What are common ignition sources in industrial settings and how can they be mitigated?

• A. Gas leaks are the sole ignition source in factories.
• B. Only electrical faults matter in industrial settings.
• C. Fire suppression systems alone mitigate ignition sources.
• D. Common ignition sources include sparks from grinding, hot work, electrical faults, and friction; mitigated by hot-work permits, housekeeping, equipment maintenance, and proper grounding.

Answer: (D)

Ignition risks in industrial settings come from a variety of sources, not just one. Sparks from grinding and other mechanical work, heat generated by hot-work activities, electrical faults that can arc or overheat, and friction from moving parts are all potential ignition sources. The best way to address this is to prevent the source from causing a fire in the first place. Use hot-work permits to control activities like welding and cutting, keep work areas clean and free of dust and flammable materials, perform regular maintenance to prevent overheating and faulty wiring, and ensure proper grounding and bonding to dissipate static charges and prevent electrical arcing. While fire suppression systems are valuable for containing and putting out fires if they start, they don’t eliminate ignition sources by themselves, and focusing solely on suppression misses the preventive steps that reduce the chances of ignition in the first place.