Vim li cas lub xov tooj kub muab faib ua ib qho rwb thaiv tsev thiab ob lub tsho? Qhov txawv yog dab tsi?

Ib qho insulation yog dab tsi?
Nws yog los qhwv ib txheej ntawm cov khoom siv roj hmab nyob ib ncig ntawm lub cev hlau ntawm cov kab cua sov lossis lwm yam hlau lossis hlau, hu ua insulator. Ib qho insulator tuaj yeem yog txhua yam ntawm cov khoom siv roj hmab, tsuav nws ua tau raws li lossis tuaj yeem ncav cuag ib qho hluav taws xob tiv thaiv tus qauv. Feem ntau, qhov hluav taws xob tiv taus tus qauv yog 300V, uas txhais tau hais tias tus qauv voltage yuav tsum siab tshaj qhov kev khiav hauj lwm voltage, thiaj li yuav tau txais kev tiv thaiv kev nyab xeeb!
Dab tsi yog ob chav sheath?
Ob chav sheathing yog cov txheej txheem ntawm kev ntxiv ib txheej ntxiv ntawm rwb thaiv tsev rau sab saum toj ntawm cov khoom los txhim kho nws cov khoom tiv thaiv hluav taws xob. Feem ntau, lub hom phiaj ntawm qhov yuav tsum tau ua yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau tiv thaiv qhov hluav taws xob, uas feem ntau yog ua tiav thaum cov neeg siv khoom muaj kev txwv nruj thiab cov tuam ntxhab tsis muaj kev tiv thaiv. Muaj qhov zoo thiab qhov tsis zoo, tab sis tib lub sijhawm, nws yuav txi cov nqi. Tsuas yog qee cov khoom lag luam European lossis German tus qauv xav tau qhov no, thiab tib neeg tsis quav ntsej txog cov nqi, tsuav lawv ua tau raws li qhov xav tau sib txawv!