Raws li IEC thiab cov qauv tseem ceeb hauv lub tebchaws, qhov ntsuas qhov sib piv ntawm qhov hloov pauv yog qhov yuav tsum tau ua thaum lub sijhawm tsim khoom, tus neeg siv khoom xa tuaj, thiab kho dua tshiab ntawm lub zog hloov pauv.Qhov no tuaj yeem tswj xyuas qhov zoo ntawm cov khoom siv transformer thaum lub sij hawm xa khoom thiab siv, thiab tiv thaiv luv luv Circuit Court, qhib Circuit Court, tsis ncaj ncees lawm kev twb kev txuas ntawm transformer lem, thiab sab hauv tsis ua hauj lwm los yog kev sib cuag tsis ua hauj lwm ntawm lub regulator hloov.
Vim li no, tus piv tester GDB-II tau tsim thiab tsim los ntawm peb lub tuam txhab ua rau kev ua haujlwm yooj yim dua, ua tiav cov haujlwm, cov ntaub ntawv ruaj khov thiab txhim khu kev qha, thiab txhim kho cov kev ntsuas nrawm raws li tus neeg siv khoom siv ntawm qhov kev xav tau ntawm thawj lub hauv paus.Nws ua tau raws li cov kev xav tau ntawm ntau yam loj, nruab nrab, thiab cov roj hloov pauv me me ntsuas ntsuas.