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Electric igniters with a platinum-iridium bridgewire

Electric igniters with a platinum-iridium bridgewire are intended for initiating detonator caps and igniting propellant charges. The electric igniter consists of a bridgewire soldered to the ends of two insulated wires and a drop of ignition composition applied to the bridgewire and covered with a waterproofing layer. To protect against mechanical damage, the bridgewire with the drop is placed in a case.

They are manufactured in two types: in a copper case with a mastic plug and in an aluminum case with a plastic compound plug.

Tactical and technical characteristics of the electric igniter with a platinum-iridium bridgewire

Bridgewire diameter
22-26 µm
Cold resistance
0.9-1.5 Ohm
Ignition composition
Potassium chlorate and lead thiocyanate
Electric igniters: a — НХ-10-1,5 (НХ-ПЧ); b — with a platinum-iridium bridgewire and copper case; c — with a platinum-iridium bridgewire and aluminum case; 1 — wires; 2 — bridgewire; 3 — ignition composition; 4 — case; 5 — mastic plug; 6 — plastic compound plug.
Electric igniters: a — НХ-10-1,5 (НХ-ПЧ); b — with a platinum-iridium bridgewire and copper case; c — with a platinum-iridium bridgewire and aluminum case; 1 — wires; 2 — bridgewire; 3 — ignition composition; 4 — case; 5 — mastic plug; 6 — plastic compound plug.
Electric igniters: a — НХ-10-1,5 (НХ-ПЧ); b — with a platinum-iridium bridgewire and copper case; c — with a platinum-iridium bridgewire and aluminum case; 1 — wires; 2 — bridgewire; 3 — ignition composition; 4 — case; 5 — mastic plug; 6 — plastic compound plug.