sheathed explosive

sheathed explosive

[′shēthd ik′splō·siv]
(engineering)
A permitted explosive enveloped by a sheath containing a noncombustible powder which reduces the temperature of the resultant gases of the explosion and, therefore, reduces the risk of these hot gases causing a firedamp ignition.
References in periodicals archive ?
At present, one explosives company has submitted a sheathed explosive charge for approval by MSHA.
All trials with the sheathed explosive charge were conducted according to standards that formed the basis of the eventual regulations.
3]Prototype Sheathed Explosive Rock-Breaker Charge for Open Shooting in Flammable Atmospheres.
BLASTING UNCONFINED, SHEATHED EXPLOSIVES IN COAL MINES