I. Iingcamango eziSiseko zeeBhokisi zoSasazo
Ibhokisi yokusasaza sisixhobo esiphambili kwinkqubo yamandla esetyenziselwa ukusasazwa kwamandla ombane okuphakathi, ulawulo lweesekethe kunye nokukhusela izixhobo zombane. Isasaza amandla ombane avela kwimithombo yamandla (njengee-transformers) ukuya kwizixhobo ezahlukeneyo zombane kwaye idibanisa imisebenzi yokukhusela efana nokugqithisa, i-short circuit kunye nokuvuza.

Iindlela eziphambili zokusetyenziswa:

Ukusasazwa nokulawulwa kwamandla ombane (njengombane wokukhanyisa nezixhobo zombane).

Ukhuseleko lwesekethe (umthwalo omninzi, isekethe emfutshane, ukuvuza).

Jonga imeko yesekethe (i-voltage kunye nomboniso wangoku).

Ii. Uhlu lweeBhokisi zoSasazo
Ngokweemeko zesicelo:

Ibhokisi yokuhambisa izinto zasekhaya: Incinci ngobukhulu, inenqanaba eliphantsi lokhuseleko, idibanisa ukhuseleko lokuvuza, iiswitshi zomoya, njl.

Ibhokisi yokusasazwa kwemizi-mveliso: Umthamo omkhulu, inqanaba eliphezulu lokhuseleko (IP54 okanye ngaphezulu), exhasa ulawulo lwesekethe oluntsonkothileyo.

Ibhokisi yokusasaza yangaphandle: Ayingeni manzi kwaye ayingeni uthuli (IP65 okanye ngaphezulu), ifanelekile kwiindawo ezivulekileyo.

Ngendlela yokufaka:

Uhlobo lofakelo oluveziweyo: Luqiniswe ngqo eludongeni, kulula ukuyifaka.

Uhlobo olufihliweyo: Ifakwe eludongeni, iyathandeka ngobuhle kodwa ulwakhiwo lwayo luyinkimbinkimbi.

Ngokwemo yolwakhiwo:

Uhlobo oluzinzileyo: Izixhobo zifakelwa ngendlela ezinzileyo, ngexabiso eliphantsi.

Uhlobo lwedrowa (ibhokisi yokusasazwa kwemodyuli): Uyilo lwemodyuli, olulungele ukugcinwa nokwandiswa.

Iii. Ulwakhiwo lweebhokisi zokusasazwa
Umzimba webhokisi:

Izinto ezisetyenzisiweyo: Isinyithi (ipleyiti yesinyithi eqengqelekayo ebandayo, intsimbi engatyiwayo) okanye engeyosinyithi (iplastiki yobunjineli).

Inqanaba lokhuseleko: Iikhowudi ze-IP (ezifana ne-IP30, i-IP65) zibonisa amandla okumelana nothuli kunye namanzi.

Izixhobo zombane zangaphakathi:

Iziphuli zesekethe: Ukhuseleko lomthwalo omninzi/olufutshane (ezifana nezitshintshi zomoya, iziphuli zesekethe ezibunjiweyo).

Isixhumi: Sika umbane ngesandla.

Isixhobo sokukhusela ukuvuza (RCD): Sibona ukuvuza komsinga kunye nokuhamba.

Imitha yombane: Ukulinganisa amandla ombane.

Isixhobo soqhagamshelwano: Silawula ukude ukuvulwa nokuvalwa kwesekethe.

Isithinteli sokunyuka kwamandla (i-SPD): Sikhusela ekubetheni imibane okanye umbane ogqithisileyo.

Izixhobo ezincedisayo:

Iibhasi (iibhasi zekopolo okanye zealuminiyam), iibhloko zesiphelo, izibane zesikhombisi, iifeni zokupholisa, njl.njl.

Iiparameter zobugcisa zebhokisi yokusasazwa
Umlinganiselo wamandla: njenge-63A, 100A, 250A, ekufuneka ikhethwe ngokusekelwe kumandla apheleleyo omthwalo.

I-voltage elinganisiweyo: Ngokwesiqhelo yi-220V (isigaba esinye) okanye i-380V (isigaba esithathu).

