FIELD: blasting operations. SUBSTANCE: the detonator has an output section, shell forming a closed space target charge containing at least an output explosive charge located inside the shell in the detonator output section. Besides, the detonator has an input made in the form of two lines, which enter the shell, both lines serve as input lines of signal transmission. Both lines are made with one or several sections in the form of a loop. Detonator initiation is effected due to the transmission of an initiating signal to the target charge via a great number of lines, at least via two. There fore, delivery of the signal is accomplished to the section of the input line made in the form of a loop and having two ends installed in the detonator. EFFECT: enhanced reliability of actuation. 13 cl, 15 dwg
