Agasanduku k'ubwoko busimburwa nabwo bwitwa ubwoko bwiburayi-agasanduku k'ubwoko.Igicuruzwa gihuye na GB17467-1998 “Umuvuduko mwinshi kandi mutoya wateguwe na Substation” na IEC1330 nibindi bipimo.Nubwoko bushya bwamashanyarazi nogukwirakwiza, bufite ibyiza byinshi kurwego rusanzwe rwabaturage.Bitewe nubunini bwacyo, ibirenge bito, imiterere yoroheje, hamwe no kwimuka byoroshye, bigabanya cyane igihe nubuso bwubatswe bwibikorwa remezo, kandi bikanagabanya ibiciro byibikorwa remezo.Muri icyo gihe, isanduku yubwoko bwisanduku iroroshye kuyishyira kurubuga, gutanga amashanyarazi birihuta, gufata ibikoresho biroroshye, kandi ntihakenewe abakozi badasanzwe kuba mukazi.By'umwihariko, irashobora kwinjira cyane mu kigo gishinzwe imizigo, ifite akamaro kanini mu kuzamura ireme ry’amashanyarazi, kugabanya igihombo cy’amashanyarazi, kongera ubwizerwe bw’amashanyarazi, no kongera guhitamo imiyoboro ikwirakwiza amashanyarazi.ngombwa.Isanduku ihindura isanduku irangiza guhindura, gukwirakwiza, kohereza, gupima, indishyi, kugenzura sisitemu, kurinda no gutumanaho ibikorwa byingufu zamashanyarazi.
Gusimburanya bigizwe nibice bine: kabili-nini yo guhinduranya kabine, gukwirakwiza amashanyarazi make, gukwirakwiza transfert na shell.Umuvuduko mwinshi ni umuyaga uhindura ikirere, kandi transformateur ni ubwoko bwumye bwumye cyangwa transformateur yamavuta.Isanduku yumubiri ifata ubushyuhe bwiza nubushyuhe bwo guhumeka, hamwe nuburanga bwiza nuburyo bwiza bwo kubika ubushyuhe, kandi agasanduku k'isanduku gafite imiyoboro ihumeka yo guhumeka hejuru no hepfo.Igikoresho kigenzurwa nubushyuhe bwo guhumeka hamwe nigikoresho cyogukoresha ubushyuhe bwizuba bigomba gushyirwaho mumasanduku.Buri gice cyigenga gifite ibikoresho byuzuye byo kugenzura, kurinda, kwerekana ubuzima no kumurika.
1. Uzuza impinduka, gukwirakwiza, kohereza, gupima, indishyi, kugenzura sisitemu, kurinda no gutumanaho ibikorwa byingufu zamashanyarazi.
2. Banza ushyire ibikoresho byibanze nayisumbuye mubimukanwa, bifunze byuzuye, bigenzurwa nubushyuhe, birwanya ruswa hamwe nubushuhe butarinda ubushuhe, kandi bigomba gushyirwaho gusa kuri sima ya sima iyo igeze kurubuga.Ifite ibiranga ishoramari rito, igihe gito cyo kubaka, umwanya muto, hamwe no guhuza ibidukikije byoroshye.