VIM LI CAS COV HWJ CHIM CABLES MUAJ NTAU TXHEEJ?

Cov xov hluav taws xob yog cov xov hluav taws xob uas siv ntau rau kev faib thiab xa hluav taws xob. Lawv feem ntau siv rau hauv cov chaw hluav taws xob hauv nroog, kev muab hluav taws xob sab hauv hauv kev lag luam thiab kev tsuas, thiab lwm yam. Cov neeg uas muaj qee qhov kev paub txog cov xov hluav taws xob yuav pom tias cov xov hluav taws xob muaj ntau txheej, yog li vim li cas cov xov hluav taws xob muaj ntau txheej?

Cov txheej sab nraud tshaj plaws ntawm cov xov hluav taws xob uas peb pom tau yooj yim feem ntau yog ua los ntawm roj hmab lossis roj hmab yas, uas tsis yog tsuas yog ua lub rwb thaiv tsev yooj yim xwb, tab sis kuj tiv thaiv cov xov hluav taws xob los ntawm kev puas tsuaj sab nraud. Cov xov hluav taws xob tuaj yeem muab faib ua cov xov hluav taws xob siab thiab cov xov hluav taws xob qis raws li qib hluav taws xob. Cov xov hluav taws xob siab muaj ib txheej rwb thaiv tsev, uas zoo ib yam li cov khoom siv resin fillers, thaum cov xov hluav taws xob qis tsis muaj txheej no. Yuav kom sau cov qhov sib txawv hauv cov xov hluav taws xob, ib yam dab tsi zoo li daim kab xev yuav tsum tau qhwv ib ncig ntawm txhua lub plawv.

Lub luag haujlwm ntawm txheej tiv thaiv ntawm lub xov hluav taws xob tau muab faib ua ob qhov xwm txheej. Vim tias muaj hluav taws xob loj hla lub xov hluav taws xob, yuav muaj lub zog sib nqus nyob ib puag ncig ntawm qhov hluav taws xob. Txhawm rau tiv thaiv lwm yam khoom kom tsis txhob raug cuam tshuam los ntawm qhov hluav taws xob, yuav muaj txheej tiv thaiv ntxiv rau lub xov hluav taws xob. Tsis tas li ntawd, qhov xwm txheej thib ob yog tias yog lub hauv paus cable puas lawm, qhov hluav taws xob yuav tawm thiab ntws mus rau hauv lub network grounding raws li txheej tiv thaiv, uas ua lub luag haujlwm tiv thaiv kev nyab xeeb hauv av.

Cov khoom siv hluav taws xob feem ntau yog cov tub ntxhais conductive, cov txheej insulating, thiab cov txheej tiv thaiv. Hauv kev nthuav dav, nws tuaj yeem muab faib ua cov tub ntxhais hlau conductive, txheej sab hauv semiconducting, txheej insulating, txheej sab nraud semiconducting, tiv thaiv tooj liab, filler, txheej sab hauv, txheej tiv thaiv daim kab xev hlau, thiab txheej tiv thaiv sab nraud.