ʻO ka hana a me ka hoʻohana ʻana i nā mea hoʻonaninani paʻa

2021-10-26


  Nui nā mea hoʻoheheʻe paʻa e like me FR4 pepa, 3240 Epoxy Resin Pepa, a 3026 Phenolic pulupulu lole Laminate Pepa.


  ʻO ka mea mua ʻO nā waiwai nui o nā mea hoʻokalakupua paʻa


1. Ke kū'ē kū'ē


1) Leakage au


  ʻOiai ke kiʻekiʻe loa ka resistivity o ka mea insulating, aia mau ke kahe liʻiliʻi ma lalo o ka hana o kekahi volta. Kapa ʻia kēia au i ka leakage current. ʻO ka leakage o kēia manawa he ʻelua mau ʻāpana, hoʻokahi ʻāpana e kahe ana i loko o ka mea insulating, a ʻo ka ʻāpana ʻē aʻe ma ka insulation Ke kahe nei ka ʻili o ka mea.


2) Ka pale ʻana o ka ʻili a me ka ikaika o ka leo


  No ka mea insulating like, e emi ana ka waiwai kū'ē leo me ka piʻi ʻana o ka mahana; e emi ana ka waiwai kū'ē i luna me ka lepo ma luna o ka ili; i ka wā e pulu ai ka mea hoʻopulapula, e emi iho ka waiwai kūʻē leo a me ka waiwai kūʻē o ka ʻili.


2. Ka ikaika wawahi


  E hōʻino ʻia nā mea insulating a nalowale kā lākou hana insulation ma lalo o ka hana o ka ikaika o ke kahua uila ma mua o kahi waiwai. Kapa ʻia kēia ʻano he breakdown. ʻO ka ikaika o ke kahua uila i ka wā e wāwahi ʻia ai ka mea insulating i kapa ʻia ʻo ka ikaika haʻihaʻi, a ʻo ka ʻāpana kV / mm.


  Hiki ke hoʻokaʻawale ʻia ka wehe ʻana o nā mea insulating i:


1) Nahaha uila


  Ma lalo o ka hana a ke kahua uila ikaika, e neʻe ikaika ana nā ʻāpana i hoʻopiʻi ʻia i loko o ka dielectric, e hoʻoulu ai i ka ionization collision, e luku ana i ke ʻano molekala, e hoʻonui i ka conductance, a i ka hopena hope.


2) Hoʻopau wela


  Ma lalo o ka hana a ke kahua uila ikaika, hana ʻia ka wela i loko o ka dielectric ma muli o ka poho dielectric. Inā ʻaʻole hiki ke hoʻopau ʻia i ka manawa, e piʻi aʻe ka mahana o loko o ka dielectric, e alakaʻi ana i ka haki ʻana o ka molecular structure a me ka haki.


3) Hoʻokuʻu ʻia ka haki


  Ma lalo o ka hana o ka ikaika uwila kahua, na bubbles i loko o ka dielectric mua undergo collision ionization a me ka hoʻokuʻuʻana, a me ka haumia ua hoʻi i vaporized e ka uila kahua hoʻomehana, ka hopena i ka huahuakai, no laila, i ka hoʻokuʻu ʻana o ka huʻihuʻi e ulu hou, e alakaʻi ana i ka haki ʻana o ka mea insulating holoʻokoʻa.


3. kū pale i ka wela


  I ka wā o ka hana ʻana o nā mea uila, hana kāna mau mea insulating ma lalo o nā kūlana wela no ka manawa lōʻihi, no laila pono i nā mea insulating i koho ʻia ke ʻano o ka pale wela. No ka mea, ʻo ke kumu nui e hoʻomaka ai ka ʻelemakule o nā mea insulating he mahana, e like me ke kūpaʻa wela o nā mea insulating like ʻole, ua kuhikuhi ʻia ka mahana kiʻekiʻe i ka wā o ka hoʻohana ʻana e hōʻoia i ke ola lawelawe o nā huahana uila a pale aku i ka wela kiʻekiʻe i ka wā e hoʻohana ai a wikiwiki i ka insulation. Ka elemakule waiwai.


  Hoʻokaʻawale ʻia nā mea hoʻoheheʻe uila i ʻehiku mau māka pale wela e like me ko lākou wela kiʻekiʻe i ʻae ʻia:


1) papa Y


  ʻO 90°C ka palena wela. ʻO nā mea insulating nui nā textiles kūlohelohe e like me ka lāʻau, ka pulupulu, ka pepa, a me nā fibers, a me nā textiles e pili ana i ka cellulose acetate a me ka polyamide, a me nā plastics i maʻalahi i ka thermally decompose a loaʻa kahi wahi hoʻoheheʻe haʻahaʻa.


