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Bridgewire

The high-resistance wire element within an electric detonator, typically nichrome or platinum-iridium, that converts firing current into heat to ignite the pyrotechnic primer. Bridgewire alloy composition is a forensic identifier for detonator manufacturer and product line.

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Related terms

ATF Explosives Industry Programs Branch (EIPB)Deflagration-to-detonation transition (DDT)Detonating cordElectric detonator (blasting cap)ENFSI Monopoly programmeNonel shock-tube systemPESO (Petroleum and Explosives Safety Organisation)Safety fuseUnique Identifier (UI)

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