Kev xaiv ntawm mv cable loj yuav tsum xav txog ntau yam, nrog rau kev siv cable, qib rwb thaiv tsev, hom cable, thiab tus neeg xyuas pib hla ntu. cov
Kev siv cov xwm txheej ntawm cov cables: Ua ntej, nws yog ib qho tsim nyog los txiav txim siab qhov kev siv tshwj xeeb ntawm mv cable hauv lub zog hluav taws xob, suav nrog kev xaiv ntawm cable ntsuas voltage / U{{0}} (Um), uas yuav tsum ua raws nrog rau qhov yuav tsum tau ntawm txoj kev nruab nrab grounding nyob rau hauv lub hwj chim system. Piv txwv li, nyob rau hauv ib qho nruab nrab point zoo grounding system, yog hais tias lub mv cable yog siv rau xws li ib tug system, U0 yuav tsum tau coj raws li lub theem voltage tus nqi ntawm lub system. Piv txwv li, 10kV system yuav tsum xaiv 6/10kV cables, thaum lub 35kV system yuav tsum xaiv 21/35kV cables.
Rwb thaiv tsev theem: Qhov kev xaiv ntawm rwb thaiv tsev theem yog nyob ntawm cov hluav taws xob thiab cov neeg kho tshuab kev ntxhov siab ntawm ib puag ncig uas cov cable nyob. Raws li IEC cov qauv, cov tshuab hluav taws xob tau muab faib ua peb pawg: A, B, thiab C, thiab cov txheej txheem rwb thaiv tsev tsim nyog raug xaiv raws li cov kev cai tshwj xeeb ntawm lub kaw lus.
Cable hom: mv cable hom muaj xws li polyvinyl chloride (PVC) insulated cables thiab cross-linked polyethylene (XLPE) insulated cables. Thaum xaiv, yam xws li conductivity, tam sim no nqa peev xwm, mechanical zog, thiab poob yuav tsum raug xam tias yog. Feem ntau, tooj liab tub ntxhais cables yog dav siv vim lawv cov conductivity siab, loj tam sim no nqa peev xwm, zoo mechanical zog, thiab tsawg poob.
Tus neeg xyuas pib hla ntu: Kev xaiv tus neeg xyuas pib hla ntu feem ntau yog ua raws li cov cua sov, ntsuas qhov ntsuas hluav taws xob poob, thiab kev txheeb xyuas thermal stability. Qhov no suav nrog seb lub peev xwm nqa tam sim no ntawm lub cable tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm lub kaw lus, nrog rau kev ua haujlwm nyab xeeb ntawm mv cable nyob rau hauv cov xwm txheej tshwj xeeb.
Hauv cov ntsiab lus, kev xaiv ntawm qhov nruab nrab voltage cable loj yuav tsum muaj kev xav txog ntau yam xws li kev siv cable, qib rwb thaiv tsev, hom cable, thiab tus neeg xyuas pib hla ntu kom ntseeg tau tias kev nyab xeeb thiab txhim khu kev qha ntawm cable thiab ua tau raws li qhov yuav tsum tau ua ntawm kev ua haujlwm. qhov system
