MV Cable, tseem hu ua Medium Voltage Cable, hais txog lub zog hluav taws xob nrog qhov ntsuas hluav taws xob ntawm 6kV thiab 35kV, feem ntau yog siv rau kev xa hluav taws xob nruab nrab hluav taws xob. Feem ntau, cov kev qhia tshwj xeeb tshaj plaws rau cov kab hluav taws xob nruab nrab muaj xws li 11kV tooj liab cable, 15kV nruab nrab voltage cable, thiab 35kV mv cable.
Nyob rau hauv lub installation ntawm hluav taws xob engineering, nruab nrab voltage hlau davhlau ya nyob twg cov pob qij txha thiab nruab nrab cov pob qij txha yog ib qho tseem ceeb ntawm cov khoom siv fais fab hauv kev sib kis thiab hloov cov kab hluav taws xob. Lawv lub luag haujlwm yog txhawm rau cuam tshuam cov hluav taws xob hluav taws xob ntawm qhov chaw tiv thaiv sab nraud thiab txiav cov ntsiab lus ntawm lub cable davhlau ya nyob twg lub taub hau, tiv thaiv MV cable los ntawm kev tawg, nrog rau muab cov rwb thaiv tsev sab hauv thiab sab nraud thiab dej tsis kam.
1. MV fais fab cable conductor kev twb kev txuas: tus neeg xyuas pib kev twb kev txuas yuav tsum tsis tshua muaj tsis kam thiab txaus txhua yam muaj zog, thiab yuav tsum tsis txhob muaj ntse ces kaum ntawm kev twb kev txuas.
2. Internal semiconductor shielding kev kho mob: Raws li koj paub, nruab nrab voltage cable specifications muaj xws li unshielded nruab nrab voltage cables thiab unshielded nruab nrab voltage cables. Rau txhua hom kab nruab nrab hluav taws xob nrog cov txheej thaiv sab hauv, cov txheej thaiv sab hauv ntawm lub raj xa hluav taws xob yuav tsum tau rov qab los thaum ua kev sib koom ua ke. Ib feem ntawm sab hauv semiconductor shielding ntawm nruab nrab voltage cables yuav tsum tau sab laug los xyuas kom meej tias lub internal shielding ntawm cov kev twb kev txuas raj yuav tsum tau kev cob cog rua rau ib leeg, xyuas kom meej lub continuation ntawm lub internal semiconductor thiab tusyees faib lub zog teb ntawm kev sib koom tes.
3. Kev kho ntawm sab nraud semiconductor shielding: Sab nraud semiconductor shielding yog cov khoom siv semiconductor uas ua raws li cov khoom siv hluav taws xob tsis sib xws sab nraum lub cable nruab nrab voltage thiab sib koom ua ke. Zoo li sab hauv semiconductor shielding, nws plays lub luag haujlwm tseem ceeb hauv MV cables thiab pob qij txha. Sab nraud qhov chaw nres nkoj semiconductor yuav tsum zoo huv si thiab zoo ib yam, thiab nws yuav tsum muaj kev hloov pauv nrog rwb thaiv tsev. Ib txoj hlua semiconductor yuav tsum tau ntxiv rau qhov sib koom ua ke los txuas nrog cov txheej txheem semiconductor shielding ntawm MV cable lub cev.
4. Kev kho mob ntawm nruab nrab voltage cables cov tshuaj tiv thaiv lub khob hliav qab: Thaum lub sij hawm tsim kho, cov duab thiab qhov loj ntawm cov tshuaj tiv thaiv lub khob hliav qab yuav tsum yog raws li qhov ua tau, thiab cov peev xwm faib rau tag nrho lub khob hliav qab yuav tsum sib npaug. Thaum ua cov kab txuas txuas txuas txuas txuas, cov cuab yeej txiav tshwj xeeb feem ntau yog siv, lossis me ntsis rhuab nrog cua sov thiab txiav nrog rab riam ceev. Tom qab tsim cov duab yooj yim, nws yuav tsum tau txhuam nrog 2 hli tuab iav, thiab thaum kawg polished nrog sandpaper los ntawm ntxhib mus rau nplua kom txog thaum tus.
5. Hlau shielding thiab grounding kev kho mob: Lub luag haujlwm tseem ceeb ntawm kev tiv thaiv hlau nyob rau hauv nruab nrab voltage fais fab cables thiab connectors yog ua kom luv luv-circuit tam sim no nyob rau hauv MV cables thiab shield electromagnetic cuam tshuam los ntawm cov khoom nyob ze. Hauv kev ua haujlwm, cov hlau thaiv kev tiv thaiv yog xoom lub peev xwm hauv lub xeev zoo hauv av. Thaum MV cable tsis ua haujlwm, nws muaj peev xwm los ua cov hluav taws xob luv luv hauv lub sijhawm luv luv. Cov xaim hauv av yuav tsum tau welded ntseeg tau, thiab cov hlau thaiv thiab armor daim kab xev ntawm MV cable lub cev ntawm ob qho kawg yuav tsum tau welded khov kho. Lub grounding ntawm lub davhlau ya nyob twg yuav tsum txhim khu kev qha.
6. Kev sib khi thiab kev tiv thaiv txhua yam ntawm cov pob qij txha yog qhov lav rau kev ua haujlwm ruaj ntseg ntawm nruab nrab voltage cables. Cov dej noo thiab noo noo yuav tsum tiv thaiv kom tsis txhob nkag mus rau hauv MV underground cable sib koom ua ke. Tsis tas li ntawd, qhov sib koom ua ke tiv thaiv grooves lossis cement thaiv lub thawv yuav tsum tau ua ntawm qhov sib koom ua ke
