Igeragezwa ryokwirinda impapuro - iziritse hamwe na reberi - plastike - insinga zikingiwe muri rusange zirimo gusa kurwanya insulasiyo no kwihanganira ibizamini bya voltage.
Mugihe cyo kugerageza insinga irwanya insinga, nyamuneka menya ibi bikurikira:
1) Uburyo bwo gupima insulasiyo ikwiranye ninsinga z'uburebure buke. Megohmmeter isanzwe ikoreshwa mugupima no kubara igipimo cyo kwinjiza. Mugihe kimwe cyibizamini, nibyiza insinga, niko igipimo cyo kwinjiza.
2) Mubusanzwe ntamategeko yihariye agenga indangagaciro zo kurwanya insinga. Imiterere yo kubika insinga igomba kugenwa no kuyigereranya ninyandiko zumwimerere. Kuberako ubushyuhe bugira ingaruka kuburwanya bwumugozi, ibihe byikirere nkubushyuhe bwikirere nubushuhe bigomba kwandikwa mugihe cyo kugerageza insinga kugirango ugereranye.
3) Megohmmeter yo gukoresha: Kumugozi ufite voltage munsi ya 1 kV, koresha megohmmeter 500-1000 V; kuri insinga zifite voltage ya 1 kV no hejuru, koresha megohmmeter 1000-2500 V.
4) Mbere yo kwipimisha, umugozi ugomba gusohorwa neza kandi ugahita ushiramo intoki ziyobora hamwe nicyuma cyicyuma.
5) Mbere yo kwipimisha, sukura hejuru yumurongo wa kabili kugirango ugabanye amazi. Koresha urundi rugozi rwiziritse nkumuzingo ukingira. Huza abayobora kumpande zombi zuru rugingo rwiziritse ku ntoki cyangwa izirinda ingirangingo zipimishije zipimishwa ninsinga zicyuma zoroshye, kuzizinga inshuro nyinshi mbere yo kuzihuza na terefone ya megohmmeter.
6) Nyuma ya buri gipimo cyo kurwanya insulation, gusohora no hasi umugozi. Umwanya muremure, niko ibintu bimeze neza. Igihe cyo guhagarara kigomba kuba kirekire, muri rusange byibuze umunota umwe.
DC ihangane na voltage ikizamini nikizamini cyibanze cyogutanga imiyoboro ya kabili cyangwa ikizamini cyo gukumira, kandi nayo niyo shingiro ryibanze ryo kumenya niba umurongo wa kabili ubereye gukora. Intsinga zikoresha zigomba gukorerwa DC isanzwe ihanganye nigeragezwa rya voltage, kandi nogusohora umuyaga nabyo bigomba gupimwa.
