How To Initiate Explosive and Separation Bolts

Initiation of Explosive and Separation Bolts . There are three ways; electrical , explosive transfer line , and mechanical. One might argue that there are only two ways because the explosive transfer lines are functioned either electrically or mechanically.

Electrical Initiator or Detonator

Most electrical initiators /detonators are functioned using 3.5 amps which is in accordance with MIL specs and standards. These devices have also been tested as high as 22 amps. Cap discharge methods can be used as well as long as enough energy is provided.

Explosive Transfer Line

Different transfer lines can be used (Det Cord, Rapid Deflagrating Cord , Shock Tube, etc.) The transfer line end-tip is the important feature and will need to be matched with the bolt design for proper detonation transfer.

Mechanical Initiation

Mechanical initiation can be achieved with a lanyard type device or a T-handle device. T-handles will use a transfer line to mate with the bolt downstream of the handle.

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