Kodi Mungayike Bwanji Epoxy Resin Through-wall Bushings?

Kukhazikitsa kwama bushing a epoxy resin odutsa pakhomandi ntchito yamagetsi yolondola komanso yolamulidwa bwino, makamaka yogawidwa m'magawo awiri: yokhazikika kale (yoyikidwa nthawi imodzi panthawi yomanga khoma) ndi yokhazikika pambuyo pake (yoyikidwa khoma litapangidwa). Izi ndi njira zonse zokhazikitsira ndi mfundo zazikulu kutengera miyezo yamakampani (monga GB 50149-2010, DL/T 5221-2016).

I. Njira Zonse Zokhazikitsira
1. Kukonzekera musanayike
Kutsimikizira magawo: Tsimikizani kuti mtunda wa magetsi, mphamvu, ndi kukwera kwa bushing ukugwirizana ndi zojambula za kapangidwe kake, ndipo yang'anani ming'alu kapena kuwonongeka kulikonse pa mawonekedwe ake.
Kuyeza ndi malo: Gwiritsani ntchito mzere wa laser kapena choko kuti muwonetse mzere wapakati pa khoma kuti muwonetsetse kuti dzenjelo ndi lolondola komanso kupewa kupsinjika pa busbar kapena chingwe mukakakamizika kudutsa pambuyo pake.
Kukonza mabowo: M'mimba mwake mwa mabowo nthawi zambiri mumakhala wokulirapo 5-10mm kuposa m'mimba mwake wakunja kwa bushing kuti zinthu zotsekera zikonzedwe bwino komanso kudzazidwa. M'mphepete mwa bowo muyeredwe bwino ndipo ma burrs achotsedwe kuti chingwe kapena pamwamba pa bushing zisawonongeke.
2. KudulaKukhazikitsa ndi Kutseka Zoyenera
Njira Yokhazikitsira: Pa epoxy resin bushing yokhala ndi ma flange achitsulo (monga ma flange a aluminiyamu), ma bolt okulitsa kapena ma anchor a mankhwala nthawi zambiri amagwiritsidwa ntchito pokhoma ma flange mbali zonse ziwiri za khoma. Nthawi yokhazikitsira yoyenera ndi ≤ 300mm kuti zitsimikizire kuti bushing siimamasuka panthawi yogwira ntchito.
Kudzaza Chitseko: Iyi ndi sitepe yofunika kwambiri poteteza madzi kuti asalowe m'madzi, kuteteza moto, komanso kupewa makoswe.
Kudzaza Mipata: Mpata wozungulira pakati pa bushing ndi khoma uyenera kudzazidwa ndi putty yosapsa moto kapena sealant yosapsa moto, yokhala ndi makulidwe oyenera a ≥ 20mm kuti zitsimikizire kuti chisindikizocho chili cholimba komanso chopanda mipata.
Chithandizo Chosalowa Madzi: Kuti mulowe pakhoma lakunja kapena m'malo onyowa, kumapeto kwakunja kwa khomatchireiyenera kupendekeka pansi pa 15° – 30°, ndipo chivundikiro chosalowa madzi chiyenera kuyikidwa kuti madzi amvula asabwererenso.
3. Kuyika ndi Kulumikiza Kondakitala
Chitetezo Cholowetsa: Musanaike mabasi kapena zingwe, yang'anani ngati khoma lamkati la bushing ndi losalala. Pa zingwe, ndi bwino kuyika chubu choteteza (monga chubu chopangidwa ndi corrugated) pa gawo lolowetsa kuti m'mbali zakuthwa zisakandane ndi insulation layer.
Kulimbitsa Chingwe: Mukalumikiza terminal, mabotolo ayenera kumangirizidwa ku torque yokhazikika kuti apewe kutentha kwapafupi chifukwa cha kukhudzana kosayenera. Mukalumikiza, yang'anani ngati mphete yotsekerayo ili bwino kuti chinyezi chisalowe.
4. Kuyesa Pambuyo Pokhazikitsa
Mayeso Oteteza Kutenthetsa: Pambuyo poyika, kukana kwa kutenthetsa kuyenera kuyesedwa ndi megohmmeter ya 2500V. Mtengo woyenerera nthawi zambiri umakhala ≥1000MΩ (kapena mogwirizana ndi miyezo inayake).
Mayeso Olimbana ndi Voltage: Pa ma bushings amphamvu kwambiri (monga 10kV ndi kupitirira apo), mayeso olimbana ndi voltage ya ma frequency amphamvu ayenera kuchitidwa (monga, bushing ya 10kV yomwe imadutsa 42kV/5min popanda kuwonongeka).
II. Malangizo Ofunika Kwambiri
Palibe Kugogoda Kolimba: Ngakhale kuti epoxy resin ili ndi mphamvu zambiri, kukana kwake kugwedezeka sikwabwino ngati kwa chitsulo. Pakuyika, ndikoletsedwa mwamphamvu kugunda thupi la bushing mwachindunji ndi nyundo kapena zinthu zina zolimba kuti mupewe ming'alu yaying'ono mu insulation layer yamkati, zomwe zingayambitse kutuluka pang'ono.
Kuteteza ndi Kuyeretsa Chinyezi: Musanayike, pukutani mkati ndi kunja kwa chidebecho ndi mowa wothira madzi kuti muwonetsetse kuti palibe fumbi kapena mafuta. Mukamagwira ntchito munyengo yachinyezi, chitani zinthu zoteteza chinyezi kuti madzi asakhudze magwiridwe antchito a chidebecho.
Chilolezo cha Kukula ndi Kupindika: Pa malo omwe ali ndi malo olumikizirana kapena kutentha kwakukulu, gawo la 10-15mm la kukula ndi kupindika liyenera kusungidwa pakati pa bushing ndi conductor, kapena cholimbitsira rabara chiyenera kuyikidwa kuti chiteteze kusintha kwa bushing chifukwa cha kukula ndi kupindika kwa kutentha.
Zofunikira pa Kuyika Pansi: Ngati chidebecho chili ndi chishango chachitsulo kapena flange yachitsulo, chiyenera kuyikidwa pansi molimba, ndipo kukana kwa kuyika pansi kuyenera kukhala ≤4Ω kuti magetsi achotsedwe.
III. Kusamalira Malo Apadera
Kukhazikitsa Kophatikizidwa: Musanathire khoma la konkire, chitsekocho chiyenera kuyikidwa pamalo ake. Pakadali pano, chisamaliro chapadera chiyenera kuperekedwa pa kulondola kwa malo kuti chitsekocho chisasunthe panthawi yothira. Malekezero onse awiri a chitsekocho ayenera kutuluka kuchokera pakhoma ndi kupitirira 50mm kuti athe kutseka bwino pambuyo pake.
Kukhazikitsa Panja: Ma bushing akunja nthawi zambiri amakhala ndi masiketi oteteza kuipitsa. Mukakhazikitsa, samalani ndi komwe masiketiwo akupita (nthawi zambiri pansi), ndipo nthawi zonse yeretsani dothi pa masiketiwo kuti mupewe kuipitsa chifukwa cha fumbi.
Malangizo Oteteza: Ntchito yokhazikitsa iyenera kuchitika mukakhala kuti mphamvu yachepa, ndipo chenjezo loti "Musatseke" liyenera kumangiriridwa. Kukhazikitsa ma bushings amphamvu kwambiri kumalimbikitsidwa kuti kugwiritsidwe ntchito ndi akatswiri odziwa bwino ntchito zamagetsi.

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