1A007Equipment and devices, specially designed to initiate charges and devices containing "energetic materials", by electrical means, as follows:

N.B. SEE ALSO MILITARY GOODS CONTROLS, 3A229 AND 3A232.
Technical Note:
For the purposes of 1A007, the word initiator or igniter is sometimes used in place of the word detonator.
a. Explosive detonator firing sets designed to drive explosive detonators specified in 1A007.b.;
b. Electrically driven explosive detonators as follows:
1. Exploding bridge (EB);
2. Exploding bridge wire (EBW);
3. Slapper;
4. Exploding foil initiators (EFI).
Technical Note:
For the purposes of 1A007.b., the detonators of concern all utilise a small electrical conductor (bridge, bridge wire or foil) that explosively vaporises when a fast, high-current electrical pulse is passed through it. In non-slapper types, the exploding conductor starts a chemical detonation in a contacting high explosive material such as PETN (pentaerythritoltetranitrate). In slapper detonators, the explosive vaporization of the electrical conductor drives a flyer or slapper across a gap, and the impact of the slapper on an explosive starts a chemical detonation. The slapper in some designs is driven by magnetic force. The term exploding foil detonator may refer to either an EB or a slapper-type detonator.