Ngexesha lokufakelwa nokusetyenziswa kwentambo, yonakaliswa kuxinzelelo loomatshini, okanye intambo isetyenziswa ixesha elide kwindawo efumileyo nenamanzi, nto leyo eya kubangela ukuba amanzi angaphandle angene kancinci kancinci kwintambo. Phantsi kwesenzo sombane, amathuba okuvelisa umthi wamanzi kumphezulu wokufakelwa kwentambo aya kwanda. Umthi wamanzi owenziwe yi-electrolysis uya kuqhekeza ukufakelwa kwentambo, unciphise ukusebenza kokufakelwa kwentambo, kwaye uchaphazele ubomi benkonzo yentambo. Ke ngoko, ukusetyenziswa kweentambo ezingangeni manzi kubalulekile.
I-Cable waterproof ikakhulu iqwalasela ukuvuza kwamanzi kwicala lomqhubi wentambo nakwicala le-radial yentambo nge-cable sheath. Ke ngoko, isakhiwo se-radial waterproof kunye ne-longitudinal water-blocking se-cable singasetyenziswa.
1.I-radial radial manzi
Eyona njongo iphambili yokuthintela amanzi angaphandle ajikeleze intambo kukuthintela ukungena kwamanzi angaphandle ajikeleze intambo ngexesha lokusetyenziswa. Ulwakhiwo olungangeni manzi luneendlela ezilandelayo.
1.1 I-polyethylene sheath engangeni manzi
I-polyethylene sheath engangeni manzi isebenza kuphela kwiimfuno eziqhelekileyo zokungangeni manzi. Kwiintambo ezifakwe emanzini ixesha elide, ukusebenza okungangeni manzi kweentambo zamandla ezingangeni manzi ze-polyethylene sheath kufuneka kuphuculwe.
1.2 Isingxobo sesinyithi esingangeni manzi
Ulwakhiwo olungangeni manzi lwe-radial lweentambo ze-voltage ephantsi ezine-voltage elinganisiweyo ye-0.6kV/1kV nangaphezulu luqhele ukwenziwa ngomaleko wangaphandle okhuselayo kunye nokusonga kwangaphakathi okude kwebhanti ye-aluminium-plastic composite enamacala amabini. Iintambo ze-voltage eziphakathi ezine-voltage elinganisiweyo ye-3.6kV/6kV nangaphezulu azingeni manzi phantsi kwesenzo esidibeneyo sebhanti ye-aluminium-plastic composite kunye ne-hose yokumelana ne-semi-conductive. Iintambo ze-voltage eziphezulu ezinamazinga aphezulu e-voltage zinokuba zingangeni manzi ngee-sheath zesinyithi ezifana nee-sheath ze-lead okanye ii-sheath ze-aluminium ezirhangqiweyo.
Isingxobo esibanzi esingangeni manzi sisebenza kakhulu kumsele wentambo, ongcwatywe ngqo emanzini angaphantsi komhlaba nakwezinye iindawo.
2. Intambo engangeni manzi ngokuthe nkqo
Ukumelana namanzi okude kunokucingelwa ukuba kwenza umqhubi wentambo kunye nokufakwa kwe-insulation kube nefuthe lokumelana namanzi. Xa umaleko wangaphandle wokukhusela wentambo wonakele ngenxa yamandla angaphandle, umswakama okanye ukufuma okujikelezileyo kuya kungena ngokuthe nkqo ecaleni komqhubi wentambo kunye necala lokufakwa kwe-insulation. Ukuze siphephe ukonakala komswakama okanye ukufuma kwintambo, singasebenzisa ezi ndlela zilandelayo ukukhusela intambo.
(1)Iteyiphu yokuvimba amanzi
Kongezwa indawo yokwandisa ekwaziyo ukumelana namanzi phakathi kwe-insulated wire core kunye ne-aluminium-plastic composite strip. I-Water blocking tape isongelwe kwi-insulated wire core okanye kwi-cable core, kwaye izinga lokusonga kunye nokugubungela yi-25%. I-Water blocking tape iyanda xa idibana namanzi, nto leyo eyandisa ukuqina phakathi kwe-Water blocking tape kunye ne-cable sheath, ukuze kufezekiswe isiphumo sokuthintela amanzi.
