Dielectric mats: ntau yam, zoo, lub hom phiaj

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Dielectric mats yog siv los ntsuas kev tiv thaiv ntxiv thaum ua haujlwm nrog cov hluav taws xob hluav taws xob siab. Cov khoom siv los ntawm cov khoom tsim los yuav tsum ua kom tau raws li qhov yuav tsum tau ua. Nyob ntawm lub hom phiaj, qhov loj ntawm cov khib nyiab raug xaiv, thiab lub sijhawm khaws cia thaum yuav khoom, uas txwv rau peb xyoos, kuj raug suav nrog.

Lub hom phiaj ntawm cov khoom

Dielectric lev yog cov khoom siv tiv thaiv ntxiv. Cov peev txheej siab tuaj yeem nkag mus rau ib tus neeg siv khoom: hnab looj tes, khau, siv cov cuab yeej ntsuas tam sim no. Hauv qhov chaw uas muaj cov hlau tsis muaj av lossis thaum hauv pem teb ntub dej, cov kev ntsuas no tsuas yog tsim nyog.

Txoj cai rau kev ua haujlwm ntawm kev teeb tsa hluav taws xob nyob rau hauv qhov hluav taws xob mus txog thiab siab dua 1000 V yuav tsum tau siv cov dielectric mats. Thaum ua hauj lwm nrog ib qho ntxiv voltage, corrugated nto ua los ntawm ib tug tshwj xeeb cov ntaub ntawv yog nteg nyob rau hauv lub taw ntawm cov neeg ua hauj lwm. Nws tiv taus tsis yog tsuas yog muaj peev xwm, tab sis kuj rau cov roj, cov neeg kho tshuab hnav.

Kev xav tau rau cov khoom tiv thaiv

Dielectric mats ua tau raws li cov cai ntawm cov ntaub ntawv tswj hwm: GOST4997-75: kuv. Cov khoom ntawm cov khoom muaj peev xwm tiv taus ntau yam dabtsi yog khoov mus. Lub neej txee hauv lub tsev rau khoom yog 3 xyoos, tom qab ntawd cov chaw tsim khoom pom zoo hloov cov khoom siv tiv thaiv. Qhov no yog vim cov khoom ntawm cov roj hmab los hloov cov muaj pes tsawg leeg nyob rau hauv lub zog ntawm huab cua: nws tans, ua brittle, poob nws muaj peev xwm mus insulate nto.

Qhov saum npoo ntawm lev yog grooved thiab tiv thaiv plam, qhov tob tob yog li 1-3mm. Cov khoom muaj peev xwm tiv taus qhov hluav taws xob mus txog 20 kV nrog zaus ntawm 50 Hz. Cov dej xau tam sim no yog ntsuas, uas tsis tshaj 16 ohm A / sq. m. Cov qauv ntawm cov tsos yuav tsum yog ib yam, nws yog dominated los ntawm tsaus tones.

Ntau yam khoom siv tiv thaiv

Cov khoom tau muab faib ua hom hauv qab no:

• Ordinary dielectric lev, tus nqi tua tsawg, kev pabcuam lub neej yog txwv.
• Roj-resistant yog siv nyob rau hauv ib puag ncig nruj. Feem ntau muab tso rau ntawm coasters.

Nyob ntawm daim ntawv thov, lub dielectric lev muaj qhov loj me. Tus nqi nyob ntawm qhov ntev. Cov khoom raug faib los ntawm tus qauv tus nqi:

• Length 500-1000 mm. Lawv tuaj yeem ua tau ntau dua 1000 hli thiab mus txog 8 m. Tus nqi yog los ntawm 100 txog 500 rubles.
• Dav - 500-1200 mm.
• Thickness - 6 ± 1 mm.

Tshwj xeeb dielectric mats raug muag ntawm tus nqi siab dua 500 rubles. Stands, nyob ntawm tus tsim, tuaj yeem raug nqi ntau txhiab rubles. Cov khoom tsim tshwj xeeb tsim (raws li tus neeg siv khoom kos duab) muajkev cog lus them nqi thiab lub sijhawm tsim khoom.

