Ukuthi i-wiring chamber ye-isifudumezi sikagesi esingaqhumiidinga ukufaka upende ovikelayo kuncike ekuhlolweni okuphelele kohlobo oluthile olungaqhumi, izimfuneko ezijwayelekile, kanye nezimo ezingokoqobo zohlelo.
I. Izidingo Eziyinhloko Zezicaciso Ezijwayelekile
1. GB 3836.1-2021 (Izimfuneko Ezivamile Zezisetshenziswa Eziku-Explosive Atmosphere)
Leli zinga lihlanganisa izidingo zezindawo zothuli kodwa alibeki imithetho eyisibopho ekufutheni kwe-varnish emakamelweni ezintambo zemishini ye-Class II (njengeamahitha kagesi angaqhumi).
Emishinini ye-Class I (izimayini zamalahle ezingaphansi komhlaba), indawo engaphakathi yegumbi lezintambo zensimbi kufanele imbozwe ngopende ongazweli ku-arc (njengopende we-porcelain we-epoxy ongu-1320) ukuze kuvinjelwe ukuqhuma kwegesi eyenziwe yi-arc. Kodwa-ke, azikho izidingo eziqondile ezibekiwe zemishini ye-Class II (izindawo okungezona ezezimayini zamalahle njengezitshalo zamakhemikhali, izinsiza zikawoyela negesi, njll.).
2. Idizayini Ekhethekile Yezisetshenziswa Ze-Flameproof (Ex d).
Indawo yokukhwelana yendawo ebiyelwe engashi kufanele iphathwe nge-phosphating futhi igcotshwe ngamafutha okuvikela ukugqwala (njengamafutha avimbela ukugqwala angama-204-1) ukuze kuqinisekiswe ukuvala nokugqwala. Nakuba uwoyela ovimbela ukugqwala unezinto ezithile zokuvikela ukushisa, awuwona upende oyisipesheli ovikelayo.
Uma kukhona amakhondatha avelele noma izingozi ze-flashover ngaphakathi kwegumbi lezintambo, umklamo kufanele uhambisane nezindinganiso (isb, i-GB/T 16935.1) ngokusebenzisa i-clearance nebanga le-creepage, kunokuthembela kuphela ku-varnish evikelayo.
3. Izidingo Zokushisisa Ngokuphepha Okungeziwe (Ex e) Izisetshenziswa
Izinto zokuphepha ezithuthukisiwe kufanele ziqinisekise ukuthi azikho izinhlansi ngesikhathi sokusebenza okujwayelekile, njengoba ukusebenza kwegumbi lezintambo kuncike kakhulu ezintweni ezivikelayo (njengezitsha zobumba, i-epoxy resin) kanye ne-conductor sheathing, kunokumbozwa ngaphezulu kwegumbi.
Uma ingaphezulu lengxenye ye-insulating yonakalisiwe, kufanele ilungiswe ngopende we-insulating webanga elifanayo, kodwa asikho isidingo sokuthi wonke umgodi uboshwe.
II. Ukucatshangelwa Kwezobuchwepheshe Ezicelweni Ezisebenzayo
1. Imisebenzi kanye nemikhawulo ye-Insulating Varnish
Izinzuzo: Upende ovikelayo ungathuthukisa amandla okufaka indawo engaphezulu (njengokumelana ne-arc nokuvimbela ukuvuza), uwenze ulungele kakhulu umswakama ophezulu noma izindawo ezinothuli. Isibonelo, ukusebenzisa upende we-epoxy insulating 20-30μm kungakhuphula izinga lokugcinwa kokumelana nokufakwa libe ngaphezu kwama-85%.
Ingozi: Upende ovikelayo ungase uthinte ukunqanyulwa kokushisa. Ngokwesibonelo, i-explosion-proofheater kagesiilungiselela ukunqanyulwa kokushisa ngokusebenzisa izintuba zokupholisa kanye nokugcwaliswa kwegesi engasebenzi. Ukufafaza ngokweqile kungaphazamisa ibhalansi yokushisa. Ukwengeza, upende ovikelayo kufanele uphumelele ekuhlolweni kokumelana nezinga lokushisa eliphezulu (isb., ngaphezu kuka-150°C) noma ungase uhluleke.
