1. Yintoni intambo engangeni manzi?
Iikheyibhile ezinokuthi zisetyenziswe ngokuqhelekileyo emanzini zibizwa ngokudibeneyo njengeentambo zamandla ezingangeni emanzini (ezingenamanzi). Xa intambo ibekwe phantsi kwamanzi, idla ngokuntywiliselwa emanzini okanye kwiindawo ezimanzi, intambo iyadingeka ukuba ibe nomsebenzi wokuthintela amanzi (ukumelana), oko kukuthi, kufuneka ibe nomsebenzi wokuchasana kwamanzi ngokupheleleyo, ukuze kuthintelwe amanzi ukuba angagxili kwintambo, ebangela umonakalo kwintambo, kunye nokuqinisekisa ukusebenza okuzinzile kwexesha elide kwentambo phantsi kwamanzi. Imodeli ye-cable engenamanzi esetyenziswa ngokuqhelekileyo yi-JHS, eye-rubber sleeve ikhebula elingangeni manzi, ikhebula elingangeni manzi likwahlulahlulwe libe likhebula lamandla angangeni manzi kunye nekhebula lekhompyutha elingangeni manzi, njl., kunye nabameli bemodeli FS-YJY, FS-DJYP3VP3.
2. Uhlobo lwesakhiwo sekhebula elingangeni manzi
(1). Kwiintambo zondoqo omnye, songela ii-semi-conductive tape yokuthintela amanzikwi-insulation shield, bhinqa eziqhelekileyotape yokuthintela amanzingaphandle, kwaye emva koko ucinezele i-sheath yangaphandle, ukwenzela ukuba kuqinisekiswe uqhagamshelwano olupheleleyo lwekhaka lesinyithi, bhinqa kuphela i-tape yokuthintela amanzi e-semi-conductive ngaphandle kwekhuselo lokugquma, ikhuselo lesinyithi alisayi kuphinda lilisonge i-tape yokuthintela amanzi, ngokuxhomekeke kwinqanaba leemfuno zokusebenza zokungangeni manzi, ukugcwaliswa kunokuzaliswa ngokuzaliswa kwesiqhelo okanye ukugcwaliswa kwebhloko yamanzi. I-lining yangaphakathi kunye nezixhobo ze-sheath zangaphandle ziyafana nezo zichazwe kwintambo eyodwa engundoqo.
(2). Umaleko we-aluminiyam we-aluminiyam weplastiki ugqunywe ngobude ngaphakathi kwi-sheath yangaphandle okanye umaleko wangaphakathi we-lining njengomaleko ongangeni manzi.
(3). Yandisa i-sheath yangaphandle ye-HDPE ngokuthe ngqo kwintambo. Intambo egqunyiweyo ye-XLPE ngaphezulu kwe-110kV ixhotyiswe ngeshethi yesinyithi ukuhlangabezana neemfuno zokungangeni kwamanzi. Isikhuselo sesinyithi sinokunganyangeki ngokupheleleyo kunye nokuchasana kakuhle kwamanzi e-radial. Iindidi eziphambili zeshethi yentsimbi zezi: umkhono we-aluminiyam ocinezelweyo oshushu, umkhono we-aluminiyam ocinezelweyo oshushu, umkhono we-aluminiyam odityanisiweyo, umkhono wentsimbi odityanisiweyo odityanisiweyo, umkhono wentsimbi ozotyiweyo obandayo njalo njalo.
3. Uhlobo olungangeni manzi lwentambo engenamanzi
Ngokubanzi yahlulwe ibe nkqo kunye neradial ukumelana namanzi ezimbini. Ukuxhathisa amanzi nkqo ngokuqhelekileyo kusetyenziselwaumsonto wokuvala amanzi, umgubo wamanzi kunye ne-tape yokuthintela amanzi, indlela yokumelana nokumelana namanzi kwezi zinto ziqulethe amanzi anokwandisa izinto, xa amanzi avela ekupheleni kwentambo okanye ukusuka kwi-sheath defect ibe, le nto iya kwandisa ngokukhawuleza amanzi ukuthintela ukusasazwa ngakumbi kunye nentambo yobude, ukufezekisa injongo yentambo yokungena kwamanzi. Ukumelana namanzi e-radial kufezekiswa ikakhulu ngokukhupha i-HDPE engeyiyo i-sheath yesinyithi okanye ukucinezela okushushu, ukuwelda kunye nomzobo obandayo weshethi yesinyithi.
4. Ukuhlelwa kweentambo ezingenamanzi
Zintathu iindidi zeentambo ezingangeni manzi ezisetyenziswa eTshayina:
(1). Intambo ye-oyile egqunyiweyo yephepha yeyona ixhaphakileyo ukumelana namanzi. I-insulation yayo kunye nee-conductors zizaliswe ngeoli yentambo, kwaye kukho ijacket yentsimbi (ijacket ye-lead okanye ijacket ye-aluminium) ngaphandle kwe-insulation, eyona ntambo yokumelana namanzi. Ngaphambili, iintambo ezininzi zenkwili (okanye ezingaphantsi kwamanzi) zazisebenzisa iintambo ezigqunywe ngeoli ezinamaphepha, kodwa iintambo ezigqunywe ngamaphepha e-oyile zithintelwa kukuthotywa, kukho ingxaki yokuvuza kweoli, kwaye ukugcinwa kwayo akulunganga, yaye ngoku kusetyenziswa kancinane nangaphantsi.
