Nakuba manje isiyisihloli se-voltage esithembekile, ngesikhathi sokusebenza, singabangela ubungozi obuthile kubaqhubi ngenxa yezinkinga ezithile ezifana nomthelela wabaqhubi ngokwabo noma amazwe angaphandle.Ngakho-ke, womabili amabhizinisi agxile ekukhiqizeni ukumelana nama-voltage testers kanye namabhizinisi afanelekile asebenzisa izihloli ze-voltage kufanele azame konke okusemandleni awo ukuvimbela ukwenzeka kwezingozi ezinjalo, Ngakho-ke ungalunciphisa kanjani lolu hlobo lwengozi engaba khona?
Ngokuvamile, ama-voltage tester amaningi asezingeni eliphezulu aklanywe ngohlelo olushumekiwe oluhlakaniphile lwe-anti high-voltage electric shock.Lolu hlelo lubizwa nangokuthi i-smart GFI ngamafuphi.Ingakwazi ukubona ngokuvumelana nokusetshenziswa kwamamodeli amanje.Uma inkinga yokushaqeka kukagesi nokuvuza kwenzeka, isihloli se-voltage esifanelekayo sizonqamula ngokuzenzakalelayo ukuphuma kwe-voltage ephezulu nge-millisecond eyodwa, Ukuqinisekisa ukuphepha kwabaqhubi.Ngakho-ke, ngaphansi kwezimo ezifanayo zokusebenza, oqeqeshiwe okwazi ukumelana ne-voltage tester, inqobo nje uma u-opharetha engenzi amaphutha amaningi, ngeke ahlasele ukushaqeka kukagesi opharetha nezinye izingozi.
Ukuze kuvikelwe abathengi kanye nabaqhubi, abakhiqizi bokuhlola ingcindezi badinga ukuqedela izinhlobo ezimbalwa zokuhlolwa kokuphepha lapho beqeda ukukhiqiza okokusebenza, ukuze baqinisekise ukuthi imikhiqizo ihambisana nemibandela yezimboni yesakhiwo somkhiqizo, umsebenzi kanye nenqubo yokucaciswa kwenqubo. .Kubandakanya ukuhlolwa kokumelana ne-voltage, ukuhlolwa kokufakwa kwe-insulation, njll. ukuhlolwa kokufakwa ngaphakathi kufanele kwenziwe ngaphambi kokuba izingxenye zifakwe umkhiqizi, ikakhulukazi ukuvimbela izingxenye ezingafanelekile ukuthi zifakwe emkhiqizweni futhi zidale izingozi ezingaba khona.Okwamanje, umkhiqizi oqeqeshiwe, ukukhiqizwa kwakhe, ukuhlolwa kanye nezinye izinqubo kufanele kwenziwe ngokuhambisana namazinga omhlaba e-ISO, futhi imikhiqizo yokugcina kufanele futhi ifinyelele emazingeni okunikezwa kwezitifiketi zomhlaba we-ISO, okusho ukuthi, ukusuka ezingxenyeni kuya emikhiqizweni eqediwe. kufanele sifinyelele amazinga ekhwalithi yesitifiketi somhlaba se-ISO, kungale ndlela kuphela lapho singasiphula khona kangcono izingozi ezingaba khona.Yiqiniso, ukusetshenziswa kwemishini amabhizinisi ahlobene, kodwa futhi njalo ukuhlela ukusebenza ukuqeqeshwa kwabasebenzi, entsha kumele ibe ngaphansi kokuqondisa abasebenzi abanolwazi ubudala ukusebenza, ukuze kuvinjwe ngokuphelele ingozi ebangelwa amaphutha zokusebenza.
1. Yiziphi izinzuzo ze-AC ukumelana nokuhlolwa kwe-voltage
Ngokuvamile, i-AC ukumelana ne-voltage tester kulula ukuthola ukusekelwa kwenhlangano yezokuphepha kune-DC ukumelana nesihloli se-voltage.Isizathu esiyinhloko ukuthi izinto eziningi ezihloliwe zizosebenza ngaphansi kwe-voltage ye-AC, futhi i-AC imelana nokuhlolwa kwe-voltage inikeza inzuzo yokushintshanisa ama-polarity amabili ukuze kufakwe ingcindezi ku-insulation, eseduze nengcindezi imikhiqizo ezobhekana nayo ekusetshenzisweni kwangempela.Ngenxa yokuthi ukuhlolwa kwe-AC ngeke kukhokhise umthwalo we-capacitive, ukufundwa kwamanje kuyavumelana kusukela ekuqaleni kokusetshenziswa kwe-voltage kuze kube sekupheleni kokuhlolwa.Ngakho-ke, njengoba kungekho nkinga yokuzinza edingekayo ukuze kuqashwe ukufundwa kwamanje, asikho isidingo sokwandisa i-voltage isinyathelo ngesinyathelo.Lokhu kusho ukuthi ngaphandle kokuthi umkhiqizo ongaphansi kokuhlolwa uzwa i-voltage esetshenziswe ngokuzumayo, opharetha angasebenzisa ngokushesha i-voltage egcwele futhi afunde yamanje ngaphandle kokulinda.Ngenxa yokuthi i-voltage ye-AC ngeke ikhokhise umthwalo, asikho isidingo sokukhulula okokusebenza okuhloliwe ngemva kokuhlolwa.
2. Yiziphi izinkinga zesihloli se-voltage ye-AC?
Uma i-capacitive load ihlolwa, inani lamanje liqukethe ukusabela kwamanje kanye nokuvuza kwamanje.Uma amandla okumelana nawo mkhulu kakhulu kunowamanje ovuzayo, kungase kube nzima ukuthola imikhiqizo enokuvuza okukhulu kwamandla.Lapho kuhlolwa umthwalo omkhulu we-capacitive, inani lamanje elidingekayo likhulu kakhulu kunelo lokuvuza ngokwalo.Ngenxa yokuthi u-opharetha ubhekene nokwanda kwamanje, lokhu kungase kube ingozi enkulu.
3. Yiziphi izinzuzo ze-DC ukumelana nokuhlolwa kwe-voltage?
Uma i-DUT isishajwe ngokugcwele, kugeleza ukuvuza kwangempela kwamanje.Lokhu kuvumela i-DC ukuthi imelane nethuluzi lokuhlola i-voltage ukuze ibonise ngokucacile ukuvuza kwamanje komkhiqizo ongaphansi kokuhlolwa.Ngenxa yokuthi ukushaja kwamanje kufushane, isidingo samandla se-DC esimelana ne-voltage tester ngokuvamile sincane kakhulu kunaleyo ye-AC ukumelana ne-voltage tester esetshenziselwa ukuhlola umkhiqizo ofanayo.
4. Yiziphi izinkinga ze-DC ukumelana ne-voltage tester?
Ngenxa yokuthi i-DC voltage ukumelana nokuhlolwa iyakushaja into evivinywayo (DLT), ukuze kuqedwe ingozi yokushaqeka kukagesi ku-opharetha ophethe into evivinywayo (DLT) ngemva kokuhlolwa kokumelana nomthamo, into evivinywayo (DLT) kufanele ihlolwe akhishwe ngemva kokuhlolwa.Ukuhlolwa kwe-DC kuzoshaja i-capacitor.Uma i-DUT isebenzisa amandla e-AC ngempela, indlela ye-DC ayilingisi isimo sangempela.
Isikhathi sokuthumela: Jun-24-2021
