Patents Assigned to NKT CABLES GROUP A/S
  • Patent number: 10665365
    Abstract: A low voltage electric power cable includes at least two insulated conductors arranged together in a bundle, at least one foil extending around the bundle, and an outer sheath extending around the at least one foil. A recess is formed between two insulated conductors. The low voltage electric power cable includes an elongated member, the elongated member being arranged between the at least one foil and the outer sheath, and extending adjacent to the at least one foil along the recess. The elongated member is arranged with a clearance fit underneath the outer sheath.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: May 26, 2020
    Assignee: NKT Cables Group A/S
    Inventors: Anders Jonas Gatu, Jan Roger Erikers
  • Patent number: 10395797
    Abstract: A self-supporting electric power cable is disclosed. The electric power cable includes an outer jacket portion and a core portion. The core portion includes at least one insulated conductor and at least one supporting cord. The at least one insulated conductor includes a number of individual wires, and the at least one supporting cord includes synthetic fibers. The number of individual wires, individually or arranged in bundles, are arranged in a first lay direction. The at least one insulated conductor and the at least one supporting cord are arranged in a second lay direction. The at least one supporting cord is arranged as a separate unit in a cross sectional sector of the self-supporting electric power cable. Thus flexible and durable power cable for sea use is provided. Also an offshore arrangement is disclosed herein.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: August 27, 2019
    Assignee: NKT Cables Group A/S
    Inventors: Lars Ingvar Hagman, Anders Jonas Gatu, Björn Håkan Rickardsson, Hans Christian Andersson, Matz Anders Allernäs Mattsson, Lars Efraimsson
  • Patent number: 10381132
    Abstract: The current invention relates to self-supporting cables that often are aerial mounted between cable fixing points (800) and where the conductors in the cables act as the bearing elements. In this type of cables, slip-page between the surfaces of different layers in the cable is undesirable. On the other hand, it must be possible to easily bend the cable, even for larger dimensions. Both these requirements are difficult to meet with the solutions from prior art. The present invention overcomes this by introducing an intermediate layer (130) in the cable (100) located between and adhered to the surfaces (112, 121) of the layers and having a frictional inner structure allowing the two surfaces (112, 121) to slip relatively each other in longitudinal direction enough so that the cable (100) can be bent but prevents the two surfaces {112, 121) from slipping in response to an inwardly directed radial pressure force (F) at the cable fixing points (800).
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: August 13, 2019
    Assignee: NKT CABLES GROUP A/S
    Inventors: Ulf Johnsen, Lars Efraimsson
  • Publication number: 20190172609
    Abstract: A self-supporting electric power cable is disclosed. The electric power cable includes an outer jacket portion and a core portion. The core portion includes at least one insulated conductor and at least one supporting cord. The at least one insulated conductor includes a number of individual wires, and the at least one supporting cord includes synthetic fibres. The number of individual wires, individually or arranged in bundles, are arranged in a first lay direction. The at least one insulated conductor and the at least one supporting cord are arranged in a second lay direction. The at least one supporting cord is arranged as a separate unit in a cross sectional sector of the self-supporting electric power cable. Thus flexible and durable power cable for sea use is provided. Also an offshore arrangement is disclosed herein.
    Type: Application
    Filed: March 30, 2017
    Publication date: June 6, 2019
    Applicant: NKT Cables Group A/S
    Inventors: Lars Ingvar Hagman, Anders Jonas Gatu, Björn Håkan Rickardsson, Hans Christian Andersson, Matz Anders Allernäs Mattsson, Lars Efraimsson
  • Patent number: 10181362
    Abstract: The application relates to a grounding conductor and an electrical system including such a grounding conductor including a plurality of conductive aluminum strands where each such strand is provided with at least one sheath of an electrically conductive polymer material having a volume resistivity (?) below 100 ?·cm.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: January 15, 2019
    Assignee: NKT CABLES GROUP A/S
    Inventors: Lars Efraimsson, Lars Ingvar Hagman, Ivars Lars Sune Hansson, Hans Christian Andersson, Dietmar Gleich, Anders Jonas Gatu, Tommy K. Valdemar Asmola
  • Patent number: 9612189
    Abstract: An integrity monitoring system for monitoring integrity of at least a part of a stationary structure includes a vibration sensor for sensing vibration as a function of time, a computer, transmitting means for transmitting vibration data from the vibration sensor to the computer, means for acquiring position as a function of time data of a movable object, such as a vessel, a vehicle or a digging tool. The movable object includes a transmitter transmitting the position as a function of time data to the computer when the movable object is within a selected distance to a monitoring site. The monitoring site includes the part of the stationary structure to be monitored and the vibration sensor is arranged to sense vibrations within the monitoring site. The computer includes hardware and software for comparing the vibration data with the position as a function of time data.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: April 4, 2017
    Assignees: NKT CABLES GROUP A/S, ENERGINET.DK
    Inventors: Henrik Roland Hansen, Lars Højsgaard, Dirk Maiwald
  • Patent number: 9514861
