Is Fuel oil No. 2 generating a hazardous area acc. NFPA 1

[petemd]

I need to design a storage tank farm with associated pump house. It should be designed according NEC/NFPA. Fuel is HSD No. 2 with a flash point of 70°C. 2 tanks with size of 20000qm. The pump house is located 20m away from tanks.
Is it required to design system in Ex-proof.

Pete M.

 

[kieffer]

A liquid with a flashpoint of 70 degrees C is a Class IIIA liquid. See NFPA 30 - 2000 Chapter 6, for distances from vapor sources to different types of electrics.