Cov kab hluav taws xob sib txuas yog cov qauv siab siv rau kev xa hluav taws xob hluav taws xob. Lawv cov yam ntxwv ntawm cov qauv yog feem ntau nyob ntawm ntau hom spatial truss qauv. Cov tswv cuab ntawm cov yees no yog tsim los ntawm tib lub kaum sab xis hlau los yog sib xyaw lub kaum ntse ntse. Cov khoom siv feem ntau yog Q235 (A3F) thiab Q345 (16Mn).
Kev sib txuas ntawm cov tswv cuab yog tsim los siv cov bolts ntxhib, uas txuas cov khoom sib txuas los ntawm shear force. Tag nrho cov pej thuam yog tsim los ntawm lub kaum sab xis steel, txuas steel phaj, thiab bolts. Qee cov khoom ntawm tus kheej, xws li lub hauv paus ntauwd, yog welded ua ke los ntawm ob peb daim hlau los tsim ib chav tsev sib xyaw. Qhov kev tsim no tso cai rau kub-dip galvanization rau kev tiv thaiv corrosion, ua rau kev thauj mus los thiab kev tsim kho kom yooj yim heev.
Cov kab hluav taws xob sib txuas tuaj yeem raug cais raws li lawv cov duab thiab lub hom phiaj. Feem ntau, lawv muab faib ua tsib daim: khob-puab, miv-lub taub hau zoo li tus, upright-puab, cantilever-puab, thiab chim-puab. Raws li lawv txoj haujlwm, lawv tuaj yeem muab faib ua cov tsev nro, cov kab ncaj nraim, lub kaum sab xis, cov theem hloov cov yees (rau kev hloov txoj haujlwm ntawm cov neeg xyuas pib), lub davhlau ya nyob twg, thiab cov yees hla.
Straight-Line Towers: Cov no yog siv rau hauv cov kab ncaj nraim ntawm cov kab sib kis.
Tension Towers: Cov no yog ntsia los tswj qhov nro hauv cov neeg xyuas pib.
Lub kaum sab xis: Cov no tau muab tso rau ntawm cov ntsiab lus uas cov kab sib kis tau hloov cov kev taw qhia.
Hla Ntauwd: Cov pej thuam siab dua tau teeb tsa ntawm ob sab ntawm ib qho khoom hla los xyuas kom meej meej.
Theem-Hloov Ntauwd: Cov no tau teeb tsa ntawm lub sijhawm tsis tu ncua kom sib npaug ntawm qhov impedance ntawm peb tus neeg xyuas pib.
Terminal Towers: Cov no yog nyob ntawm cov ntsiab lus sib txuas ntawm cov kab sib txuas thiab cov chaw nres tsheb.
Hom Raws li cov ntaub ntawv tsim qauv
Cov kab hluav taws xob xa hluav taws xob feem ntau yog tsim los ntawm cov pob zeb muaj zog thiab cov yeeb yaj kiab steel. Lawv kuj tuaj yeem muab faib ua cov tsev txhawb nqa tus kheej thiab cov pej thuam zoo raws li lawv cov qauv kev ruaj ntseg.
Los ntawm cov kab sib txuas uas twb muaj lawm nyob rau hauv Suav teb, nws yog ib qho kev siv steel yees rau qib siab tshaj 110kV, thaum cov pob zeb muaj zog yog feem ntau siv rau qib qis dua 66kV. Guy xov hlau yog ua hauj lwm los sib npaug ntawm lateral loads thiab nro nyob rau hauv lub conductors, txo lub sij hawm khoov ntawm lub hauv paus ntawm tus pej thuam. Qhov kev siv ntawm cov txiv neej cov xov hlau no tuaj yeem txo cov khoom siv thiab txo tus nqi tag nrho ntawm cov kab sib kis. Guyed towers yog tshwj xeeb tshaj yog nyob rau hauv lub tiaj tiaj.
