Patent application number | Description | Published |
20080260340 | Optical Fiber Unit for Air Blown Installation - Disclosed is an optical fiber unit for air blown installation, which includes at least one optical fiber; a buffer layer surrounding the optical fiber and made of radiation curing acrylate; an outer layer surrounding the buffer layer and made of radiation curing acrylate; and a group of solid particles attached to a surface of the outer layer and having an average diameter of 80 to 140 mm and a specific weight of 2 to 3 g/cc. Thus, there is provided a structurally stable optical fiber unit, which allows easy control of particles while the optical fiber unit is produced, and also has improved installation properties. | 10-23-2008 |
20090202208 | AIR BLOWN OPTICAL FIBER UNIT HAVING BEAD ATTACHED ON THE SURFACE - Disclosed is an air blown optical fiber unit having low friction with an installation tube during air blown installation. The air blown optical fiber unit includes at least one optical fiber, a buffer layer surrounding the optical fiber and made of polymer resin, an outer layer surrounding the buffer layer and made of polymer resin, and beads attached on a surface of the outer layer, and the beads have an average diameter of 80 μm to 140 μm and an average roughness of 10 μm or less and a radio (R/r) of a long radius (R) to a short radius (r) is in the range of 1 to 1.5. The optical fiber unit gives less friction with the inner surface of an installation tube during the installation work, so it may be easily installed not only in a linear region but also in a curved region. | 08-13-2009 |
20090202209 | AIR BLOWN OPTICAL FIBER UNIT HAVING BEAD ATTACHED ON THE SURFACE - Disclosed is an air blown optical fiber unit having beads attached on its surface. The air blown optical fiber unit includes at least one optical fiber, a buffer layer surrounding the optical fiber and made of polymer resin, an outer layer surrounding the buffer layer and made of polymer resin, and beads attached on a surface of the outer layer to have height of 40 μm to 120 μm on the average. This air blown optical fiber unit gives improved installation characteristics. | 08-13-2009 |
20090252466 | AIR BLOWN OPTICAL FIBER UNIT FOR REDUCING MICRO-BENDING LOSS - Disclosed is an air blown optical fiber unit for reducing a micro-bending loss. The air blown optical fiber unit includes at least one optical fiber; a buffer layer surrounding the optical fiber and made of polymer resin having a Young's modulus of 0.05 to 2 kgf/mm; and an outer layer surrounding the buffer layer and having beads attached to a surface thereof, the outer layer being made of polymer resin, wherein the buffer layer has a thickness of 70 to 140 μm. This optical fiber unit may reduce a micro-bending loss of an optical fiber by buffering an external force applied to the optical fiber due to beads attached to its surface. | 10-08-2009 |
20100230130 | FOAM COAXIAL CABLE AND METHOD FOR MANUFACTURING THE SAME - A foam coaxial cable includes a central conductor; an inner skin layer surrounding the central conductor coaxially; an insulation layer surrounding the inner skin layer coaxially and made of polyethylene resin containing a plurality of foam cells uniformly formed therein; wherein the inner skin layer is made of polyolefin resin having excellent compatibility with the polyethylene resin to increase an interfacial adhesive force with the insulation layer, an outer skin layer surrounding the insulation layer coaxially to prevent overfoaming of the insulation layer and allow uniform creation of foam cells; a shield surrounding the outer skin layer coaxially; and a jacket surrounding the shield. This cable improves an interfacial adhesive force between the central conductor and the insulation layer and also improves the degree of foam of the foam cells, thereby capable of propagating ultra high frequency of GHz level without signal interference. | 09-16-2010 |
20100314152 | MICRO COAXIAL CABLE FOR HIGH BENDING PERFORMANCE - The present invention relates to a micro coaxial cable with a high bending performance, comprising an inner conductor; an insulating layer configured to surround the inner conductor, and a helical winding conductor configured to surround the insulating layer and having an elongation of 1.5 to 4% and a pitch of 3.0 to 5.0 D. | 12-16-2010 |
