Breaching Technologies Lock Explosive Breaching Door User Manual
Page 11
BTI personnel have also utilized “water bag” type charges that generate acceptable
pushing type results.
Other explosive pushing charges utilizing C-1 through C-4 plastic
explosives can be utilized. However, explosive weight should not exceed 20
grams or a 350-grain equivalent.
Note that detonation cord is manufactured in many different explosive
weights. The military commonly utilizes 54 grains per foot detonation cord.
Always determine the total explosive weight of any charge.
Explosive Placement
Placement of the pushing charge is on the reinforced plate on the
front of the door. The charge should be attached to the door
utilizing double-sided tape, breachers paste or similar method.
Water bags are commonly placed over the charge to enhance the
pushing effect.
Care should be exercised as to not allow the charge to overlap on
to the doorframe or associated structure. This will only apply
meaningless forces into the doorframe. Over time this will shorten
the life of the product.
Remember that when a detonation occurs, the material used to
push the door open is deformed and fragments at a very high
velocity. It is therefore recommended that shields, ballistic vests,
ear and eye protection always be used. If shields are not practical
then the door should be placed in such a manner or location to
allow trainees to have sufficient cover to protect them from the
blast and accompanying fragmentation that will be propelled
through the air in all directions.