Method of electrically blasting a plurality of detonators and electric blasting apparatus for use in said method

A method of electrically blasting a plurality of electric detonators arranged at different locations, comprising the steps of:

• arranging a plurality of electric detonators at each blasting faces, each electric detonator including leg wires;
• arranging a plurality of electric blasting devices near respective blasting faces, each electric blasting device including a charging/discharging unit;
• coupling said leg wires of electric detonators arranged at each blasting face with an electric blasting device arranged near the relevant blasting face;
• arranging a controller at a location suitable for controlling said plurality of electric blasting devices in a central control mode, said controller including a power source unit for generating a D.C. current and an ignition control unit;
• connecting said plurality of electric blasting devices to said controller by means of electric wires;
• supplying the D.C current generated by said power source unit of the controller to the electric blasting devices via said electric wires to store electric energy in said charging/discharging units in the electric blasting devices;
• and
• discharging the electric energy stored in the charging/discharging units in the electric blasting devices such that electric currents flow through the leg wires of the electric detonators to explode the electric detonators.