Yadda ake Shigar da Epoxy Resin Ta Bango Bushings?

Shigarwa nabututun epoxy ta bangoaiki ne na lantarki mai inganci kuma mai tsari, wanda aka raba shi zuwa yanayi biyu: an riga an saka shi (an saka shi a lokaci guda yayin gina bango) da kuma bayan an saka shi (an saka shi bayan an kafa bango). Ga matakan shigarwa na gaba ɗaya da mahimman abubuwan da suka dogara da ƙa'idodin masana'antu (kamar GB 50149-2010, DL/T 5221-2016).

I. Matakan Shigarwa na Gabaɗaya
1. Shiri kafin shigarwa
Tabbatar da siga: Tabbatar da cewa ƙarfin lantarki, wutar lantarki, da nisan da ke rarrafe na bushing sun yi daidai da zane-zanen ƙira, kuma duba ko akwai tsagewa ko lalacewa a kan bayyanar.
Aunawa da sanyawa: Yi amfani da matakin laser ko layin alli don yin alama a tsakiyar bangon don tabbatar da daidaiton wurin ramin da kuma guje wa damuwa a kan sandar bas ko kebul idan an tilasta shi ya wuce daga baya.
Sarrafa ramin: Girman ramin yawanci ya fi girman diamita na waje na bushing ɗin girma 5-10mm don ba da damar daidaitawa da cike kayan rufewa. Ya kamata a sassauta gefen ramin kuma a cire burrs don hana lalacewar kebul ko saman bushing.
2. BushingDaidaitawa da Hatimi
Hanyar Gyara: Ga bututun epoxy resin da aka yi da flanges na ƙarfe (kamar flanges na aluminum), ana amfani da bolts na faɗaɗawa ko ankare sinadarai don gyara flanges ɗin a ɓangarorin biyu na bango. Tazarar da aka ba da shawarar a gyara ita ce ≤ 300mm don tabbatar da cewa bushing ɗin bai sassauta ba yayin girgizar aiki.
Cikowa da Rufewa: Wannan muhimmin mataki ne na hana ruwa shiga, hana wuta, da kuma hana beraye shiga.
Cika Gibin Gibin: Ya kamata a cika gibin da ke tsakanin bushing da bango da putty mai hana wuta ko kuma abin rufe fuska mai hana wuta, tare da shawarar a cika shi da kauri na ≥ 20mm don tabbatar da hatimi mai kauri da rashin gibin.
Maganin hana ruwa shiga bango: Don shigar bango a waje ko a cikin yanayi mai danshi, ƙarshen waje nabushingya kamata a karkata zuwa ƙasa a 15° - 30°, kuma a sanya murfin hana ruwa gudu don hana ruwan sama dawowa.
3. Shigar da Mai Gudanarwa da Haɗawa
Kariyar Shigarwa: Kafin saka sandunan bus ko kebul, duba ko bangon ciki na bushing ɗin yana da santsi. Ga kebul, ana ba da shawarar a sanya bututun kariya (kamar bututun corrugated) a sashin sakawa don hana gefuna masu kaifi su karce layin rufin.
Matse Haɗin Kai: Lokacin haɗa tashar, ya kamata a matse ƙusoshin zuwa matsakaicin ƙarfin juyi don guje wa dumama gida saboda rashin kyawun hulɗa. Bayan haɗawa, a duba ko zoben rufewa yana nan don hana danshi shiga.
4. Gwaji Bayan Shigarwa
Gwajin Rufewa: Bayan shigarwa, dole ne a gwada juriyar rufi da na'urar aunawa mai ƙarfin 2500V. Matsakaicin ƙimar da aka ƙayyade yawanci shine ≥1000MΩ (ko kuma daidai da takamaiman ƙa'idodi).
Gwajin Jure Wutar Lantarki: Ga bushings masu ƙarfin lantarki mai yawa (kamar 10kV da sama), ya kamata a gudanar da gwajin ƙarfin lantarki mai jure mitar wuta (misali, bushing 10kV da aka yi wa 42kV/minti 5 ba tare da lalacewa ba).
II. Muhimman Kariya
Babu Ƙwaƙwalwa Mai Tauri: Duk da cewa resin epoxy yana da ƙarfi sosai, juriyarsa ga tasirinsa ba ta yi kyau kamar ta ƙarfe ba. A lokacin shigarwa, an haramta shi sosai a buga jikin bushing kai tsaye da guduma ko wasu abubuwa masu tauri don hana ƙananan fasawa a cikin layin rufin ciki, wanda zai iya haifar da zubar da wani ɓangare.
Rigakafi da Tsaftacewa da Danshi: Kafin a saka, a goge saman ciki da waje na bushing ɗin da barasa mai hana ruwa shiga domin tabbatar da babu ƙura ko mai. Lokacin aiki a yanayin danshi, a ɗauki matakan da za su hana danshi shiga don hana danshi shiga aikin rufin.
Alaƙa don Faɗaɗawa da Matsewa: Ga mahalli masu haɗin faɗaɗawa ko manyan bambance-bambancen zafin jiki, ya kamata a ajiye izinin faɗaɗawa da matsewa na 10-15mm tsakanin matsewa da mai jagoran, ko kuma a sanya na'urar daidaita roba don hana lalacewar matsewa saboda faɗaɗawa da matsewa na zafi.
Bukatun Gina Ƙasa: Idan ginshiƙin yana da garkuwar ƙarfe ko flange na ƙarfe, dole ne a girka shi da aminci, kuma juriyar ginshiƙin ya kamata ya zama ≤4Ω don kawar da ƙarfin lantarki da aka haifar.
III. Gudanar da Musamman a Yanayi
Shigarwa da Aka Saka: Kafin a zuba bangon siminti, ana buƙatar a saka bututun a wurinsa. A wannan lokacin, ya kamata a ba da kulawa ta musamman ga daidaiton wurin da aka sanya bututun don hana motsi yayin aikin zuba. Ya kamata ƙarshen bututun biyu su fito daga bangon da fiye da 50mm don sauƙaƙe maganin rufewa a matakin ƙarshe.
Shigarwa a Waje: Siket ɗin waje na da siket masu hana gurɓata muhalli. A lokacin shigarwa, a kula da alkiblar siket ɗin (yawanci ƙasa), kuma a riƙa tsaftace dattin siket ɗin akai-akai don hana gurɓata muhalli saboda tarin ƙura.
Nasihu Kan Tsaro: Dole ne a yi aikin shigarwa a yanayin da ba shi da kuzari, sannan a rataye alamar gargaɗin "Kada a Rufe". Ana ba da shawarar ƙwararrun ma'aikatan wutar lantarki su yi amfani da shi wajen shigar da bushings masu ƙarfin lantarki.

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