Pahū ʻo Shenhai
I nā noi uila pahū, Hoʻokaʻawale ʻia nā mea insulation i nā ʻano paʻa a me nā ʻano wai, i hoʻopili pono ʻia no kēia mau noi, ʻaʻole like me nā ʻāpana insulation ākea.
Nā mea hoʻopololei paʻa
Haʻi ʻia e like me “nā mea hoʻopololei paʻa,” he mau mea kēia i paʻa ma lalo o nā kūlana hana. Aia kēia māhele i nā mea e like me ka insulating varnish, he wai ma mua akā hoʻopaʻa i ka noi.
Hoʻohana maʻamau ʻia nā mea hoʻoheheʻe paʻa paʻa i nā mea uila pahū-hōʻike ʻia ma lalo nei.
| Papa waiwai | Hoʻohālikelike ʻia me ka Index Tracking Index (CTI) | inoa mea |
|---|---|---|
| I | 600≤CTI | Keramika (aniani), mika, aniani |
| II | 400≤CTI＜600 | Melamine asbestos arc plastic, silikoni organic asbestos arc pale i ka plastic, ka hui polyester unsaturated |
| III-a | 175≤CTI＜400 | Polytetrafluoroethylene plastic, melamine aniani fiber plastic, ʻO ka papa lole aniani epoxy i mālama ʻia me ka pena kuʻekuʻe ma luna o ka ʻili |
| III-b | 100≤CTI＜175 | Phenolic plastic |
Kuhi ʻia kēia mau mea ma muli o kā lākou Comparative Tracking Index (CTI), he ana o ka hana uwila papa. Eia naʻe, kā lākou mīkini, wela, a hiki ke ʻokoʻa ka waiwai kemika, pono ke koho akahele ma muli o nā kūlana kaiapuni o ka hoʻohana, me nā manaʻo no ka ikaika mechanical, pale wela, a me ka lōʻihi kemika.
Keramika (ʻāniʻi) Nā mea waiwai
Loaʻa nā mea hoʻokaʻawale non-metallic inorganic, ua hana ʻia kēia mau mea ma ka sintering metala oxides a me non-oxygen metala pūhui. ʻO kā lākou mau hiʻohiʻona he ʻano paʻakikī o 1000 ~ 5000HV, ikaika tensile mai 26 ~ 36 MPa, ikaika compressive mai 460 ~ 680 MPa, nā helu heheʻe ma mua o 2000°C, hoʻonui wela haʻahaʻa, a me ke kūpaʻa kemika kiʻekiʻe a me ke kū'ē i ka corrosion.
Polytetrafluoroethylene (PTFE)
Mālama kēia mea fluoroplastic i ka hoʻohana lōʻihi ma waena o nā mahana mai -180°C a 260°C. He paʻa kemika, kū'ē i ka corrosion, hōʻike i ka haʻahaʻa friction coefficient, a loaʻa i kahi koena hoʻonui wela nui.
Phenolic Plastic
He plastic thermosetting, ʻike ʻia ma ke ʻano kālepa “bakelite” a i ʻole “papa phenolic,” hiki iā ia ke pale i nā mahana ma mua o 3000 ° C a hāʻawi i ka pale ahi maikaʻi loa a me ke kūpaʻa kemika, ʻoiai he palupalu a ʻaʻole kū i ka ʻino alkali.
Ma waho aʻe o nā mea insulation paʻa i ʻōlelo ʻia, Hoʻohana nui nā lako uila pahū i nā ʻano mea insulating paʻa, me nā mea pahū no nā ʻāpana insulating a me kekahi mau mea kōkua i nā kaʻa pahū.
Nā mea hoʻoheheʻe wai
E pili ana kēia i nā mea insulating maʻamau i loaʻa ma ke ʻano wai, e like me ka aila transformer, a me nā mea e like me ka insulating varnish i hoʻohana ʻia no ka coil impregnation, ʻo ia ka mea paʻa ma hope o nā lāʻau lapaʻau kūikawā akā ua manaʻo ʻia he insulators wai.
1. Aila Transformer
• Pono no nā lako uila pahū e like me nā transformers, pono kēia ʻaila i nā kūlana kikoʻī:
• ʻAʻole ma lalo o 300°C ke kiko ʻā.
• Ke kiko uila ʻaʻole ma lalo o 200°C (kīʻaha paʻa).
• ʻAʻole iʻoi aku ka viscosity kinematic 1*10?? m²/s ma 25°C.
• ʻO ka ikaika hoʻohaʻahaʻa dielectric ma kahi o 27kV.
• Volume resistivity ma ka liʻiliʻi loa 1*10??? m ma 25°C.
• ʻAʻole ma luna o ka -30°C.
• Kaʻakika (waiwai kūʻokoʻa) a hiki i 0.03 mg/g (pāhaʻuha waihā).
ʻAila hoʻololi, ʻo ka mea nui he ʻaila hoʻokaʻawale mineral me nā alkanes, cycloalkanes, a me nā hydrocarbons aromatic unsaturated, hāʻawi i nā ʻano insulating maikaʻi loa a me ke kūpaʻa ʻelemakule. Eia naʻe, Ua kaupalena ʻia kona hoʻohana ʻana i nā mea hana mining Class I ma muli o ka hiki ke hoʻohaʻahaʻa ʻia o kāna mau waiwai insulating ma luna o ka hoʻohana lōʻihi..
2. Varnish
Hoʻohana ʻia no ka hoʻokomo ʻana i nā wili uila i nā lako pahū, hoʻomaikaʻi ka insulating varnish i ko lākou hiki ke hoʻokaʻawale uila. Loaʻa i loko o nā ʻano solvent-based a me ka solvent-free forms, Hana ʻia kēia mau varnish me nā resins maoli a i ʻole synthetic i hui pū ʻia me nā mea hoʻoheheʻe like ʻole e like me benzene a me nā waiʻona no ka ʻano solvent-based., a me nā resins synthetic, mea hooikaika paa, a me nā mea hoʻoheheʻe ikaika e like me ka styrene no ke ʻano solvent-free.
Hāʻawi nā ʻano varnish ʻelua i nā koho he nui e kūpono i nā pono noi like ʻole, hōʻoia i ka hoʻololi ʻana i nā koi pono hana.