Kaya chipinda cholumikizira cha anchotenthetsera chamagetsi chosaphulikaimafuna kuyika utoto wotsekereza kumadalira kuunika kokwanira kwa mtundu wamtundu wosaphulika, zofunikira zenizeni, ndi zochitika zenizeni.
I. Zofunikira Zazikulu za Mafotokozedwe Okhazikika
1. GB 3836.1-2021 (Zofunikira Zazikulu Zazida Zomwe Zili Zophulika Pamlengalenga)
Mulingo uwu umaphatikizanso zofunikira pamadera afumbi koma samakhazikitsa malamulo ovomerezeka pakupopera kwa varnish m'zipinda zama waya za zida za Gulu II (mongazotenthetsera zamagetsi zosaphulika).
Pazida za Class I (migodi ya malasha apansi panthaka), mkati mwa zipinda zamawaya zazitsulo ziyenera kupakidwa utoto wosamva arc (monga 1320 epoxy porcelain paint) kuteteza kuphulika kwa mpweya wopangidwa ndi arc. Komabe, palibe zofunikira zenizeni zomwe zafotokozedwa pazida za Gulu lachiwiri (malo osapangira migodi ya malasha monga malo opangira mankhwala, mafuta ndi gasi, etc.).
2. Mapangidwe apadera a Flameproof (Ex d) Zida
Malo okwererapo pamalo otchingidwa ndi moto amayenera kuthandizidwa ndi phosphating ndikukutidwa ndi mafuta oletsa dzimbiri (monga mafuta oletsa dzimbiri 204-1) kuti atsimikizire kusindikiza komanso kukana dzimbiri. Ngakhale mafuta oletsa dzimbiri ali ndi zinthu zina zotetezera, si utoto wapadera woteteza.
Ngati pali ma kondakitala owonekera kapena zoopsa za flashover mkati mwa chipinda cholumikizira mawaya, kapangidwe kake kayenera kutsata miyezo (mwachitsanzo, GB/T 16935.1) kudzera pakuloleza ndi mtunda wa creepage, m'malo mongodalira varnish yoteteza.
3. Zofunikira za Insulation Pakuwonjezera Chitetezo (Ex e) Zida
Zida zachitetezo zolimbidwa siziyenera kuwonetsetsa kuti pakugwira ntchito mwanthawi zonse, chifukwa chachitetezo cha chipinda chake cholumikizira mawaya chimadalira zida zotetezera (monga zoumba, utomoni wa epoxy) ndi kondakitala, osati zokutira pamwamba pa chipindacho.
Ngati pamwamba pa chigawo chotetezeracho chawonongeka, chiyenera kukonzedwa ndi utoto wotsekemera wa kalasi yomweyi, koma palibe chofunikira kuti patsekeke yonse ikhale yotsekedwa.
II. Malingaliro Aukadaulo mu Ma Applications Othandiza
1. Ntchito ndi Zochepa za Varnish yoteteza
Ubwino: Utoto wotsekera ukhoza kukulitsa mphamvu yotchinga pamwamba (monga kukana kwa arc ndi kupewa kutayikira), kupangitsa kuti ikhale yoyenera kwambiri pachinyezi kapena malo afumbi. Mwachitsanzo, kugwiritsa ntchito utoto wa 20-30μm wa epoxy insulating penti kumatha kukulitsa kukana kukana kusunga mpaka 85%.
Zowopsa: Utoto wotsekera ukhoza kusokoneza kutentha. Mwachitsanzo, chotsimikizira kuphulikachotenthetsera chamagetsikumawonjezera kutha kwa kutentha kudzera m'malo ozizira komanso kudzaza gasi. Kupopera mankhwala mopitirira muyeso kungasokoneze kutentha. Kuonjezera apo, utoto wotsekera uyenera kuyesedwa kukana kutentha kwambiri (mwachitsanzo, pamwamba pa 150 ° C) kapena ukhoza kulephera.
