Intshayelelo yemveliso:

Xa umgca wesebe oqhagamshelwe kwi-T we-12kV umgca wokusabalalisa ngaphezulu kwentloko okanye impazamo yangaphakathi yomsebenzisi wokugqibela kwenzeka, ukutshintshwa okuphumayo kwesikhululo esincinci kuya kukhubeka xa umda wexesha lokukhusela umgca ongenayo kunye nomda wokukhusela umgca ophumayo wokutshintshwa kwesikhululo esincinci awukwazi ukulungiswa ngokufanelekileyo. Ukuba ubume besiphoso busisigxina, ukuvalwa kwesikhululo sombane akuyi kuphumelela, kwaye ingozi yendawo ngaphakathi kumda womsebenzisi wevoltage ephakathi iya kubangela ukuba wonke umgca wokuhambisa i-12kV uphelelwe ngamandla. Ukuba i-outdoor demarcation circuit breaker ifakwe kwi-T junction okanye ekupheleni komsebenzisi (indawo yokumisela uxanduva), kunqunywe ukuba iphoso (i-overcurrent, i-short circuit, i-single-phase grounding, njl. Abasebenzisi kwiindawo ezingenaziphene basebenzisa umbane ngokuqhelekileyo. Ukusetyenziswa kwe-ZW32-12F yangaphandle ye-high-voltage ekrelekrele yokucanda i-vacuum breaker circuit breaker (i-watchdog) kumgca we-12kV feeder overhead line inokuthintela ukusilela okudibeneyo kombane odibeneyo womgca ongenaziphene, ukunciphisa ububanzi bokuhamba kombane, ukunciphisa ixesha lokucima umbane womsebenzisi, kunye nokukhusela ukhuseleko lombane oyintloko oqhutywe. Kwaye inomsebenzi wokufumanisa impazamo, ulawulo lokukhusela kunye nonxibelelwano, olunokuqonda ukususwa ngokuzenzekelayo kwesiphambeko somhlaba wesigaba esisodwa kunye nokuhlukaniswa ngokuzenzekelayo kwesigaba-kwisigaba sesiphambeko esifutshane. Indawo yofakelo isetyenziswa kwindawo yokucanda uxanduva phakathi komgca ongenayo womsebenzisi we-12kV wokuhambisa umbane, kwaye inokusetyenziswa kwakhona kuqhagamshelo lomgca wesebe ohlangabezana neemfuno.

Iimeko eziqhelekileyo zokusetyenziswa:
Ubushushu be-Ambient: hayi ngaphezulu kwe +40ºC, hayi ngaphantsi kwe-15ºC;
Umswakama ohambelana nomoya: umyinge wemihla ngemihla awukho ngaphezu kwe-95%, kwaye umyinge wenyanga awukho ngaphezu kwe-90%;
Ukuphakama akudluli kwi-1000 yeemitha;
Ubunzulu benyikima abukho ngaphezu kwe-8;
Indawo engenamlilo, ugqabhuko-dubulo, ungcoliseko olukhulu, ukonakala kweekhemikhali kunye nokungcangcazela okukhulu.

uMzobo weMveliso: