Lapho onjiniyela behlala phansi ukuze bacacise ukusatshalaliswa kwamandla kagesi esakhiweni, embonini, noma kulayini wokudlulisa ugesi, ikhebula abalikhethayo linquma ngokuthula indlela uhlelo lonke oluzosebenza ngayo iminyaka engamashumi amathathu ezayo. Ikhebula le-YJLV ingenye yezimpendulo eziphathekayo kakhulu kuleso sinqumo, ihlanganisa umgudluli we-aluminium nokuhlukaniswa nge-polyethylene exhunyiwe kanye nomgogodla wangaphandle we-PVC oqinile. Kuwumkhiqizo osebenza kanzima wokusatshalaliswa kwamandla kagesi aphansi naphezulu, futhi uvela kumaphrojekthi asukela emibhoshongweni yezindlu kuya eziteshini zikagesi zezimboni. Abathengi abaqonda ukuthi i-yjlv cable iyini ngempela, ukuthi iziphatha kanjani lapho ithwele umthwalo, nokuthi kufanele isetshenziswe kuphi futhi akufanele isetshenziswe kuphi, bathatha izinqumo zokuthenga ezingcono kakhulu. Lo mhlahlandlela uhamba ngokwakhiwa, izici zokusebenza, izimo zokusetshenziswa, imigomo yokukhetha, kanye nokucatshangelwa kokuthola umkhiqizo okubaluleke kakhulu. Uphinde uchaze ukuthi i-Yunnan Zhongqi Cable Co., Ltd. ikhiqiza futhi ihlinzeka kanjani lo mkhiqizo kumaphrojekthi kulo lonke elaseNingizimu-mpumalanga ye-Asia nase-Afrika.

Isizathu sokuthi ikhebula le-YJLV libalulekile kumaphrojekthi okwakha nokagesi kucacile: linikeza ukusebenza okuthembekile kokuvikela ngaphandle kwezindleko eziphansi zomqhubi uma kuqhathaniswa nokulingana kwethusi. I-aluminium ilula ngeyunithi ngayinye yomthamo wokuthwala umsinga, futhi ukuvikela kwe-XLPE kubekezelela amazinga okushisa aphezulu okuqhubekayo omqhubi kunamadizayini endabuko avikelwe ngephepha noma nge-PVC. Leyo nhlanganisela ivumela amaqembu amaphrojekthi ukuthi andise izabelomali kuma-run amakhebula amade ngaphandle kokubeka engcupheni imingcele yokuphepha. Kumanethiwekhi amakhulu okusabalalisa, ukonga okuvela kuma-conductor e-aluminium kungabuyiselwa ekuhlelweni okungcono, ekuvikelweni okuthuthukisiwe, noma kumasekhethi engeziwe. Abaphathi bokuthenga abaqonda lezi zinto zokushintshana bangavikela izicaciso zabo kubameluleki, kosonkontileka, nakubatshalizimali ngokufanayo. Izigaba ezingezansi zihlukanisa iphuzu ngalinye kulezo ngcaciso ngemininingwane esebenzayo.

I-YJLV ikhebula ichazwa izingqimba ezintathu eziyisisekelo: umgudluli we-aluminium, i-XLPE (i-polyethylene exhunyiwe) yokuvikela, kanye ne-polyvinyl chloride yesembozo sangaphandle. Ohlelweni lokuqanjwa kwamakhebula aseShayina, uhlamvu "YJ" lumelela ukuvikela nge-polyethylene exhunyiwe, "L" ikhombisa umgudluli we-aluminium, kanti "V" isho isembozo se-PVC. Umgudluli ngokwawo ngokuvamile uyi-aluminium ehlanganisiwe, iKilasi 2 ngokwe-IEC 60228, okumnika ukuguquguquka okudingekayo ukuze adonswe ngempumelelo emiseleni nasemathreyini. Ukuvikela nge-XLPE kukhiqizwa ngokuxhumanisa ama-molecule e-polyethylene abe inethiwekhi enezinhlangothi ezintathu, okuyikho okwenza into ikwazi ukusebenza emazingeni okushisa omgudluli afinyelela ku-90°C ngokuqhubekayo kanye no-250°C ngesikhathi sokujikeleza kukagesi. Isembozo se-PVC ke sinikeza ukuvikelwa komshini, ukumelana nomswakama, kanye nezinga lokuvimbela umlilo kuye ngokwenhlanganisela ekhethiwe. Ndawonye, lezi zingqimba zakha ikhebula elihlala isikhathi eside, elingabizi kakhulu, futhi elamukelwa kabanzi ngabahloli.

Iningi lemikhiqizo yekhebula ye-yjlv ehlinzekwa emazweni omhlaba ikhiqizwa futhi ihlolwe ngokuvumelana namazinga aqashelwayo afana ne-IEC 60502-1 kagesi ophansi kanye ne-IEC 60502-2 kagesi ophakathi nendawo, noma uchungechunge lwe-GB/T 12706 olulinganayo. Amapharamitha obuchwepheshe ajwayelekile ahlanganisa amandla kagesi alinganiselwe angu-0.6/1 kV ekusabiseni kagesi ophansi kanye no-6/10 kV, 8.7/15 kV, 12/20 kV, noma u-26/35 kV womsebenzi kagesi ophakathi nendawo. Ukuhlelwa kwezintambo ezijwayelekile kusukela kukholomu eyodwa kuya kwezine neziyisihlanu, kanti izingxenye ezinqamulayo zomguduzi zivame ukutholakala kusukela ku-1.5 mm² kuya ku-630 mm² nangaphezulu uma kuceliwe. Izilinganiso zokumelana nesikhathi esifushane sokujikeleza, ukwehla kwamandla kagesi, kanye namandla okuthwala umsinga konke kuncike engxenyeni enqamulayo, indlela yokufaka, izinga lokushisa lendawo, kanye nesici seqembu. Abathengi kufanele njalo bacele idatha yobuchwepheshe yomkhiqizi kunokuthembela kumatafula ajwayelekile, ngoba amanani we-ampacity ahluka ngendlela ebalulekile phakathi kwemiklamo. Isicaciso esilungiswe kahle sizosho izinga, izinga lamandla kagesi, inani lezintambo, kanye nengxenye enqamulayo ngokusobala.

Umehluko phakathi kwekhebula le-YJV ne-YJLV uncike ezintweni zokwakha umgudluzi. Ikhebula le-YJV lisebenzisa umgudluzi wethusi, kuyilapho ikhebula le-YJLV lisebenzisa i-aluminium, futhi lolo shintsho olulodwa luthinta intengo, isisindo, ukuphathwa ngesikhathi sokufakwa, kanye nokuhamba kukagesi. Ithusi lihambisa ugesi ngempumelelo enkulu ngeyunithi ngayinye yesigaba esiphambanayo, ngakho-ke ikhebula lethusi ngokuvamile lingaba ngusayizi omncane noma amabili kunekhebula le-aluminium elithwala umsinga ofanayo. I-aluminium, nokho, ilula kakhulu futhi ishibhile kakhulu ngekhilogramu, okwenza ibe yinto ekhangayo emizileni emide kanye namaphrojekthi amakhulu lapho isisindo somgudluzi nezindleko kuhamba phambili. I-aluminium futhi idinga ukupheliswa ngokucophelela, njengoba igqwala ngokushesha futhi ijwayele ukukhasa ngaphansi kokucindezelwa, ngakho-ke ama-lug afanele, izixhumi ze-bimetallic, kanye nenhlanganisela elwa nokugqwala zibalulekile. Lapho leyo mininingwane yokufakwa isingathwa ngendlela efanele, ikhebula le-yjlv le-aluminium lisebenza ngokuthembekile amashumi eminyaka. Ukukhetha phakathi kwalezi ezimbili kuncike kwisabelomali sephrojekthi, indawo yokufakwa, kanye nokuthanda kukanjiniyela.

Ukusebenza kukagesi kuyinzuzo eyinhloko yekhebula le-YJLV. I-insulation ye-XLPE inokulahlekelwa kwe-dielectric okuphansi, ukumelana okuphezulu kwe-insulation, namandla e-dielectric amahle kakhulu, okugcina imisinga yokuvuza incane futhi kunciphisa ukushisa ngaphakathi kwekhebula. Ngenxa yokuthi i-insulation ingasebenza ngokuqhubekayo ku-90°C, usayizi ofanayo we-conductor ungathwala umsinga omningi kunokulingana kwe-PVC-insulated okukalwa ku-70°C. Lelo zinga lokushisa eliphezulu lokusebenza lihumusha ngqo ekubeni ikhebula elincane, elilula, futhi elishibhile emthwalweni onikeziwe. Impahla iphinde imelane nokuguga kokushisa kahle, ngakho-ke ikhebula ligcina izakhiwo zalo ze-dielectric phakathi neminyaka eminingi yokusebenza. Kumanethiwekhi okusabalalisa asebenza eduze nomthamo isikhathi eside, le ndawo yokushisa iyinzuzo yangempela yokusebenza. Onjiniyela abaqhathanisa izindleko zokuphila konke hhayi izindleko zokuqala bavame ukuthola ukuthi umklamo we-XLPE uyawina ngokukhululekile.

