Can Nonels be used in areas with potential stray current?

• A. No, they are conductive
• B. Yes, they do not conduct electricity
• C. Only under specific conditions
• D. No, they may explode

Answer: (B)

Nonel, a type of non-electric initiation system used in blasting, is designed specifically to mitigate the risks associated with stray current. These systems utilize a shock tube that transmits a signal to the detonator without the need for electric current. This characteristic makes Nonels particularly suitable for use in areas where electrical hazards or stray currents might be present.

The distinction that Nonels do not conduct electricity is crucial. Because they rely on air pressure waves instead of electrical impulses, they prevent the risk of accidental detonation that could occur from stray currents. This non-conductive nature not only enhances safety, but also makes Nonels a preferred choice in mining operations and other environments where stray current could pose a danger.

Understanding the operational principles behind Nonels reinforces the reason why they are deemed safe for use in such conditions, contributing to safer practices in mining and blasting operations.