Udidi lokhuseleko (IP): olufana ne-IP30 (engangeni luthuli), i-IP65 (engangeni manzi).

Ukunyamezelana kwesekethe emfutshane: Ixesha lokumelana nomsinga wesekethe emfutshane (njenge-10kA/1s).

Umthamo wokuqhekeza: Umbane wempazamo ophezulu onokunqunyulwa yi-circuit breaker ngokukhuselekileyo.

V. Isikhokelo sokukhetha iibhokisi zokuhambisa
Ngokwendlela yohlobo lomthwalo:

Isekethe yokukhanyisa: Khetha i-10-16A miniature circuit breaker (MCB).

Izixhobo zeMoto: Iireyi zobushushu okanye ii-circuit breakers ezithile zeMoto kufuneka zihambelane.

Iindawo ezinobuthathaka obuphezulu (ezifana namagumbi okuhlambela): Kufuneka kufakwe isixhobo sokukhusela ukuvuza (30mA).

Ukubalwa komthamo

Itotali yamandla ombane yi ≤ yamandla ombane alinganisiweyo kwibhokisi yokusasazwa × 0.8 (umda wokhuseleko).

Umzekelo, amandla omthwalo iyonke yi-20kW (isigaba sesithathu), kwaye amandla ombane amalunga ne-30A. Kucetyiswa ukuba ukhethe ibhokisi yokusasaza ye-50A.

Ukulungelelaniswa kwendalo

Indawo efumileyo: Khetha ibhokisi yentsimbi engagqwaliyo + umgangatho wokhuseleko ophezulu (IP65).

Indawo enobushushu obuphezulu: Kufuneka imingxunya okanye iifeni zokusasaza ubushushu.

Iimfuno ezongeziweyo:

Gcina i-20% yendawo engenanto ukuze kube lula ukongezwa kweesekethe ezintsha kamva.

Vi. Amanyathelo okukhusela ukufakwa kunye nokugcinwa
Iimfuno zokufakelwa:

Indawo yomile kwaye inomoya ococekileyo, kude nezinto ezinokutsha.

Ibhokisi isekelwe ngokuqinileyo ukuze kuthintelwe umngcipheko wokuvuza kombane.

Iinkcukacha zombala wentambo (ucingo oluphilayo olubomvu/otyheli/oluhlaza, ucingo olungathathi cala oluluhlaza okwesibhakabhaka, ucingo oluphantsi olutyheli oluluhlaza).

Amanqaku aphambili olondolozo:

Jonga rhoqo ukuba iingcingo zikhululekile okanye zixinene.

Coca uthuli (ukuze uphephe imijikelo emifutshane).

Vavanya isixhobo sokukhusela (njengokucofa iqhosha lokuvavanya ukhuseleko lokuvuza kanye ngenyanga).

Vii. Iingxaki Eziqhelekileyo Nezisombululo
Ukukhubeka rhoqo

Isizathu: Umthwalo omninzi, i-short circuit okanye ukuvuza.

Ukusombulula iingxaki: Nqamula umgca womthwalo ngomgca uze ufumane isekethe enengxaki.

Ukukhubeka kwesixhobo sokukhusela ukuvuza

Okunokwenzeka: Ukwambathisa okonakeleyo kwesekethe, ukuvuza kombane kwizixhobo.

Unyango: Sebenzisa i-megohmmeter ukuvavanya ukumelana nobushushu.

Ibhokisi ishushu kakhulu.

Isizathu: Ukuthwala umthwalo omninzi okanye ukudibana okungalunganga.

Isisombululo: Nciphisa umthwalo okanye uqinise iibhloko zesiphelo.

Viii. Imithetho yoKhuseleko
Kufuneka ihambelane nemigangatho yesizwe (efana ne-GB 7251.1-2013 “Iindibano zeSwitchgear ezisebenza ngombane ophantsi”).

Xa kufakwa kwaye kugcinwa, umbane kufuneka ucinywe kwaye umsebenzi kufuneka wenziwe ngoochwephesha bombane.

Akuvumelekanga ukutshintsha iisekethe zangaphakathi ngokuthanda okanye ukususa izixhobo zokukhusela.