidwa mosavuta komanso modalirika.