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WO/1999/033067A1 |
Disclosed is a dielectric gelling composition, exhibiting a thermo-reversible liquid-gel transition at a transition temperature, T¿t?, wherein the gel comprises an oil and a combined gelator system having molecules of a polymer compound...
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WO/1999/033066A1 |
A dielectric gelling composition, exhibiting a thermo-reversible liquid-gel transition at a transition temperature, T¿t?, wherein the gel comprises an oil and a gelator with a block copolymer comprising an olefin based block and at leas...
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WO/1999/033069A1 |
An insulated DC-cable and method for production of an insulated DC-cable with an insulating system comprising an extruded cross-linked polyethylene based insulation disposed around the conductor. The extruded polyethylene based compound ...
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WO/1999/033071A1 |
A method for manufacture of an electric device having at least one conductor and a porous, fibrous and/or laminated electrically insulating dielectric system comprising a solid electrically insulating part impregnated with a dielectric f...
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WO/1999/033068A1 |
A DC-cable having at least one conductor and an inpregnated insulation system is disclosed. The insulation system comprises a solid electrically insulating dielectric part with a porous, fibrous and/or laminated structure impregnated wit...
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WO/1999/033070A1 |
Electrical cable, in particular for medium- or high-voltage power transmission or distribution, having a metal shield and a semiconductive water-blocking expanded layer. This layer exerts three main functions, the first one is to elastic...
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WO/1999/033074A2 |
A switch gear station comprises at least one switch gear and at least one transformer/reactor comprising at least one winding (1) including at least one electric conductor (2). The conductor has an insulation system comprising an insulat...
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WO/1999/029024A1 |
An insulated electrical conductor for high voltage (10 to 800kV) windings comprises central conductive means and an outer semiconductive layer (18), a portion of which is coated with a coating comprising metal particles (20) for groundin...
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WO/1999/029021A1 |
An insulated conductor for high voltage (10 kV to 800 kV) machine windings comprises one or more strands, an inner, first semiconducting layer surrounding the strands, a first insulating layer surrounding the inner, first semiconducting ...
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WO/1999/029022A1 |
An insulated conductor (10) for high-voltage windings in electric machines comprises a number of strands (12), a first semi-conductive layer (14) surrounding the strands (12), a first insulating layer (16) surrounding the first semi-cond...
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WO/1999/017425A1 |
An electrical insulation (1) for a conductor (2, 3, 8), arranged in a plurality of turns for generating a magnetic field, comprising an insulant (6) of a solid material. The insulation is tubular and comprises an inner semiconducting lay...
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WO/1999/013478A1 |
An electric power cable of the kind having at least one metallic conductor, optionally a conductor screen of semiconductive material, and insulation all enclosed in an earth screen comprising wires or narrow tapes and a sheath comprising...
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WO/1999/001917A1 |
A modular overvoltage protection device (10, 40, 50, 60) for protecting at least one electric or electronic appliance from a voltage surge, the device comprising an overvoltage protection module (16, 30, 30a, 46) for connecting in-line t...
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WO/1998/058431A1 |
The invention relates to an overhead line conductor, particularly to a sheathed conductor (1) comprising at least one ridge part (5) on the surface of the conductor for damping conductor (1) vibration generated by formation of turbulence...
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WO/1998/033189A2 |
A quad cable (20) includes four conductors (22, 24, 26, 28) arranged as two differential pairs for carrying different signals. Preferably, the quad cable (20) is used to transmit data signals between devices within an Institute of Electr...
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WO/1998/033192A1 |
The invention concerns a device for electromagnetic wave-shielding of electrical conductors that permits the simple and cost-effective electromagnetic wave-shielding of electrical conductors in existing installations and that includes a ...
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WO/1998/032137A1 |
The present invention relates to an electric underwater cable comprising one or more conductors being surrounded by solid insulating material. The insulating material is impregnated with a dibenzyl toluene (DBT) oil. The cable is particu...
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WO/1998/029878A1 |
Oil-impregnated insulating plastic laminated paper for use as an oil-impregnated insulating material in, for example, an OF (Oil-Filled) cable, kraft paper for use in the laminated paper, and a power cable using the laminated paper. The ...
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WO/1998/019314A1 |
There is provided a cable which retards lightning. The cable includes at least one internal conductor which may be a power conductor or a signal conductor. A choke conductor is wound about the internal conductor in the shape of a spiral....
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WO/1998/018186A1 |
A lightning downconductor (9) forming part of a lightning protection system, the downconductor (9) has an upper end connected to a lightning collector (10) through an upper termination device (11) and a lower end connected to an earthing...
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WO/1998/014516A1 |
A semiconducting, cross-linkable and silane-containing polymer composition is disclosed, as is a cable sheathing for an electric cable which, as semiconducting layer, includes the cross-linked polymer composition. The composition is base...
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WO/1998/014960A1 |
An electric power cable of the kind having at least one metallic conductor (1), optionally a conductor screen (2) of semiconductive material, and insulation (3) all enclosed in an earth screen comprising wires (5) or narrow tapes and a s...
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WO/1998/011713A2 |
An IEEE 1394 cable (76) includes two individually shielded twisted data pairs of wires, carrying differential signals TPA and TPB, and two power conductors, carrying power signals VP and VG. The two twisted data pairs of wires are each i...
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WO/1998/001869A1 |
An electric device comprising a conductor and a porous conductor insulation impregnated with a dielectric fluid. Where the dielectric fluid comprises; a polymer; and a hydrocarbon-based fluid. The dielectric fluid being composed such tha...
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WO/1997/045931A1 |
The invention relates to an insulated conductor (10) for high-voltage windings in electric machines. The insulated conductor (10) comprises one or more strands (12), an inner, first conductive layer (14) surrounding the strands (12), a f...