2) Papa A


  ʻO 105°C ka palena wela. ʻO nā mea insulation nui nā mea papa Y e hana ana i ka ʻaila mineral, nā mea papa Y i hoʻopili ʻia me ka ʻaila a i ʻole oleoresin compound glue, uea enamel, lole kānana, pena asphalt, etc.


3) Papa E


  ʻO ka palena palena he 120 ℃, a ʻo nā mea insulation koʻikoʻi he kiʻiʻoniʻoni polyester a me A-grade material composite, ka lole aniani, ka pena resin i hoʻokumu ʻia i ka aila, vinyl acetate heat-resistant enamel wire, etc.


4) Papa B


  ʻO 130 ℃ ka palena wela. ʻO nā mea insulation nui he kiʻiʻoniʻoni polyester, mica, fiber glass, asbestos a me nā huahana ʻē aʻe i hoʻopili ʻia a uhi ʻia e ka hoʻopaʻa resin kūpono, a me ka uea polyester enamled.


5) papa F


  ʻO ka palena palena he 155 ℃, a ʻo nā mea insulation koʻikoʻi nā huahana mica sheet i hoʻoikaika ʻia me nā mea fiber organik, fiber glass a me asbestos, nā lole varnish aniani, etc.


6) Papa H


  ʻO ka palena palena he 180 ℃, a ua hoʻoikaika ʻia nā mea insulation nui me ka ʻole o nā huahana mica i hoʻoikaika ʻia me nā mea inorganic, nā mea mānoanoa F grade, silicone organic paint, silicone organic rubber, etc.


7) Papa C


  ʻOi aku ka mahana o ka palena ma luna o 180 ℃, a ʻo nā mea insulating nui e pili ana i nā mineral inorganic ʻaʻole i hoʻohana i nā mea hoʻopili organik a me nā impregnants, e like me ka quartz, asbestos, mica, aniani a me nā mea porcelain uila.


4. Ka ikaika mechanical


  E like me nā koi kikoʻī o nā mea insulating like ʻole, ua kuhikuhi ʻia nā ʻano helu ikaika like ʻole e like me ka tensile, compressive, flexural, shear, tear, a me ka pale ʻana i ka hopena. Pono e loaʻa i nā mea insulating like ʻole nā ​​ʻano kuhikuhi hana. E like me ka permeability, ka aila kū'ē, elongation, shrinkage, solvent kū'ē a me arc kū'ē.


5. Kaʻelemakule o nā mea insulating


  I ka wā o ka hana ʻana o nā mea insulating i nā lako uila, hiki ke hoʻololi ʻia ke ʻano o nā kemika a me nā hoʻololi kino ma muli o nā kumu like ʻole e like me ka uila a me ka wela, ka hopena o ka hōʻino ʻana o nā waiwai uila a me nā mīkini, a lilo kēia hoʻololi hiki ʻole ke ʻelemakule. ʻO nā kumu o ka ʻelemakule:

1) Loaʻa ka pakele o nā mea haʻahaʻa haʻahaʻa i loko o ka dielectric.

2) Depolymerization a me ka oxidative cracking, ma lalo o ka hana o ka wela a me ka oxygen, e hoʻopuka i nā radical manuahi e hoʻomaka i ka hopena.

3) Thermal cracking, ka mea e hoʻopuka ai i nā mea ʻino, ʻo ka hydrogen chloride ka hopena catalytic ma kekahi mau mea.

4) Hydrolysis. Ma lalo o ka hana o ka wela, hoʻopili ka makū me nā mea insulating e hana i ka hydrolysis.

5) Ke hoʻomau nei ke kaulahao molekala i ka polymerize, e lilo ai ka mea insulating i mea palupalu.


  ʻO ka lua, ʻo ka hoʻohana ʻana i nā mea insulating paʻa


1. Pena hoʻokaʻawale

  Hiki ke hoʻokaʻawale ʻia ka pena insulating i loko o ka pena kuʻi, ka pena uhi a me ka pena kilika kila.


