Qhov zoo ntawm hluav taws xob kev ua tau zoo yog lub hauv paus ntsiab lus rau kev ntsuam xyuas cov khoom siv cable. Qhov no feem ntau yog txiav txim siab txog qhov laj thawj ntawm cov khoom siv hluav taws xob hauv hluav taws xob hauv cov khoom siv cable, qhov tsim nyog ntawm kev ntsuas los txhim kho qhov kev faib tawm no, lub zog hluav taws xob ntawm cov khoom siv, dielectric poob, thiab rwb thaiv tsev npoo ntawm cov khoom.
Ib txhij, kev ruaj ntseg ntawm hluav taws xob kev ua tau zoo yuav tsum raug txiav txim siab, suav nrog cov khoom siv tshuaj thiab lub cev thiab kev ruaj ntseg ntawm cov khoom siv cable. Piv txwv li, kev ruaj ntseg ntawm cov ntaub ntawv tswj kev ntxhov siab, qhov cuam tshuam ntawm kev ntxhov siab cones rau deformation, cuam tshuam ntawm cable rwb thaiv tsev shrinkage ntawm cov hluav taws xob hluav taws xob ntawm cov khoom siv hluav taws xob thiab kev tiv thaiv kev ntsuas, kev sib raug zoo ntawm ntau yam khoom sib txuas, thiab kev ruaj ntseg ntawm cov khoom siv sib txuas. Tsis tas li ntawd, cov thermal kev ua tau zoo ntawm cov khoom siv hluav taws xob yuav tsum raug txiav txim siab, xws li dielectric poob, kev tiv thaiv kev tiv thaiv thiab kev ruaj ntseg ntawm kev sib txuas ntawm tus neeg xyuas pib, kev siv hluav taws xob thiab kev tso tawm, thiab qhov cuam tshuam ntawm thermal expansion thiab contraction ntawm cov hluav taws xob thiab cov khoom siv hluav taws xob ntawm ntau yam khoom.
