Undoqo wekhebula lamandla liqulunqwe ikakhulu ngabaqhubi abaninzi, abahlulwe baba ngundoqo omnye, isiseko esiphindwe kabini kunye nesiseko esithathu.

Iintambo ezinondoqo omnye zisetyenziswa ikakhulu kwisigaba esinye se-AC kunye neesekethe ze-DC, ngelixa iintambo ezingundoqo ezintathu zisetyenziswa ikakhulu kwisigaba sesithathu se-AC.

iisekethe.Kwiintambo ezisisiseko esisodwa, ubudlelwane phakathi kobubanzi obungundoqo kunye nedayamitha yangaphandle yekhebula ilula.Ngokubanzi,

i-wire core diameter imalunga ne-20% ukuya kwi-30% ye-diameter yangaphandle yentambo.Ngoko ke, sinokuqikelela i-diameter engundoqo ngokulinganisa

i-diameter yangaphandle yentambo.

Kwiintambo ezingundoqo ezintathu, ekubeni inqanaba lesithathu langoku liya kuvelisa intsimi yamagnetic kubaqhubi, impembelelo yendawo.

phakathi kwabaqhubi kunye ne-insulation layer kufuneka kuqwalaselwe.Ke ngoko, xa ubala i-diameter yangaphandle yentambo,

Imiba efana ne-conductor cross-sectional area, isithuba phakathi kwee-conductor kunye nobukhulu be-insulation layer need

ukuba ithathelwe ingqalelo.Ngoko indlela yokubala ububanzi bangaphandle bekhebula?Makhe sijonge ngezantsi.

▌01 Indlela yedayamitha yentambo yangaphandle

Ezi zinto zilandelayo kufuneka ziqwalaselwe xa kubalwa i-diameter yangaphandle yentambo:

1. I-conductor yangaphandle ye-diameter: ububanzi bomqhubi ngaphakathi kwentambo;

2. Ubunzima bomaleko we-Insulation: ubukhulu bomgangatho wangaphakathi wentambo yentambo;

3. Ubungqingqwa besheat: ubukhulu be-sheath engaphandle yentambo;

4. Inani leentsimbi zentambo: inani leentsimbi zentambo ngaphakathi kwentambo.

Ukuthathela ingqalelo le miba ingasentla, le fomula ilandelayo ingasetyenziselwa ukubala i-diameter yangaphandle yentambo:

Idayamitha yangaphandle = i-conductor idayamitha yangaphandle + 2 × umaleko wokugquma ubukhulu + 2 × ubukhulu beshethi

Phakathi kwabo, ububanzi obungaphandle bomqhubi unokufumaneka ngokubonisana nencwadana okanye ukulinganisa ngokuhambelana

iinkcukacha zomqhubi;ubuninzi bomgca we-insulation kunye nobukhulu be-sheath bunokufumaneka ngokubonisana

iinkcukacha zentambo okanye umlinganiselo.

Kufuneka kuqatshelwe ukuba le fomyula ingentla iyasebenza kwiintambo zondoqo omnye.Ukuba i-multi-core cable, kufuneka ibalwe ngokuhambelana

kule fomula ilandelayo:

Idayamitha yangaphandle = (i-diameter yangaphandle ye-conductor + 2 × insulation layer thickness + 2 × sheath thickness) × inani leentsimbi zentambo + 10%

Xa ubala i-diameter yangaphandle ye-multi-core cable, ukunyamezela kwe-10% kufuneka kufakwe kwisiphumo.

▌02 Izilumkiso ezinxulumeneyo

1. Phambi kokubala, kufuneka uqinisekise ngononophelo iinkcukacha zentambo, i-conductor cross-sectional area kunye nolunye ulwazi.

qinisekisa ukuchaneka kokubala;

2. Xa kubalwa, kuyimfuneko ukuqwalasela indawo yokusetyenziswa kwentambo, njengangaphantsi komhlaba, ngaphezu komhlaba, phezulu.

kunye nezinye iimeko-bume, kuba iimeko ezahlukeneyo zokusetyenziswa zifuna izixhobo ezahlukeneyo zesheath ukuba zikhethwe;

3. Xa ubala, kufuneka kwakhona uqwalasele indlela yokufakela intambo, enje ngesigxina okanye eshukumayo, eya kuchaphazela

ubungakanani kunye namandla okuqina kwentambo;

4. Nika ingqalelo ukunyamezela xa ubala i-diameter yangaphandle yentambo, kwaye wenze isigqibo sokuba ngaba ukunyamezela okuthile kufuneka

kongezwe kwisiphumo sokubala ngokusekelwe kwimeko kanye.

Ngamafutshane, ukubalwa kobubanzi obungaphandle bekhebula kufuna ukuqwalaselwa ngokubanzi kwezinto ezininzi.Ukuba awukho

uqinisekile malunga nendlela yokubala okanye iiparamitha, kufuneka udibane nochwepheshe okanye uqhagamshelane nolwazi olufanelekileyo.