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Ucingo kunye nesiseko solwazi lwentambo

Intambo kunye nentambo kwingqiqo ebanzi ikwabizwa ngokuba yintambo.Ngengqiqo emxinwa, intambo ibhekisa kwintambo egqunyiweyo.Inokuchazwa njengengqokelela yocingo olunye okanye ezininzi ezigqunyiweyo, kunye nezigqubuthelo zazo ezinokwenzeka, umaleko okhuselayo opheleleyo kunye neshethi yangaphandle.Intambo inokuba nayo i-conductor ezongezelelweyo ezingafakwanga.
Iimveliso zocingo kunye nentambo yaseTshayina zahlulwe ngokwezi ndidi zintlanu zilandelayo ngokusetyenziswa kwazo:

1. ucingo olungenanto.

2. ucingo olujikajikayo.

3. iintambo zombane.

4. Iintambo zonxibelelwano kunye neentambo zonxibelelwano zefiber optic.

5. Izixhobo zombane ezinocingo kunye nekhebula.

Isakhiwo esisisiseko socingo kunye nekhebula.

1. i-conductor: into eqhuba i-current, i-wire kunye ne-cable specifikationer ichazwa ngokwecandelo le-cross-section of conductor.

2. I-Insulation: i-insulation material yangaphandle ngokweqondo layo lokumelana nombane.

Ukusebenza ngoku kunye nokubala.

Ifomula yokubala yombane (intambo) esebenzayo yangoku.
Inqanaba elinye
I=P÷(U×cosΦ)
P - amandla (W);U-U-voltage (220V);cosΦ - into yamandla (0.8);I - isigaba somgca wangoku (A).

Inqanaba lesithathu
I=P÷(U×1.732×cosΦ)
P - amandla (W);U-U-voltage (380V);cosΦ - into yamandla (0.8);I - isigaba somgca wangoku (A).
Ngokuqhelekileyo, izinga lokunqanyulwa kokhuseleko locingo lobhedu ngu-5-8A/mm2, kwaye olo lwe-aluminium luyi-3-5A/mm2.
Kumgca wesigaba esisodwa se-220V, amandla akhoyo ngoku kwi-1KW malunga ne-4-5A, kwaye kwisiphaluka sesigaba sesithathu esinomthwalo olinganayo wesigaba sesithathu, okwangoku nge-1KW amandla malunga ne-2A.
Oko kukuthi, kwisekethe yesigaba esisodwa, nganye i-square millimeter ye-copper conductor inokumelana nomthwalo we-1KW;isekethe elungeleleneyo yesigaba esithathu inokumelana ne-2-2.5KW yamandla.
Kodwa i-high current yokusebenza kwekhebula, encinci i-current current per square millimeter inokumelana.


Ixesha lokuposa: Oct-20-2022