Tsawg-Voltage Withdrawable Switchgear

Qhov no cov khoom siv hluav taws xob tsawg-voltage rho tawm yog tsim rau siv hauv cov chaw tsim hluav taws xob, cov chaw tsim hluav taws xob, kev lag luam petrochemical, metallurgical thiab steel nroj tsuag, tsheb thauj mus los thiab lub zog, kev lag luam teeb, chaw tiv thaiv, nrog rau kev lag luam thiab mining lag luam, thaj chaw nyob, thiab siab - nce vaj tsev.
Nws yog siv nyob rau hauv lub tshuab fais fab nrog AC 50-60 Hz thiab ntsuas kev khiav hauj lwm voltage mus txog 660 V rau lub zog hloov dua siab tshiab, faib, thiab tswj. Nws cov kev ua tau zoo tau mus txog qib siab thoob ntiaj teb ntawm xyoo 1990s.
Cov khoom siv no ua raws li cov qauv hauv tebchaws xws li GB 7251.1 (Low-voltage switchgear thiab controlgear assemblies - Part 1) thiab JB/T 9961 (Low-voltage rho switchgear assemblies), thiab kuj ua raws li cov qauv thoob ntiaj teb xws li IEC 439-1 thiab VDE 5660

1. Ambient kub:Tsis siab tshaj +40℃thiab tsis qis dua −5℃. Qhov nruab nrab kub hauv 24 teev yuav tsum tsis pub tshaj +35℃.
2. Atmospheric tej yam kev mob:Cua yuav tsum huv si. kwv yees cov av noo yuav tsum tsis pub tshaj 50% ntawm qhov kub siab tshaj ntawm +40℃; Cov av noo siab dua yog tso cai ntawm qhov kub thiab txias (piv txwv li, mus txog 90% ntawm +20℃). Txawm li cas los xij, condensation tej zaum yuav tshwm sim vim qhov kub thiab txias.
3. Qhov siab:Tsis tshaj 2000 m.
4. Cov pa phem theem:Chav Kawm III.
5.Kev thauj mus los thiab kev cia khoom:Haum rau kev thauj thiab khaws cia ntawm qhov kub ntawm −25℃rau +55 degree, thiab rau lub sijhawm luv (tsis pub tshaj 24 teev) txog rau +70℃. Nyob rau hauv cov xwm txheej no, cov cuab yeej yuav tsum tsis txhob raug kev puas tsuaj irreversible thiab yuav tsum ua hauj lwm ib txwm raws li tus qauv.

Cim npe nrov: low-voltage rho tawm switchgear, Tuam Tshoj qis-voltage rho tawm switchgear manufacturers, lwm tus neeg, Hoobkas