Ngesikhathi sokufakwa nokusetshenziswa kwekhebula, lonakaliswa ukucindezeleka komshini, noma ikhebula lisetshenziswa isikhathi eside endaweni enomswakama namanzi, okuzokwenza amanzi angaphandle angene kancane kancane kukhebula. Ngaphansi kwesenzo sensimu kagesi, amathuba okukhiqiza umuthi wamanzi ebusweni bokushiswa kwekhebula azokhula. Umuthi wamanzi owakhiwe yi-electrolysis uzoqhekeza ukushiswa, wehlise ukusebenza kokushiswa kwekhebula, futhi uthinte impilo yekhebula. Ngakho-ke, ukusetshenziswa kwezintambo ezingangeni manzi kubalulekile.
I-cable waterproof ikakhulukazi ibheka ukuvuza kwamanzi ngokuya ngomzila wekhebula kanye nasendleleni ye-radial yekhebula ngokusebenzisa i-cable sheath. Ngakho-ke, isakhiwo se-radial waterproof kanye ne-longitudinal water-blocking sekhebula singasetshenziswa.
1. Ikhebula elingangeni manzi
Inhloso eyinhloko yokuvimbela amanzi angaphandle azungezile ukuvimbela ukugeleza kwamanzi angaphandle azungezile angene kukhebula ngesikhathi sokusetshenziswa. Isakhiwo esingangeni manzi sinezinketho ezilandelayo.
1.1 Isikhwama se-polyethylene esingangeni manzi
I-polyethylene sheath engangeni manzi isebenza kuphela ezidingweni ezijwayelekile zokungangeni manzi. Ukuze izintambo ezicwiliswe emanzini isikhathi eside, ukusebenza okungangeni manzi kwezintambo zikagesi ezingangeni manzi ze-polyethylene sheath kudinga ukuthuthukiswa.
1.2 Isikhwama sensimbi esingangeni manzi
Isakhiwo esingangeni manzi sezintambo eziphansi ze-voltage ezine-voltage elinganisiwe engu-0.6kV/1kV nangaphezulu ngokuvamile sibonakala ngesendlalelo sangaphandle esivikelayo kanye nokugoqwa kwangaphakathi kwe-longitudinal kwebhande elihlanganisiwe le-aluminium-plastic elinezinhlangothi ezimbili. Izintambo ze-voltage eziphakathi nendawo ezine-voltage elinganisiwe engu-3.6kV/6kV nangaphezulu zingangeni manzi nge-radial ngaphansi kwesenzo esihlangene sebhande elihlanganisiwe le-aluminium-plastic kanye nepayipi lokumelana ne-semi-conductive. Izintambo ze-voltage eziphezulu ezinamazinga aphezulu e-voltage zingangenwa manzi ngama-sheath ensimbi afana nama-sheath e-lead noma ama-sheath e-aluminium ahlanganisiwe.
I-sheath ephelele engangeni manzi isetshenziswa kakhulu emseleni wekhebula, emanzini angaphansi komhlaba angcwatshwe ngqo nakwezinye izindawo.
2. Ikhebula elingangeni manzi ngokuqondile
Ukumelana namanzi okude kungacatshangwa ukuthi kwenza umqhubi wekhebula kanye nokufakwa komoya kube nomphumela wokumelana namanzi. Lapho ungqimba lwangaphandle lokuvikela lwekhebula lonakele ngenxa yamandla angaphandle, umswakama noma umswakama ozungezile uzongena ngokuqondile eceleni komqhubi wekhebula kanye nokufakwa komoya. Ukuze sigweme ukulimala komswakama noma umswakama kwikhebula, singasebenzisa izindlela ezilandelayo ukuvikela ikhebula.
(1)Itheyiphu yokuvimba amanzi
Indawo yokwandisa evimbela amanzi ifakwa phakathi kwe-core wire evalekile kanye ne-aluminium-plastic strip ehlanganisiwe. I-Water blocking tape igoqwe nge-core wire evalekile noma i-core cable, kanti izinga lokugoqa kanye nokumboza lingu-25%. I-Water blocking tape iyanda lapho ihlangana namanzi, okwandisa ukuqina phakathi kwe-Water blocking tape kanye ne-cable sheath, ukuze kufezwe umphumela wokuvimba amanzi.
