Installation cov lus qhia rau high voltage switchgear
Apr 08, 2022
Lub siab -voltage switchgear yog lub chaw faib hluav taws xob tseem ceeb hauv cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob, thiab nws yog qhov chaw hloov chaw uas xa hluav taws xob rau cov neeg siv. High-voltage switchgear yog ib kauj ruam tseem ceeb hauv kev tsim hluav taws xob engineering. Yog li ntawd, lub installation zoo ntawm switchgear yuav ncaj qha cuam tshuam rau qhov zoo ntawm tag nrho qhov project.
Yog li ntawd, peb yuav tsum tau nruab lub siab -voltage switchgear tsim nyog. Raws li qhov tsim nyog installation, kev ua haujlwm tau muab faib ua cov ntsiab lus hauv qab no:
1) Cov qauv ntawm lub txee: lub plhaub yog lub plhaub hlau thiab muaj qee yam khoom siv zog. Lub Circuit Court breaker, chav busbar thiab chav cable nyob rau hauv lub txee yog muab nrog lub siab tso tawm raws. Kev tso ntawm cov kab thib ob yog qhov zoo nkauj thiab yooj yim los xyuas. Lub installation kab teeb ntawm cov khoom tseem ceeb hauv lub txee yuav tsum yog hlau thiab ntseeg tau hauv av.
2) Creepage nrug: Qhov kev ncua deb ntawm cov rwb thaiv tsev sab nraud ntawm txhua qhov hauv qhov siab -voltage switchgear thiab nws cov khoom txhawb nqa insulating yog 18mm / kV rau cov khoom siv hluav taws xob ntshiab thiab 20mm / kV rau cov organic rwb thaiv tsev.
3) Rwb thaiv tsev nyob deb: siv tsis yog -cov hlau insulating partitions nyob rau hauv lub txee los ntxiv dag zog rau lub rwb thaiv tsev ntawm theem los yog txheeb ze rau hauv av. Siv cov cua sov- lub tes tsho shrinkable kom sov-shrinkable tag nrho siab-voltage nyob conductor, thiab xyuas kom meej tias cov rwb thaiv tsev nyob deb tsis tsawg tshaj li 125 hli.
4) Temperature rise: The temperature rise requirements of each component of the switch cabinet shall comply with the provisions of the national standard GB3906 and GB763 "Heat of AC High Voltage Electrical Appliances During Long-term Operation";
5) Kev hloov pauv hauv av: Txhua yam khoom hauv lub txee yuav tsum tau ua kom zoo thiab ntseeg tau, thiab yuav tsum tau txuas nrog lub tsheb npav hauv av. Lub tsheb thauj neeg mob siab rau hauv av yog muab raws qhov dav ntawm lub txee hloov, thiab lub tsheb npav hauv av yuav tsum tau txuas nrog daim phiaj hauv av.
6) Ua tau raws li tsib - kev tiv thaiv kev cuam tshuam kev ua haujlwm.