Ukumelana nokushisa, ukumelana nomswakama, nokuqina kwemishini kuqedela indaba yokusebenza. I-PVC sheath ivikela i-insulation ekuhuzukeni ngesikhathi sokudonsa, kumakhemikhali omhlabathi ezintweni zokufaka ngqo emhlabathini, nasekuchayekeni kwelanga emizileni yangaphandle, ikakhulukazi lapho kucaciswa inhlanganisela ezinzile ku-UV. I-XLPE ngokwayo ayimunthi cishe amanzi, ngakho-ke i-insulation ayonakali emapayipini anomswakama noma ezindaweni ezinomswakama njengoba izintambo ezinama-paper-insulated zazenza ngokomlando. Ikhebula liphinde limelane namakhemikhali amaningi ezimboni ajwayelekile, nakuba ama-solvent anamandla nama-hydrocarbon kufanele njalo ahlolwe ngokumelene neshadi lokumelana namakhemikhali lomkhiqizi. Ukuqina kwemishini kubalulekile ezindaweni zokwakha lapho izintambo zidonswa, zigoqwa, futhi ziphinde zisetshenziswe ngesikhathi semisebenzi yesikhashana. I-sheath ekhishwe kahle enogqinsi olwanele ivimbela imigexo emincane nemigodi emincane kamuva eba ukwehluleka kwe-insulation.

I-conductor ye-aluminium elula inikeza ukonga kwezindleko ngesilinganiso esikhulu. I-aluminium inesisindo esicishe sibe ingxenye eyodwa kwezintathu sethusi ngevolumu efanayo, futhi nakuba ukuhamba kukagesi kuphansi, umehluko wentengo nge-amp ngayinye yomthamo uvame ukuba mkhulu. Ephrojekthini enkulu enamakhulu amakhilomitha ekhebula, lowo mehluko ungakhokhela isekethe eyengeziwe ephelele noma ingxenye enkulu yezindleko zabasebenzi bokufaka. Ikhebula elilula futhi kulula ukuyiphatha endaweni, lidinga imishini yokudonsa emincane kanye nabasebenzi abambalwa ngedramu ngayinye. Izindleko zokuthutha nazo yehla, okubaluleke kakhulu kumaphrojekthi okuthekelisa lapho imali yokuthutha iyisici esibalulekile. Kubathengi abaqhathanisa izilinganiso zentengo, ikhebula le-yjlv livame ukwethula izindleko eziphelele zokufaka ezivuna kakhulu.

Ukudluliswa kwebanga elide nomthamo omkhulu yilapho lezi zinzuzo zihlangana khona. Ukwehla kwamandla kagesi ekuhambeni ibanga elide kuncike kumthamo wamanzi kagesi, ibanga, kanye nokumelana kombhoshongo, ngakho abaklami ngezinye izikhathi bangadinga isigaba esikhudlwana se-aluminium kunalokho abangakusebenzisa kuthusi. Ngisho nangemva kokukhulisa usayizi, isisombululo se-aluminium sivame ukuhlala sishibhile futhi silula kukonke. Izintambo zokuhambisa umthamo omkhulu ezitshalweni zezimboni, iziteshi zokusabalalisa zikagesi, kanye nezinhlelo zokuqoqa amandla avuselelekayo zivame ukucacisa izintambo ze-XLPE ze-aluminium ngenxa yalesi sizathu. Ikhebula liphinda libhekane nokushintsha kokushisa okuphindaphindiwe kwemigudu yemithwalo yansuku zonke ngaphandle kokuqhekeka kwe-insulation okuthinta izinto ezindala. Uma kuvikelwe futhi kuxhunywe ngendlela efanele, linikeza impilo yesevisi ehambisana kahle nempilo yokuklama yezakhiwo nezitshalo elizisebenzelayo.

Ukusatshalaliswa kwamandla kagesi ezakhiweni nasezindaweni zokwakha yikhaya elivame kakhulu lalo mkhiqizo. Emabhilidini ezentengiselwano, ezindaweni zokuhlala, ezibhedlela, nasezikhungweni zezitolo, ikhebula le-yjlv lihambisa ugesi lisuka egumbini lesiguquli noma kusiswishi yamandla eyinhloko liye kumabhodi okusatshalaliswa asesitezi ngasinye. Izinga lamandla aphansi lika-0.6/1 kV livamile kulezi zintambo, ngokuvamile zisebenza ngezinhlamvu ezine noma ezinhlanu lapho i-neutral incishisiwe noma igcwele ngokulingana nomthwalo. Ikhebula livamise ukufakwa kumathreyi, kuma-rack ezitebhisi, noma emishayweni eqondile, futhi isheath ye-PVC inikeza isivikelo esanele kuzo zontathu lezi zimo. Ukusebenza komlilo kungathuthukiswa ngezinhlobo ezivimbela umlilo noma ezingakhiphi intuthu encane nezingenayo i-halogen lapho ikhodi yesakhiwo ikudinga khona. Ngenxa yokuthi lawa maphrojekthi azwela kwisabelomali futhi ayaphindwa, abaqhubi be-aluminium baletha ukonga okubalulekile kulo lonke ukuthuthukiswa.

