Uma ukhetha izintambo nezintambo, ukuchaza ngokucacile izidingo nokugxila kukhwalithi kanye nokucaciswa kuyisihluthulelo sokuqinisekisa ukuphepha nokuqina. Okokuqala, uhlobo olufanele lwekhebula kufanele lukhethwe ngokusekelwe esimweni sokusetshenziswa. Isibonelo, izintambo zasendlini ngokuvamile zisebenzisa izintambo ezivalekile ze-PVC (Polyvinyl Chloride), kuyilapho izindawo zezimboni, ezingase zibe ngaphansi kwezimo ezinzima, ngokuvamile zidinga izintambo ezikwazi ukumelana nokushisa nokugqwala, njengalezo ezinezimo ezicindezelayo.I-XLPE (I-Cross-Linked Polyethylene)ukwahlukanisa. Ukuze zisetshenziswe ngaphandle, izintambo ezine-Aluminium Foil Mylar Tape njengezinto ezivikelayo zikhethwa ukuthuthukisa ukumelana nesimo sezulu nokusebenza okungangeni kwamanzi. Ukwengeza, kubalulekile ukubala umthamo wamanje wokulayisha bese ukhetha ukucaciswa kwekhebula elifanele ngokusekelwe esilinganisweni samandla sezinto zikagesi, ukuqinisekisa ukuthi okokusebenza kwekhondatha, njengethusi elingenawo umoya-mpilo noma ithusi elithayiwe, kunokuhamba okwanele ukuvimbela ukushisa ngokweqile noma ukungasebenzi ngenxa yokugcwala kakhulu.
Mayelana nekhwalithi yomkhiqizo, kuyatuseka ukukhetha izintambo ezigunyazwe izinhlangano ezifana ne-CCC ne-ISO 9001, eziqinisekisa ukuthi ziyahlangabezana nezindinganiso zekhwalithi zikazwelonke. Ngaphezu kwalokho, izintambo zekhwalithi ephezulu kufanele zibe nokubukeka okubushelelezi, okuyindilinga nombala ofanayo. Isendlalelo se-insulation kufanele singabi namabhamuza noma ukungcola futhi sibe nogqinsi olungaguquki. Ngokuqondene nempahla ye-conductor, ama-conductor ethusi kufanele abe bomvu-nsomi, abe nobuso obucwebezelayo nemicu esonteke ngokuqinile, kuyilapho abaqhubi be-aluminium kufanele babe mhlophe-siliva. Uma amakhondaktha ethusi ebonakala ensomi-mnyama noma equkethe ukungcola, angase enziwe ngezinto ezisezingeni eliphansi, ngakho-ke kufanele kuqashelwe.
Lapho ukhetha ukucaciswa kwekhebula, indawo ye-conductor cross-sectional kufanele icatshangelwe ngokuphathelene nomthwalo wamanje kanye nendawo yokusebenza. I-conductor cross-section enkulu ivumela umthamo wokuthwala wamanje ophezulu kodwa inyusa izindleko. Ngakho-ke, ukulinganisa kokubili umnotho nokuphepha kubalulekile. Ukwengeza, inani lama-cores kufanele likhethwe ngokuvumelana nezidingo zangempela: izifunda zesigaba esisodwa ngokuvamile zisebenzisa izintambo ezimbili noma ezintathu eziyinhloko, kuyilapho izifunda zezigaba ezintathu zidinga izintambo ezintathu noma ezine-core. Ngokuhlola kahle isimo sokusetshenziswa kanye nezidingo zobuchwepheshe, izintambo ezikhethiwe zizobiza futhi zikwazi ukusebenza okuthembekile isikhathi eside.
Okwezimo ezikhethekile, ezifana nezindawo ezishisa kakhulu, izintambo ezikwazi ukumelana nokushisa okuphezulu, njengezintambo ezingashii-mica tapeukugoqa noma izintambo ze-XLPE ezifakwe ngaphakathi, zingagcina ukusebenza okuzinzile ezithandweni zezimboni noma ama-workshops asezingeni eliphezulu. Emabhilidini aphakeme kanye nezindawo zomphakathi lapho ukuphepha komlilo kubaluleke kakhulu, izintambo ezikwazi ukumelana nomlilo, ezikwazi ukumelana nomlilo, noma izintambo ezingenayo i-halogen ezingavimbeli ilangabi ziyizinketho eziphephile. Lawa makhebuli ngokuvamile afaka izendlalelo ezikhethekile ezikwazi ukumelana nomlilo noma zihlanganisa amateyipu okuvimbela amanzi ukuze kuncishiswe ingozi yokusabalala komlilo nokuthuthukisa ukuphepha.
Okokugcina, ukukhetha umkhiqizo onedumela elihle nomphakeli onokwethenjelwa kubalulekile. Imikhiqizo eyaziwayo ngokuvamile inezinqubo zokukhiqiza eziqinile kanye nokulawula ikhwalithi, iqinisekisa ukusebenza okungcono futhi ihlinzeka ngesevisi ephelele yangemva kokuthengisa. Ukuthenga eziteshini ezisemthethweni, njengezimakethe ezinkulu zezinto zokwakha noma abasabalalisi abaqinisekisiwe, akuqinisekisi nje kuphela ubuqiniso bemikhiqizo kodwa futhi kuqinisekisa ukusekela okufika ngesikhathi uma kuba nezinkinga. Kutuswa ukugwema ukuthenga emithonjeni engaqinisekisiwe ukuze uvimbele ukuthenga imikhiqizo yomgunyathi noma engekho ezingeni.
Ukukhetha izintambo nezintambo kuyinqubo ehlelekile edinga ukunakwa ngokucophelela esigabeni ngasinye, kusukela ezidingweni zesimo nokusebenza kwezinto ezibonakalayo kuya kukhwalithi yomkhiqizo nesithunzi somphakeli. Ukukhetha okufanele akuqinisekisi ukuphepha kuphela kodwa futhi kuthuthukisa kakhulu impilo yesevisi nokusebenza kahle kwemikhiqizo.
Isikhathi sokuthumela: Jan-17-2025