A small copper or aluminium tube, sealed at one end, containing a flashing mixture... The heating effect of an electric current flowing through a bridge-wire ignites the flash composition and fires the detonator which in turn sets off the explosive charge in the shothole., electric blasting cap - a device for detonating charges of explosives electrically. It consists essentially of a blasting cap, into the charge of which a fine platinum wire is stretched across two protruding copper wires, the whole fastened in place by a crimp or plug. The heating of the platinum wire bridge by the electric current ignites the explosive charge in the cap, which in turn detonates the high explosive., lõhkeseadis, mis koosneb ühisesse hülssi pressitud kapseldetonaatorist ja süütepeast (lühiviit- ja viittegevusega elektridetonaatoril ka viiteelemendist) ning elektrijuhtmetest