what protection systems are available to prevent lightning strikes on offshore cold vents (natural gas)? or do I have to use extinguishing systems or continuous inert gas purge (expensive if vent rate is not extremely small)????
RE: Lightning protection for offshore cold vents (natural gas)
Suggestions: 1. Reference Fink D.G., Beaty H.W., "Standard Handbook for Electrical Engineers," 14th Ed., McGraw-Hill, 2000, Section 27 Lightning and Overvoltage Protection (for background on lightning and references) 2. Industry Standards. http://ewh.ieee.org/soc/pes/lpdl 3. Safety code. If you have all steel structure floating on the water, then the lightning system is not required. However, if the structure contains, non-metallic (it means less conducting) layers as electrical isolator, then you need the lightning system. 4. Essentially, to avoid a direct lightning strike to your gas vent, an additional and separate taller structure with a lightning system would have to be built.
RE: Lightning protection for offshore cold vents (natural gas)
On a ligh gas vent (onshore), I had a small 1" steam line run up the vent with a valve at the vent's base. When a storm approached one of the operators would crack open the the valve. Solve our problem of having a vent fire with every thunder/electrical storm (rain and snow).
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RE: Lightning protection for offshore cold vents (natural gas)
1. Reference
Fink D.G., Beaty H.W., "Standard Handbook for Electrical Engineers," 14th Ed., McGraw-Hill, 2000, Section 27 Lightning and Overvoltage Protection
(for background on lightning and references)
2. Industry Standards.
http://ewh.ieee.org/soc/pes/lpdl
3. Safety code. If you have all steel structure floating on the water, then the lightning system is not required. However, if the structure contains, non-metallic (it means less conducting) layers as electrical isolator, then you need the lightning system.
4. Essentially, to avoid a direct lightning strike to your gas vent, an additional and separate taller structure with a lightning system would have to be built.
RE: Lightning protection for offshore cold vents (natural gas)