Njengengxenye ewumgogodla yesistimu kagesi yezimoto, izintambo zebhethri zenza umsebenzi obalulekile wokuxhuma ibhethri nezinto zikagesi zemoto. Ukukhethwa kwayo kwezinto ezibonakalayo kuthinta ngokuqondile ukuthembeka kwemoto, ukuphepha, nempilo yesevisi. Ngakho-ke, ukukhethwa kwezinto zokuhlanganisa izintambo zebhethri kudinga ukucatshangelwa okuphelele kwezinto eziningi, okuhlanganisa ukuguquguquka, ukumelana nezinga lokushisa, ukumelana nokugqwala, namandla okusebenza.
Okokuqala, -ikhopha ehlanzekile ye-electrolytic ephezulu noma ithusi ethayiwe ngokuvamile isetshenziswa njengekhondatha ngenxa yokuguquguquka kwayo okuhle kakhulu nokuvumelana nezimo, okunciphisa ngempumelelo ukumelana nogesi nokulahlekelwa amandla. I-Tinning iphinde ithuthukise ukumelana ne-oxidation, inwebe impilo yesevisi yamahhanisi ezindaweni ezinokhahlo. Emithwalweni ephezulu{{3}yamanje, njengamasekhethi emoto eqalayo, amakhondatha ekhopha anezigaba eziwugqinsi-ayadingeka ukuze kuqinisekiswe ukudluliswa kwamandla okuzinzile.
Okwesibili, ungqimba lwe-insulation ngokuvamile lwenziwa-ngezinga lokushisa eliphezulu, uwoyela-ukumelana, kanye nobudala-nge-polyvinyl chloride engazweli (PVC) noma{3}}i-polyethylene exhumene (XLPE). I-PVC ibiza kancane-futhi kulula ukuyicubungula, okuyenza ifanelekele izindawo ezijwayelekile. I-XLPE, ngakolunye uhlangothi, igcina izici ezinhle kakhulu zokuhlukanisa ngisho nasezindaweni{7}}zezinga lokushisa eliphezulu, okuyenza ifaneleke{8}}ezindaweni zokushisa eziphezulu njengendawo yenjini. Ngaphezu kwalokho, amanye amamodeli aphakeme{10}angase akhethe ama-fluoroplastic (afana ne-FEP) ukuze amelane nokugqwala kwamakhemikhali okwedlulele kanye{11}}nezimo zezinga lokushisa eliphezulu.
Impahla ye-sheath kumele ingahuzuki-, imelane ne-UV-ikwazi ukumelana ne-UV, futhi ingavimbeli ilangabi-. Izinketho ezivamile zihlanganisa inayiloni (PA) noma i-thermoplastic elastomer (TPE), eyangaphambili enikeza amandla aphezulu okusebenza futhi lokhu okulandelayo kuhlinzeka ngokuguquguquka okuhle kakhulu kanye nobungane bemvelo. Ezimotweni zentengiso noma ezingekho{5}emgwaqeni, ukumelana kwezintambo zokudonsa izintambo nokudlidliza kanye nokugqwala kwamanzi anodaka kufanele kucatshangelwe, kusetshenziswa uhlaka olukabili{6}}lokuvikela uma kudingeka.
Kafushane, ukukhethwa kwempahla yamahhanisi ezintambo zebhethri kufanele kusekelwe esimweni sohlelo oluthile, ukulinganisa ukusebenza kanye nezindleko zokuqinisekisa ukusebenza okuphephile nokuthembekile kohlelo lukagesi.