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WO/1997/041570A1 |
A cable (100, 120) for transmitting electrical energy is constructed with a layer (104) of insulating and shielding material comprising pre-impregnated strands, for example glass strands (105), carrying a nonlinear dielectric material co...
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WO/1997/040504A1 |
The present invention relates to self-supporting cables that include at least one insulated conductor (1, 2, 3) that comprises a conductor (4) having at least one wire (11) and an insulation (5) around the cable conductor. The cable also...
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WO/1997/038424A1 |
The present invention discloses a cable comprising a layer of a polyethylene composition characterized in that the polyethylene composition comprises: (A) from 5 percent to 95 percent by weight of the total composition of at least one fi...
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WO/1997/003124A1 |
A cable-sheating composition and its use as outer sheath for a power cable or a communication cable are disclosed. The cable-sheating composition is a multimodal, preferably bimodal, mixture of olefin polymers, preferably ethylene plasti...
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WO/1996/031885A1 |
The description relates to a power cable with several power cores as a sector conductor and an optical core in an unoccupied sector. The optical core takes the form of a bunched cable of a plurality of stainless steel tubes with optical ...
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WO/1996/030914A1 |
A method for making a material having improved dielectric strength, and the use of said material for making power transmission cables, are disclosed. The method provides mixtures that remain macroscopically highly insulating and may loca...
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WO/1996/029710A1 |
A treated carbon black may be produced by treating carbon black with at least one polyethylene glycol having a molecular weight of from about 1,000 to about 1,000,000. The treated carbon black may be used in forming polymeric composition...
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WO/1996/028830A1 |
The electric cable (10) proposed consists of at least one electrical conductor (12) enclosed in a multi-layer insulation system comprising a semiconductor layer (15) surrounding the conductor (12), an insulating sheath (16) round the sem...
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WO/1996/023311A1 |
In order to improve the environmental acceptability and especially the recyclability of a multi-core, plastic-insulated, low-voltage heavy current cable, in which the core insulation (2), inner sleeve (4) and outer sleeve (5) are made of...
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WO/1995/027290A1 |
A power cable comprises one or more electric conductors (1), a longitudinal metal screen (6) and a radial, metallic barrier (8) to seal against penetrating water. A water blocking layer (7) of a hygroscopic material is provided between t...
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WO/1995/023418A1 |
The present invention refers to a contrivance (1) at the main cables for screening the cables from electric alternating fields. Between fields (3, 4) of insulation, which are arranged so as to surround an earth conductor (5), which is in...
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WO/1994/027300A1 |
A cable for a submersible pump has three insulated power conductors assembled in a flat configuration. The power conductors are wrapped with an inner armor such as a metal strip. An auxiliary tube line is placed alongside the inner armor...
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WO/1994/025968A1 |
The invention relates to a high-voltage conductor for overhead lines for voltages of approximately 60 kV and higher and to the use of an insulation-coated conductor (3) shielded against spark-over generated by contact with another conduc...
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WO/1994/024679A1 |
The invention relates to a method of producing an electric cable and to an electric cable. In the invention, a short-circuiting layer is provided between an insulated conductor/insulated conductors (4a) and a protective covering (7) surr...
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WO/1994/018733A1 |
Described is an electrical house wiring cable, particularly for complete building installations and installation networks used for electric power supply and its control as well as transmission of messages, data and information. The objec...
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WO/1994/011887A1 |
Multi-core cable (15) for communicating electric power and electrical signals to and from a hand held power nutrunner (10), comprising three sections (16-18) arranged in parallel with each other, all having their geometric centres (20-22...
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WO/1994/000853A1 |
A direct current oil-filled cable whose productivity is improved, whose cost is low and whose size is small. The main conductor is made of PPLP. Then, one to ten layers of kraft paper are wound on the inner side and/or outer side of the ...
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WO/1993/016478A1 |
The present invention relates to an electric cable which includes at least one cable part and at least one shield which surrounds at least one cable part, and which further includes a plastic or a rubber sheath which embraces the cable p...
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WO/1993/004486A1 |
An electrically conductive and semiconductive device utilizing polymers having resistance to water treeing and good dielectric properties as well as other improved properties. The polymer comprises ethylene polymerized with at least one ...
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WO/1992/014253A1 |
In a method for reducing the risks of breakdown of the solid dielectric insulator of transmission lines and cables operating at high voltage where said insulator normally separates the conductors of a multiwire line or the central conduc...
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WO/1991/015860A1 |
A semiconductive resin composition essentially comprising 100 parts by weight of a base resin which comprises an olefinic polymer having a crystalline melting point of lower than 86 �C or a mixture of said olefinic polymer with another...
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WO/1991/015019A1 |
The present invention provides a ribbon cable (30) for conductingAC power and digital data signals. The ribbon cable includes a plurality of spaced, parallel, wire conductors arranged in a row, the conductors including power conductors (...
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WO/1991/013446A1 |
An olefinic resin composition for power cables comprising an olefinic resin and m-(t-butylperoxyisopropyl)isopropylbenzene and/or p-(t-butylperoxyisopropyl)isopropylbenzene. This composition gives a cross-linked product which is suitable...
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WO/1990/001776A1 |
Method for increasing the resistance to humidity of a high voltage electric cable of the type comprising a conducting core (1) surrounded by an insulating layer of polymer material (3), for example polyethylene, wherein a protection subs...
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WO/1989/000783A1 |
A method of manufacturing composite cables, in particular marine cables, comprising a plurality of spliced cable sections of power conductors and sections of light conductors. With a view to uninterrupted armouring along the entire lengt...
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