Nzira yekuverenga sei ikozvino chiyero chetambo?-Slocable

Ikozvino kutakura kugona kweiyo insulated conductor kana tambo ndiyo yakanyanya ikozvino yainogona kuramba ichitakura pasina kudarika tembiricha yayo.Iyo inozivikanwawo seampacity.

Panguva iyo tambo dziri kushanda dzinotambura kurasikirwa nemagetsi izvo zvinoratidzira sekupisa mune conductor, insulation uye chero zvimwe zvinhu zvesimbi mukuvaka.Chiyero chemazuva ano chinoenderana nekuti kupisa uku kunobviswa sei kuburikidza netambo yepamusoro uye munzvimbo dzakatenderedza.Kuyerwa kwekushisa kwetambo chinhu chinotaridza mune yazvino kutakura kugona kwetambo.Iyo yakanyanya tembiricha chiyero chetambo inotemerwa neiyo insulation zvinhu.

Nekusarudza ambient tembiricha sehwaro hwezvakatipoteredza, tembiricha inobvumidzwa inokwira inowanikwa kubva iyo yakakura tambo rating inogona kuverengerwa kune imwe nharaunda.Kana iyo yekupisa yekupokana kukosha kweiyo zvinhu layer mune yetambo chimiro ichizivikanwa, iyo yakayerwa ikozvino inogona kuverengerwa.

Iyo formula yekuverenga ikozvino kutakura kugona ndeye:

I = inobvumirwa ikozvino chiyero

∆Φ = Conductor tembiricha inokwira mu (K)

R= Kuchinjana kwazvino kupikisa pahurefu hweyuniti ye conductor patembiricha yekushanda yakanyanya (Ω/m)

Wd = kurasikirwa kwedielectric pahurefu hweyuniti yekuvharisa yakatenderedza conductor (W / m)

T1 = Thermal kuramba pahurefu hweyuniti pakati pe conductor uye sheath (K m/W)

T2 = kupikisa kwemafuta pakureba kweyekubhedha pakati pesheath nenhumbi dzokurwa nadzo (K m/W)

T3 = kupisa kwemafuta pakureba kweyuniti yekunze Sheath yetambo (K m/W)

T4 = kupisa kwekupisa pahurefu hweyuniti pakati petambo yepasi uye yakatenderedza svikiro (K m/W)

n = nhamba yevanotakura-kutakura ma conductor mutambo (maconductor akaenzana saizi uye akatakura mutoro wakafanana)

λ1 = Ratio yekurasikirwa musheath yesimbi kusvika pakurasikirwa kwakazara mumakondukita ese mune iyo tambo

λ2 = chiyero chekurasikirwa muzvombo kusvika pakurasikirwa kwakazara mune ese maconductor mune iyo tambo.