How does a Nonel shock tube function once initiated?

• A. It creates a heatwave
• B. It propagates a shock wave to trigger an explosion
• C. It generates electric current
• D. It serves as a cooling agent

Answer: (B)

A Nonel shock tube operates by delivering a shock wave through a specially designed tube filled with a reactive material. Once initiated, the tube transmits this shock wave at a high speed, which is capable of igniting a blasting agent or explosive at the end of the tube. This method is designed to ensure safety and reliability in explosive detonation by eliminating the need for electric detonators, thereby reducing the risk of unintended ignition from electrical signals.

The mechanism relies on the principle of transmitting a mechanical shock rather than using heat or electrical energy. This gives it distinct advantages in certain environments, such as wet or hazardous areas, where traditional electrical initiation systems may pose greater risks. Understanding this operation is crucial for safely managing blasting operations in mining and construction activities.