Ungazifaka Kanjani Izitsha Zokubumba Ezisebenzisa I-Epoxy Resin?

Ukufakwa kweizikhonkwane ze-epoxy resin ezidlula odongenikuwukusebenza kukagesi okuqondile nokulawulwa ngokuqinile, okuhlukaniswe kakhulu ngezimo ezimbili: okufakwe kusengaphambili (okufakwe ngesikhathi esisodwa ngesikhathi sokwakhiwa kodonga) kanye nokufakwe ngemuva (okufakwe ngemva kokwakhiwa kodonga). Okulandelayo yizinyathelo zokufaka ezijwayelekile kanye namaphuzu abalulekile asekelwe ezindinganisweni zemboni (njenge-GB 50149-2010, DL/T 5221-2016).

I. Izinyathelo Zokufaka Ezijwayelekile
1. Ukulungiselela Ngaphambi Kokufaka
Ukuqinisekiswa kwepharamitha: Qinisekisa ukuthi i-voltage elinganisiwe, i-current, kanye nebanga lokuhamba kwe-bushing kuyahambisana nemidwebo yomklamo, bese uhlola noma yimiphi imifantu noma umonakalo ekubukekeni.
Ukulinganisa kanye nokuma: Sebenzisa umugqa we-laser noma we-chalk ukuze ubhale umugqa ophakathi wodonga ukuqinisekisa ukunemba kwendawo yembobo futhi ugweme ukucindezeleka kubha yebhasi noma ikhebula uma kuphoqeleka ukuthi kudlule kamuva.
Ukucubungula imigodi: Ububanzi bemigodi buvame ukuba bukhulu ngamamilimitha angu-5-10 kunobubanzi bangaphandle be-bushing ukuze kuvunyelwe ukulungiswa nokugcwaliswa kwezinto zokuvala. Unqenqema lwembobo kufanele lushelelezwe futhi kususwe ama-burrs ukuze kuvinjelwe umonakalo kukhebula noma ebusweni be-bushing.
2. Ukuthungwa kwezihlahlaUkufakwa Nokuvalwa Kokufaka
Indlela Yokulungisa: Ukuze kusetshenziswe i-epoxy resin bushing ene-flanges zensimbi (njenge-aluminium alloy flanges), ama-expansion bolts noma ama-chemical anchors ngokuvamile asetshenziselwa ukulungisa ama-flanges ezinhlangothini zombili zodonga. Isikhathi sokulungisa esinconywayo singu-≤ 300mm ukuqinisekisa ukuthi i-bushing ayikhululeki ngesikhathi sokudlidliza kokusebenza.
Ukugcwalisa Ukuvala: Lesi yisinyathelo esibalulekile sokuvimbela amanzi ukuthi angangeni, ukuvimbela umlilo, kanye nokuvimbela amagundane.
Ukugcwaliswa Kwezikhala: Isikhala esiphakathi kwe-bushing nodonga kufanele sigcwaliswe nge-putty engashi noma i-sealant engashi, enobukhulu obunconywayo obungu-≥ 20mm ukuqinisekisa ukuvalwa okuqinile nokungenazikhala.
Ukwelashwa Okungangeni Manzi: Ukuze kungene odongeni ngaphandle noma ezindaweni ezimanzi, ingxenye engaphandle yeukugobakufanele ithambekele phansi ku-15° – 30°, futhi kufanele kufakwe isembozo esingangenwa amanzi ukuze kuvinjelwe amanzi emvula ukuthi angabuyeli emuva.
3. Ukufakwa Nokuxhumeka Komqhubi
Ukuvikelwa Kokufakwa: Ngaphambi kokufaka amabha noma izintambo, hlola ukuthi udonga lwangaphakathi lwe-bushing lubushelelezi yini. Kumakhebula, kunconywa ukufaka ipayipi elivikelayo (njengepayipi elihlanganisiwe) engxenyeni yokufaka ukuze uvimbele imiphetho ebukhali ekuklwebheni ungqimba lokufaka.
