ABSTRACT
This chapter discusses the characteristics of the different initiation devices for both groups, along with other useful elements for the correct execution of blastings. The blasting cap placed at one of the ends of the cord is similar to the electric version, with the only difference being that the ignitor is the cord itself, and it is usually finished off by a plastic connector. Shock tube systems consist in a thin transparent plastic tube lined by a light coating of explosive of approximately 20 mg/m and a detonator that is similar to an electric blasting cap. The initiation can be carried out by means of a detonation cord, an electric blasting cap, or with a special pistol charged with blank cartridges. Millisecond delay connectors are accessories that when connected at intervals along the trunkline of detonating cord produce delay periods for transmission of the detonation wave.
