Iinqaba zothumelo lwentambo zizakhiwo ezide ezisetyenziselwa ukusasaza amandla ombane. Iimpawu zabo zesakhiwo zisekelwe ngokukodwa kwiindidi ezahlukeneyo zezakhiwo ze-truss yendawo. Amalungu ezi nqaba ikakhulu aqulunqwe intsimbi enye equilateral angle okanye intsimbi edityanisiweyo engile. Izinto ezisetyenziswa ngokuqhelekileyo yi-Q235 (A3F) kunye ne-Q345 (16Mn).
Ukudibanisa phakathi kwamalungu kwenziwa ngokusebenzisa iibholiti ezinqabileyo, ezidibanisa amacandelo ngokusebenzisa imikhosi yokucheba. Inqaba yonke yakhiwe ngentsimbi ye-angle, iipleyiti zentsimbi ezidibanisayo, kunye neebholiti. Amanye amacandelo, njengesiseko senqaba, adityaniswe ndawonye ukusuka kwiipleyiti ezininzi zentsimbi ukwenza iyunithi edibeneyo. Olu luyilo luvumela i-galvanization eshushu-dip yokukhusela umhlwa, ukwenza ukuthutha kunye nendibano yokwakha ibe lula kakhulu.
Iinqaba zothumelo lothumelo zingahlelwa ngokwemilo kunye nenjongo yazo. Ngokuqhelekileyo, zahlulahlulwe zibe ziimilo ezintlanu: ezimile okwekomityi, zimile okwekati-entloko, zime nkqo, zimile okwe-cantilever, nezimilise okwebhari. Ngokusekwe kumsebenzi wabo, zinokuhlelwa ngokweenqaba zoxinzelelo, iinqaba zomgca othe tye, iinqaba ze-engile, iinqaba zokutshintsha isigaba (ukutshintsha indawo yomqhubi), iinqaba zokugcina, kunye neenqaba zokuwela.
I-Straight-Line Towers: Ezi zisetyenziswa kumacandelo athe ngqo eentambo zothumelo.
Tension Towers: Ezi zifakelwe ukujongana noxinzelelo kwiiconductor.
I-Angle Towers: Ezi zibekwe kwiindawo apho umgca wothumelo utshintsha indlela.
I-Crosing Towers: Iinqaba eziphakamileyo zisekwe kumacala omabini kuyo nayiphi na into enqumlayo ukuze kuqinisekiswe ukukhutshwa.
I-Phase-Changing Towers: Ezi zifakelwa ngamaxesha aqhelekileyo ukulinganisa i-impedance yabaqhubi abathathu.
I-Terminal Towers: Ezi zikwindawo zoqhagamshelo phakathi kwemigca yothumelo kunye nezikhululo ezincinci.
Iintlobo eziSekwe kwiZixhobo zoLwakhiwo
Iinqaba zothutho zenziwa ikakhulu kwiipali zekhonkrithi eziqinisiweyo kunye neenqaba zentsimbi. Zisenokwahlulwa zibe ziinqaba ezizixhasayo kunye neenqaba ezinamagama ngokusekwe kuzinzo lwazo.
Ukusuka kwiintambo zothumelo ezikhoyo e-China, kuqhelekile ukusebenzisa iinqaba zentsimbi kumanqanaba ombane angaphezu kwe-110kV, ngelixa iipali zekhonkrithi ezomeleziweyo ziqhele ukusetyenziselwa amanqanaba ombane angaphantsi kwe-66kV. Iingcingo zeGuy ziqeshwe ukulungelelanisa imithwalo yecala kunye noxinzelelo kubaqhubi, ukunciphisa umzuzu wokugoba kwisiseko senqaba. Oku kusetyenziswa kweengcingo zabafana nako kunokunciphisa ukusetyenziswa kwezinto kwaye kuthobe ixabiso lilonke lentambo yothumelo. Iinqaba zeGuyed zixhaphake kakhulu kwiindawo ezithe tyaba.
