Isiteshi esincane sohlobo lwebhokisi i-YB-12/0.4 (isiteshi esincane esifakwe ngaphambili samandla kagesi aphezulu naphansi) iyi-switchgear enamandla kakhulu, i-transformer yokusabalalisa kanye nedivayisi yokusabalalisa i-low-voltage, ngokohlelo oluthile lwezintambo oluhlelwe kwenye yefekthri eyakhiwe ngaphakathi endlini futhi. Imishini yokusabalalisa ehlangene yangaphandle, okungukuthi, i-transformer step-down, ukusatshalaliswa kwe-voltage ephansi kanye neminye imisebenzi ehlanganiswe ndawonye. Kufakwe ebhokisini elingangenwa amanzi, lingagqwala, lingangenwa uthuli, lingangenwa amagundane, lingashi, lingantshontshi, lingangeni ukushisa, livalwe ngokugcwele, ibhokisi lensimbi eligudlukayo, elifaneleka ngokukhethekile ukwakhiwa kwenethiwekhi yasemadolobheni kanye nokuguqulwa, iyisiteshi esisha ngemva kwalokho. ukwanda kweziteshi zomphakathi. Isiteshi esincane sohlobo lwebhokisi silungele izimayini, amabhizinisi ezimboni, izinkundla zikawoyela negesi kanye neziteshi zamandla omoya, sithatha indawo yegumbi lokuqala lokusabalalisa umphakathi, isiteshi sikagesi sokusabalalisa, futhi siba isethi entsha ephelele ye-transformer kanye nemishini yokusabalalisa.
Isiteshi esincane esihlanganiswe ngaphambilini se-YB sinezici zesethi eqinile ephelele, usayizi omncane, isakhiwo esihlangene, ukusebenza okuphephile nokuthembekile, ukugcinwa okulula, nokuhamba, njll. Uma kuqhathaniswa neziteshi ezingaphansi ezivamile zomphakathi, iziteshi ezingaphansi zohlobo lwebhokisi ezinomthamo ofanayo ngokuvamile zihlanganisa indawo kuphela i-1/10 ~ 1/5 yeziteshi ezivamile, ezinciphisa kakhulu umsebenzi wokuklama kanye nenani lokwakha, futhi kunciphisa izindleko zokwakha.