How should electrical equipment be configured in ammunition storage areas?

• A. Install high-voltage equipment for faster processing.
• B. Use intrinsically safe or explosion-proof equipment, properly grounded and bonded, with sources of ignition minimized.
• C. Keep all devices unplugged.
• D. Use standard household outlets.

Answer: (B)

In ammunition storage areas, preventing ignition from electrical equipment is the key safety goal. The best approach is to use intrinsically safe or explosion-proof equipment, properly grounded and bonded, with ignition sources minimized. Intrinsically safe gear is designed so that even in a fault, the energy released cannot ignite explosives. Explosion-proof equipment contains any internal ignition and prevents it from spreading to the surrounding atmosphere. Grounding and bonding reduce static electricity and potential differences that could cause sparks or arcs. Minimizing ignition sources means avoiding hot surfaces, sparks, and any equipment that could generate sparks or excessive heat in a volatile environment.

High-voltage gear increases the risk of an energetic discharge and is not appropriate in explosive atmospheres. Standard household outlets are not built for explosion-proof protection and can become ignition sources. Keeping devices unplugged may still leave stored energy in capacitors or switches and doesn’t guarantee ignition risk is eliminated. Using equipment rated for explosive environments with proper grounding and bonding provides the necessary control to keep storage areas safe.