Izitshalo zezimboni namaphrojekthi obunjiniyela bathembela kukhebula elifanayo ekusabiseni kwangaphakathi. Amafektri, izitshalo zikasimende, izindawo zokuhlanza amanzi, nemigqa yokucubungula konke kudinga ama-feeders aqinile phakathi kwama-substation nezikhungo zokulawula izinjini. Ikhebula le-voltage ephakathi i-yjlv ebangeni lika-6/10 kV kuya ku-26/35 kV livame ukusetshenziswa ekusabiseni ngaphakathi kwesitshalo lapho imigqa yaphezulu ingasebenzeki. Ikhebula likwazi ukumelana nezindawo ezigcwele ama-harmonic ezivamile ekufakweni kwama-variable-speed drive yesimanje, inqobo nje uma umklami ehlola izici zokwehlisa umthamo. Izitshalo zamakhemikhali kufanele ziqinisekise ukuhambisana kwe-sheath nanoma yimaphi amakhemikhali achithekayo noma asemoyeni endaweni. Lapho imizila yekhebula idlula ezindaweni ezinobungozi obukhulu bomlilo, izinketho ze-sheath evimbela umlilo zinconywa kakhulu. Ungabuyekeza ukufakwa okufanayo ku-AMACALA ikhasi ukuze ubone ukuthi lezi zilungiselelo zisebenza kanjani empilweni.

Ukufakwa ngaphansi komhlaba nangaphandle kwendawo kuhambisana ngokwemvelo nedizayini ye-YJLV. Ukugqitshwa ngqo kuvamile ngoba i-PVC sheath imelana nomswakama womhlabathi kanye namakhemikhali omhlabathi ajwayelekile, futhi ikhebula lingalaliswa emiseleni enesihlenga sesihlabathi kanye namathayela okuvikela noma itheyiphu yokuxwayisa. Ekufakweni ngamapayipi, i-sheath ebushelelezi inciphisa ukungqubuzana kokudonsa emabangeni amade. Emizileni yaphezulu komhlaba yangaphandle, izinga le-sheath elimelana ne-UV kufanele licaciswe ukuze kuvinjelwe ukuqhekeka kwendawo ngokuhamba kwesikhathi. Lapho umzila uwela imigwaqo noma imigqa kaloliwe, ukuvikela ngomshini njengokuvalwa ngokhonkolo noma ipayipi lensimbi kuyinqubo ejwayelekile. Amajoyinti kanye nezindawo zokuphela kufanele kufakwe ngabasebenzi abaqeqeshiwe besebenzisa amakhithi afanele, ngoba ukwehluleka okuningi kukhebula eligqitshwe ngaphansi komhlaba kwenzeka ezingxenyeni zokuxhuma hhayi emzimbeni wekhebula uqobo.

Amasistimu kagesi aphakathi naphansi asizakala ngomkhiqizo. Ngasohlangothini lukagesi ophansi, ikhebula lika-0.6/1 kV libhekana nokusabalalisa kokugcina, izintambo eziyisisekelo ezingaphansi, nokuxhumana kwemishini. Ngasohlangothini lukagesi ophakathi, amakhebula asuka ku-6 kV kuya ku-35 kV axhumanisa iziteshi zikagesi kuma-transformer okusabalalisa, axhumanisa ukuphehlwa kwamandla avuselelekayo, futhi asebenza njengomgogodla wamanethiwekhi ayindilinga ezimboni. Ukujiya kwe-insulation nokwakhiwa kwesikrini kuyahluka phakathi kwezigaba zikagesi, ngakho-ke incazelo kumele njalo iveze izinga likagesi eliqondile elidingekayo. Ukuxuba izigaba kuyingozi futhi akuhambisani nemithetho, ngisho nalapho usayizi womqhubi uvumelana ngengozi. Abathengi kufanele baqinisekise i-voltage ekhokhisiwe kulebula yomgqomo kanye nesitifiketi sokuhlolwa ngaphambi kokuba uqale ukufakwa.

