I-voltage yocingo kagesi esetshenziswa ehhashini isuka ku-2,000 volts iye ku-10,000 volts, umthamo omkhulu kagesi wokubiya kagesi ovunyelwe yimithetho yamazwe ngamazwe ungama-volts angu-10,000, kodwa amandla akhona okukhiphayo aphansi kakhulu, lapho ukuthintana kwehhashi nocingo locingo lukagesi, ihhashi lizokwazi uthuke, ngakho ihhashi lizokhumbula ukushaqeka futhi lingafuni ukuxhumana nocingo locingo lukagesi futhi.

Ucingo lukagesi luyindlela yokonga yokugcina izilwane ngaphandle kwendawo kuze kube phakade, izilwane zizoshaqeka lapho zithinta ucingo lukagesi, khona-ke izilwane zizokhumbula ukushaqeka futhi zigcine kude nocingo locingo.