Electrode e nyane ea bophara ba graphite, e bophara ba ho tloha ho 75mm ho isa ho 225mm, bophara bo bonyenyane ba li-electrode tsa rona tsa graphite li etsa hore li tšoanelehe haholo bakeng sa ts'ebetso ea ho qhibilihisa e nepahetseng. Hore na o hloka ho hlahisa calcium carbide, ho hloekisa carborundum, kapa ho qhibilihisa litšepe tse sa tloaelehang, li-electrode tsa rona li fana ka tharollo e nepahetseng. Ka matla a bona a ho hanyetsa mocheso o phahameng le conductivity e babatsehang, li-electrode tsa rona tsa graphite li netefatsa mekhoa e metle le e sebetsang ea ho qhibilihisa, e u nolofalletsang ho finyella liphello tse nepahetseng mesebetsing ea hau.