Ikhebula elixhumene lifushane lekhebula elixhumene ne-polyethylene (XL-PE) elifakwe i-insulation. Izintambo ezixhumene ne-Crosslinked zifanelekela izintambo zokudlulisa nokusabalalisa ezine-voltage yamandla e-ac efinyelela ku-500KV. Njengamanje, iningi lezintambo ezine-voltage ephezulu lifakwe i-insulation nge-polyethylene exhunywe ne-Crosslinked.
Izintambo ezixhumene ngokuvamile zibhekisela ezintanjeni ezifakwe izinto ezixhumene. Izinto ezisetshenziswa kakhulu yi-polyethylene exhumene (XLPE). Inqubo yokuxhumanisa ukwenza isakhiwo sama-molecule esiqondile se-polyethylene (PE) ngendlela ethile yokucubungula ukwakha isimo sesakhiwo somugqa ohlanganisiwe we-polyethylene. Ngenxa yalokho, izinga lokushisa lokusebenza elivunyelwe isikhathi eside liphakanyiswa kusuka ku-70℃ kuya ku-90℃ (noma ngaphezulu), kanti izinga lokushisa elivunyelwe le-short-circuit liphakanyiswa kusuka ku-140℃ kuya ku-250℃ (noma ngaphezulu), okuthuthukisa kakhulu ukusebenza kwangempela ngaphansi kwesisekelo sokugcina ukusebenza kwayo okuhle kakhulu kagesi.
Kunezinzuzo eziningana ze-XLPE. I-Wenchang inikeza izinhlobo eziningi ze-XLPE ozikhethele zona.
Njenge-UL3265, UL3266, UL3167, UL3173, UL3182, UL3194, UL3195, UL3196, UL3199, UL3236 njll.
(1) Izakhiwo ezinhle kakhulu zemishini nezomzimba, ukumelana okuhle nokuqhekeka kokucindezeleka kwemvelo, ukumelana okuhle kokuguguleka, okungaphezu kwe-PVC ne-PE okungamelana nokucindezeleka okugxilile kwemishini.
(2) Ayimelani nezinyibilikisi zamakhemikhali ezahlukahlukene, izinzile ezindaweni ezahlukahlukene ezigqwalisayo ezizungezile.
(3) Ububanzi bangaphandle bentambo efakwe i-polyolefin ehlanganisiwe efakwe i-radiation buncane kunobentambo efakwe i-polyvinyl chloride enesigaba esifanayo sokucaciswa, okunganciphisa ububanzi bepayipi elisetshenziswa ekwakhiweni kwentambo yepayipi, noma kugqoke izintambo eziningi ngaphansi kwesimo esifanayo sobubanzi bepayipi, ngaleyo ndlela kuncishiswe izindleko zokufakwa kokwakhiwa.
(4) Umkhiqizo wentambo ye-polyolefin ehlanganiswe ngemisebe ehlanganisiwe ulula kakhulu kunomkhiqizo wentambo ye-PVC efakwe ngemisebe, okulula kakhulu ukufakwa nokuthuthwa, okunciphisa ukuqina kwabasebenzi kanye nezindleko zokuhamba.
(5) Izinga lokushisa eliphakeme kakhulu lentambo ehlanganisiwe efakwe imisebe engangenisi umswakama lingafinyelela ku-125℃ ngesikhathi sokusebenza isikhathi eside, futhi amandla okuthwala makhulu kunentambo ehlanganisiwe ye-PVC.
(6) Ayikhiphi amagesi agqwalisayo noma amagesi anobuthi ngesikhathi sokusha, futhi ngeke ibangele umonakalo wesibili. Luhlobo olusha lomkhiqizo wokuvikela imvelo ohambisana nezidingo zokuphepha komlilo zesimanje.
(7) Ukusebenza kahle kukagesi, ukumelana nokushisa kuphakeme kakhulu kunekhebula le-PVC, futhi ukulahlekelwa okuphakathi I-angle tangent incane kakhulu, ngokuyisisekelo ayishintshi ngokushintsha kwezinga lokushisa.
Isikhathi sokuthunyelwe: Julayi-15-2020