Optical fiber cable
Intended is to provide an optical fiber cable capable of reliably preventing the increase in a transmission loss due to such damages of optical fibers as are caused by the ovipositions of Cryptotympana facialis. The optical fiber cable includes at least an optical fiber core (1), tension members (6,...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | Intended is to provide an optical fiber cable capable of reliably preventing the increase in a transmission loss due to such damages of optical fibers as are caused by the ovipositions of Cryptotympana facialis. The optical fiber cable includes at least an optical fiber core (1), tension members (6, 6), and a sheath (3) covering those optical fiber core (1) and tension members (6, 6) altogether. The optical fiber cable is characterized in that the sheath (3) has a Shore D-hardness of 55 or more, and in that the minimum distance (L) between the surface of the optical fiber core (1) and the outer surface of the sheath (3) is L > 0.3 mm. The optical fiber cable is further characterized in that the surface of the sheath (3) has a friction coefficient of 0.45 or less, and in that the sheath (3) has a Shore D-hardness of 57 or more. The optical fiber cable is still further characterized in that a predetermined flame retardant composite (P) is used as a sheath material. |
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