(2). Intambo ye-ethylene propylene rubber insulated cable esetyenziswa ngokubanzi kwimizila yokuhambisa i-voltage ephantsi kunye nephakathi ngaphantsi kwamanzi ngenxa yokusebenza kwayo okuphezulu ngaphandle kokukhathazeka "komthi wamanzi". Intambo yerabha engangenwa ngamanzi (Uhlobo lwe-JHS) inokusebenza ngokukhuselekileyo kumanzi angekho nzulu ixesha elide.
(3). I-Cross-linked polyethylene (XLPE) intambo yamandla egqunyiweyo ngenxa yombane wayo ogqwesileyo, oomatshini kunye neempawu ezibonakalayo, kwaye inkqubo yokuvelisa ilula, ulwakhiwo olukhanyayo, umthamo omkhulu wothumelo, ukufakwa kunye nokugcinwa kukulungele, akukhawulelwanga kukuhla kunye nezinye iingenelo, ibe yeyona nto isetyenziswa kakhulu ukugquma, kodwa ichaphazeleka ngakumbi kumanzi, kwimveliso kunye nenkqubo yokusebenza ukuba isigqubuthelo sinokungena kwamanzi, ukudiliza umthi wobomi omfutshane, ukudiliza umthi wobomi obufutshane. Ngoko ke, intambo edibeneyo ye-polyethylene e-insulated cable, ngokukodwa intambo ye-voltage ephakathi kunye nephezulu phantsi kwesenzo sombane we-AC, kufuneka ibe "nesakhiwo sokuthintela amanzi" xa isetyenziswe kwindawo yamanzi okanye kwindawo emanzi.
5. Umahluko phakathi kwentambo engenamanzi kunye nentambo eqhelekileyo
Umahluko phakathi kweentambo ezingenamanzi kunye neentambo eziqhelekileyo kukuba iintambo eziqhelekileyo azikwazi ukusetyenziswa emanzini. Intambo ye-JHS engangeni manzi ikwaluhlobo lwentambo yerabha eguquguqukayo, i-insulation yi-rubber insulation, kunye ne-rubber sheath cable eqhelekileyo, i-JHS ikhebula elingangeni manzi lihlala lisetyenziswa, kodwa isemanzini okanye abanye baya kudlula emanzini. iintambo manzi ngokuqhelekileyo 3 core, uninzi lwazo zisetyenziswa xa ukudibanisa impompo, ixabiso iintambo manzi iya kuba kubiza kakhulu kuneentambo zerubha esingxotyeni eqhelekileyo, kunzima ukwahlula ukuba amanzi kwinkangeleko, kufuneka udibane nomthengisi ukwazi umaleko manzi.
6. Umahluko phakathi kwentambo engangeni manzi kunye nentambo enganyangekiyo emanzini
Intambo engenamanzi: thintela amanzi ukuba angene ngaphakathi kwesakhiwo sekhebula, usebenzisa isakhiwo esingenamanzi kunye nezixhobo.
Intambo yokuthintela amanzi: Uvavanyo luvumela amanzi ukuba angene ngaphakathi kwentambo, kwaye ayivumeli ukungena kubude obuchaziweyo phantsi kweemeko ezichaziweyo. Intambo yokuthintela amanzi yahlulwe ibe yi-conductor yokuthintela amanzi kunye ne-cable core blocking yamanzi.
Isakhiwo sokuthintela amanzi se-conductor: ukongeza i-powder yokuthintela amanzi kunye nomsonto wokuthintela amanzi kwinkqubo yocingo olulodwa, xa i-conductor ingena emanzini, i-powder yokuthintela amanzi okanye intambo yokuthintela amanzi yanda ngamanzi ukukhusela ukungena kwamanzi, ngokuqinisekileyo, umqhubi oqinileyo unomsebenzi ongcono wokuthintela amanzi.
Isakhiwo sokuthintela amanzi kwi-core cable: xa i-sheath yangaphandle yonakalisiwe kwaye amanzi angena, i-tape yokuthintela amanzi iyanda. Xa i-tape yokuthintela amanzi isanda, yenza ngokukhawuleza icandelo lokuthintela amanzi ukukhusela ukungena kwamanzi ngakumbi. Kwi-cable-core cable, kunzima kakhulu ukufezekisa ukuxhathisa kwamanzi kwi-core cable, kuba umsantsa ophakathi we-core cable core bukhulu kwaye awuqhelekanga, nokuba ukusetyenziswa kwebhloko yamanzi kuzaliswe, umphumo wokumelana namanzi awulungile, kucetyiswa ukuba undoqo ngamnye uveliswe ngokuhambelana nesiseko esisodwa sokuxhathisa amanzi, kwaye emva koko intambo yenziwe.
Ixesha lokuposa: Oct-23-2024