Moko oa motlakase oa motlakase o entsoe haholo-holo ka li-conductor tse ngata, tse arotsoeng ka li-core core, tse peli tsa mantlha le tse tharo.

Lithapo tsa mantlha li sebelisoa haholo ho li-circuits tsa AC le DC tsa karolo e le 'ngoe, athe likhoele tse tharo tsa mantlha li sebelisoa haholo mehatong e meraro ea AC.

lipotoloho.Bakeng sa likhoele tsa mantlha, kamano pakeng tsa bophara ba mantlha le bophara ba cable e kantle e batla e le bonolo.Ka kakaretso,

bophara ba terata ke hoo e ka bang 20% ​​ho isa ho 30% ea bophara ba ka ntle ba cable.Ka hona, re ka hakanya bophara ba mantlha ka ho metha

bophara ba ka ntle ba thapo.

Bakeng sa likhoele tse tharo tsa mantlha, kaha hona joale ea mekhahlelo e meraro e tla hlahisa matla a khoheli ho li-conductor, tšusumetso ea sebaka.

pakeng tsa li-conductor le lera la ho kenya li lokela ho nahanoa.Ka hona, ha u bala bophara ba ka ntle ba cable,

lintlha tse kang conductor cross-sectional sebakeng seo, sebaka se pakeng tsa conductors le botenya ba insulation lera hloka

ho nahanoa.Joale u ka bala bophara ba ka ntle ba mohala joang?Ha re shebeng ka tlase.

▌01 Mokhoa oa bophara ba ka ntle ba cable

Lintlha tse latelang li lokela ho nahanoa ha ho baloa bophara ba ka ntle ba cable:

1. Bophara ba ka ntle ba conductor: bophara ba mokhanni ka hare ho mohala;

2. Botenya ba lera la insulation: botenya ba lera la ho kenya ka hare la mohala;

3. Botenya ba Sheath: botenya ba lekhapa le kantle la thapo;

4. Palo ea li-cable cores: palo ea li-cable cores ka hare ho mohala.

Ha ho nahanoa ka lintlha tse kaholimo, mokhoa o latelang o ka sebelisoa ho bala bophara ba ka ntle ba thapo:

Botenya ba kantle = conductor bophara ba bokantle + 2 × botenya ba lera la ho kenya + 2 × botenya ba sheath

Har'a bona, bophara bo ka ntle ba mokhanni bo ka fumanoa ka ho buisana le bukana kapa ho lekanya ho ea ka

litlhaloso tsa conductor;botenya ba lera la ho kenya letsoho le botenya ba sheath bo ka fumanoa ka ho buisana

litlhaloso tsa thapo kapa ho metha.

Hoa lokela ho hlokomeloa hore foromo e ka holimo e sebetsa ho likhoele tse le 'ngoe.Haeba e le thapo ea li-multi-core, e hloka ho baloa ho latela

ka foromo e latelang:

Botenya ba ka ntle = (bophara bo ka ntle ba mokhanni + 2 × botenya ba lera la ho kenya letsoho + 2 × botenya ba sheath) × palo ea li-cable cores + 10%

Ha u bala bophara bo ka ntle ba thapo ea li-multi-core, mamello ea 10% e hloka ho eketsoa sephethong.

▌02 Litlhokomelo tse amanang

1. Pele o bala, o lokela ho netefatsa ka hloko lintlha tsa thapo, sebaka sa conductor cross-sectional le lintlha tse ling ho

netefatsa bonnete ba palo;

2. Ha ho baloa, hoa hlokahala ho nahana ka tikoloho ea tšebeliso ea mohala, joalo ka ka tlas'a lefatše, ka holim'a lefatše, holimo.

le libaka tse ling, hobane libaka tse fapaneng tsa ts'ebeliso li hloka lisebelisoa tse fapaneng tsa sheath ho khethoa;

3. Ha u bala, u boetse u lokela ho nahana ka mokhoa oa ho kenya mohala, o kang o tsitsitseng kapa o tsamaeang, o tla ama

boholo le matla a thata a cable;

4. Ela hloko mamello ha u bala bophara ba ka ntle ba mohala, 'me u etse qeto ea hore na mamello e itseng e hloka ho

ho eketsoa sephethong sa lipalo ho ipapisitsoe le maemo a nnete.

Ka bokhutšoanyane, palo ea bophara ba ka ntle ea mohala e hloka ho nahanela ka botlalo lintlha tse ngata.Haeba ha u joalo

bonnete mabapi le mokhoa oa ho bala kapa li-parameter, o lokela ho buisana le setsebi kapa ho buisana le tlhahisoleseding e nepahetseng.