Does any API or other standard decree or recommend a fire fighting system for a diesel fuel oil tank located at a power station but remote from the main plant.
Not to my knowledge, but diking or double wall requirement will be mandated. Diking wall will need to be no higher than I believe 6' for the reason of letting the fire department do their job in the event of a fire per NFPA 30. Obviously hand held PFE's will be advisable at the pump house.