1) Ke kuʻi ʻana i ka pena


  Hoʻohana nui ʻia e impregnate i nā kaʻa, nā wili uila a me nā ʻāpana insulating e hoʻopiha i nā āpau a me nā micropores a hoʻomaikaʻi i kā lākou mau pono uila a me ka mechanical. Hoʻohana maʻamau ʻia ka pena alkyd dipping a me ka melamine alkyd dipping paint. ʻO kēia mau mea ʻelua he mau pena bakena, ʻo ia mau mea ʻelua ke kūpaʻa ʻaila maikaʻi a me ke kūpaʻa arc, a maʻalahi a ʻālohilohi ka kiʻi pena.


2) Pena uhi


  ʻElua ʻano o ka varnish a me ka enamel, i hoʻohana ʻia no ka ʻaʻahu ʻana i nā coils a me nā ʻāpana insulating ma hope o ka hoʻomaʻamaʻa ʻana, a hana i kahi kiʻi pena hoʻomau a ʻano like ʻole ma ka ʻili e like me kahi papa pale insulating e pale ai i ka pōʻino mechanical a me ka lewa, ka aila lubricating a me ka kemika. ka hoopau ana i na laau lapaau.


2. Pepa hoʻokaʻawale

  

  ʻO ka pepa insulating he mea hoʻopili i hui pū ʻia me ka pepa a me ka ʻaila. Hoʻomaloʻo ʻia ka pepa uea i ʻōwili ʻia a hoʻopaʻa ʻia me ka ʻaila ʻaila ma lalo o ka momi e hana ai i ka ʻaila-pepa composite insulation structure. Hoʻokumu ʻia ka pepa uwea me ka pulupulu lāʻau, nona nā waiwai uila kiʻekiʻe, kūpaʻa kemika a me ka ikaika mechanical. ʻO ke ʻano hou o ka pepa fiber wood polypropylene he mau hiʻohiʻona maikaʻi loa o ka poho dielectric haʻahaʻa.


3. ʻO ka papa hoʻokaʻawale o ke kaula i hoʻopaʻa ʻia


  ʻO ka papa insulation o ka plastic insulated cable he extruded insulation. ʻO ka extrusion insulation ka mea e kaomi ai i ka plastic, rubber a me nā polymers molecular kiʻekiʻe ma luna o ka conductor paʻa me nā mea hana extrusion e hana i kahi ʻano o ka papa insulation layer. Hoʻohana mau ʻia nā mea hoʻoheheʻe extruded me ka polyvinyl chloride, polyethylene, polyethylene cross-linked a me ka ethylene-propylene rubber.


1) Polyvinyl chloride (PVC)


  ʻO ka polyvinyl chloride ka waiwai uila maikaʻi a me ka ikaika mechanical, loaʻa ka waikawa, ka alkali a me ka aila kūpaʻa, non-flammable, a maikaʻi ke kaʻina hana. ʻO ka hemahema, he haʻahaʻa ka pale wela, he liʻiliʻi ka pale insulation, a he nui ka poho dielectric.


2) Polyethylene (PE)


  ʻO ka polyethylene nā waiwai uila maikaʻi loa a me ka poho dielectric haʻahaʻa. ʻO ka hoʻohui ʻana i ka nui kūpono o nā mea hoʻohui hiki ke hoʻomaikaʻi i ke kūpaʻa corona, ke kū ʻana o ka wela a me ka ikaika mechanical o ka polyethylene, a hoʻomaikaʻi i nā waiwai hoʻoweliweli koʻikoʻi.


3) Polyethylene pili kea


  He pale wela maikaʻi ka polyethylene cross-linked, akā maikaʻi ka corona a me ka hoʻokuʻu manuahi. ʻO ke kaula polyethylene i hoʻopaʻa ʻia he ʻoi aku ka kiʻekiʻe o ka piʻi ʻana o ka mahana a me ka hiki ke lawe i kēia manawa. He kūpono ia no nā voltages like ʻole, hiki ke hoʻohana ʻia no ka waiho ʻana kiʻekiʻe, a maʻalahi ke hoʻouka a mālama.


4) Ethylene propylene rubber (XLPE)


  Hiki ke maʻalahi ka pale ʻana o ka Rubber, maʻalahi ke kulou, a me ka elastic, akā maikaʻi ʻole ka pale ʻana i ka corona, ka pale ozone, ka wela a me ka ʻaila. Hiki ke hoʻohana ʻia nā kaula i hoʻopaʻa ʻia i ka Rubber insulated i nā piʻi anuanu koʻikoʻi, a ua kūpono i nā kaapuni i hoʻokaʻawale ʻia i nā manawa he nui, akā hiki ke hoʻohana wale ʻia e like me nā kaula haʻahaʻa haʻahaʻa a ʻaʻole kūpono i nā kaapuni paʻa.


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