Abstract: A pseudospark switch including an insulator which can withstand high temperature plasma and is arranged between both electrodes thereof, thereby being capable of preventing the electrodes from being damaged while allowing a large amount of charge to flow instantaneously. The high power pseudospark switch includes first and second hollow electrodes facing each other, the hollow electrodes being open at facing ends thereof and closed at opposite ends thereof, respectively, an inert gas inlet port provided at the closed end wall of the first hollow electrode, a vacuum pump connecting port provided at the closed end wall of the second hollow electrode, a first electrode arranged at the open end of the first hollow electrode, a second electrode arranged at the open end of the second hollow electrode in such a manner that it faces the first electrode, and an insulator interposed between the first and second electrodes.

Abstract: A rock fragmentation system using Gold Schmidt method and process for blasting using the machine are provided, wherein the blasting machine has a capacitor bank, a switch, a high voltage electric power supply, a first charge dump and a second charge dump, and an electrode assembly which is connected to capacitor bank and switch with a coxial cable and electrodes at a lower end of the electrode assembly, wherein an aluminum and metal oxide composition of a predetermined mixture ratio is inserted between electrodes in a lower end of the electrode assembly for generating an instant reaction energy by discharging the electric energy.