Usayizi wekhondaktha kanye nezinga lamandla kagesi yizinqumo ezimbili zokuqala kunoma yikuphi ukucaciswa. Qala ngokuthwala kwamanje, sebenzisa izici ezifanele zokwehlisa umthamo zezinga lokushisa lendawo, ukumelana nokushisa kwenhlabathi, ukuhlukaniswa ngamaqembu, kanye nendlela yokufaka, bese ukhetha isigaba esinqamulayo esenelisa kokubili umthamo wama-amp kanye nemikhawulo yokwehla kwamandla kagesi. Izinga lamandla kagesi kufanele lihambisane namandla kagesi asemthethweni kanye namandla kagesi aphezulu kakhulu ohlelo, ngezinga elijwayelekile lika-0.6/1 kV le-LV kanye nenani le-Um elifanele lezinhlelo ze-MV. Ukumelana nesifunda esifushane ukuhlolwa kwesithathu, ngoba ikhondaktha kufanele ikwazi ukumelana nesikhathi sokususwa kokuvikela ngaphandle komonakalo. Abaklami kufanele futhi baqinisekise ukuthi usayizi wekhondaktha engathathi hlangothi uhambisana nokuqukethwe kwe-harmonic komthwalo. Ukuthola lezi zinto eziyisisekelo kahle kuvimbela ukusetshenzwa kabusha okubizayo okulandela i-feeder encane kakhulu.

Inombolo yomongo kanye nokukhethwa kwesigaba se-cross-section kuncike ohlelweni lokuthungela umhlaba kanye nohlobo lomthwalo. Ikhebula elinomongo owodwa lisetshenziselwa ama-feeders anamandla aphezulu kanye nalapho ibanga lesigaba libalulekile, kuyilapho izakhiwo ezinomongo emithathu kanye nomongo emine zifaneleka ukusatshalaliswa kwezinto ezintathu ezingamazinga amaningi. Ikhebula elinomongo emihlanu elinokuhamba komhlaba okuhlukile livamile ezinsizeni zezakhiwo lapho ukuthungela umhlaba okukhuselayo kufanele kwenziwe ngaphakathi kwekhebula elifanayo. Amamotho amakhulu, ama-transformer, kanye nokuxhumana kwe-switchgear kungase kudinge ukugijima ngokuhambisana kwamakhebula amancane kunokuba kube nomhambi oyedwa omkhulu kakhulu, okuthuthukisa ukuphatha futhi kunciphise izinkinga ze-bending radius. Ukugijima ngakunye okuhambisanayo kufanele kube nobude obufanayo, isigaba se-cross-section, kanye nomzila ofanayo ukuze kuqinisekiswe ukwabelana kwamanje okulinganayo. Ukunaka ngokucophelela lapha kuyakhokhela ekulayisheni okulinganiselayo nasekusebenzeni okulindelekile.

Isimo sendawo yokufaka kanye nezimo zomzila ngokuvamile kunquma ukucaciswa kokugcina. Imizila egqitshiwe idinga ukujiya okwanele kwesikhwama, futhi lapho amagundane eyinkinga eyaziwayo, kufanele kucatshangelwe inketho yensimbi yensimbi noma yipuleti lensimbi. Amathreyi ekhebula ezindaweni zezimboni angadinga izikhwama ezivimbela umlilo, futhi imigudu noma izindawo eziwumkhawulo kungadingeka izinto ezingakhanyi intuthu futhi ezingenayo i-halogen. Irediyasi yokugoba encane, imikhawulo yokudonsa, kanye nesikhala sokusekela konke kuthonya ukukhetha phakathi kwemiklamo ye-single-core ne-multicore. Izinga lokushisa lendawo emzileni kuthonya isici sokwehlisa, kwesinye isikhathi kakhulu ezindaweni ezishisayo. Ukubhala lezi zimo esigabeni sokucacisa kugwema ukumangala ngesikhathi sokufaka. Ukuhlola indawo okufushane cishe kuhlale kushibhile kunokushintsha ikhebula.

Ukuhambisana nezindinganiso zephrojekthi akunakuxoxiswana ngakho ekuthengeni okubalulekile. Qinisekisa ukuthi iphrojekthi ibhekisela ku-IEC, GB, BS, noma ikhodi kazwelonke, futhi uqinisekise ukuthi umkhiqizi angahlinzeka ngezitifiketi zokuhlolwa ezihambisana naleyo ndinganiso. Ukuhlolwa kwabantu besithathu, imibiko yokuhlolwa kohlobo, nedatha yokuhlolwa okujwayelekile konke kufanele kucelwe njengengxenye ye-oda lokuthenga. Ezingqalasizindeni zomphakathi namaphrojekthi okuthumela kwamanye amazwe, isitifiketi sokugunyazwa kwentela nokwamukelwa kwenkampani yezinsiza kungase futhi kudingeke. Abathengi kufanele baqinisekise ukuthi uhlelo lwabo lokuphatha ikhwalithi lomhlinzeki luqinisekisiwe, isibonelo nge-ISO 9001, nokuthi ukuhlolwa kokwamukelwa kwemboni kuyatholakala. Ukufanisa imibhalo nesimiso kubalulekile njengokufanisa ikhebula ngokwalo.

I-Yunnan Zhongqi Cable Co., Ltd. isebenza ngenqubo ehlelekile yokuhlola ikhwalithi kuyo yonke ingxenye yokukhiqiza. Izinto zokusetshenziswa ziyahlolwa lapho zifika, kuhlolwe ukumelana nogesi kwezintambo, ukuhlanzeka kwenhlanganisela yokuvikela, kanye nezici zenhlanganisela yesembozo ngaphambi kokuba kuqale ukucindezelwa. Ukuhlolwa kwangaphakathi kwenqubo kuhlanganisa ububanzi bomthombo kagesi, ukulingana kobukhulu bokuvikela, kanye nobukhulu besembozo ezindaweni eziningi eduze komgqomo. Izivivinyo zikagesi ezijwayelekile ezihlanganisa ukumelana kukagesi womthombo, ukumelana kukagesi wokuvikela, kanye nezivivinyo zokumelana namandla kagesi aphezulu ziyenziwa kukhebula eliqediwe ngaphambi kokuba liphume emugqeni. Noma yimuphi umgqomo ongahambisani nezidingo uyavalelwa bese uyalungiswa noma ulahlwe esikhundleni sokuthunyelwa. Amarekhodi agcinwa ukuze ukulandelela emuva emkhakheni wokukhiqiza kuhlale kutholakala kumklami. Lesi sikhathi sokuqeqeshwa yisona esivumela inkampani ukuthi ihlinzeke ngamakhebula adlula ukuhlolwa kwabantu besithathu lapho efika.

Izicaciso zangokwezifiso ziyingxenye ewumgogodla wesevisi. Abathengi bangacela ubude obungejwayelekile, izingxenye ezithile zomgudu kagesi, izinto ezihlukile zokumboza ezifana ne-PVC evimbela umlilo noma into enomusi ophansi ongena-halogen, imibhalo yekhebula ephrintiwe, kanye nokumakwa kwamadramu okukhethekile kwiphrojekthi. Ukufakwa kombala kwezinhlamvu, kokubili kokuhlonza isigaba kanye nabahambi bombhede, kungashintshwa ukuze kuhambisane nemikhuba yemakethe yendawo okuyiwa kuyo. Ukupakisha kungalungiswa ukuze kuhambisane nokuthutha ngomkhumbi, ngamadramu okhuni alinganiswe ngokwesitsha futhi aphathwe ukuze ahlangabezane nemithetho yokungenisa yezempilo yezitshalo. Lapho iphrojekthi idinga khona, inkampani ingakhiqiza amakhebula ngokwezicaciso zobuchwepheshe zomthengi uqobo esikhundleni sento ejwayelekile yekhathalogi. TheKWEYELWE ikhasi lichaza ukuhamba komsebenzi ogcwele kusukela ekubuziseni kuze kufike ekuthunyelweni, kuhlanganise nendlela imidwebo nemininingwane eqinisekiswa ngayo ngaphambi kokukhiqiza. Amasampula amahhala ayatholakala ukuze ahlolwe, okuvumela onjiniyela ukuthi baqinisekise ukugoqwa komqhubi, ukujiya kwe-insulation, kanye nekhwalithi ye-sheath ngaphambi kokuzibophezela kwi-oda ephelele.

Ukuthenga ngqo efektri kususa izingqimba zokwengezwa kwentengo yabalamuli futhi kunikeza amaqembu omsebenzi ukufinyelela okuqondile ekuhlelweni kokukhiqiza. I-Yunnan Zhongqi Cable ihlinzeka ngamakhebula kagesi nezintambo zokwakha ngqo esizindeni sayo sokukhiqiza, okuvumela ukuthi izintengo zamayunithi zihlale zincintisanayo ngaphandle kokuyekethisa ezintweni zokwakha. Izikhathi zokulethwa ezizinzile zibalulekile ngokulinganayo, ngoba ukulethwa kwekhebula okubambezelekile kungamisa uhlelo lonke lokwakha. Ukuxhumana okuqondile nefekthri kusho ukuthi izinsuku zokulethwa ziqinisekiswa ngokuhambisana nomthamo wangempela wokukhiqiza esikhundleni sokulinganisa komthengisi kabusha. Abathengi futhi bathola izimpendulo ezicacile emibuzweni yezobuchwepheshe, ngoba abantu abanikeza intengo ye-oda yibo abantu abaqonda izingqinamba zokukhiqiza. Emisebenzini ephindwayo, lobu budlelwano bufinyeza umjikelezo wokucacisa kakhulu.

Isipiliyoni sokuthumela ngaphandle kulo lonke elaseNingizimu-mpumalanga ye-Asia nase-Afrika sibe nomthelela endleleni inkampani ephethe ngayo ama-oda aphesheya. Imibhalo, amazinga okupakisha, nezinhlelo zokulayisha amakhonteyina ziyashintshwa ukuze zihambisane nezidingo zendawo ekuyiwa kuyo, futhi ithimba lijwayele izinqubo zokuhlola nokwamukela ezivamile kulezi zimakethe. Ukucatshangelwa kwesimo sezulu nakho kubalulekile: izintambo eziya ezindaweni ezishisayo nezinomswakama zicaciswa ngamakhompiyundi afanele e-sheath kanye nokucatshangelwa okulungile kokwehla kwamandla. Amathimba amaphrojekthi kulezi zindawo ngokuvamile adinga amanani ama-oda aguquguqukayo, okuxuba izintambo ze-XLPE ze-voltage ephakathi nezintambo zokusabalalisa ze-voltage ephansi nezintambo zokwakha emthwalweni owodwa. Lokho kulayisha okuhlanganisiwe kunciphisa izindleko zokuthutha ngemitha futhi kwenza ezokuthutha zibe lula. Umphumela uwuhlelo lokuhlinzeka oluziphatha njengomthombo wasekhaya kunomthombo okude.

Ukwesekwa kwamaphrojekthi okwakha kanye nobunjiniyela kudlulela ngalé kwekhebula ngokwalo. Inkampani ingeluleka ngosayizi womqhubi wemithwalo ethile, incomise izinketho ze-sheath yezindawo ezithile, futhi inikeze imibhalo yobuchwepheshe edingwa ngabacebisi ukuze kuthunyelwe izicelo zokugunyazwa. Lapho iphrojekthi idinga iphakethe elixubile le-YJV, YJLV, BV, RV, RVS, kanye namakhebula e-XLPE asezingeni eliphakathi nendawo, i-oda elilodwa lingakhokhela lonke uhlu lwezinto ezidingekayo. Lokhu kwenza ukuphathwa komhlinzeki kube lula futhi kunciphisa ingozi yokufika kwezinsiza ezingahambisani ezivela kubathengisi abahlukene. Ukuhlolwa kwangaphambi kokuthunyelwa kungahlelwa kubathengi abafuna ukuqinisekiswa okuzimele ngaphambi kokuthunyelwa. Ungabona uhla ku-IMIKHIKIZO ikhasi, kanye ne- IKHASI LASEKHAYA ikhasi lichaza iphrofayela yenkampani kanye nekhono lokukhiqiza. Ukuze uthole izibuyekezo zenkampani kanye namanothi ezobuchwepheshe, i- Izindaba isigaba sibuyekezwa njalo.

I-YJLV cable ithola indawo yayo ekusabiseni kwamandla kwanamuhla ngokuhlanganisa okulula kwe-XLPE insulation ethembekile, i-PVC sheath eqinile, kanye ne-aluminum conductor elula egcina isabelomali sephrojekthi ngaphansi kolawulo. Isebenza kahle ezakhiweni, ezimbonini, emizileni egqitshiwe, kanye namanethiwekhi kagesi aphakathi nendawo, inqobo nje uma ukucaciswa kuhambisana nezimo zokufakwa futhi ukuxhumana kwenziwa ngendlela efanele. Abathengi abathatha isikhathi sokuqinisekisa izinga lamandla kagesi, ukusikeka, inani lezintambo, kanye nezinketho ze-sheath bagwema izimbangela ezivame kakhulu zokwehluleka kwangaphambi kwesikhathi. Ukusebenza nomhlinzeki oqondile wasefekthri kunciphisa uchungechunge lokuxhumana futhi kunikeza amaphrojekthi ukulethwa okulindelekile. I-Yunnan Zhongqi Cable Co., Ltd. ikhiqiza i-yjlv cable kanye ne-YJV, BV, RV, RVS, kanye namakhebula kagesi aphakathi nendawo e-XLPE, ngokulawulwa kwekhwalithi okuqinile, ukucaciswa okwenzelwe umuntu, kanye namasampula amahhala okuhlola. Ukuze uxoxe ngokucaciswa, ucele isilinganiso sentengo, noma uhlele ukuthunyelwa kwesampula kwiphrojekthi yakho elandelayo yokwakha noma yobunjiniyela, xhumana neqembu le-Yunnan Zhongqi Cable ngqo.

I-YJLV iyikhebula lamandla eline-insulation ye-polyethylene exhumanisiwe, eline-conductor ye-aluminium kanye ne-sheath yangaphandle ye-PVC. Ekubhalweni kwayo, u-"YJ" ukhombisa i-insulation ye-XLPE, u-"L" ukhombisa i-conductor ye-aluminium, kanti u-"V" ukhombisa i-sheath ye-PVC. Ngokuvamile isetshenziselwa ukusatshalaliswa kwamandla kagesi aphansi naphezulu.

I-YJLV isetshenziswa ekusatshalalisweni kwamandla kagesi ezakhiweni, ezindaweni zokuhambisa zamafemu ezimboni, ekufakweni ngaphansi komhlaba nangaphandle, kanye nezinhlelo zamandla kagesi aphansi noma aphezulu. Ifanele imizila lapho kukhethwa khona i-conductor ye-aluminium elula futhi engabizi kakhulu kune-copper, kuhlanganise nokuhamba okude kanye nezihambisi zamandla amakhulu.

Ikhebula le-YJV lisebenzisa umqhubi wethusi, kuyilapho ikhebula le-YJLV lisebenzisa umqhubi we-aluminium. Womabili asebenzisa i-XLPE insulation kanye ne-PVC sheath, kodwa ithusi linikeza ukuhamba kahle kukagesi ngeyunithi ngayinye ye-cross-section, kuyilapho i-aluminium ilula futhi ishibhile. Ukukhetha kuncike kwisabelomali, ukuphatha ukufakwa, kanye nezidingo zokwehla kwamandla kagesi.

Izilinganiso ezijwayelekile zihlanganisa u-0.6/1 kV wokusabalalisa kagesi ophansi kanye no-6/10 kV, 8.7/15 kV, 12/20 kV, no-26/35 kV wezinhlelo zamandla kagesi aphakathi nendawo. Izinga elifanele kufanele likhethwe ngokuvumelana namandla kagesi okuzisholo kanye namandla kagesi aphezulu ohlelo.

Yebo, intambo ye-YJLV ivame ukufakwa emiseleni yokungcwaba okuqondile noma emapayipini. I-PVC sheath inikeza ukumelana nomswakama namakhemikhali, futhi kunconywa ukuvikelwa okwengeziwe kwemishini lapho umzila unqamula imigwaqo noma uvezwa ekulimaleni. Kufanele kucaciswe izinga le-sheath elizinze ku-UV ezingxenyeni zangaphandle ezingaphezulu komhlaba.

Yebo, i-Yunnan Zhongqi Cable inikeza ubude obenziwe ngendlela oyifunayo, izingxenye ezinqamulayo zomqhubi, izingxube ze-sheath, ukufakwa kwemibala yomgogodla, imibhalo ephrintiwe, nokumakwa kwedramu. Izinketho ze-sheath ezivimbela umlilo nezingakhiphi intuthu encane futhi ziyatholakala uma ziceliwe kumaphrojekthi anezidingo ezithile zokuphepha komlilo.

Xhumana nethimba lezokuthengisa le-Yunnan Zhongqi Cable ngezinga lamandla kagesi olidingayo, inani lemithambo, kanye nokunqamuka. Inkampani ihlinzeka ngamasampula amahhala okuhlola ukuze onjiniyela bakwazi ukuqinisekisa ukuhlangana kwabaholi, ukujiya kwe-insulation, kanye nekhwalithi yesheathu ngaphambi kokufaka i-oda elikhulu.

Ikhebula le-YJLV eline-XLPE-insulated likalwa ngezinga lokushisa eliqhubekayo labaholi elingu-90°C, kanye nokuphuma kwesikhashana kwesekethe kuze kufike ku-250°C isikhathi esichazwe yizinga. Le mikhawulo iphezulu kunekhebula le-PVC-insulated, okuvumela umthamo omkhulu wokuthwala umsinga wokunqamuka okufanayo.

Yebo, inqobo nje uma isicaciso sibheka amazinga okushisa aphezulu ngokusebenzisa izici zokwehlisa umthamo ezifanele. I-Yunnan Zhongqi Cable ihlinzeka njalo ngamakhebula eNingizimu-mpumalanga ye-Asia nase-Afrika futhi ingancoma izinhlanganisela ze-sheath nosayizi babaqhubi abafanele izindawo ezishisayo, ezinomswakama, nasogwini.

Inkampani yenza ukuhlolwa kwezinto ezifika ngaphakathi, ukuhlolwa ngesikhathi senqubo yobubanzi be-conductor kanye nokuhlangana kwe-insulation, kanye nokuhlolwa kukagesi okuvamile okuhlanganisa ukumelana kwe-conductor kanye nokuhlolwa kokumelana namandla kagesi aphezulu. Amarekhodi agcinwa ukuze kulandeleke, futhi ukuhlolwa okuzimele ngaphambi kokuthunyelwa kungahlelwa uma kuceliwe.