Ukukhethwa kohlobo lwenqaba kunye nokumila kufuneka kusekwe kwizibalo ezihlangabezana neemfuno zombane ngelixa kuqwalaselwa inqanaba lombane, inani leesekethe, umhlaba, kunye neemeko zejoloji. Kubalulekile ukukhetha ifom yenqaba efanele iprojekthi ethile, ekugqibeleni ukhethe uyilo oluqhubela phambili kubugcisa kunye noqoqosho olufanelekileyo ngohlalutyo lothelekiso.
Iintambo zothutho zingahlelwa ngokusekelwe kwiindlela zabo zokufakela kwiintambo zokuhambisa ngaphezulu, iintambo zokuhambisa intambo yamandla, kunye neentambo zothumelo zentsimbi ezifakwe kwigesi.
Imizila yoThumelo oluPhezulu: Ezi ngokuqhelekileyo zisebenzisa iiconductors ezingenanto ezingafakwanga, ezixhaswa ziinqaba ezisemhlabeni, ezineekhondaktha ezixhonywe kwiinqaba zisebenzisa izigqubuthelezi.
Iintambo zoThutho lweCable Cable: Ngokuqhelekileyo zingcwatyelwa ngaphantsi komhlaba okanye zilaliswe kwimisele yentambo okanye itonela, equka iintambo kunye nezincedisi, izixhobo ezincedisayo, kunye nezixhobo ezifakelwe kwiintambo.
I-Gas-Insulated Metal-Enclosed Transmission Lines (GIL): Le ndlela isebenzisa iintsimbi zetsimbi zokuhambisa, zifakwe ngokupheleleyo ngaphakathi kwegobolondo letsimbi ephantsi. Isebenzisa igesi yoxinzelelo (ngokuqhelekileyo igesi ye-SF6) yokugquma, ukuqinisekisa ukuzinza kunye nokhuseleko ngexesha lokudluliselwa kwangoku.
Ngenxa yeendleko eziphezulu zeentambo kunye ne-GIL, ezininzi iintambo zothumelo okwangoku zisebenzisa iintambo eziphezulu.
Iingcingo zothumelo zisenokwahlulwa ngokwamanqanaba ombane zibe ngumbane ophezulu, amandla ombane aphezulu angaphezulu, kunye neentambo zombane eziphezulu kakhulu. E-China, amanqanaba ombane kwiintambo zothumelo aquka: 35kV, 66kV, 110kV, 220kV, 330kV, 500kV, 750kV, 1000kV, ±500kV, ±660kV, ±800kV, kunye ne-±10kV ±10.
Ngokusekwe kuhlobo losasazo lwangoku, iilayini zinokwahlulwa zibe yimigca ye-AC neye-DC:
Imigca ye-AC:
I-Voltage High (HV) Imizila: 35 ~ 220kV
IiNgcaciso zoMbane oPhezulu oPhezulu (EHV): 330 ~ 750kV
IiNgcaciso ze-Ultra High Voltage (UHV): Ngaphezu kwe-750kV
DC Lines:
IiNgcaciso zoMbane oPhezulu (HV): ±400kV, ±500kV
I-Ultra High Voltage (UHV) Imizila: ± 800kV nangaphezulu
Ngokubanzi, ukuba mkhulu umthamo wokuhambisa amandla ombane, kokukhona uphezulu inqanaba lombane lomgca osetyenziswayo. Ukusebenzisa uthumelo lwamandla ombane aphezulu kakhulu kunokunciphisa ilahleko yeentambo, ukuthoba ixabiso ngeyunithi nganye yomthamo wothumelo, kuncitshiswe ukuhlala emhlabeni, nokukhuthaza uzinzo lokusingqongileyo, ngaloo ndlela kusetyenziswe ngokupheleleyo iipaseji zothumelo kunye nokubonelela ngeenzuzo ezibalulekileyo kwezoqoqosho nezentlalo.
Ngokusekelwe kwinani leesekethe, imigca ingahlelwa njenge-single-circuit, double-circuit, okanye i-multi-circuit lines.
Ngokusekelwe kumgama phakathi kwabaqhubi besigaba, imigca ingahlelwa njengemigca eqhelekileyo okanye imigca edibeneyo.
Ixesha lokuposa: Oct-31-2024