(2)Iteyiphu yokuthintela amanzi eqhuba kancinci
Iteyiphu yokuvimba amanzi e-semi-conductive isetyenziswa kakhulu kwintambo ye-voltage ephakathi, ngokuyisonga iteyiphu yokuvimba amanzi e-semi-conductive ijikeleze umaleko wokukhusela isinyithi, ukufezekisa injongo yokumelana kwamanzi okude kwentambo. Nangona isiphumo sokuthintela amanzi sentambo siphucukile, ububanzi bangaphandle bentambo buyanda emva kokuba intambo isongelwe kwiteyiphu yokuvimba amanzi.
(3) Ukuzaliswa kwamanzi okuvimba
Izinto zokuzalisa ezithintela amanzi zihlalaintambo evala amanzi(intambo) kunye nomgubo ovimba amanzi. Umgubo ovimba amanzi usetyenziswa kakhulu ukuvala amanzi phakathi kwee-conductor conductor ezijijekileyo. Xa umgubo ovimba amanzi kunzima ukuwuncamathisela kwi-conductor monofilament, i-water adhesive positive ingasetyenziswa ngaphandle kwe-conductor monofilament, kwaye umgubo ovimba amanzi ungasongwa ngaphandle kwe-conductor. Intambo evimba amanzi (intambo) idla ngokusetyenziselwa ukugcwalisa izithuba phakathi kweentambo ezintathu ezixineneyo.
3 Ulwakhiwo ngokubanzi lokumelana namanzi ekhebula
Ngokweendawo ezahlukeneyo zokusetyenziswa kunye neemfuno, isakhiwo sokumelana namanzi sentambo siquka isakhiwo esingangeni manzi se-radial, isakhiwo sokumelana namanzi se-longitudinal (kuquka ne-radial) kunye nesakhiwo sokumelana namanzi esijikeleze yonke indawo. Umzekelo, isakhiwo esivimba amanzi sentambo ye-medium voltage ene-core ezintathu sithathwa njengesakhiwo.
3.1 Ulwakhiwo olungangeni manzi lwentambo ye-voltage ephakathi ene-core ezintathu
Ukuthintela amanzi ngemitha yekhebula le-medium voltage elinee-core ezintathu ngokubanzi kusebenzisa iteyiphu yokuvimba amanzi enee-semi-conductive kunye neteyiphu ye-aluminium enee-double-side coated yeplastiki ukuze kufezekiswe umsebenzi wokuxhathisa amanzi. Ulwakhiwo lwayo ngokubanzi lulandelayo: umqhubi, umaleko wokukhusela umqhubi, ubushushu, umaleko wokukhusela ubushushu, umaleko wokukhusela isinyithi (iteyiphu yobhedu okanye ucingo lobhedu), ukuzaliswa okuqhelekileyo, iteyiphu yokukhusela amanzi enee-semi-conductive, iteyiphu ye-aluminium enee-double-side coated yeplastiki, iphakheji ende, ishedi yangaphandle.
3.2 Intambo ye-voltage ephakathi ene-core ezintathu isakhiwo sokumelana namanzi esinde
Intambo ye-medium voltage ene-core ezintathu ikwasebenzisa iteyipu yokuvimba amanzi e-semi-conductive kunye neteyipu ye-aluminium egqunywe ngeplastiki enamacala amabini ukuze kufezekiswe umsebenzi wokuxhathisa amanzi. Ukongeza, intambo yokuvimba amanzi isetyenziselwa ukugcwalisa umsantsa phakathi kweentambo ezintathu eziphambili. Ulwakhiwo lwayo ngokubanzi lulandelayo: umqhubi, umaleko wokukhusela umqhubi, ubushushu, umaleko wokukhusela ubushushu, iteyipu yokukhusela amanzi e-semi-conductive, umaleko wokukhusela isinyithi (iteyipu yobhedu okanye ucingo lobhedu), ukuzaliswa kwentambo yokuvimba amanzi, iteyipu yokukhusela amanzi e-semi-conductive, isheya langaphandle.
