Ekwakhekeni kwesakhiwo esishaukumelana nomliloizintambo,I-polyethylene ehlanganisiwe (XLPE) ifakwe ngaphakathiizintambo zisetshenziswa kabanzi. Zibonisa ukusebenza kahle kukagesi, izakhiwo zemishini, nokuqina kwemvelo. Iphawuleka ngamazinga okushisa aphezulu okusebenza, amandla amakhulu okudlulisa, ukubeka okungakhawulelwe, nokufakwa nokugcinwa okulungile, kumelela indlela yokuthuthuka yamakhebuli amasha.
1. I-Cable Conductor Design
Isakhiwo kanye Nezimpawu Zekhondatha: Isakhiwo sikakhondatha samukela uhlobo lwesibili olumise okwe fan lwesakhiwo sekhondatha esihlangene, sisebenzisa (1+6+12+18+24) isakhiwo esinemicu evamile. Ku-stranding evamile, ungqimba oluphakathi luqukethe ucingo olulodwa, ungqimba lwesibili lunezintambo eziyisithupha, futhi izingqimba eziseduze ezilandelayo zihluka ngezintambo eziyisithupha. Isendlalelo esingaphandle siboshelwe kwesokunxele, kuyilapho ezinye izingqimba eziseduze ziboshelwe kolunye uhlangothi. Izintambo ziyindilinga futhi zinobubanzi obulinganayo, ziqinisekisa ukuzinza kulesi sakhiwo sokubopha. Ukwakheka okuhlangene: Ngokuhlangana, indawo yekhondatha iba bushelelezi, igwema ukugxilisana kwezinkambu zikagesi. Ngesikhathi esifanayo, ivimbela izinto ze-semi-conductive ukuthi zingangeni kunkambo yocingo ngesikhathi sokufakwa kwe-extrusion, ukuvimbela ngokuphumelelayo ukungena komswakama nokuqinisekisa izinga elithile lokuguquguquka. Ama-conductor ane-stranded anokuguquguquka okuhle, ukwethembeka, namandla aphezulu.
2. I-Cable Insulation LayerIdizayini
Iqhaza lesendlalelo se-insulation ukuqinisekisa ukusebenza kukagesi wekhebula nokuvimbela ukugeleza kwamandla eduze kwekhondatha ukuthi kungavuzi ngaphandle. Kusetshenziswa isakhiwo se-extrusion, ngeImpahla ye-XLPEekhethelwe ukwahlukanisa. I-XLPE inikeza ukusebenza okuphezulu kakhulu uma kuqhathaniswa ne-polyethylene, enezinto ezinhle kakhulu zokuvala ugesi, ezibonakala ngama-dielectric constants amancane (ε) kanye ne-dielectric loss loss tangent (tgδ). Kuyimpahla ekahle yokwahlukanisa imvamisa ephezulu. I-coefficient yayo yokumelana nevolumu namandla ensimu yokuwohloka ahlala engashintshile ngisho nangemva kwezinsuku eziyisikhombisa zokucwiliswa emanzini. Ngakho-ke, isetshenziswa kabanzi ekufakeni amakhebula. Nokho, inephuzu eliphansi lokuncibilika. Uma isetshenziswa kumakhebula, amaphutha e-overcurrent noma i-short-circuit angabangela ukukhuphuka kwezinga lokushisa, okuholela ekudambiseni nasekuguqulweni kwe-polyethylene, okuholela ekulimaleni kwe-insulation. Ukugcina izinzuzo ze-polyethylene, idlula ekuxhumaniseni, ithuthukise ukumelana kwayo nokushisa kanye nokumelana nokuqhekeka kwengcindezi yemvelo, okwenza impahla ye-polyethylene exhumene ne-cross-linked i-insulation material ekahle.
3. I-Cable Stranding kanye Nomklamo Wokusonga
Inhloso yokuhlanganisa ikhebula nokugoqa ukuvikela ukufakwa, ukuqinisekisa umgogodla wekhebula ozinzile, nokuvimbela ukuxega okuxekethile nama-filler, okuqinisekisa ukuzungeza komgogodla. Iibhande lokugoqa elivimbela amalangabiinikeza izici ezithile ezivimbela amalangabi.
Izinto Zokubopha Nokusonga Ikhebula: Izinto ezisongayo azikwazi ukumelana nomliloindwangu engalukiweibhande, elinamandla aqinile kanye nenkomba ye-flame retardancy engekho ngaphansi kuka-55% wenkomba ye-oxygen. Izinto zokugcwalisa zisebenzisa izintambo zephepha ezingahlali ilangabi (izintambo zamaminerali), ezithambile, ezinenkomba ye-oxygen engekho ngaphansi kuka-30%. Izimfuneko zokuhlanganisa ikhebula nokugoqa zihlanganisa ukukhetha ububanzi bebhande lokugoqa ngokusekelwe kububanzi obuyinhloko kanye ne-engeli yebhendi, kanye nokugqagqana noma isikhala sokugoqa. Isiqondiso sokugoqa singesokunxele. Kudingeka amabhande avimbela amalangabi aphezulu kumabhande avimbela amalangabi. Ukumelana nokushisa kwempahla yokugcwalisa kufanele kufane nezinga lokushisa lokusebenza kwekhebula, futhi ukwakheka kwayo akufanele kuhlanganyele kabiInsulation sheath impahla.Kufanele isuseke ngaphandle kokulimaza umgogodla wokufakelwa.
Isikhathi sokuthumela: Dec-12-2023