Conductor shielding layer (inonziwo inner shielding layer, inner semi-conductive layer)
Iyo conductor shielding layer ndeye isiri-metallic layer yakasimudzwa pane tambo conductor, iyo iri equipotential neconductor uye ine vhoriyamu resistivity ye100 ~ 1000Ω•m.Equipotential ne conductor.
Kazhinji, tambo dzepasi-voltage dze3kV uye pazasi hadzina conductor shielding layer, uye tambo dzepakati nepamusoro-voltage dze6kV uye pamusoro dzinofanirwa kunge dziine conductor shielding layer.
Mabasa makuru emuitisi shielding layer: kubvisa kusaenzana kwepamusoro pe conductor;bvisa iyo tip effect ye conductor surface;kubvisa pores pakati kondakita uye insulation;ita kuti conductor uye insulation iwirirane pedyo;kunatsiridza kugovera kwemagetsi kutenderedza conductor;ye-cross-linked cable conductor shielding layer, inewo basa rekudzivisa kukura kwemiti yemagetsi uye kudzivirira kupisa.
Insulation layer (inonziwo main insulation)
Iyo main insulation yetambo ine chaiyo basa rekutsungirira system voltage.Munguva yehupenyu hwesevhisi yetambo, inofanirwa kumira neiyo yakayerwa voltage uye overvoltage panguva yekutadza kwehurongwa kwenguva yakareba, mheni impulse voltage, kuve nechokwadi kuti hapana hama kana chikamu-ku-chikamu kuputsa kupfupika kunoitika pasi pekushanda kupisa mamiriro.Nokudaro, iyo huru yekudzivirira zvinhu ndiyo kiyi yehutano hwetambo.
Cross-yakabatanidzwa polyethylene yakanaka insulating material, iyo yava kushandiswa zvakanyanya.Ruvara rwayo rwakaita bluish-white uye translucent.Hunhu hwayo ndeiyi: high insulation resistance;inokwanisa kumirisana nepamusoro pesimba frequency uye pulse electric field breakdown simba;yakaderera dielectric kurasikirwa tangent;yakagadzikana zvinhu zvemakemikari;zvakanaka kupisa kupisa, kwenguva refu inobvumirwa tembiricha yekushanda ye90 ° C;yakanaka mechanical properties, nyore kugadzirisa uye kugadzirisa kurapwa.
Insulation shielding layer (inonziwo outer shielding layer, yekunze semi-conductive layer)
Iyo insulation shielding layer ndeye isiri-metallic layer yakasimudzwa pane main insulation yetambo.Nyaya yaro zvakare ndeye-yakabatana-yakabatana zvinhu ine semi-conductive zvivakwa uye vhoriyamu resistivity ye500~1000Ω•m.Iyo ine equipotential nekudzivirira kwepasi.
Kazhinji, tambo dzepasi-voltage dze3kV uye pazasi hadzina insulation shielding layer, uye tambo dzepakati nepamusoro-voltage dze6kV uye pamusoro dzinofanirwa kunge dziine chivharo chekudzivirira.
Basa rekudzivirira kwekudzivirira kwekudzivirira: kuchinja pakati pekuvhara kukuru kwetambo uye pasi pesimbi shielding, kuitira kuti vave nehukama hwepedyo, kubvisa mukaha pakati pekuvhara uye pasi conductor;bvisa iyo tip effect pamusoro peiyo grounding mhangura tepi;kunatsiridza kugovera kwemagetsi kutenderedza nzvimbo yekudzivirira.
Insulation shielding yakakamurwa kuita zvinobviswa uye zvisingabvisiki mhando zvichienderana nemaitiro.Kune tambo dzepakati nepakati, inobvisa mhando inoshandiswa kune 35kV uye pasi.Yakanaka inobvisirwa insulation yekudzivirira ine yakanaka adhesion, uye hapana semi-conductive zvimedu zvinosara mushure mekukurura.Non-strippable type inoshandiswa pa110kV zvichikwira.Iyo isingabvisike shielding layer yakanyatso kubatanidzwa neiyo main insulation, uye zvinodiwa zvekuvaka zvakakwirira.
Metal shielding layer
Metal shielding layer yakaputirwa kunze kweiyo insulation shielding layer.Iyo simbi inodzivirira layer inowanzo shandisa tepi yemhangura kana waya yemhangura.Icho chimiro chakakosha chinogadzirisa munda wemagetsi mukati metambo uye inodzivirira kuchengetedzwa kwevanhu.Iyo zvakare ivhu rekudzivirira shielding layer inodzivirira tambo kubva kunze kwekukanganisa kwemagetsi.
Kana kukanganisa kwepasi kana kupfupi-kwedunhu kuchiitika muhurongwa, simbi inodzivirira simbi ndiyo chiteshi chenguva pfupi-yepasi pasi.Yayo muchinjika-chikamu nharaunda inofanirwa kuverengerwa uye kutariswa zvinoenderana nehurongwa hwepfupi-dunhu kugona uye nekwawakarerekera point grounding nzira.Kazhinji, iyo mhiri-chikamu nzvimbo yekudzivirira layer yakaverengerwa 10kV system inokurudzirwa kuti ive isingasviki 25 square millimeters.
Mumitsara yetambo ye110kV uye pamusoro, iyo simbi yekudzivirira layer inoumbwa nesimbi sheath, iyo ine ese emagetsi munda ekudzivirira uye isina mvura yekuisa chisimbiso mabasa, uye zvakare ine michina yekudzivirira mabasa.
Izvo zvinhu uye chimiro chesimbi sheath kazhinji inotora corrugated aluminium sheath;sheath yemhangura;corrugated stainless sheath;lead sheath, etc. Mukuwedzera, kune sheath yakaumbwa, iyo inoumbwa iyo aluminium foil inosungirirwa kuPVC uye PE sheaths, iyo inoshandiswa zvakanyanya muEurope neAmerica zvigadzirwa.
Armor layer
Simbi yezvombo zvesimbi inoputirwa mukati membambo yemukati, kazhinji inoshandisa kaviri-layer galvanized simbi bhandi rezvombo.Basa rayo nderokudzivirira mukati metambo uye kudzivirira mechanical kunze kwemasimba kubva pakukuvadza tambo panguva yekuvaka nekushanda.Iyo inewo basa rekudzivirira kwepasi.
Iyo nhumbi yezvombo ine zvakasiyana-siyana zvimiro, senge simbi wire nhumbi dzokurwa, Stainless simbi nhumbi dzokurwa, dzisiri-simbi nhumbi dzokurwa, nezvimwewo, izvo zvinoshandiswa kune yakakosha tambo zvimiro.
Nguva yekutumira: Jun-28-2024
