What considerations are required for the diesel engine fuel system in NFPA 20?

What considerations are required for the diesel engine fuel system in NFPA 20?

• A. The fuel system may use any available source without filtration.
• B. Fuel storage and handling are not addressed.
• C. A reliable fuel supply for the required running period, with proper storage, filtering, and protection from contamination.
• D. Only electric-powered fuel systems are allowed.

Answer: (C)

NFPA 20 requires the diesel engine fuel system to provide a reliable fuel supply for the full period the pump is expected to run, with fuel kept in proper storage, filtered, and protected from contamination. This means sizing the storage to cover the required running time and ensuring fuel is clean through filtration and water separation so particulates and moisture don’t reach the engine. Proper handling and maintenance prevent contamination from entering the system, guarding against fuel starvation and injector problems during an emergency. Other approaches that ignore filtration, storage, or assume a non-diesel or non-reliably supplied system would not meet NFPA 20’s requirements.

NFPA 20 requires the diesel engine fuel system to provide a reliable fuel supply for the full period the pump is expected to run, with fuel kept in proper storage, filtered, and protected from contamination. This means sizing the storage to cover the required running time and ensuring fuel is clean through filtration and water separation so particulates and moisture don’t reach the engine. Proper handling and maintenance prevent contamination from entering the system, guarding against fuel starvation and injector problems during an emergency. Other approaches that ignore filtration, storage, or assume a non-diesel or non-reliably supplied system would not meet NFPA 20’s requirements.