(2)Itheyiphu yokuvimba amanzi ehambisa amanzi kancane
Itheyiphu yokuvimba amanzi e-semi-conductive isetshenziswa kabanzi kukhebula le-voltage ephakathi, ngokusonga i-semi-conductive water blocking tape nxazonke kwesendlalelo sokuvikela insimbi, ukuze kufezwe injongo yokumelana kwamanzi okude kwekhebula. Nakuba umphumela wokuvimba amanzi wekhebula uthuthukiswa, ububanzi bangaphandle bekhebula buyanda ngemva kokuba ikhebula ligoqwe ngetheyiphu yokuvimba amanzi.
(3) Ukugcwaliswa kwamanzi okuvimbayo
Izinto zokugcwalisa ezivimba amanzi ngokuvamileintambo evimba amanzi(intambo) kanye nempuphu evimba amanzi. Impuphu evimba amanzi isetshenziswa kakhulu ukuvimba amanzi phakathi kwama-cores omqhubi osontekile. Uma impuphu evimba amanzi kunzima ukuyinamathisela ku-monofilament yomqhubi, inhlaka yamanzi enhle ingasetshenziswa ngaphandle kwe-monofilament yomqhubi, kanti impuphu evimba amanzi ingasongwa ngaphandle komqhubi. Intambo evimba amanzi (intambo) ivame ukusetshenziselwa ukugcwalisa izikhala phakathi kwezintambo ezintathu ezicindezelwe kahle.
3 Isakhiwo esijwayelekile sokumelana namanzi ekhebula
Ngokwezindawo ezahlukene zokusetshenziswa kanye nezidingo, isakhiwo sokumelana namanzi sekhebula sihlanganisa isakhiwo esingangeni manzi esimise okwe-radial, isakhiwo sokumelana namanzi esimise okwe-radial (kufaka phakathi i-radial) kanye nesakhiwo sokumelana namanzi esizungezile. Isakhiwo esivimba amanzi sekhebula le-voltage ephakathi enama-core amathathu sithathwa njengesibonelo.
3.1 Isakhiwo esingangeni manzi sekhebula le-voltage eliphakathi eliyi-core ezintathu
Ukuvimbela amanzi ngemisebe yekhebula le-voltage eliphakathi elinezinsika ezintathu ngokuvamile kusebenzisa itheyiphu yokuvimba amanzi e-Semi-conductive kanye netheyiphu ye-aluminium eboshwe ngepulasitiki enezinhlangothi ezimbili ukuze kufezwe umsebenzi wokumelana namanzi. Isakhiwo sayo esijwayelekile yilesi: umqhubi, ungqimba lokuvikela umqhubi, ukufakelwa, ungqimba lokuvikela ukufakelwa, ungqimba lokuvikela insimbi (itheyiphu yethusi noma ucingo lwethusi), ukugcwalisa okuvamile, itheyiphu yokuvimba amanzi e-semi-conductive, iphakethe le-longitudinal letheyiphu ye-aluminium eboshwe ngepulasitiki enezinhlangothi ezimbili, isikhwama sangaphandle.
3.2 Ikhebula le-voltage eliphakathi eliyi-core ezintathu isakhiwo sokumelana namanzi eside
Ikhebula le-medium voltage eliphakathi elinama-core amathathu lisebenzisa ne-semi-conductive water blocking tape kanye ne-plastic coated aluminium tape enezinhlangothi ezimbili ukuze kufezwe umsebenzi wokumelana namanzi. Ngaphezu kwalokho, intambo yokuvimba amanzi isetshenziselwa ukugcwalisa igebe eliphakathi kwezintambo ezintathu eziyinhloko. Isakhiwo sayo esijwayelekile yilesi: umqhubi, ungqimba lokuvikela umqhubi, ukufakelwa, ungqimba lokuvikela ukufakelwa, i-semi-conductive water blocking tape, ungqimba lokuvikela insimbi (i-copper tape noma ucingo lwethusi), ukugcwaliswa kwentambo yokuvimba amanzi, i-semi-conductive water blocking tape, i-external sheath.
