Waya ndi chingwe m'njira yotakata zimatchedwanso chingwe.Mwanjira yocheperako, chingwe chimatanthawuza chingwe chotsekeredwa.Itha kufotokozedwa ngati kusonkhanitsa kwa waya umodzi kapena zingapo zotsekera, pamodzi ndi zokutira zomwe zingatheke, zosanjikiza zonse zoteteza ndi sheath yakunja.Chingwecho chikhozanso kukhala ndi ma conductor owonjezera osasunthika.
Waya ndi chingwe mankhwala China amagawidwa m'magulu asanu otsatirawa malinga ndi ntchito yawo:
2. waya wokhotakhota.
4. Zingwe zoyankhulirana ndi zingwe zoyankhulirana za fiber optic.
5. Zida zamagetsi zokhala ndi waya ndi chingwe.
Mapangidwe oyambira a waya ndi chingwe.
1. kondakitala: chinthu chomwe chimayendetsa zamakono, waya ndi zingwe zazitsulo zimafotokozedwa motsatira gawo la mtanda wa woyendetsa.
2. Insulation: zida zakunja zotchinjiriza molingana ndi kuchuluka kwake kwa kupirira voteji.
Ntchito panopa ndi mawerengedwe.
Chingwe chowerengera chamagetsi (chingwe) chogwiritsira ntchito panopa.
Gawo limodzi
I=P÷(U×cosΦ)
P - mphamvu (W);U - voteji (220V);cosΦ - mphamvu (0.8);I - gawo la mzere wapano (A).
Gawo lachitatu
I=P÷(U×1.732×cosΦ)
P - mphamvu (W);U - voteji (380V);cosΦ - mphamvu (0.8);I - gawo la mzere wapano (A).
Nthawi zambiri, kudulidwa kwachitetezo kwa waya wamkuwa ndi 5-8A/mm2, ndipo waya wa aluminiyamu ndi 3-5A/mm2.
Mu mzere wa gawo limodzi la 220V, mphamvu yamakono pa 1KW ili pafupi 4-5A, ndipo mu gawo la magawo atatu omwe ali ndi magawo atatu, mphamvu yamakono pa 1KW ili pafupi 2A.
Ndiko kunena kuti, mu gawo limodzi lagawo, 1 lalikulu millimeter yamkuwa ya conductor yamkuwa imatha kupirira mphamvu ya 1KW;gawo loyenera la magawo atatu limatha kupirira mphamvu za 2-2.5KW.
Koma mphamvu yogwiritsira ntchito chingwe ikakhala yokwera kwambiri, mphamvu yotetezeka pa sikweya millimita imodzi imatha kupirira.
Nthawi yotumiza: Oct-20-2022