Kev xaiv ntauwd hom thiab cov duab yuav tsum ua raws li cov kev suav uas ua tau raws li qhov xav tau ntawm hluav taws xob thaum xav txog qib voltage, tus naj npawb ntawm circuits, struts, thiab geological tej yam kev mob. Nws yog ib qho tseem ceeb uas yuav tau xaiv ib daim ntawv ntauwd uas tsim nyog rau qhov project tshwj xeeb, thaum kawg xaiv tus tsim uas yog ob qho tib si technically advanced thiab economically tsim nyog los ntawm kev sib piv kev soj ntsuam.
Cov kab sib kis tuaj yeem raug cais raws li lawv txoj hauv kev teeb tsa rau hauv cov kab hluav taws xob siv hluav taws xob, cov kab hluav taws xob xa hluav taws xob, thiab cov roj hluav taws xob hluav taws xob hlau-kab kis kab mob.
Overhead Transmission Lines: Cov no feem ntau yog siv cov tsis muaj insulated liab qab conductors, txhawb los ntawm cov yees rau hauv av, nrog cov conductors raug tshem tawm los ntawm cov yees siv insulators.
Cov kab hluav taws xob xaim hluav taws xob: Cov no feem ntau yog faus hauv av los yog muab tso rau hauv cov kab hluav taws xob lossis cov qhov hauv av, muaj cov cables nrog rau cov khoom siv, cov cuab yeej pabcuam, thiab cov chaw nruab rau ntawm cov cables.
Gas-Insulated Metal-Enclosed Transmission Lines (GIL): Txoj kev no siv cov khoom siv hlau txuas rau kev sib kis, tag nrho nyob rau hauv ib lub plhaub hlau hauv av. Nws ntiav cov pa roj (feem ntau yog SF6 roj) rau kev rwb thaiv tsev, ua kom muaj kev ruaj ntseg thiab kev nyab xeeb thaum kis tau tus mob tam sim no.
Vim yog cov nqi siab ntawm cov cables thiab GIL, feem ntau cov kab sib kis tam sim no siv cov kab hluav taws xob.
Cov kab hluav taws xob kuj tseem tuaj yeem raug cais los ntawm cov theem voltage mus rau hauv high voltage, ntxiv high voltage, thiab ultra-high voltage kab. Nyob rau hauv Suav teb, cov theem voltage rau cov kab sib kis muaj xws li: 35kV, 66kV, 110kV, 220kV, 330kV, 500kV, 750kV, 1000kV, ± 500kV, ± 660kV, ± 800kV, thiab ± .110
Raws li hom kev xa tawm tam sim no, cov kab tuaj yeem muab faib ua AC thiab DC kab:
AC kab:
High Voltage (HV) Kab: 35 ~ 220kV
Extra High Voltage (EHV) Kab: 330 ~ 750kV
Ultra High Voltage (UHV) Kab: Tshaj 750kV
DC kab:
High Voltage (HV) Kab: ± 400kV, ± 500kV
Ultra High Voltage (UHV) Kab: ± 800kV thiab siab dua
Feem ntau, lub peev xwm ntau dua rau kev xa hluav taws xob hluav taws xob, qhov siab dua qhov voltage ntawm kab siv. Siv ultra-high voltage kis tau tus mob yuav txo tau txoj kab poob, txo tus nqi ntawm ib chav tsev kis tau tus mob, txo cov av ua hauj lwm, thiab txhawb ib puag ncig sustainability, yog li ua kom tag nrho cov kev siv ntawm kis tau tus mob corridors thiab muab kev lag luam thiab kev pab cuam tseem ceeb.
Raws li tus naj npawb ntawm cov kab hluav taws xob, cov kab tuaj yeem raug faib ua ib lub voj voog, ob-circuit, lossis ntau lub voj voog.
Raws li qhov kev ncua deb ntawm theem conductors, cov kab tuaj yeem raug categorized li cov kab sib xws lossis cov kab sib txuas.
Post lub sij hawm: Oct-31-2024
