Detonating cord knots; Should you use a plastic sheath when knots are tied?

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Multiple Choice

Detonating cord knots; Should you use a plastic sheath when knots are tied?

Explanation:
Knots in detonating cord create a weak point where the energy transfer can become irregular. Wrapping those knots with a plastic sheath adds another barrier, trapping hot gases and altering how the detonation wave travels through the knot. That can change timing or reliability and increase the chance of a misfire. So the safer, better practice is not to sheath a tied knot at all. If a connection is needed, use approved joining methods rather than tying and wrapping knots.

Knots in detonating cord create a weak point where the energy transfer can become irregular. Wrapping those knots with a plastic sheath adds another barrier, trapping hot gases and altering how the detonation wave travels through the knot. That can change timing or reliability and increase the chance of a misfire. So the safer, better practice is not to sheath a tied knot at all. If a connection is needed, use approved joining methods rather than tying and wrapping knots.

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