Xov xwm
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kev koom tes nrog Brazil tus neeg siv khoom
Tsis ntev los no, peb lub Hoobkas zoo siab tos txais ib pab pawg neeg tshuaj xyuas los ntawm Brazil.Thaum lub sijhawm tshuaj xyuas, peb tau sib tham nrog peb cov neeg siv khoom, uas tsis yog tsuas yog tsim kom muaj kev sib koom tes zoo, tab sis kuj txhim kho peb txoj kev phooj ywg nrog ib leeg.Thaum mus xyuas peb lub rooj cob qhia khoom siv tes ua, peb tau pom peb cov khoom siv ...Nyeem ntxiv -
mus ncig teb chaws nyab laj
Peb lub tuam txhab tsis ntev los no tau mus ntsib ib tus neeg siv khoom hauv Nyab Laj los pab lawv nrog kev teeb tsa ntawm peb lub xeev-ntawm-tus-kos duab peb theem ntsuas ntsuas lub rooj ntev zaum.Peb txaus siab tshaj tawm tias qhov kev mus ntsib tau ua tiav tiav thiab peb tau muaj kev sib ntsib ua tau zoo thiab zoo siab nrog cov neeg siv khoom.Thaum mus ntsib, peb ua haujlwm c...Nyeem ntxiv -
Kev tsim khoom ntawm cov khoom siv hluav taws xob ua tiav yog qhov tseem ceeb ntawm cov dev...
Nrog Tuam Tshoj maj mam nkag mus rau hauv kev lag luam hauv zej zog, Tuam Tshoj cov cuab yeej tsim khoom lag luam tau ua tiav sai, thiab kev lag luam khoom siv hluav taws xob ua tiav, uas ua lub luag haujlwm tseem ceeb hauv kev tsim khoom lag luam, kuj ua tau zoo heev....Nyeem ntxiv -
Cov txheej txheem kev kho kom haum rau cov khoom siv hluav taws xob tswj kev tswj ...
1. Kev saib xyuas ntawm lub tsheb npav tswj lub tsheb npav (1) Siv lub tshuab nqus tsev nqus tsev vacuum los yog lub tshuab ziab plaub hau uas siv tau los ntxuav cov plua plav ntawm lub tsheb npav kom ntseeg tau tias nws muaj kev tiv thaiv zoo.Cov chaw tsim khoom lag luam siv cov txhuam hniav thiab lwm yam cuab yeej los koom tes hauv kev ntxuav.(2) Ntxuav cov roj av ntawm lub tsheb npav nrog nyob ...Nyeem ntxiv -
Dab tsi yog tsib qhov kev tiv thaiv hluav taws xob ntawm high-voltage switchgear?
Lub tswv yim ntawm tsib kev tiv thaiv: 1. Anti-load qhib thiab kaw disconnector;2. Tiv thaiv kev qhib thiab kaw qhov tsis raug ntawm Circuit Court breaker;3. Anti-load kaw grounding hloov;4. Load kis tau tus mob thaum lub anti-grounding hloov yog kaw;5. Tiv thaiv kom tsis txhob nkag mus rau qhov chaw nyob ua yuam kev.Lub tsib-pre ...Nyeem ntxiv