    Abstract: A self-supporting cable including an outer portion and an inner portion is provided, as well as a combination of a self-supporting cable and a suspension arrangement. The inner portion includes at least one insulated conductor and the outer portion includes a first inner surface and an external surface. The external surface is arranged to engage with a suspension arrangement. The inner portion includes a first outer surface, the first outer surface abutting against the first inner surface. The outer portion includes an outer layer and a metal tape adhered to the outer layer. The outer layer includes the external surface, and the metal tape includes the first inner surface. The first inner surface being of metal and adapted for, during local load, frictional engagement with the material of the first outer surface increases the effectiveness of a functional grip between first outer surface and first inner surface.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: December 6, 2016
    Assignee: NKT CABLES GROUP A/S
    Inventors: Lars Efraimsson, Bengt Strom
  • Publication number: 20150302953
    Abstract: A self-supporting cable including an outer portion and an inner portion is provided, as well as a combination of a self-supporting cable and a suspension arrangement. The inner portion includes at least one insulated conductor and the outer portion includes a first inner surface and an external surface. The external surface is arranged to engage with a suspension arrangement. The inner portion includes a first outer surface, the first outer surface abutting against the first inner surface. The outer portion includes an outer layer and a metal tape adhered to the outer layer. The outer layer includes the external surface, and the metal tape includes the first inner surface. The first inner surface being of metal and adapted for, during local load, frictional engagement with the material of the first outer surface increases the effectiveness of a functional grip between first outer surface and first inner surface.
    Type: Application
    Filed: November 25, 2013
    Publication date: October 22, 2015
    Applicant: NKT CABLES GROUP A/S
    Inventors: Lars EFRAIMSSON, Bengt STROM
  • Patent number: 9048003
    Abstract: The current invention relates to self-supporting cables that often are aerial mounted between cable fixing points (800) and where the conductors in the cables act as the bearing elements. In this type of cables, slippage between the surfaces of different layers in the cable is undesirable. On the other hand, it must be possible to easily bend the cable, even for larger dimensions. Both these requirements are difficult to meet with the solutions from prior art. The present invention overcomes this by introducing an intermediate layer (130) between the surfaces (112, 121) comprising at least on tape (511) with friction particles (512) where the friction obtained by the friction particles (512) is low enough to allow the two surfaces (112, 121) to slip relatively each other in longitudinal direction enough so that the cable 100 can be bent but prevents the two surfaces (112, 121) from slipping in response to an inwardly directed radial pressure force (F) at the cable fixing points (800).
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: June 2, 2015
    Assignee: NKT CABLES GROUP A/S
    Inventors: Ulf Fridtjof Johnsen, Lars Efraimsson
  • Patent number: 9010695
    Abstract: The present invention relates to problems how to keep cable arrangement functional, or at least make the damage as little as possible, after being exposed to different types of mechanical overloads. The problems are solved by methods and arrangements in which the securing means and the contact material of the securing means are arranged so that the cable can slide through the securing means when it is exposed to mechanical overloads.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: April 21, 2015
    Assignee: NKT Cables Group A/S
    Inventors: Lars Efraimsson, Ulf Fridtjof Johnsen
  • Patent number: 8866015
    Abstract: A power cable comprises at least one insulated cable core having an electric conductor, a screen and an outer insulating sheath surrounding the core/cores, and an outer conducting material attached to the exterior of the outer sheath. The outer conducting material includes at least one band attached to the outer sheath extending along the full length of the cable and having a width (W) extending over only a part of an outer periphery of the cable. At least one groove extends along the cable outer sheath and the band/bands of conducting material are received in the groove/grooves, or at least one rib extends along the cable outer sheath and the band/bands of conducting material are attached to an outer surface of said rib/ribs; or at least one band of the outer conducting material is adhered to the outer sheath and requires a stripping force.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: October 21, 2014
    Assignee: NKT Cables Group A/S
    Inventors: Lars Efraimsson, Ivar Lars Sune Hansson, Ulf Fridtjof Johnsen
  • Publication number: 20130275055
    Abstract: The invention concerns an integrity monitoring system for monitoring integrity of at least a part of a stationary structure. The system comprises a vibration sensor for sensing vibration as a function of time, a computer, transmitting means for transmitting vibration data from the vibration sensor to the computer, means for acquiring position as a function of time data of a movable object, such as a vessel, a vehicle or a digging tool, where the movable object comprises a transmitter, and transmitting the position as a function of time data to the computer when the movable object is within a selected distance to a monitoring site. The monitoring site comprises the part of the stationary structure to be monitored and the vibration sensor is arranged to sense vibrations within the monitoring site. The computer comprises hardware and software for comparing the vibration data with the position as a function of time data.
    Type: Application
    Filed: November 3, 2011
    Publication date: October 17, 2013
    Applicants: ENERGINET.DK, NKT CABLES GROUP A/S
    Inventors: Henrik Roland Hansen, Lars Højsgaard, Dirk Maiwald