Cov kab hluav taws xob siv hluav taws xob muaj feem cuam tshuam rau huab cua xws li cua, dej khov, thiab qhov kub thiab txias, ua rau muaj kev vibration thiab seev cev ntawm cov kab. Lub vibration zaus yog siab tab sis lub amplitude yog me me. Cua vibration ua rau lub overhead hlau yuav tsum rov khoov ntawm qhov chaw ncua kev kawm ntawv, ua rau cov khoom qaug zog thiab thaum kawg ua rau tawg strands thiab hlau raug mob. Qhov zaus ntawm kev seev cev yog qhov tsawg heev, tab sis qhov amplitude yog qhov loj, uas tuaj yeem yooj yim ua rau theem mus rau theem flashover, ua rau muaj teeb meem loj xws li kab tripping, fais fab tuag, lossis hluav taws kub ntawm cov xov hlau. Lub shock absorber tsuas yog ib daim hlau pas nrig. Vim nws qhov txuas ntawm qhov ncua sij hawm ntawm qhov sib kis ntauwd, nws absorbs lossis txo lub zog vibration, hloov cov zaus oscillation ntawm cov kab sib txuas, thiab tiv thaiv kev vibration lossis seev cev ntawm cov kab sib kis.