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 th, 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 pro, lõhkeseadis, mis koosneb ühisesse hülssi pressitud kapseldetonaatorist ja süütepeast (lühiviit- ja viittegevusega elektridetonaatoril ka viiteelemendist) ning elektrijuhtmetest