CATHODIC PROTECTION OF MOORING BUOYS AND CHAIN. PART 5. CONTINUED STUDIES WITH CABLES PROVIDING CONTINUITY
Abstract
An investigation was continued into the cathodic protection of fleet moorings, both the underwater portion of the buoy and the ground tackle. Sacrificial zinc anodes used on the ground tackle were specially cast on steel chain links so that they became an integral part of the ground tackle. The tight riser chain secured to the peg-top buoy had the required electrical continuity between chain links to permit the flow of current, but it was necessary to use a steel cable woven through the links of each of the ground legs and periodically joined to them to impart complete continuity between links. The cathodic protection system was shown to impart complete protection from corrosion to both the underwater portion of the buoy and to the ground legs, whether the latter were on either a sandy or a muddy bottom. It is estimated that this system can provide such protection for a total of at least five years.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1969
- Accession Number
- AD0693087
Entities
People
- Richard W. Drisko
Organizations
- Naval Facilities Engineering Service Center