3.3 Intambo ye-voltage ephakathi ene-core ezintathu ejikeleze yonke indawo yokumelana namanzi
Ulwakhiwo lokuvala amanzi olujikelezileyo lwentambo lufuna ukuba umqhubi wentambo abe nefuthe lokuvala amanzi, kwaye zidityaniswe neemfuno zokuvala amanzi okungangeni manzi kunye nokuvala amanzi okude, ukuze kufezekiswe ukuvala amanzi okujikeleze yonke indawo. Ulwakhiwo lwayo ngokubanzi lulandelayo: umqhubi wentambo yokuvala amanzi, umaleko wokukhusela umqhubi wentambo, ukuvala, umaleko wokukhusela ubushushu, iteyiphu yokukhusela amanzi eqhuba kancinci, umaleko wokukhusela isinyithi (iteyiphu yobhedu okanye ucingo lobhedu), ukuzaliswa kwentambo yokuvimba amanzi, iteyiphu yokukhusela amanzi eqhuba kancinci, iteyiphu ye-aluminium egqunywe ngeplastiki enamacala amabini, iphakheji ende, isheya yangaphandle.
Intambo yokuvimba amanzi eneziseko ezintathu ingaphuculwa ibe zizakhiwo ezintathu zentambo yokuvimba amanzi eneziseko ezintathu (ezifana nesakhiwo sentambo yokukhusela amanzi esineziseko ezintathu). Oko kukuthi, isiseko sentambo nganye siqala senziwe ngokwesakhiwo sentambo yokuvimba amanzi eneziseko ezintathu, kwaye emva koko iintambo ezintathu ezahlukeneyo zijijwa ngentambo ukuze zithathe indawo yentambo yokuvimba amanzi eneziseko ezintathu. Ngale ndlela, ayiphuculi nje kuphela ukumelana namanzi kwentambo, kodwa ikwabonelela ngokulula kokucutshungulwa kwentambo kunye nokufakwa kunye nokubekwa kwayo kamva.
4. Amanyathelo okuzikhusela ekwenzeni izihlanganisi zekhebula ezithintela amanzi
(1) Khetha izinto ezifanelekileyo zokudibanisa ngokweenkcukacha kunye neemodeli zentambo ukuqinisekisa umgangatho wokudibanisa intambo.
(2) Musa ukukhetha imihla yemvula xa usenza iintambo ezithintela amanzi. Oku kungenxa yokuba amanzi entambo aya kuyichaphazela kakhulu ubomi benkonzo yentambo, kwaye neengozi zesekethe emfutshane ziya kwenzeka kwiimeko ezinzulu.
(3) Ngaphambi kokuba wenze iintambo ezikwaziyo ukumelana namanzi, funda ngononophelo imiyalelo yemveliso yomenzi.
(4) Xa ucinezela umbhobho wobhedu kwindawo edibeneyo, awunakuba nzima kakhulu, logama nje ucinezelwe kwindawo yawo. Ubuso besiphelo sobhedu emva kokuqhoboshelwa kufuneka bufakwe buthe tyaba ngaphandle kwezibhaxa.
(5) Xa usebenzisa i-blowtorch ukwenza i-cable heat shrink joint, qaphela i-blowtorch ehamba phambili nangasemva, ingabi yi-blowtorch ehamba kwicala elinye kuphela.
(6) Ubungakanani bentambo yokunciphisa ebandayo kufuneka yenziwe ngokuhambelana nemiyalelo yokuzoba, ingakumbi xa kukhutshwa inkxaso kumbhobho ogciniweyo, kufuneka kuqatshelwe.
(7) Ukuba kuyimfuneko, i-sealant ingasetyenziswa kwiindawo zokudibanisa iintambo ukuvala nokuphucula ngakumbi amandla okungena kwamanzi entambo.
Ixesha lokuthumela: Agasti-28-2024