OPTICAL FIBER CABLE

OPTICAL FIBER CABLE

PROBLEM TO BE SOLVED: To provide an optical fiber cable of which the cable elongation (elongation strain of optical fibers) due to traction and the cable fracture load at the time of application of an abnormal tensile force can be controlled.SOLUTION: With respect to an optical fiber cable 1 provide...

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Hauptverfasser: OGI MAKI, YAMANAKA MASAYOSHI, OKADA NAOKI, TAKEDA DAIKI
Format: Patent
Sprache:eng
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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creator OGI MAKI
YAMANAKA MASAYOSHI
OKADA NAOKI
TAKEDA DAIKI
description PROBLEM TO BE SOLVED: To provide an optical fiber cable of which the cable elongation (elongation strain of optical fibers) due to traction and the cable fracture load at the time of application of an abnormal tensile force can be controlled.SOLUTION: With respect to an optical fiber cable 1 provided with two or more tension members 4, the tension members 4 are provided so that, when the optical fiber cable 1 is drawn so as to limit a maximum cable fracture load to a range between numerical values of maximum drawing tension at the time of cable laying and target maximum fracture load and then the drawing load is increased, elongation of the optical fiber cable which causes fracture of at least one tension member 4 and elongation of the optical fiber cable which causes fracture of the other tension members 4 are different. The difference of elongation for fracture is given between the tension members 4 by making one tension member 4 and the other tension members 4 different in one of elastic modulus, elongation at fracture points, strength at fracture points, and excess length.
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subjects OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
title OPTICAL FIBER CABLE
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