3.3 Ikhebula le-voltage eliphakathi eliyindilinga eliyindilinga eliyintambo ezintathu
Isakhiwo sokuvimba amanzi esijikelezayo sekhebula sidinga ukuthi umqhubi abe nomphumela wokuvimba amanzi, futhi kuhlanganiswe nezidingo zokuvimba amanzi okungangeni manzi okuqondile kanye nokwesikhathi eside, ukuze kufezwe ukuvimba kwamanzi okujikelezayo. Isakhiwo saso esijwayelekile yilesi: umqhubi wokuvimba amanzi, ungqimba lokuvikela umqhubi, ukufakelwa, ungqimba lokuvikela ukufakelwa, iteyipu yokuvimba amanzi eqhubekayo, ungqimba lokuvikela insimbi (iteyipu yethusi noma ucingo lwethusi), ukugcwaliswa kwentambo yokuvimba amanzi, iteyipu yokuvimba amanzi eqhubekayo, iphakethe le-longitudinal le-aluminium elimbozwe ngepulasitiki eliphindwe kabili, ishede langaphandle.
Ikhebula elivimba amanzi elinezinsika ezintathu lingathuthukiswa libe yizakhiwo ezintathu zekhebula elivimba amanzi elinezinsika eyodwa (ezifana nesakhiwo sekhebula elivimba amanzi elinezinsika ezintathu). Okusho ukuthi, isisekelo ngasinye sekhebula sikhiqizwa kuqala ngokwesakhiwo sekhebula elivimba amanzi elinezinsika eyodwa, bese kuthi izintambo ezintathu ezihlukene zisontwe ngekhebula ukuze zithathe indawo yekhebula elivimba amanzi elinezinsika ezintathu. Ngale ndlela, akugcini nje ngokuthuthukisa ukumelana kwamanzi kwekhebula, kodwa futhi kuhlinzeka ngokulula kokucutshungulwa kwekhebula kanye nokufakwa nokubekwa kwalo kamuva.
4. Izinyathelo zokuphepha zokwenza izixhumi zekhebula ezivimba amanzi
(1) Khetha izinto ezifanele zokuxhumanisa ngokwezincazelo namamodeli ekhebula ukuqinisekisa ikhwalithi yokuxhumanisa ikhebula.
(2) Ungakhethi izinsuku zemvula lapho wenza ama-cable joints avimba amanzi. Lokhu kungenxa yokuthi amanzi e-cable azothinta kakhulu impilo ye-cable, futhi ngisho nezingozi ze-short circuit zizokwenzeka ezimweni ezimbi kakhulu.
(3) Ngaphambi kokwenza ama-cable joints angangeni manzi, funda ngokucophelela imiyalelo yomkhiqizo yomenzi.
(4) Uma ucindezela ipayipi lethusi esihlanganisini, alikwazi ukuba nzima kakhulu, inqobo nje uma licindezelwe endaweni yalo. Ubuso bephelo lethusi ngemva kokugoqa kufanele bufakwe ngendlela eyisicaba ngaphandle kwanoma yiziphi izimbobo.
(5) Uma usebenzisa i-blowtorch ukwenza i-cable heat shrink joint, naka i-blowtorch ehamba phambili naphambili, hhayi nje kuphela ohlangothini olulodwa i-blowtorch ehlala njalo.
(6) Usayizi we-cold shrink cable joint kumele wenziwe ngokuhambisana nemiyalelo yokudweba, ikakhulukazi uma kukhishwa ukwesekwa epayipini eligciniwe, kumele kuqashelwe.
(7) Uma kudingeka, i-sealant ingasetshenziswa ezinhlanganisweni zekhebula ukuvala nokuthuthukisa ikhono lekhebula lokungangeni manzi.
Isikhathi sokuthunyelwe: Agasti-28-2024