FIELD: electric and plasma arc equipment. SUBSTANCE: method involves application of disperse material to current terminals and active surfaces of electrodes, keeping electric conductance of electrodes and voltage level for ignition and keeping constant stable electric arc. In addition method provides system of gas flows to make electrodes with active surfaces which angle is equal to natural slope angle of disperse material and mirror-like shape for adjacent electrodes. EFFECT: automatic supply of particles, possibility to combine ignition and keeping arc discharge using single power supply and simplified design of current feeding members. 5 cl, 2 dwg
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