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公开(公告)号：EP2145371A1
公开(公告)日：2010-01-20
申请号：EP07748464.0
申请日：2007-05-04
CPC分类号： H02J3/00
摘要： The invention relates to distribution of electrical power, supervision and security. The invention comprises a power feeding station PFS for delivering electrical power. The PFS comprises a low voltage side LVS, a high voltage side HVS and a transformer TF which is configured to deliver high voltage single phase alternating current on the high voltage side, The power can be distributed, via a cable, to one or more power receiving stations PRS. The cable is configured to distribute current-symmetrical single phase current delivered by the power feeding station. The cable can preferable be a coaxial cable with the shield as current return path. The invention also comprises a current sensor unit CSU which is situated on the high voltage side. The means for measuring characteristics of the current CD can comprise a coil without galvanic contact with the high voltage side. A circuit break unit CBU suitable for breaking the current is situated on the low voltage side. A control function CF is configured to activate the circuit break unit based on the safety rules and the characteristics of the current CD. Characteristics of the current and other system information SI can also be delivered to an information unit IU.
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公开(公告)号：EP2016655A1
公开(公告)日：2009-01-21
申请号：EP06733378.1
申请日：2006-04-28
发明人： EFRAIMSSON, Lars , JOHNSEN, Ulf
IPC分类号： H02G7/04
摘要： 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 .
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公开(公告)号：EP1508145A1
公开(公告)日：2005-02-23
申请号：EP03723617.1
申请日：2003-05-27
发明人： EFRAIMSSON, Lars , JOHNSEN, Ulf , GATU, Anders
摘要： The figure shows an electrical cable with conductors (1) of metal, surrounded by each of an inner conducting layer (2), insulation (3) and an outer conducting layer (4). A moisture barrier (11) with an electrically conducting layer surrounds the conductors. Shield strips (5) of at least partially conducting material are located in the regions between the outer conducting layer (4) and the moisture barrier (11). Electrically conducting shield wires (6) run along the shield strips and are placed through these into electrical contact with the electrically conducting layer of the moisture barrier (11). The shield strips support the moisture barrier from the inside, such that the moisture barrier can in a simple manner be made watertight when it is applied. The shield strips (5), the moisture barrier (11) and the shield wires (6) together constitute an efficient electrical shield for the cable. Penetration of an electrically conducting object into the cable results in a fault current that can be easily indicated, such that an applied cable voltage can be removed.
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公开(公告)号：EP2145339B1
公开(公告)日：2012-06-20
申请号：EP07861114.2
申请日：2007-12-18
发明人： EFRAIMSSON, Lars , STRÖM, Bengt
CPC分类号： G02B6/4422 , G02B6/4429 , G02B6/4459 , G02B6/483 , H01B9/005 , H01B9/008
摘要： The invention refers to an electrical cable (C5) with three insulated conductors (51,52,53), a tube (58) for an optical cable, a strip (57) of elastic material embedding the tube and a jacket (56). When the cable (C5) is handled, e.g. suspended between poles or dredged into the ground, the tube (58) can be deformed by external forces. This makes it impossible to blow or float the optical cable into the tube. The tube (58) is protected by the strip (57) and especially by the strip having a flat interval (15) in proximity to the tube. External forces from e.g. suspension equipment will mainly deform the strip (57) at the ends of the interval (15) and less of the forces will hit the tube (58). The deformation sets up an interior pressure in the strip that acts in sideward direction on the tube and contributes to keep it round and non deformed.
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公开(公告)号：EP2016655B1
公开(公告)日：2011-11-30
申请号：EP06733378.1
申请日：2006-04-28
发明人： EFRAIMSSON, Lars , JOHNSEN, Ulf
IPC分类号： H02G7/04
摘要： 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 .
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公开(公告)号：EP2145371B1
公开(公告)日：2011-03-16
申请号：EP07748464.0
申请日：2007-05-04
CPC分类号： H02J3/00
摘要： The invention relates to distribution of electrical power, supervision and security. The invention comprises a power feeding station PFS for delivering electrical power. The PFS comprises a low voltage side LVS, a high voltage side HVS and a transformer TF which is configured to deliver high voltage single phase alternating current on the high voltage side, The power can be distributed, via a cable, to one or more power receiving stations PRS. The cable is configured to distribute current-symmetrical single phase current delivered by the power feeding station. The cable can preferable be a coaxial cable with the shield as current return path. The invention also comprises a current sensor unit CSU which is situated on the high voltage side. The means for measuring characteristics of the current CD can comprise a coil without galvanic contact with the high voltage side. A circuit break unit CBU suitable for breaking the current is situated on the low voltage side. A control function CF is configured to activate the circuit break unit based on the safety rules and the characteristics of the current CD. Characteristics of the current and other system information SI can also be delivered to an information unit IU.
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公开(公告)号：EP2145339A1
公开(公告)日：2010-01-20
申请号：EP07861114.2
申请日：2007-12-18
发明人： EFRAIMSSON, Lars , STRÖM, Bengt
CPC分类号： G02B6/4422 , G02B6/4429 , G02B6/4459 , G02B6/483 , H01B9/005 , H01B9/008
摘要： The invention refers to an electrical cable (C5) with three insulated conductors (51,52,53), a tube (58) for an optical cable, a strip (57) of elastic material embedding the tube and a jacket (56). When the cable (C5) is handled, e.g. suspended between poles or dredged into the ground, the tube (58) can be deformed by external forces. This makes it impossible to blow or float the optical cable into the tube. The tube (58) is protected by the strip (57) and especially by the strip having a flat interval (15) in proximity to the tube. External forces from e.g. suspension equipment will mainly deform the strip (57) at the ends of the interval (15) and less of the forces will hit the tube (58). The deformation sets up an interior pressure in the strip that acts in sideward direction on the tube and contributes to keep it round and non deformed.
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公开(公告)号：EP2852958B1
公开(公告)日：2016-03-23
申请号：EP13725844.8
申请日：2013-05-14
发明人： EFRAIMSSON, Lars
IPC分类号： H01B9/04
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公开(公告)号：EP2591478A1
公开(公告)日：2013-05-15
申请号：EP10854510.4
申请日：2010-07-06
IPC分类号： H01B7/18
摘要： 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).
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公开(公告)号：EP1133818B1
公开(公告)日：2006-02-01
申请号：EP99963716.8
申请日：1999-11-19
发明人： EFRAIMSSON, Lars , DAHLBERG, Per , TAPPER, Johan , NORDLÖF, Jonas
摘要： The present invention relates to as a combined cable suspension device and cable carriage. In order to enable a cable suspension device (1) to be used also as a cable carriage, the suspension device has been provided with a rotatable cable support (2) which when the device shall function as a cable carriage can be moved upwards in said device in order to provide a rotatable support for the cable when said cable is moved out of contact with the cable abutment surfaces (3) in the suspension device. This type of device that incorporates a cable carriage facility enables a cable to be drawn and secured and released as required.
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