Nyob rau hauv qhov chaw ntub dej, kev siv lub ncoo insulating yog pom zoo. Nws yog ib tug dielectric nto ntawm siab rigidity, muab tso rau ob txhais ceg ntawm ib yam khoom zoo sib xws. Qhov siab ntawm cov khoom pib los ntawm 70 mm. Cov flooring yog nteg tawm ntawm cov ntoo tuav nrog qhov sib txawv ntawm ntau tshaj 30 mm. Rau ob txhais ceg, tshwj xeeb insulators ntawm CH-6 hom yog siv. Kev tiv thaiv ntxiv tuaj yeem muab los ntawm cov roj hmab lev nyob rau saum npoo ntawm qhov muag.

Tshuaj xyuas cov cuab yeej tiv thaiv

Dielectric roj hmab lev thiab cov ntaub thaiv npog yog raug kuaj xyuas raws sij hawm rau kev tawg thiab kev ncaj ncees ntawm cov ntaub ntawv. Ua ntej siv, kev tshuaj xyuas sab nraud ntawm cov mats yog ua tiav, kev kuaj xyuas cov kab nrib pleb hauv cov khoom yog nqa tawm thaum lub sij hawm khoov ntawm cov qauv yas. Cov sawv ntsug raug pom zoo kom raug tshuaj xyuas seb muaj cov chips ntawm ob txhais ceg thiab txaj pw.

Yog tias pom muaj qhov tsis xws luag, cov ntaub pua chaw, cov ntaub pua tsev thiab lwm yam khoom siv tiv thaiv yuav tsum tau hloov. Yog tias qhov chaw tsis txav mus, ces qhov kev kuaj mob tau ua tsawg kawg ib zaug txhua 3 xyoos. Yog tias qhov tsis xws luag tuaj yeem raug tshem tawm, ces nws yuav tsum tau kuaj lub dielectric rau kev tawg raws li cov qauv.

Txhawm rau kom tsis txhob hnav cov roj hmab thaum ntxov, nws raug nquahu kom ua raws li cov cai hauv qab no rau kev siv cov khoom:

• Mat cia yog nqa ntawm qhov kub ntawm 20-25 degrees.
• Ua ntej siv cov txheej uas tau coj los ntawm cov Frost, koj yuav tsum cia lawv sov so hauv chav sov li ib hnub.
• Oiled nto tam sim ntawdntxuav tsis tas siv cov tshuaj cawv kom cov roj hmab tsis tawv.
• Cov neeg ua haujlwm yuav tsum tsis txhob siv cov ntaub ntub dej ntawm kev ua haujlwm.
• Hauv chav txias, siv lub tshuab tshwj xeeb dielectric lev, hnab looj tes, sawv ntsug. Muaj cov khoom uas tuaj yeem tiv taus qhov kub ntawm -50 txog +80 degrees.

Kev tiv thaiv ntxiv

Thaum ua haujlwm hauv cov khoom siv hluav taws xob siab nrog lub tshuab hluav taws xob, cov khoom siv insulating yuav tsum:

• hnab looj tes tsis yog siv rau kev ntsuas nkaus xwb, cov vuam siv los cais tawm hauv av;
• khau, khau khiab roj hmab, galoshes;
• insulating rods rau ntsuas hluav taws xob tsis;
• daim ntaub thaiv npog yuav tsum tau tiv thaiv qhov muag;
• kaus mom hlau yog hais txog dielectrics;
• khoom siv tshwj xeeb hluav taws xob arc;
• thaum lub sijhawm PPR, cov khoom nqa tam sim no nyob hauv thaj chaw ua haujlwm tau them nrog roj hmab dielectrics.

Cov neeg ua haujlwm pabcuam kev teeb tsa hluav taws xob siab tau muab cov khoom tshwj xeeb kub-tiv taus. Txhawm rau ua haujlwm ntawm qhov siab, cov ntaiv thiab cov ntaiv nrog dielectric inserts yog siv.