DNV—GL — CORROSION PROTECTION OF FLOATING PRODUCTION AND STORAGE UNITS
|D O W N L O A D|
The document contains guidelines issued by DNV GL classification society related to the corrosion protection of FPS, i.e. floating production and storage units. Looking from the corrosion protection perspective, these units differ from the conventional vessel in the sense that they do not dry dock on the regular basis. The units are in continuous operation throughout their service lives.
That is why the cathodic protection system and coating systems of these units shall be extended for more than ten years to provide required degree of hull protection. The main goal of this recommended practice is to achieve a service life while minimizing the maintenance during service. This can be done by combining the coating with the CP, i.e. cathodic protection systems.
Such approach will give several advantages, for example even current distribution, reduced total cathodic protection current demand, which will result in the weight of sacrificial anodes significantly reduced, rapid polarization to the protective potential etc. Note that we also have another recommended practice which is dealing with the protection of submarine pipelines from corrosion. The document also contains coating tables.
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