Control cables yog Nqe lus piav qhia, hom thiab daim ntawv thov

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Hluav taws xob tes hauj lwm thiab cov cuab yeej siv rau lawv yog tsim los ntawm ntau theem hauv paus, kev sib txuas lus sib txuas nyob rau hauv uas tau muab cov cables ntawm ntau hom. Qhov no yog cov khoom siv hluav taws xob uas tuaj yeem ua cov haujlwm ntawm kev faib khoom, kev sib kis thiab kev thauj mus los tseem ceeb ntawm tam sim no. Tswj cov kab hluav taws xob nyob hauv ib qho chaw tshwj xeeb hauv ntu no. Qhov no yog ib qho chaw thoob ntiaj teb rau kev thauj cov hluav taws xob tam sim no nyob rau hauv qhov hluav taws xob ntawm 380 txog 1000 V, uas yog siv tsis yog rau kev pabcuam fais fab, tab sis muab kev hloov nruab nrab ntawm cov nroj tsuag hluav taws xob.

Control cable device

Cov khoom lag luam yog tsim los ntawm ntau txheej txheej txheej txheej txheej txheem thiab cov tub ntxhais ncaj qha cuam tshuam rau kev xa tawm tam sim no. Cov qauv yooj yim tshaj plaws ntawm xws li cable tuaj yeem sawv cev raws li hauv qab no:

• Cov khoom siv hluav taws xob.
• Insulating hauv ob sab phlucore nto.
• Cov ntaub thaiv npog sab nraud.

Qhov chaw ua haujlwm feem ntau txiav txim siab qhov yuav tsum tau ua rau cov hlua sab nraud ntawm cov hlau. Piv txwv li, ib tug shielded tswj cable, ntxiv rau cov txheej txheem kev tiv thaiv txhua yam, muaj rwb thaiv tsev uas tiv thaiv cov tub ntxhais los ntawm electromagnetic thiab hluav taws xob cuam tshuam. Shielding yog ib qho ntawm cov txheej txheem nyuaj tshaj plaws ntawm kev tiv thaiv sab nraud ntawm cov khoom siv tam sim no, uas sawv cev rau cov txheej txheem hlau nrog qee yam khoom siv rau kev ua haujlwm ntawm lub zog hluav taws xob. Cov txheej txheem txheej txheem kuj tseem siv tau rau qib ntawm cov muab tub lim thiab cov txheej txheej, tiv thaiv cov tub ntxhais cable los ntawm kev cuam tshuam lub cev, ya raws, hluav taws kub, plua plav, thiab lwm yam. Rau qhov no, ntau yam khoom sib txawv yog siv los ntawm polyvinyl chloride nrog tib yam. hlau rau mica-muaj tapes.

Cable conductors

Txawm li cas los xij, lub luag haujlwm tseem ceeb ntawm txhua lub cable yog nws cov tub ntxhais. Nyob rau hauv cov ntaub ntawv no, tooj liab los yog txhuas (xws li nws tooj liab-plated version) yog siv los ua cov conductive hlau. Raws li kev tsim qauv, nws feem ntau yog ib tus neeg xyuas pib lossis ob peb lub xov hlau nyias nyias uas muaj peev xwm ua kom muaj kev nyab xeeb khoov cov tswj cable. Ib hom conductors yog siv nyob rau hauv chaw nres tsheb fais fab nroj tsuag, qhov uas tsis tas yuav khoov thiab twists. Kev sib tw-xaim tsim, tig mus, yog siv rau hauv cov khoom siv thiab cov chaw ua haujlwm uas muaj cov khoom hnyav ntawm cov xaim. Piv txwv li, qhov notej zaum yuav yog mobile hluav taws xob installation, generator teeb los yog roj teeb.

Cov khoom siv ntawm kev tsim khoom kuj txiav txim siab qhov sib txawv ntawm txoj hauv kev rau kev siv cov xov hlau. Raws li twb tau hais lawm, feem ntau yog tooj liab lossis txhuas yog siv rau cov khoom siv hluav taws xob. Cov khoom siv tooj liab feem ntau siv hauv 220 kV substations. Hauv txoj cai, cov khoom siv no yog qhov tsim nyog tshaj plaws rau kev siv thoob ntiaj teb hauv kev teeb tsa hluav taws xob. Aluminium feem ntau siv vim nws tus nqi pheej yig dua qhov uas tsis muaj kev xav tau siab rau kev ntseeg siab thiab qhov tseeb ntawm qhov system.

