Optical cable
AssigneeSumitomo Electric Industries, Ltd.
InventorsRyota FUKUMOTO, Nayu YANAGAWA, Taro FUJITA, Fumiaki SATO, Yohei SUZUKI
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Abstract
The optical cable according to an embodiment of the present disclosure is for laying thereof in a microduct, the optical cable being provided with an assembly core that accommodates one or more optical fiber cores, and a sheath layer that covers an outer periphery of the assembly core, the density of the sheath layer being 1.0 g/cm3 or less, a main component of the sheath layer being polyethylene, the sheath layer containing silicone, the density of the polyethylene being 0.92 g/cm3 or greater, the weight-average molecular weight of the silicone being 50,000-1,000,000, and the content ratio of the silicone in the sheath layer being 0.5-10 mass %.
Claims20
An optical cable for installation in a microduct, the optical cable comprising:
- an assembled core containing one or more optical-fiber core wires;
- and
- a sheath layer covering an outer periphery of the assembled core,
- wherein the sheath layer has a density of 1.0 g/cm3 or less,
- a main component of the sheath layer is polyethylene,
- the sheath layer contains silicone,
- the polyethylene has a density of 0.92 g/cm3 or greater,
- the silicone has a weight-average molecular weight of 50,000 to 1,000,000, and
- a content ratio of the silicone in the sheath layer is 0.5% by mass to 10% by mass.
Dependencies are inferred from the claim text.