Nrog rau kev txhim kho txuas ntxiv ntawm kuv lub teb chaws ultra-high voltage (UHV) thiab kev tsim kho vaj huam sib luag ntse, tshwj xeeb tshaj yog nyob rau hauv kev faib khoom siv hluav taws xob, kev lag luam yav tom ntej rau kuv lub teb chaws lub zog xa hluav taws xob thiab cov khoom siv hluav taws xob tsim kev lag luam yuav ntsib plaub yam tseem ceeb: kev txawj ntse, kev sib koom ua ke, ua tiav cov cuab yeej siv, thiab kev nthuav dav txawv teb chaws. Raws li lub hauv paus ntawm cov khoom siv hluav taws xob hauv lub network, cov khoom siv hluav taws xob faib hluav taws xob yuav tsum ntxiv dag zog rau kev tsim kho kev lag luam, txhim kho lawv txoj kev muaj peev xwm tsim kho tshiab, tsim lawv tus kheej lub npe, thiab txhawb kev lag luam thoob ntiaj teb.
Nyob rau hauv 2012, muaj 1,021 tuam txhab uas muag nyob rau hauv kuv lub teb chaws kev faib transformer kev lag luam. Raws li kev tsim qauv, ultra-high voltage (UHV) thiab ntxiv-high voltage (EHV) cov khoom muaj ntau dua cov khoom thaiv vim yog cov nqi tsim khoom ntau dua, cov peev txheej lag luam loj dua, thiab cov ntsiab lus thev naus laus zis ntau dua, ua rau muaj kev lag luam tseem ceeb. Hloov pauv, kev lag luam concentration rau cov khoom nruab nrab thiab cov khoom siv hluav taws xob tsawg tsawg, thiab kev loj hlob ntawm cov khoom muag yuav maj mam qeeb.
Lub Xeev Grid Corporation ntawm Tuam Tshoj thiab Tuam Tshoj Southern Power Grid Company tau qhia tias muaj kev txaus siab ntxiv rau kev tsim cov kev faib tawm thiab cov phiaj xwm ntse. Ntawm nws qhov nruab nrab- xyoo lub rooj sib tham hauv 2013, Lub Xeev Grid Corporation ntawm Tuam Tshoj tau hais txog kev tsim kho kev faib khoom sib faib ua "qhov tseem ceeb tshaj plaws," thiab nws cov phiaj xwm 8- xyoo, 3 trillion yuan peev txheej npaj muab nyiaj txiag txaus rau kev tsim kho vaj huam sib luag thiab kev tsim kho network. Tuam Tshoj Southern Power Grid Company npaj tag nrho cov peev txheej ntawm 227.9 billion yuan hauv kev tsim kho hauv nroog nyob deb nroog thaum lub sijhawm 12th Tsib Xyoo Npaj. Raws li qhov no, kev nqis peev hauv kev sib koom ua lag luam nyob deb nroog los ntawm 2013 txog 2015 yuav ncav cuag 150.5 billion yuan, qhov nruab nrab ntawm 50 billion yuan ib xyoo, sawv cev rau 33.3% nce piv rau xyoo 2012. Qhov kev loj hlob ntawm kev lag luam hauv nroog faib network yuav ntau dua.
