Thaum lub sijhawm ua haujlwm ib txwm muaj, lub voj voog ntawm lub thawv xa khoom tuaj yeem hloov mus rau lossis tawm los ntawm phau ntawv lossis hloov tsis siv neeg. Nyob rau hauv rooj plaub ntawm kev ua haujlwm txawv txav, txiav tawm lub voj voog lossis muab lub tswb nrov los ntawm kev siv cov khoom siv tiv thaiv. Ntau yam tsis zoo hauv kev ua haujlwm tuaj yeem pom los ntawm qhov ntsuas qhov saum npoo, thiab qee qhov hluav taws xob tsis tuaj yeem hloov kho kom sai lossis teeb liab sib txawv ntawm lub xeev ua haujlwm.
Nyob rau hauv cov txheej txheem ntawm cov khoom siv hluav taws xob, peb yuav tsum tau txuas cov xaim nrog cov khoom siv, kev tswj kev hloov, lub thawv xa khoom, thiab lwm yam. Vim tias qhov loj ntawm cov hlau seem, cov xaim nrog cov seem me me feem ntau yog ib qho tseem ceeb ntawm cov hlau hauv kev ua haujlwm tiag tiag, xws li BV-3 * 2.5 (tooj liab core yas rwb thaiv tsev, peb ib tug tub ntxhais nyob ntawm tej). Thaum xws li cov xaim txuas nrog lub thawv xa khoom, nws tuaj yeem raug crimped nrog lub thawv xa khoom kom ntev li ntev tau raws li cov txheej txheem rwb thaiv tsev ntawm cov hlau kawg raug stripped, uas txhais tau hais tias cov xaim kawg tsis tas yuav tsum tau ua.lub davhlau ya nyob twg(tseem hu ua lub qhov ntswg xaim), uas yog hu ua terminal free sab nraud thaiv hauv pob nyiaj siv. Tsis tas li ntawd, me me cross-section conductors kuj muaj ntau yam strands, xws li hloov tau yooj yim conductors (BVR), uas yog tsim los ntawm ntau cov strands zoo tooj liab hlau. Thaum cov hlau zoo li no txuas nrog cov khoom siv lossis hloov, cov xov tooj ntawm cov xov tooj sib txuas feem ntau yog txuas nrog lub tes tsho hlau, uas yog lub davhlau ya nyob twg, feem ntau hu ua lub qhov ntswg hlau. Nyob rau hauv pob nyiaj siv, qhov no yog hu ua sab nraud thaiv nrog terminals. Thaum tus ntoo khaub lig-section ntawm tus neeg xyuas pib loj, tus neeg xyuas pib feem ntau muaj ntau txoj hlua khi. Nws yog ib qho tsim nyog yuav tau ua cov blocks, uas tau muab faib ua tooj liab (aluminium) vuam terminal blocks thiab tooj liab (aluminium) nias lub davhlau ya nyob twg. Cov ntaub ntawv raw ntawm cov hlau txuas txuas yog tib yam li cov xov hlau, uas txhais tau hais tias cov xov tooj ntawm cov tub ntxhais hlau yog siv los ua tooj liab hlau terminals thiab aluminium core xov hlau yog siv los ua aluminium wiring terminals. Qhov no yog hu ua soldering (nias) lub davhlau ya nyob twg thaiv hauv pob nyiaj siv.
Raws li cov khoom lag luam ntawm cov peev nyiaj tam sim no, peb tuaj yeem kos cov lus xaus hauv qab no:
1. Seem thaj tsam ntawm ib leeg tub ntxhais neeg xyuas pib yog 6 hli ² Rau cov neeg nyob hauv, xyuas cov xov hlau sab nraud yam tsis muaj lub davhlau ya nyob twg, tshaj 6 hli ² Yog tias seem loj, xyuas qhov vuam (nias) lub davhlau ya nyob twg.
2. Cov ntu ntu ntawm ntau tus neeg xyuas pib yog 6 hli ² Yog tias nws nyob hauv, cov kab hluav taws xob sab nraud nrog cov terminals yuav tsum tau kuaj xyuas, tshaj 6 hli ² Yog tias seem loj, xyuas qhov vuam (nias) lub davhlau ya nyob twg.
3. Cov khoom siv raw ntawm cov khoom siv hluav taws xob yuav tsum yog tib yam li cov xov hlau.
4. Tom qab lub vuam (nias) lub davhlau ya nyob twg raug kuaj xyuas, cov hlua txuas sab nraud ntawm lub davhlau ya nyob twg yuav tsum tsis raug kuaj xyuas.
