Improved Hardware and Techniques for Maintenance and Repair of Split-Pipe-Protected Cables.
Technical note Jul 74-Feb 77,
CIVIL ENGINEERING LAB (NAVY) PORT HUENEME CALIF
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The U.S. Navy currently maintains and operates numerous underwater power and signal cables. Most of these cables utilize split pipe systems to protect the cable from damage in the surf zone and when crossing exposed rocky seafloors. Past experience has shown that the hardware used to install the split pipe system lacks the reliability and maintenance-free operation required for the life of these cables. Based on previous experience with cable failures, the areas determined to be in greatest need of investigation are fasteners for holding the split pipe halves together, immobilization of the pipe, and cathodic protection for the entire system. This report presents the results of laboratory tests of both prototype and commercially available hardware components which appeared to be suitable replacements for the existing split pipe hardware. Also described is the installation of a 300-ft long test section of a split pipe at Anacapa Island which will be inspected during a 5 year period to determine the long-term performance selected hardware. Author
- Electrical and Electronic Equipment