A vessel classed under the IMO DP Equipment Class DP-2 or its equivalent is equipped with a DP system that shall not fail after a single point failure. This can be achieved by having all DP-critical components duplicated and/or providing them with multiple power supplies. On top of that, the vessel's power system, fuel oil system, lubrication oil system, cooling system, compressed air system, and the HVAC system have to be redundant as well.
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