Ukuvuza komhlaba ngumbane ofikelela emhlabeni ngendlela engalindelekanga. Kukho iindidi ezimbini: ukuvuza komhlaba okungeyonjongo okubangelwa kukufakelwa okanye ukusilela kwezixhobo kunye nokuvuza komhlaba okungeyonjongo okubangelwa yindlela eyilwe ngayo izixhobo. Ukuvuza "koyilo" kunokubonakala kungaqhelekanga, kodwa ngamanye amaxesha akunakuphepheka-umzekelo, izixhobo ze-IT zihlala zivelisa ukuvuza nokuba zisebenza kakuhle.
Nokuba ivela phi na imvelaphi yokuvuza, kufuneka kuthintelwe ukuba kungabangela ukubetheka kombane. Oku kudla ngokwenziwa ngokusebenzisa i-RCD (isixhobo sokukhusela ukuvuza) okanye i-RCBO (i-leakage circuit breaker enokhuseleko olugqithisileyo). Balinganisa umbane kwi-line conductor baze bawuthelekise nombane kwi-neutral conductor. Ukuba umahluko udlula i-mA rating ye-RCD okanye i-RCBO, iya kukhubeka.
Kwiimeko ezininzi, ukuvuza kuya kusebenza njengoko kulindelekile, kodwa ngamanye amaxesha i-RCD okanye i-RCBO ziya kuqhubeka nokukhubeka ngaphandle kwesizathu-oku "kukuhamba okucaphukisayo". Eyona ndlela ilungileyo yokusombulula le ngxaki kukusebenzisa imitha ye-leaking clamp, efana ne-Megger DCM305E. Le ibotshelelwe kwintambo kunye ne-neutral conductor (kodwa hayi i-protective conductor!), kwaye ilinganisa umsinga wokuvuza komhlaba.
Ukuze ubone ukuba yeyiphi isekethe ebangele ukutyibilika okungeyonyani, cima zonke ii-MCB kwiyunithi esebenzisa umbane kwaye ubeke i-ground leaking clamp ejikeleze intambo yombane. Vula isekethe nganye ngokulandelelana. Ukuba ibangela ukwanda okukhulu kokuvuza, oku kunokuba yisekethe eyingxaki. Inyathelo elilandelayo kukufumanisa ukuba ukuvuza bekungabom na. Ukuba kunjalo, kufuneka uhlobo oluthile lokusasaza umthwalo okanye ukwahlulwa kwesekethe. Ukuba kukuvuza okungengonjongo—isiphumo sokusilela—ukusilela kufuneka kufunyanwe kwaye kulungiswe.
Ungalibali ukuba ingxaki isenokuba yi-RCD okanye i-RCBO engalunganga. Ukuze ujonge, yenza uvavanyo lwe-RCD ramp. Kwimeko yesixhobo se-30 mA-esona sixhobo siqhelekileyo-kufuneka sidlule phakathi kwe-24 kunye ne-28 mA. Ukuba sidlula ngombane ophantsi, kunokufuneka sitshintshwe.