Shocktube Troubleshooting

Factory Faults

Poor insertion of tubing into detonator at crimping

Missing components on unit (No cobra clip & no heat seal)

Detonator double crimped at base charge (Safety hazard)

Unidirectional propagation resulting in misfire

Tube burst due to a too high core load

No or low core load failure

Failure to Propagate (HMX/Aluminum ratio)

Detonator not clipped in top position

Detonator clipped on one side of skirt only

Tube damaged in plant

Will most likely burst in use due to weak points along the length of the tube.

Detonator not clipped in properly

Detonator not clipped into 2nd position properly and pulled back.

Damage to Shocktube in use
DAMAGED TUBING (Rough handling)

CLOSE CONNECTING – No RunUp

At least half a meter run-up must be allowed for shock tube

CLOSE CONNECTION

(No run-up allowed) At least half a metre run-up from the donor detonator to acceptor must be allowed for shock tube)

Shrapnel embedded into tubing

Shrapnel damage

Broken Clips

Broken clips resulting from lines being too tight.

Physical Damage

Example of tube strangulation due to physical damage