Intambo exhunywe ngaphambili isetshenziselwa ukuxhuma ukufakwa kwekhondatha yamandla angaphezulu kanye netheminali yekhebula engaphezulu yamandla, ukumiswa kanye nokuhlanganyelwa. Intambo exhunywe ngaphambili yavela okokuqala e-United States ngeminyaka yawo-1940s kanye nawo-1950. Umkhiqizo wangempela wawuvikela izintambo ezivunguzayo endaweni yokugxilisa ingqondo yocingo olungenalutho kanye nesimo sokugqwala kukagesi nokushiswa kwe-arc. Ngemuva kweminyaka yokuthuthuka, ukufakwa kwezintambo ezisontekile ngaphambili sekusetshenziswe kabanzi ekudluliselweni nasekusabalaliseni amandla, ukuxhumana kwe-fiber optical, ujantshi osebenza ngogesi, i-cable TV, ukwakhiwa, ezolimo kanye neminye imikhakha.
I-steel core aluminium wire isetshenziswa kabanzi kunethiwekhi yokusabalalisa engu-10 kV yocingo olujwayelekile, inochungechunge lwezinzuzo zamandla aqinile, ukusebenza kahle kokuvikela umbani, izindleko eziphansi, isetshenziswa kabanzi ezindaweni ezixhumene namadolobha kanye nezintambo zikagesi zasemaphandleni. . Kodwa-ke, uma ulayini womqhubi wensimbi we-aluminium core wonakaliswa amandla angaphandle noma isimo sezulu esibi, kulula ukuba nephutha lesifunda esifushane. Lapho kwenzeka isifunda esifushane esixubile, ucingo luzophulwa. Uma isimo esinjalo sitholakala, ukwelashwa okufanele kokulungiswa kwezintambo kufanele kunikezwe ngesikhathi ukuze kugwenywe ukuqhubeka kwezintambo ezixekethile eziholela ekunciphiseni izakhiwo zemishini kanye nogesi zocingo.
I-Prestranded wire iwumkhiqizo wenombolo eyodwa yocingo oluzungezayo oluxhunywe ngaphambili. Ngokuvumelana nosayizi wesigaba esiphambanayo socingo, intambo ye-helix enobubanzi obucacisiwe bangaphakathi izungezwa eduze nesiqondiso se-helix ukuze yenze i-tubular cavity. Intambo eboshwe ngaphambili igoqekile esongwe ngolwelwesi olungaphandle lwentambo. Ngaphansi kwesenzo se-wire tension, i-spiral iyazungeza ukuze yakhe amandla okubamba ucingo. Lapho i-tension yocingo iba nkulu, yilapho i-spiral iqina futhi namandla okubambelela aba mkhulu. Intambo yangaphambili yokulungisa isetshenziswa kakhulu emigqeni engu-35 kV nangaphezulu, kodwa isetshenziswa kancane emigqeni engu-10 kV, futhi ingasetshenziswa kuphela engxenyeni yolayini eno-7% noma ngaphansi kwentambo ephukile futhi ububanzi bokulimala abukhulu, futhi ayikwazi ukufinyelela umphumela wokuqinisa. Ibha yokuxhuma izintambo ezisontelwe ngaphambili iwuhlobo olusha lwemikhiqizo yezintambo ezisontelwe ngaphambili eminyakeni yakamuva. Isetshenziswa njengohlobo lwethuluzi lokuxhuma. Ingasetshenziswa esikhundleni sepayipi elivamile lokuxhuma i-clamp pressure kanye nepayipi lokucindezela, ingasetshenziswa ukuxhuma i-aluminium stranded wire, i-aluminium alloy stranded wire, i-steel core aluminium stranded wire nezinye izintambo, ukuze kuzuzwe amandla ayo okuqala omshini nokusebenza kukagesi.
Isikhathi sokuthumela: Dec-07-2022