Accession Number : ADP005243

Title :   Improved Reliability of Fiber Optic Overhead Cables with an Application of FRP (Fiber Reinforced Plastic)-Rods with S2-Glass

Corporate Author : PHILIPS KOMMUNIKATIONS INDUSTRIE AG COLOGNE (GERMANY F R)

Personal Author(s) : Hoevel,Albert

Report Date : NOV 1986

Pagination or Media Count : 6

Abstract : In optical fiber overhead cables FRP-rods (Fiber reinforced plastic-) are used as strength members because of their low weight and their indifference to electromagnetic influence. First tests were carried out with E-glass-rods. After two years field tests we found a strength reduction of the FRP-rods of about 20 %, caused by acid rain entering through some damages in the sheath. This strength reduction could be simulated in laboratory tests by soaking FRP-rods under bending strain in room temperature acid solutions. A comparison of E-, R- and S2-glass-rods at 0.5 % elongation showed a 200 times longer durability for R- and S2-glass rods. Therefore optical overhead cables with an armouring of FRP-rods containing R- or S2-glass show significant improvements in performance. (Author)

Descriptors :   *FIBER OPTICS, *CABLES, GLASS, RELIABILITY, WEST GERMANY

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE