Iintambo zokulahla umbane ezisetyenziswa ngaphezulu kweentloko zeenkonzo ziintambo ezibonelela ngemigca yombane yangaphandle. Ziyindlela entsha yokudlulisela umbane phakathi kwee-conductors ezihamba ngaphezulu kweentloko kunye neentambo ezingaphantsi komhlaba, ezaqala uphando nophuhliso ekuqaleni kweminyaka yoo-1960.
Iintambo zokulahla ezisetyenziswa ngaphezulu zenziwe ngomaleko wokufaka ubushushu kunye nomaleko okhuselayo, ngendlela efanayo nenkqubo yokuvelisa iintambo ezidityanisiweyo. Nangona zichaphazeleka lula kukuphazamiseka kwangaphandle kwaye azithandeki ngobuhle, zisetyenziswa kakhulu kwiindawo apho kunzima ukubeka iintambo ezingaphantsi komhlaba ngenxa yokuthembeka kwazo okuphezulu kombane, uzinzo, kunye nokugcinwa okulula.
Sikhetha njani intambo yokulahla inkonzo engaphezulu?
Iintlobo ezintathu zeentambo ze-aluminium service drop cables yi-duplex service drop cable, i-triplex service drop cable, kunye ne-quadruplex service drop cable. Zahlukile ngokwenani lee-conductors kunye nezicelo eziqhelekileyo. Masiqwalasele ngokufutshane indima yento nganye kwezi.
Iintambo zokuwisa iintambo zenkonzo ye-duplex ezinee-conductor ezimbini zisetyenziswa kwiintambo zombane zesigaba esinye kwizicelo ze-120-volt. Zisetyenziswa rhoqo kwiinkqubo zokukhanyisa ngaphandle, kubandakanya nokukhanyisa ezitalatweni. Ngaphezu koko, zihlala zisetyenziswa kwishishini lokwakha inkonzo yexeshana. Inyani eyonwabisayo- Ubungakanani beentambo ze-duplex zaseMelika zibizwa ngegama leentlobo zezinja, kubandakanya i-setter, i-shepherd, kunye ne-chow.
Iintambo zeTriplex service drop ezinee-conductors ezintathu zisetyenziselwa ukuthutha umbane ukusuka kwiintambo zombane ukuya kubathengi, ngakumbi, ukuya kwintloko yemozulu. Kwakhona, iintambo zeTriplex service drop zaseMelika zinebali elinomdla kwigama lazo. Zithiywe ngeentlobo zezilwanyana zaselwandle, ezifana neenkobe, iiclams, kunye neenkala. Amagama eentambo aquka iPaludina, iValuta, kunye neMinex.
Iintambo zenkonzo ye-Quadruplex ezinee-conductor ezine zenzelwe ukubonelela ngemigca yombane yezigaba ezintathu. Zidibanisa ii-transformer zombane ezifakwe kwiipali, uninzi lwazo zifumaneka kwiindawo zasemaphandleni, kunye neentloko zenkonzo zabasebenzisi bokugqibela. Iintambo ze-Quadruplex ezihambelana neemfuno ze-NEC zithiywe ngamagama eentlobo zamahashe, njengeGelding kunye ne-Appaloosa.
Ukwakhiwa kweeNtambo zeAluminiyam zeNkonzo yokuNciphisa
Nangona zingafani iinjongo kunye nenani lee-conductors, zonke iintambo zombane ezisebenza ngaphezulu zinolwakhiwo olufanayo. Ii-conductors zezi ntambo zenziwe nge-aluminium alloy 1350-H19,6201-T81 okanye i-ACSR.
Zine-insulation ye-polyethylene XLPE edityaniswe ne-cross-linked enika ukhuseleko olukhulu kwiingozi zangaphandle. ngakumbi, inokumelana okuhle nokufuma, iimeko zemozulu, kunye nempembelelo yeekhemikhali ezahlukeneyo. Ubushushu bokusebenza kweentambo ze-aluminium eziphezu kwentloko ezine-insulation ye-XLPE bungama-90 degrees Celsius. Amaxesha amaninzi, i-insulation ye-polyethylene inokusetyenziswa endaweni ye-insulation ye-XLPE. Kule meko, ubushushu bokusebenza buncitshiswa bube ngama-75 degrees, into ekufuneka uyikhumbule xa ucinga ngeprojekthi yakho yombane. Uvavanyo lwe-voltage lwazo zonke iintambo zenkonzo yombane eziphezu kwentloko yi-600 volts.
Zonke iintambo zenkonzo ye-aluminiyam zine-conductor engathathi cala okanye i-messenger wire. Injongo yomqhubi we-messenger kukudala indlela engathathi cala yokuba umbane ubaleke kwaye uphephe iingozi, nto leyo ibalulekileyo kwimeko-bume yeentambo zangaphandle. Iintambo ze-Messenger zingenziwa ngezinto ezahlukeneyo, ezifana ne-AAC, i-ACSR, okanye olunye uhlobo lwe-aluminium alloy.
Ukuba ungathanda ukufumana ingcebiso malunga nabaqhubi beenkonzo zokulahla inkunkuma, nceda unxibelelane nathi.
Ixesha leposi: Septemba-20-2024