detonating cord

Detonating cord, also known as detonating fuse, is a type of explosive device that resembles safety fuse but contains a high explosive core instead of black powder. The first successful detonating cord, patented in 1908, used TNT. Modern versions, like Primacord developed in 1936, utilize PETN or RDX for higher velocities and performance, especially in high-temperature conditions.1

Detonating cords are crucial in blasting operations, allowing for flexible connection patterns of multiple holes. They are initiated by blasting caps and can be used for sequential firing with delay connectors. Unlike deflagrating explosives (low explosives), detonating cords are high explosives characterized by rapid decomposition and the development of high pressure.12