2. Ukusebenza Kwemboni kanye Nezinqubo Zomkhiqizi
Izinto ezivikela uthuli zangaphambili: Abakhiqizi abaningi bafaka i-primer evimbela ukugqwala (isb, i-alkyd primer ebomvu yensimbi engu-C06-1) ngaphakathi kwegumbi lezintambo, kodwa upende ovikelayo awuphoqelekile. Isibonelo, ibhokisi elithile le-junction lenjini elingaqhumi lisebenzisa inhlanganisela "ye-primer + arc-resistant magnetic paint", eqinisa ukwahlukanisa endaweni kuphela.
Ukwenyuka kwemishini yokuphepha: Kugcizelelwa kakhulu ukwethembeka kwemishini kokuxhunywa kwamakhondatha (njengamatheminali avimbela ukuxega) kanye nokukhethwa kwezinto zokuvikela, kuyilapho ukufuthwa kwe-cavity akudingekile.
3. Izidingo Ezengeziwe Zezimo Ezikhethekile
Indawo enokugqwala okuphezulu (njengezindawo ezisogwini noma zezimboni zamakhemikhali): Faka upende ovimbela ukugqwala (isb., i-ZS-1091 Ceramic insulating coating) ukuze uqinisekise kokubili ukumelana namakhemikhali kanye nokugqumisa.
Imishini yamandla kagesi aphezulu (isb., ngaphezu kuka-10kV): Upende ovimbela ukuqina kwe-Gradient-thickness anti-corona kufanele usetshenziswe ukuze kucindezelwe ukukhishwa okuncane.
III. Isiphetho Nezincomo
1. Izimo zokufafaza okuphoqelekile
Amakamelo okufaka izintambo ezinto ze-Class I kuphela (ezimayini zamalahle angaphansi komhlaba) okudingekayo ukuthi ambozwe ngopende ongazweli ku-arc.
Uma isisetshenziswa sithuthukisa ukusebenza kwakho kokuvikela ukuqhuma ngokusebenzisa upende ovikelayo (isb, ukuhlangabezana nezilinganiso ze-IP eziphakeme noma ukumelana nokugqwala), lokhu kufanele kuchazwe ngokucacile kumadokhumenti esitifiketi.
2. Izimo ezingaphoqelekile kodwa ezinconyiwe
Emishinini ye-Class II, kunconywa ukusebenzisa upende wokuvikela uma kunezimo ezilandelayo:
Igumbi lokufaka izintambo linesikhala esihlangene, indawo kagesi noma ibanga le-creepage elisondela emkhawulweni ojwayelekile.
Umswakama ophezulu we-ambient (isb., RH> 90%) noma ukuba khona kothuli oluqhutshwayo.
Izinto ezisetshenziswayo zidinga ukusebenza isikhathi eside futhi kunzima ukuzinakekela (isb, ukugqitshwa noma ukufakwa uphawu).
Kunconywa ukukhetha upende ongamelana nezinga lokushisa eliphezulu (≥135°C) kanye nopende obambayo onamathela ngokuqinile (njengopende we-epoxy polyester), onogqinsi okulawulwa phakathi kuka-20-30μm ukuze ubhalansise ukufakwa nokukhipha ukushisa.
3. Inqubo kanye Nokuqinisekisa
Ngaphambi kokufafaza, i-cavity kufanele iphathwe nge-sandblasting (ibanga le-Sa2.5) ukuqinisekisa ukunamathela kwefilimu kapende.
Ngemuva kokuqedwa, ukumelana nokushisa (≥10MΩ) namandla e-dielectric (isb, 1760V/2min) kufanele kuhlolwe, futhi ukuhlolwa kwesifutho sikasawoti (isb., isixazululo se-NaCl esingu-5%, amahora angu-1000 ngaphandle kokugqwala) kufanele kudlule.
Uma ufuna ukwazi okwengeziwe ngomkhiqizo wethu, sicelaXhumana nathi!
Isikhathi sokuthumela: Oct-09-2025