Ukuqinisa Uxhumano: Uma uxhuma i-terminal, amabhawodi kufanele aqiniswe ku-torque ejwayelekile ukuze kugwenywe ukushisa kwendawo ngenxa yokuxhumana okungekuhle. Ngemva kokuxhuma, hlola ukuthi indandatho yokuvala iphelele yini ukuze kuvinjelwe umswakama ukuthi ungangeni.
4. Ukuhlolwa Kwangemva Kokufakwa
Ukuhlolwa Kokushisisa: Ngemva kokufakwa, ukumelana kokushisisa kumele kuhlolwe nge-megohmmeter engu-2500V. Inani elifanelekile livame ukuba yi-≥1000MΩ (noma ngokuhambisana nezindinganiso ezithile).
Ukuhlolwa Kokumelana Ne-Voltage: Kuma-bushings ane-voltage ephezulu (njenge-10kV nangaphezulu), kufanele kwenziwe ukuhlolwa kwe-voltage ebekezelela imvamisa yamandla (isb., i-bushing ye-10kV ebhekene ne-42kV/5min ngaphandle kokuphuka).
II. Izinyathelo Zokuqapha Eziyinhloko
Akukho Ukungqongqoza Okuqinile: Nakuba i-epoxy resin inamandla aphezulu, ukumelana kwayo nokushayisana akukuhle njengokwensimbi. Ngesikhathi sokufakwa, akuvunyelwe ngokuphelele ukushaya ngqo umzimba we-bushing ngesando noma ezinye izinto eziqinile ukuvimbela ukuqhekeka okuncane kungqimba lokufakwa kwangaphakathi, okungaholela ekukhishweni okuyingxenye.
Ukuvimbela Nokuhlanza Umswakama: Ngaphambi kokufaka, sula ubuso bangaphakathi nangaphandle be-bushing ngotshwala obungenamanzi ukuqinisekisa ukuthi akukho uthuli noma uwoyela. Uma usebenza esimweni sezulu esinomswakama, thatha izinyathelo ezivikela umswakama ukuvimbela ukuminyana komswakama ukuthi kungathinti ukusebenza kokushisa.
Imvume Yokukhulisa Nokufinyela: Ezindaweni ezinezihlanganisi zokunweba noma umehluko omkhulu wokushisa, kufanele kugcinwe isibonelelo sokunweba nokunciphisa esingu-10-15mm phakathi kwe-bushing kanye nomqhubi, noma kufanele kufakwe i-compensator yerabha ukuvimbela ukuguquka kwe-bushing ngenxa yokukhula nokuncipha kokushisa.
Izidingo Zokumisa Isisekelo: Uma isisekelo sinesivikelo sensimbi noma i-flange yensimbi, kumele simiswe ngokwethembeka, futhi ukumelana nokumisa kufanele kube yi-≤4Ω ukuze kuqedwe i-voltage ebangelwayo.
III. Ukuphathwa Kwezigcawu Okukhethekile
Ukufakwa Okufakiwe: Ngaphambi kokuthulula udonga lwekhonkrithi, i-bushing idinga ukuthululwa endaweni yayo. Ngalesi sikhathi, kufanele kunakwe ngokukhethekile ukunemba kokubekwa kwayo ukuze kuvinjelwe i-bushing ukuthi inganyakazi ngesikhathi senqubo yokuthulula. Zombili iziphetho ze-bushing kufanele ziphume odongeni ngaphezu kwama-50mm ukuze kube lula ukwelashwa kokuvala esigabeni esilandelayo.
Ukufakwa Kwangaphandle: Ama-bushing angaphandle avame ukuba neziketi ezilwa nokungcola. Ngesikhathi sokufakwa, naka indlela iziketi eziya ngayo (ngokuvamile phansi), futhi uhlanze njalo ukungcola eziketini ukuze uvimbele ukunqwabelana kothuli ngenxa yokunqwabelana kothuli.
Amathiphu Okuphepha: Umsebenzi wokufaka kumele wenziwe esimweni sokuphelelwa amandla, futhi kufanele kuphanyekwe uphawu lwesixwayiso esithi “Ungavali”. Kunconywa ukufakwa kwama-bushings ane-voltage ephezulu ukuze kusetshenziswe ochwepheshe bakagesi abangochwepheshe.

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