20110073348 | COAXIAL CABLE - A coaxial cable includes a central conductor made of cylindrical conductive material with conductivity greater than 100% and smaller than 104%, the central conductor having a thickness greater than 0.1 mm and smaller than 0.5 mm; a dielectric layer surrounding the central conductor and made of insulating material; an outer conductor surrounding the dielectric layer and made of conductive material with conductivity greater than 97% and smaller than 105% and a thickness greater than 0.24 mm and smaller than 0.35 mm; and an outer jacket surrounding the outer conductor. This coaxial cable allows stable transmission of signal even at a high frequency. | 03-31-2011 |
Patent application number | Description | Published |
20110127065 | ELECTRIC CABLE FOR NUCLEAR POWER PLANTS WITH IMPROVED DURABILITY AND FABRICATION METHOD THEREOF - Disclosed is a method for fabricating an electric cable for nuclear power plants, comprising: pre-heating a conductor wire; melting a PEEK (poly ether ether ketone) material and extruding the PEEK material in the direction of the conductor wire, to form an insulator such that the insulator coats the surface of the conductor wire; and cooling the insulator quickly. | 06-02-2011 |
20120234577 | HIGH FREQUENCY POWER CABLE - Disclosed is a high frequency power cable including a central conductor centered in the cable having a plurality of metal strands twisted together in a cylindrical configuration, a conducting layer surrounding the periphery of the central conductor having a plurality of metal strands twisted together in a multilayered configuration, and an insulating layer surrounding the peripheries of the central conductor and the conducting layer. | 09-20-2012 |
20130180755 | ELECTRIC CABLE FOR NUCLEAR POWER PLANT EASY TO MONITOR CONDITION AND FABRICATION METHOD THEREOF - An electric cable for a nuclear power plant that allows easy monitoring of its condition for long term use in a nuclear power plant, and a fabrication method thereof is provided. The electric cable for a nuclear power plant includes at least one core having a conductor and an insulating body coating the conductor, and a sheath body surrounding the core, and the insulating body and the sheath body are made of the same composition. | 07-18-2013 |
20130233586 | COPPER CLAD ALUMINUM WIRE, COMPRESSED CONDUCTOR AND CABLE INCLUDING THE SAME, AND METHOD OF MANUFACTURING COMPRESSED CONDUCTOR - Disclosed are a copper clad aluminum wire, a compressed conductor and a cable including the same and a method of manufacturing the compressed conductor. The copper clad aluminum wire, the compressed conductor and a cable including the copper clad aluminum wire and the method of manufacturing the compressed conductor according to embodiments of the present invention may exhibit electrical features similar to those of a conventional pure copper wire without greatly increasing outer diameters of the conductor and the cable, guarantee workability of a worker when the worker installs the cable even in a narrow work space, and efficiently utilize an installation space. | 09-12-2013 |
20140211901 | NUCLEAR POWER PLANT CABLE AND MONITORING SYSTEM THEREFOR - The present invention relates to a nuclear power plant cable including: conductors; at least one or more insulation layers adapted to correspondingly surround the conductors; a sheath adapted to surround the insulation layers; and monitoring means adapted to monitor the states of the insulation layers or the state of the sheath in real time. | 07-31-2014 |
20140254994 | OPTICAL FIBER COMPOSITE CABLE - The present invention relates to an optical fiber composite cable. The optical fiber composite cable includes at least one power line to transmit power and an optical cable to monitor a state of the power lines, and the optical cable comprises optical fibers, tubes to accommodate the optical fibers, and a protection member to surround the tubes. | 09-11-2014 |
20140284073 | CABLE INCLUDING REINFORCEMENT ELEMENTS - The present invention relates to a cable including reinforcement elements. The cable according to the present invention includes at least one power conductors, at least one ground conductors, a semi-conducting layer configure to surround at least part of the power conductors and the ground conductors, and at least one ground check conductor insulated from the ground conductors and configured to check the ground state of the ground conductors. The ground check conductor includes a plurality of conductors, at least one reinforcement elements provided along the outer circumference of the conductors, and an insulator configured to surround the conductors and the reinforcement elements. | 09-25-2014 |