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Lightning protection for offshore cold vents (natural gas)

Lightning protection for offshore cold vents (natural gas)

Lightning protection for offshore cold vents (natural gas)

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)

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.
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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