If you are tying multiple knots in det cord should it have a plastic sheath?

If you are tying multiple knots in det cord should it have a plastic sheath?

• A. Yes
• B. No
• C. It depends
• D. Not allowed

Answer: (B)

The important idea is that detonating cord should stay straight and unknotted. A knot creates a constriction and irregularity in the explosive core, which can crush the core or disrupt the detonation wave, creating weak points or unpredictable initiation. The plastic sheath doesn’t fix this; it’s there for protection, not to make knots safe. So the correct stance is that you should not knot detonating cord at all, and whether a sheath is present doesn’t change that safety rule. (Choices that imply knots are acceptable, optional, or forbidden aren’t aligned with this principle.)

The important idea is that detonating cord should stay straight and unknotted. A knot creates a constriction and irregularity in the explosive core, which can crush the core or disrupt the detonation wave, creating weak points or unpredictable initiation. The plastic sheath doesn’t fix this; it’s there for protection, not to make knots safe. So the correct stance is that you should not knot detonating cord at all, and whether a sheath is present doesn’t change that safety rule. (Choices that imply knots are acceptable, optional, or forbidden aren’t aligned with this principle.)