Nonel is a shock tube detonator designed to initiate explosions, generally for the purpose of demolition of buildings and for use in the blasting of rock in mines and quarries. Nonel is a contraction of "non electric".[1] Instead of electric wires, a hollow plastic tube delivers the firing impulse to the detonator, making it immune to most of the hazards associated with stray electric current.
It consists of a small diameter, three-layer plastic tube coated on the innermost wall with a reactive explosive compound, which, when ignited, propagates a low energy signal, similar to a dust explosion. The reaction travels at approximately 2,000 m/s (6,500 ft/s) along the length of the tubing with minimal disturbance outside of the tube.
Nonel was invented by the Swedish company Nitro Nobel in the 1960s and 1970s,[2] under the leadership of Per-Anders Persson,[3] and launched to the demolitions market in 1973.[4] (Nitro Nobel became a part of Dyno Nobel after being sold to Norwegian Dyno Industrier AS in 1986.)
References
edit- ^ Non-Electric (firing system for explosives) The Free Dictionary. Retrieved 13 February 2023
- ^ "Home". dynonobel.com.
- ^ Anderson, Susan Heller (5 March 1990). "Chronicle". The New York Times – via NYTimes.com.
- ^ "Archived copy" (PDF). Archived from the original (PDF) on 21 August 2006. Retrieved 28 December 2006.
{{cite web}}: CS1 maint: archived copy as title (link)
- Kathryn, Podoliak (21 April 2004). "The Evolution of the Detonator" (PDF). Archived from the original (PDF) on 21 August 2006. Retrieved 28 December 2006.