Kev faib tawm tseem ceeb ntawm kev tswj hwm cable

Muaj ntau qhov ntsuas uas tswj cov kab hluav taws xob sib cais. Tshwj xeeb, cov kev faib tawm tseem ceeb suav nrog:

• Khoom siv ntawm hlau puag.
• Cov khoom siv rwb thaiv tsev.
• Wire shape.
• Section yam ntxwv.
• Cov khoom tiv thaiv npog.

Kev hloov kho tshwj xeeb suav nrog cov khoom siv armored, dielectric thiab cov xaim dej tsis muaj dej tsim los rau kev ua haujlwm hnyav nrog ib puag ncig hnyav.

Kev faib tawm los ntawm qhov chaw mob

Cables kuj tau muab faib raws li cov kev siv ntawm kev siv sab nraud ntawm cov khoom siv thauj khoom:

• Sab hauv tsev, hauv trenches thiab channel yam tsis muaj kev cuam tshuam ntawm lub zog uas txhawb nqa kev ncab. Kev tiv thaiv yog tsim los ntawm winding ntawm steel tapes nrog anti-corrosion txheej. Qhov no yog ib tug raug tswj cable KVVGng, uas yog siv nyob rau hauv qhov chaw uas tsis muabmuaj zog mechanical cuam tshuam, nrog rau hluav taws kub.
• Nyob rau hauv trench thiab av tsis muaj zog sab nraud tensile loj. Cov txheej armor yog tsim los ntawm ob daim kab xev steel nrog ib lub hau npog ntxiv ntawm PVC compound.
• Nyob rau hauv av thiab cov channel uas muaj zog tensile siab. Cov armor yog tsim los ntawm steel hlau rods coated nrog ib tug zinc txheej thiab PVC-compound cover.

Txhim kho cable

Tam sim no nyob rau hauv cov txheej txheem ntawm nteg, ib tug tshwj xeeb hlau ntaub qhwv nrog ib tug corrugated raj yog muab los tiv thaiv lub cable sheath. Nyob rau sab nraub qaum, cov xaim kaw ntawm cov khoom xa tawm, cov thawv hluav taws xob thiab cov thawv. Raws li txoj cai, cov khoom siv hluav taws xob teeb tsa ua haujlwm ntawm 380 kV. Los ntawm cov khoom siv hluav taws xob, lub tooj liab tswj cable yog nteg los ntawm cov chaw tiv thaiv thiab cov tais rau lub ntsiab hluav taws xob ntawm cov neeg siv khoom. Terminal lub thawv thiab cov khoom hloov pauv tau cim nrog tus cwj mem tshwj xeeb qhia txog cov yam ntxwv ntawm cov khoom siv hluav taws xob thiab cov txheej txheej sab nrauv ntawm lub sheath.

Txuas cable

Muaj ntau txoj hauv kev los txuas lub voj rau cov khoom siv. Nyob ntawm qhov chaw ntawm qhov chaw, cov kev teeb tsa hauv qab no yuav raug siv:

• Txoj kab tawm ntawm txoj kab tseem ceeb nrog ib ceg ua ob kwj.
• Cov kab hluav taws xob tau faib rau sab xis thiab sab laug ntawm lub vaj huam sib luag hluav taws xob rau kev faib rau ntau lub voj voog.
• zaub pub dawb thoob plawsthaj chaw ua haujlwm.
• Point-to-point kev twb kev txuas yog ua los ntawm lub davhlau ya nyob twg clamps.

Nws yog ib qho tseem ceeb tsis txhob hnov qab tias cov kab hluav taws xob tswj yog cov khoom siv nrog ntau theem, yog li cov cuab yeej tshwj xeeb yuav tsum tau siv thaum txiav. Nco ntsoov siv cov ntsuas ntsuas xws li multimeter rau kev tswj hwm kev sib txuas ntawm txhua theem ntawm kev sib sau ua ke.

