Ubufakazi bokuqhuma kwe-Shenhai
Ezisetshenziswa zikagesi ezingaqhumi, izinto zokuvikela zihlukaniswa zibe izinhlobo eziqinile neziwuketshezi, yakhelwe ngokukhethekile lezi zinhlelo zokusebenza, ngokungafani nezigaba ezibanzi zokuhlanganisa.
Izinto Zokumisa Okuqinile
Kubhekiselwa ku “okuqinile-state-insulation materials,” lezi yizinto ezihlala ziqinile ngaphansi kwezimo zokusebenza. Lesi sigaba sihlanganisa izinto ezifana ne-varnish yokuvikela, eziwuketshezi ekuqaleni kodwa ziyaqina lapho zisetshenziswa.
Izinto ezisetshenziswayo eziqinile ezisetshenziswa kakhulu ezintweni zikagesi ezingaqhumi zibalwe ngezansi.
| Ibanga lezinto ezibonakalayo | Uma kuqhathaniswa ne-Tracking Index (I-CTI) | Igama lento |
|---|---|---|
| I | 600≤CTI | I-Ceramics (ezicwebezelisiwe), imica, ingilazi |
| II | 400≤CTI＜600 | Melamine asbestos arc plastic, ipulasitiki eqinile ye-silicone ye-asbestos arc, unsaturated polyester aggregate |
| III-a | 175≤CTI＜400 | Ipulasitiki ye-Polytetrafluoroethylene, melamine glass fiber plastic, ibhodi lendwangu yengilazi ye-epoxy ephathwa ngopende ongazweli we-arc ngaphezulu |
| III-b | 100≤CTI＜175 | Ipulasitiki ye-Phenolic |
Lezi zinto ezisetshenziswayo zilinganiswa ngokusekelwe ku-Comparative Tracking Index yazo (I-CTI), isilinganiso sokusebenza kukagesi okukha phezulu. Nokho, zabo mechanical, ezishisayo, futhi izakhiwo zamakhemikhali zingahluka kakhulu, kudinga ukukhethwa ngokucophelela okusekelwe ezimweni ezithile zemvelo zokusetshenziswa, okuhlanganisa ukucatshangelwa amandla mechanical, ukumelana nokushisa, kanye nokuqina kwamakhemikhali.
I-Ceramic (Ezicwebezelisiwe) Izinto zokwakha
Kuhlanganisa izinto ezingezona ezensimbi zokufaka izinto ezingaphili, lezi zakhiwe ngama-sintering metal oxides nezinhlanganisela zensimbi ezingenawo umoya-mpilo. Izimfanelo zabo zihlanganisa ububanzi bobulukhuni be-1000 ~ 5000HV, amandla okudonsa kusuka ku-26 ~ 36 MPa, amandla okucindezela asuka ku-460~680 MPa, amaphuzu ancibilikayo angaphezu kuka-2000°C, ukwanda okushisayo okuphansi, kanye nokuzinza okuphezulu kwamakhemikhali nokumelana nokugqwala.
I-Polytetrafluoroethylene (I-PTFE)
Le nto ye-fluoroplastic isekela ukusetshenziswa kwesikhathi eside kuwo wonke amazinga okushisa ukusuka -180°C kuya ku-260°C. Iqine kakhulu kumakhemikhali, ukumelana nokugqwala, ibonisa i-coefficient ephansi yokungqubuzana, futhi ine-coefficient yokwandisa okushisayo ebalulekile.
I-Phenolic Plastic
Ipulasitiki ye-thermosetting, aziwa kwezohwebo ngokuthi “bakelite” noma “phenolic board,” ingamelana namazinga okushisa angaphezu kuka-3000°C futhi inikeza ukumelana nokusha okuhle kakhulu kanye nokuzinza kwamakhemikhali, nakuba i-brittle futhi ingamelani nokugqwala kwe-alkali.
Ngaphezu kwezinto eziqinile zokufakelwa ezishiwo, izinto zikagesi ezingaqhumi zisebenzisa kakhulu izinto ezivikelayo eziqinile, kufaka phakathi izinto zepulasitiki zezingxenye zokuvikela kanye nezinto ezithile ezisizayo kumamotho angaqhumi.
I-Liquid Insulation Materials
Lokhu kubhekisela ezintweni ezivikelayo ezitholakala ziwuketshezi, njengamafutha e-transformer, kanye nezinto ezifana ne-varnish yokuvikela esetshenziselwa ukufakwa kwamakhoyili, eziqina ngemva kokwelashwa okuqondile nokho zisabhekwa njengezivikeli eziwuketshezi.
1. Amafutha e-Transformer
• Ibalulekile ezintweni zikagesi ezingaqhumi njengama-transformer, la mafutha kufanele ahlangabezane nezindinganiso ezithile:
• Indawo yokuthungela engekho ngaphansi kuka-300°C.
• Iphoyinti elikhanyayo alikho ngaphansi kuka-200°C (inkomishi evaliwe).
• I-kinematic viscosity engadluli 1*10?? m²/s ku-25°C.
• Amandla okuqhekeka kwe-Dielectric okungenani ama-27kV.
• Ukumelana nevolumu okungenani 1*10??? m ngo-25°C.
• Thela iphuzu elingekho ngaphezu kuka -30°C.
• Ubumuncu (inani le-neutralization) kuya ku 0.03 mg/g (i-potassium hydroxide).
Amafutha e-Transformer, ngokuyinhloko uwoyela ovikela amaminerali ohlanganisa ama-alkanes, ama-cycloalkanes, kanye nama-hydrocarbon anephunga elingenawo unsaturated, inikeza izimfanelo ezinhle kakhulu zokuvikela kanye nokuzinza kokuguga. Nokho, ukusetshenziswa kwayo empahleni yezimayini ye-Class I kukhawulelwe ngenxa yokonakala okungaba khona kwezakhiwo zayo ezivikelayo ngenxa yokusetshenziswa isikhathi eside..
2. I-varnish
Isetshenziselwa ukumithisa amakhoyili kagesi ezintweni ezingaqhumisi, i-varnish evikelayo ithuthukisa amandla abo okufaka ugesi. Itholakala ngamafomu asekelwe ku-solvent namahhala, lawa mavashi akhiwe ngama-resin emvelo noma okwenziwa ahlanganiswe nezincibilikisi ezihlukahlukene njenge-benzene nama-alcohol ohlobo olusekelwe ku-solvent., kanye nezinhlaka zokwenziwa, ama-ejenti aqinisayo, kanye nezincishana ezisebenzayo ezifana ne-styrene yohlobo lwe-solvent-free.
Zombili izinhlobo ze-varnish zinikeza izinketho eziningi ukuze zivumelane nezidingo ezahlukene zohlelo lokusebenza, ukuqinisekisa ukuzivumelanisa nezimo nezidingo ezithile zokusebenza.