Raws li lub Kaum Ob Hlis 7, peb ± 800 kV UHV DC kab, Baihetan-Zhejiang, Xiluodu Left Bank-Jinhua, thiab Lingzhou-Shaoxing, tau xa tag nrho ntau tshaj 600 billion kilowatt-teev hluav taws xob rau Zhejiang. Qhov kev ua tiav loj no yog cais tsis tau los ntawm kev txhawb nqa thiab lav ntawm cov khoom siv hluav taws xob, xws li kev sib cais cov keyboards, lub tshuab nqus tsev vacuum breakers, transformers, hloov khoom, tso tawm fuses thiab xob laim ntes. Cov cuab yeej no ua lub luag haujlwm tseem ceeb hauv cov txheej txheem xa hluav taws xob, ua kom muaj kev nyab xeeb, ruaj khov thiab ua haujlwm tau zoo.
Kev rho tawm cov keyboards thiab lub tshuab nqus tsev vacuum breakers ua lub luag haujlwm tseem ceeb hauv lub zog hluav taws xob. Lawv tuaj yeem ua kom ntseeg tau tias kev txiav tawm thiab hloov pauv ntawm qhov tam sim no, yog li ua kom muaj kev nyab xeeb ntawm lub zog hluav taws xob. Transformers yog cov cuab yeej tseem ceeb rau kev hloov hluav taws xob. Los ntawm cov kev cai ntawm transformers, ruaj khov kis tau tus mob ntawm lub hwj chim yuav ua tau tiav. Switchgear thiab drop-out fuses yog cov khoom siv tiv thaiv hauv lub zog. Lawv tuaj yeem tiv thaiv qhov tsis raug xws li tam sim no overload thiab luv luv Circuit Court. Cov neeg tua hluav taws xob tuaj yeem tiv thaiv xob laim thiab lwm yam kev puas tsuaj ntuj tsim los ntawm kev puas tsuaj rau lub zog.
Tsis tas li ntawd, txhawm rau txhawm rau ua kom muaj kev nyab xeeb ntawm cov hlab ntsha ntawm lub zog, State Grid Zhejiang Electric Power Co., Ltd. tau khaws cov ntaub ntawv txhawb nqa ua ntej thiab ua haujlwm ntawm kev kwv yees qib roj rau cov khoom siv roj xws li transformers. Nyob rau tib lub sijhawm, tus naj npawb ntawm kev tshuaj xyuas tau nce ntxiv raws li cov xwm txheej tiag tiag los xyuas kom meej tias UHV converter chaw nres tsheb yeej ib txwm ua haujlwm zoo thaum lub caij ntuj no siab kawg.
Nyob rau hauv luv luv, cov khoom siv xws li kev rho tawm cov hloov pauv, lub tshuab nqus tsev vacuum breakers, transformers, hloov cov khoom, tso tawm fuses thiab cov neeg ntes ua lub luag haujlwm tsis tuaj yeem hloov pauv hauv lub zog hluav taws xob, muab kev lav zoo rau kev nyab xeeb, kev ruaj ntseg thiab kev xa hluav taws xob zoo. Nyob rau tib lub sijhawm, State Grid Zhejiang Electric Power Co., Ltd. txoj kev saib xyuas thiab tshuaj xyuas ua haujlwm tau zoo kuj tau ua kom muaj kev nyab xeeb ntawm UHV DC kab, muab kev txhawb nqa zoo rau Zhejiang txoj kev lag luam thiab kev sib raug zoo thiab kev ruaj ntseg ntawm lub zog.