Qhov rov tiv thaiv kev tiv thaiv tester yuav tsum muaj lub luag haujlwm kom paub qhov tseeb tias qhov chaw tiv thaiv puas nyob hauv ib qho kev ua haujlwm ib txwm muaj lossis muaj kev ua tsis tiav, seb thaj chaw tiv thaiv muaj qhov ua tsis tiav, thiab seb puas ua haujlwm poob rau thaj tsam sab nraud. Txhawm rau kom paub lub luag haujlwm no, nws yog qhov tsim nyog los tsim kev tiv thaiv lub zog raws li cov yam ntxwv ntawm hluav taws xob lub cev ntau qhov hloov pauv ua ntej thiab tom qab lub zog tsis ua haujlwm.
Tom qab lub zog hluav taws xob tsis ua hauj lwm, cov yam ntxwv tseem ceeb ntawm kev hloov pauv fais fab zaus yog:
(1) Qhov muaj nce zuj zus tam sim no.
Thaum luv luv Circuit Court tshwm sim, qhov tam sim no ntawm cov khoom siv hluav taws xob thiab kis kab nruab nrab ntawm qhov taw tes txhaum thiab lub zog hluav taws xob yuav nce los ntawm cov thauj khoom tam sim no mus rau ib theem uas zoo tshaj qhov tso tawm tam sim no.
(2) Voltage poob.
Thaum lub ntu-rau-theem luv luv Circuit Court thiab qhov teeb meem txhaum luv hauv av tshwm sim, theem-rau-theem voltage lossis theem hluav taws xob tus nqi ntawm txhua qhov taw tes ntawm lub system yuav poob qis, thiab ze rau qhov luv luv-Circuit Court kis, qis dua qhov kub thiab ntsuas hluav taws xob.
(3) Lub kaum sab xis hloov ntawm qhov tam sim no thiab qhov voltage.
Lub kaum sab xis ntawm nruab nrab ntawm qhov tam sim no thiab qhov hluav taws xob thaum lub sijhawm ua haujlwm yog lub zog qhov nruab nrab ntawm lub nra, feem ntau kwv yees li 20 °. Thaum muaj peb-theem luv Circuit Court tshwm sim, theem kaum sab xis ntawm tam sim no thiab voltage tau txiav txim siab los ntawm lub kaum sab xis ntawm txoj kab, feem ntau 60 ° ~ 85 °, thiab theem kaum sab xis ntawm tam sim no thiab voltage yog 180 ° + ( 60 ° ~ 85 °) kev tiv thaiv Peb theem nyob rau hauv kev coj rov qab yog luv-ncig.
(4) Lub ntsuas cuam tshuam hloov tau.
Lub ntsuas cuam tshuam yog qhov sib piv ntawm qhov hluav taws xob mus rau tam sim no ntawm qhov ntsuas ntsuas (tiv thaiv kev teeb tsa). Hauv kev ua haujlwm ib txwm, ntsuas kev cuam tshuam yog lub nra impedance; thaum cov hlau luv luv, ntsuas qhov ntsuas kev ua lub siab impedance. Tom qab qhov txhaum, qhov ntsuas impedance tsawg dua thiab lub kaum sab xis impedance nce.
Thaum qhov hluav taws xob tsis txaus hluav taws xob tsis tshwm sim, theem ntu cov ntu xws li cov ntu tsis zoo tam sim no thiab qhov tsis zoo hloov lub ntu hluav taws xob yuav tshwm sim thaum ob-theem thiab ib-theem av raug luv luv. Thiab ib-theem grounding, kev ua tsis zoo thiab xoom ntu tam sim no thiab voltage yam. Cov khoom no tsis muaj nyob hauv kev ua haujlwm ib txwm muaj.
Los ntawm kev siv qhov kev hloov ntawm qhov hluav taws xob ntau thaum lub sij hawm luv luv-Circuit txhaum, ntau lub ntsiab lus relay tiv thaiv tester li tuaj yeem tsim.