Cov yam ntxwv cuam tshuam rau rwb thaiv tsev tsis kam ntawm cov khoom siv hlau thiab cable

Lub rwb thaiv tsev tsis kam ntawm cov khoom siv hlau thiab cable Feem ntau ntsuas qhov ntim tsis kam ntawm cov kab hluav taws xob rwb thaiv tsev txheej, qhov chaw tiv thaiv tsis tuaj yeem ntsuas, thiab ntau yam cuam tshuam rau tus nqi ntawm cable rwb thaiv tsev tsis kam. Nyob rau hauv kev siv tswv yim, muaj plaub yam tseem ceeb ntawm cov rwb thaiv tsev coefficient.

1. Kub cuam tshuam:: Raws li qhov kub thiab txias nce, cov rwb thaiv tsev tsis kam txo qis vim qhov nce hauv thermal txav thiab nce hauv ion tiam thiab tsiv teb tsaws. Nyob rau hauv qhov kev txiav txim ntawm voltage, cov conduction tam sim no tsim los ntawm ion zog nce, yog li cov rwb thaiv tsev tsis kam txo. Txoj kev xav thiab kev xyaum qhia tau hais tias cov rwb thaiv tsev coefficient txo qis exponentially nrog qhov kub thiab txias, thaum lub conductivity nce exponentially nrog nce nyob rau hauv qhov kub thiab txias.

2. Electric teb lub zog nyhuv: thaum nyob hauv qhov qis, lub zog teb hluav taws xob kom lub zog ion nce nrog lub zog hluav taws xob, ion tam sim no thiab lub zog hluav taws xob ua raws li Ohm txoj cai. Thaum lub zog hluav taws xob muaj zog dua, lub ion txav tau nce nrog lub zog hluav taws xob, txoj kev sib hloov maj mam hloov ntawm txoj kev sib raug zoo mus rau kev sib raug zoo exponential, Thaum nyob ze rau kev tawg yuav muaj ntau yam electron tsiv teb tsaws. Lub sijhawm no, lub rwb thaiv tsev tiv thaiv qhov tseem ceeb yog txo qis heev.

3. Humidity cuam tshuam: vim qhov me me hluav taws xob conductivity thiab qhov loj ntawm cov dej molecules yog ntau me dua cov polymer molecules. Raws li cov thermal nyhuv ntawm polymer macromolecules thiab cov txheeb ze ntawm cov saw txuas, dej molecules yooj yim nkag mus rau lub polymer. Ua kom cov polymer conductive ions nce, rwb thaiv tsev tsis kam txo.

4. Khoom purity cuam tshuam: cov khoom yog tov nrog impurities, nce cov conductive hais nyob rau hauv cov khoom kom lub rwb thaiv tsev kuj txo. Yog li ntawd, qhov luaj li cas ntawm cov rwb thaiv tsev tsis kam ntawm cov khoom siv roj hmab thiab cov yas yuav cuam tshuam qhov purity ntawm cov khoom, los xyuas seb nws puas ua tau raws li cov qauv kev cai. Nyob rau hauv cov txheej txheem ntau lawm ntawm hlau thiab cable, tsis nruj me ntsis ua raws li cov txheej txheem kev khiav hauj lwm, tov nrog impurities, cov ntaub ntawv noo noo blistering, rwb thaiv tsev ib feem ntawm cov tub ntxhais los yog sab nraud txoj kab uas hla loj dua li cov qauv kev cai, tawg nyob rau hauv lub rwb thaiv tsev txheej los yog rwb thaiv tsev khawb, lwm yam., yuav ua rau cov rwb thaiv tsev tsis kam ntawm cov khoom raug txo. Yog li ntawd, Nws yog ib qho tsim nyog los xyuas cov rwb thaiv tsev tiv thaiv thaum ua haujlwm los xyuas seb puas muaj teeb meem. Thaum siv Hlau thiab Cable, Kev ntsuas qhov hloov ntawm cov rwb thaiv tsev kuj tseem tuaj yeem tshawb xyuas qhov kev puas tsuaj rau cov rwb thaiv tsev thiab tiv thaiv kom tsis txhob muaj xwm txheej tshwm sim.