Iingenelo eziphambili ze-ANSI Bushings

I. Iintlobo eziphambili kunye neemeko zokusetyenziswa
Iibhasi ze-ANSI zingahlulwa zibe ziintlobo ezintathu ngokusekelwe kwimisebenzi yazo kunye nezakhiwo zazo, zihambelana ngokuchanekileyo neemfuno eziqhelekileyo zegridi yamandla eMntla Melika:
1. I-ANSI post-type ceramic bushing (I-ANSI Post-Type Ceramic Bushing)
 Ukusetyenziswa: Inkxaso yebhasi yesitishi esingaphantsi, ukufakelwa komgca ophumayo wetransformer, ukubekwa kwebhasi yebhasi ye-voltage ephezulu kwiikhabhathi zokusasaza;
 Iimpawu: Zifakwe ngokuthe nkqo, kunye neeflanges ezisemgangathweni ze-ANSI phezulu (ezifana neeflanges ezinemingxuma emi-4/6, kunye nesithuba semingxuma ngokuhambelana ne-ANSI B16.5), kunye neeterminals zoqhagamshelo ezantsi ezihambelana neebhasi ezixande eziqhelekileyo okanye izihlanganisi zekhebula eMntla Melika;
 Iimeko eziqhelekileyo: ii-transformer ze-10kV/35kV kwiigridi zamandla zasezidolophini zaseMntla Melika, inkxaso yebhasi ye-GIS yangaphandle (iGas Insulated Switchgear).
2. I-ANSI Wall-Penetration Ceramic Bushing egqobhoza eludongeni (i-ANSI Wall-Penetration Ceramic Bushing)
 Ukusetyenziswa: Imigca ye-voltage ephezulu edlula kwiindonga zesakhiwo, iikhabhathi zesinyithi (ezifana namagumbi okuhambisa, iindawo zokusebenzela zefektri);
 Iimpawu: Inxalenye ephakathi yindawo egqobhoza udonga (ubude obulungiselelwe ngokwesixa sodonga, ngokuhambelana nokunyamezela ubude be-ANSI C37.34), zombini iziphelo zine-flanges ezingangeni manzi ukuthintela ukungena komphunga wamanzi kumacala omabini odonga;
 Iimeko eziqhelekileyo: Iintambo ze-138kV eziphezulu ze-voltage ezidlula eludongeni kwizakhiwo zoshishino, ii-bushings ze-line ezingenayo ze-10kV kwizakhiwo zorhwebo.
3. I-ANSI transformer ceramic bushing (i-ANSI Transformer Ceramic Bushing)
 Ukusetyenziswa: Ukuqhagamshelwa kweentambo ezijikelezayo zeetransformer ezintywilisiweyo kwioyile kunye neetransformer zohlobo olomileyo kwigridi yamandla yangaphandle;
 Iimpawu: Isakhiwo sokulinganisa i-capacitive voltage esakhelwe ngaphakathi ngokwemigangatho ye-ANSI (ukunciphisa uxinzelelo lwangaphakathi lwentsimi yombane), iiterminal zonxibelelwano ezineevalvu zokunciphisa uxinzelelo (ezikhulula ngokuzenzekelayo uxinzelelo xa kukho iimpazamo), ziyahambelana noyilo "oluphezulu" okanye "olungaphandle" olusetyenziswa rhoqo kwiitransformer zaseMntla Melika;
 Iimeko eziqhelekileyo: ii-transformers ze-500kV eziphezulu kakhulu kwigridi yamandla eMntla Melika, ii-transformers zebhokisi ezingama-35kV kwiifama zomoya.
II. Iingenelo eziphambili ze-ANSI Bushings
1. Ukutshintshana okusemgangathweni: Ubukhulu kunye neendawo zokunxibelelana zihambelana ngokupheleleyo nemigangatho ye-ANSI, zivumela ukutshintshwa ngokuthe ngqo kweendlela ezifanayo zokubeka izinto kwizixhobo ezikhoyo kwimarike yaseMntla Melika, nto leyo enciphisa iindleko zokuhlaziya;
2. Ukuthembeka okungqongqo: Ngokusebenzisa "uvavanyo olupheleleyo" ngokweemfuno ze-ANSI (ezifana novavanyo lokungcangcazela koomatshini oluyi-1000, uvavanyo lokujikeleza kobushushu), ubomi bunokufikelela kwiminyaka engaphezu kwama-30, ukuhlangabezana neemfuno "zolondolozo oluphantsi" lwegridi yamandla yaseMntla Melika;
3. Ukuguquguquka kwiimeko ezininzi: Igubungela onke amanqanaba ombane ukusuka kukusasazwa kombane ophantsi ukuya kuthumelo lombane ophezulu kakhulu, kuthathelwa ingqalelo iindawo eziqhelekileyo zaseMntla Melika ezifana nongcoliseko olukhulu lwangaphandle, amaqondo obushushu aphezulu angaphakathi, kunye nenkungu yetyuwa elunxwemeni;
4. Isiqinisekiso sokuthobela imithetho: Sithobela isiqinisekiso se-UL saseMntla Melika (ii-Underwriters Laboratories), isiqinisekiso se-CSA (i-Canadian Standards Association), esivumela ukungena ngokuthe ngqo kwimarike yaseMntla Melika ukuze kuthengiswe.
III. Isishwankathelo
Ii-bushings ze-ANSI ziziphumo zokuhlanganiswa okunzulu "kweenzuzo zezinto ze-ceramic" kunye "nenkqubo esemgangathweni yaseMntla Melika". Azinazo nje kuphela iimpawu zokugquma, ukumelana nemozulu, kunye nokuchasana nokugqwala kwee-bushings ze-ceramic, kodwa kwakhona ngoyilo oluqhelekileyo lwemigangatho ye-ANSI, zisombulula iindawo "zokuhambelana" kunye "nokuthembeka" kweeprojekthi eziwela umda. Zisisombululo esikhethwayo sezinto zokugquma ezine-voltage ephezulu kwigridi yamandla yaseMntla Melika nakwiiprojekthi zaphesheya kweelwandle zamashishini aseMntla Melika. Nokuba zizitishi ezintsha okanye ukuhlaziywa kweegridi zamandla ezindala, ii-bushings ze-ANSI ceramic zinokuqinisekisa ukusebenza okuzinzileyo kwexesha elide kwenkqubo yamandla ngokusebenza okuqhelekileyo.