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  1. petemd

    Electric panel according to Factory Mutual (FM)

    We have a project in asia for a fuel gas system. The complete electrical part shall be according to FM. What does this mean? Do we have to follow the NFPA 70 and NEC 500? Or is there anything else to be observed? Thanks in advance. Pete M.
  2. petemd

    ASME VIII Releif Valves

    AMSE B31.1 requires in item 122.5 downstream of pressure regulators for relief devices or safety valves. What is the difference between relief valve and safety valve? Is this configuration also applicable for flammable gases or must I follow item 122.8.1 point D.1 and following?
  3. petemd

    Gas piping with NFPA

    Is around a gas pipeline (natural gas) a hazardous area according NFPA and to what distances is it located. I heard there could be something in the NFPA 497A? Is it correct? Furthermore is this hazardous area just located around flanges etc. or around the complete pipe? Thanks in advance Pete M.
  4. petemd

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

    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.
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