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首页> 美国政府科技报告 >Interaction of Ship and Dock Cathodic Protection Systems Predicted from PotentialMeasurements of a Seawall at Panama City, Florida
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Interaction of Ship and Dock Cathodic Protection Systems Predicted from PotentialMeasurements of a Seawall at Panama City, Florida

机译：船舶和码头阴极保护系统的相互作用预测来自佛罗里达州巴拿马城海​​堤的潜在测量

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Carderock Division, Naval Surface Warfare Center technologists took potential(voltage) measurements on a seawall located at the Naval Coastal Systems Center in Panama City, FL to determine whether a large cathodic protection system on a pier or dock could cause stray current corrosion or cathodic protection control problems on a ship docked to the structure. The measurements were taken because, while the protection system on the sea wa 11 was providing adequate protection, one rectifier was not working properly. Minimal local potential gradients were found near the sea wall anodes. This should have had no effect on ships docked with the use of bumpers, which provide spacing of at least 0.5 m from the sea wa II. Rectifier shutdown or inadequate rectifier balance of the same potential can lead to potential differences over distances of roughly ship length pro. portions to cause control problems on a ship 5 cathodic protection system. To avoid this, multiple seawall rectifiers should be periodically checked for proper operation and balanced to the same control potential. A ship should not be docked so that it bridges the area between two rectifiers that are not properly balanced to the same potential. (MM).

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