What is primacord?

• A. A type of blasting cap
• B. A detonating cord covered with a waterproof textile
• C. An explosive mixture
• D. A type of fuse

Answer: (B)

Primacord is specifically recognized as a detonating cord that is covered with a waterproof textile. This design is crucial because it enhances the safety and effectiveness of the cord when used in varying environmental conditions, especially where moisture might be a factor. The waterproof covering helps prevent water from infiltrating the cord, ensuring reliable detonation and performance in wet conditions.

The significance of primacord lies in its application; it is often used to initiate explosives uniformly and can be employed in a variety of blasting scenarios. Its function is fundamental in ensuring that explosives are detonated with precision, which is essential for controlled blasting operations in mining and construction.

Understanding the properties of primacord is vital for anyone working in mining or any field that involves blasting operations, as selecting the proper initiating systems and safety measures is critical for safe and efficient work practices.