Qhov kub thiab lub teeb ntawm cable

Thaum lub sijhawm ntws ntawm cov hluav taws xob tam sim no los ntawm cov neeg siv hluav taws xob ntawm cov xaim, overheating lossis hypothermia tuaj yeem tshwm sim, uas yuav cuam tshuam rau kev ua haujlwm ntawm cable thiab cov khoom ntawm nws cov qauv tsim. Qhov ntsuas kub yuav tsum tau muab xam ua ntej thiab xav txog thaum muaj kev tiv thaiv zoo. Piv txwv li, nyob rau hauv tej yam kev mob uas tsis muaj kub, nws yog pom zoo kom siv yas rwb thaiv tsev ntawm kev tswj cables. Qhov no yuav tiv thaiv kev tsim ntawm cov kab nrib pleb thiab tawg ntawm tus neeg xyuas pib hauv cov xwm txheej frosty. Piv txwv li, cov pa polyethylene sheath poob nws qhov yooj yim ntawm sub-zero kub thiab feem ntau tawg, poob qhov tsim nyog ua haujlwm.

Raws li raug lub teeb, raug rau lub hnub kuj yuav ua rau lub cable tswj. Rau kev tiv thaiv zoo thaum siv cov xaim tawm sab nraum zoov, cov ntaub thaiv npog nrog nyias nyias lossis txhuas txheej yog tsim nyog.

Control cable nkawm

Kev tshem tawm thiab tiv thaiv me me thiab kev puas tsuaj raucable kab yog qhov yuav tsum tau ua ua ntej rau kev ua haujlwm ruaj khov ntawm cov khoom siv hluav taws xob. Nyob rau tib lub sijhawm, cov neeg ua haujlwm saib xyuas xyuas thiab ua qhov ntsuas hluav taws xob ntawm kev khiav, hloov cov txuas tam sim, kho cov ntsiab lus thiab lub plhaub tiv thaiv. Raws li lub sijhawm teem sijhawm thiab daim ntawv qhia thev naus laus zis, kev ntxuav thiab rov txuas ntawm cov kab hluav taws xob tswj tau ua tiav ntawm qee lub sijhawm.

Cov kab hluav taws xob hloov tau raug kuaj xyuas nyias ntawm qhov khoov thiab cov pob qij txha. Txawm tias muaj cov khoom siv sab nraud, cov khoom siv hluav taws xob zoo li no tuaj yeem raug puas los ntawm cov cores, yog li ntawd, yuav tsum muaj kev soj ntsuam ntawm cov qauv sab hauv los ntawm kev sim tsis muaj kev puas tsuaj. Lub sij hawm ncua sij hawm ntawm kev saib xyuas kev ua ub no tuaj yeem sib txawv ntawm ob peb lub hlis mus rau 2-5 xyoos.

Zaj lus

Cables ntawm hom no tau siv dav vim lawv muaj ntau yam ntawm lawv lub peev xwm los siv rau ntau yam kev ua haujlwm. Qhov no tsis yog lub hom phiaj ntawm kev xa tawm tam sim no nyob rau qhov ntev vim tus nqi siab thiab kev siv thev naus laus zis ntawm kev teeb tsa. Txawm li cas los xij, rau cov chaw siv hluav taws xob tseem ceeb, cov kab hluav taws xob tswj yog qhov kev daws teeb meem zoo tshaj plaws. Kev loj hlob ntawm cov kab hluav taws xob zoo li no kuj tau yooj yim los ntawm nws ib puag ncig kev nyab xeeb. Txawm hais tias nyob rau hauv ib puag ncig hnyav, cov kab hluav taws xob tswj tsis tso tawm cov khoom phom sij rau kev noj qab haus huv thiab tsis muaj kev phom sij rau ib puag ncig. Nyob rau hauv cov nqe lus ntawm kev tuav pov hwm zoo ntawm ib tug ncaj qha conductive core, dua, ntau yuav nyob ntawm seb qhov zoo ntawm cov khaubncaws sab nraud povtseg ntawm cov txheej.rwb thaiv tsev thiab lub ntsiab hlau npog ntawm qhov chaw installation.