2. Zochita Zamakampani ndi Njira Zopanga
Zipangizo zosatha fumbi: Opanga ambiri amapaka utoto woteteza dzimbiri (mwachitsanzo, C06-1 iron red alkyd primer) mkati mwa chipinda cholumikizira mawaya, koma penti yotsekereza sikofunikira. Mwachitsanzo, bokosi linalake lopinga kuphulika lamoto limagwiritsa ntchito kuphatikiza kwa "primer + arc-resistant magnetic paint", kulimbikitsa kutchinjiriza pamalo okhawo.
Kuwonjezeka kwa zida zotetezera: Kutsindika kwakukulu kumayikidwa pa kudalirika kwa makina a ma kondakitala (monga ma terminals oletsa kumasula) ndi kusankha zipangizo zotetezera, pamene kupopera mbewu mankhwalawa sikofunikira.
3. Zowonjezera Zofunikira pa Zochitika Zapadera
Malo okhala ndi dzimbiri (monga madera a m'mphepete mwa nyanja kapena m'mafakitale a mankhwala): Ikani penti yoteteza ku dzimbiri (monga ZS-1091 zokutira za ceramic) kuti mutsimikizire kuti zonse sizingagwirizane ndi mankhwala komanso kutchinjiriza.
Zida zokhala ndi mphamvu yamagetsi apamwamba (monga pamwamba pa 10kV): Pangidwe utoto wothina ndi corona wokhuthala pang'onopang'ono kuti utsikize kutulutsa pang'ono.
III. Pomaliza ndi Malangizo
1. Zovomerezeka kupopera mbewu mankhwalawa
Zipinda zamawaya za zida za Class I zokha (zamigodi ya malasha apansi panthaka) ndizofunikira kuti zikhale zopakidwa utoto wosamva arc.
Ngati chipangizochi chimapangitsa kuti chisawonongeke popaka utoto wotsekereza (mwachitsanzo, kuti chikwaniritse ma IP apamwamba kapena kukana dzimbiri), izi ziyenera kufotokozedwa momveka bwino m'makalata otsimikizira.
2. Zosakakamiza koma zovomerezeka
Pazida za Gulu II, tikulimbikitsidwa kugwiritsa ntchito utoto wotsekereza ngati pali zinthu zotsatirazi:
Chipinda cholumikizira chili ndi malo ophatikizika, ndi chilolezo chamagetsi kapena mtunda wa creepage ukuyandikira malire.
Kutentha kwakukulu kozungulira (mwachitsanzo, RH> 90%) kapena kupezeka kwa fumbi loyendetsa.
Zida zimafuna kugwira ntchito kwa nthawi yayitali ndipo zimakhala zovuta kuzisamalira (mwachitsanzo, kukwiriridwa kapena kusindikizidwa).
Ndibwino kuti musankhe utoto wosatentha kwambiri (≥135 ° C) ndi utoto wonyezimira kwambiri (monga utoto wa polyester wa epoxy), wokhala ndi makulidwe oyendetsedwa pakati pa 20-30μm kuti muchepetse kusungunula ndi kutulutsa kutentha.
3. Njira ndi Kutsimikizira
Pamaso kupopera mbewu mankhwalawa patsekeke ayenera kukumana sandblasting mankhwala (Sa2.5 kalasi) kuonetsetsa utoto filimu adhesion.
Mukamaliza, kukana kwa kutchinjiriza (≥10MΩ) ndi mphamvu ya dielectric (mwachitsanzo, 1760V/2min) ziyenera kuyesedwa, ndipo mayeso opopera mchere (mwachitsanzo, 5% NaCl solution, maola 1000 osachita dzimbiri) ayenera kudutsa.
Ngati mukufuna kudziwa zambiri za mankhwala athu, chondeLumikizanani nafe!
Nthawi yotumiza: Oct-09-2025
