[go: up one dir, main page]

WO2013020630A1 - Electric cable - Google Patents

Electric cable Download PDF

Info

Publication number
WO2013020630A1
WO2013020630A1 PCT/EP2012/002972 EP2012002972W WO2013020630A1 WO 2013020630 A1 WO2013020630 A1 WO 2013020630A1 EP 2012002972 W EP2012002972 W EP 2012002972W WO 2013020630 A1 WO2013020630 A1 WO 2013020630A1
Authority
WO
WIPO (PCT)
Prior art keywords
cable
electric cable
layer
conductor
cable according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2012/002972
Other languages
German (de)
French (fr)
Inventor
Raphael König
Heiner Gradwohl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Studer Cables AG
Original Assignee
Leoni Studer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leoni Studer AG filed Critical Leoni Studer AG
Priority to SG2014008205A priority Critical patent/SG2014008205A/en
Priority to EP12740048.9A priority patent/EP2742514B1/en
Publication of WO2013020630A1 publication Critical patent/WO2013020630A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame

Definitions

  • the invention relates to an electric cable with a conductor, with at least one surrounding insulating layer and with an outer sheath.
  • Electric cables in particular medium-voltage cables with a higher voltage range, which may be at 1000 V, must continue to function in the event of a fire for a defined period without the voltage collapsing or the current being cut off.
  • Such cables are sometimes used where the si- ensure the supply of the security of persons or the availability of necessary equipment even in case of fire.
  • These may be skyscrapers, hospitals, metro stations, metro services, tunnel power supplies, airports, etc., ie those infrastructures that have high numbers of people or large and expensive property and / or require the highest level of availability.
  • the present invention has been based on the object to provide an electric cable, which ensures a longer period of operation than known cables in case of fire and yet it is compact and inexpensive to produce in its construction.
  • the object is achieved by arranging at least one intumescent layer surrounding the conductor over the entire cable length, which is integrated in the cable in such a way that it can foam when the electric cable is heated and provides heat protection thereof.
  • Fig. 1 shows an embodiment of an inventive single conductor cable in cross section.
  • an electric cable 10 designed for single-phase operation is shown, which is sometimes also suitable for medium-voltage and high-voltage cables which are used for operating voltages, in particular for 1000 V or more.
  • the electric cable 10 has a conductor 12, which in the present case is formed by a strand consisting of a plurality of wires 12 '.
  • a surrounding insulating layer 13 and an outer shell 16 is provided.
  • an intumescent layer 15 extending over the entire cable length is arranged between the insulating layer 13 and the outer jacket 16, which foams when the electric cable is heated and thus provides heat protection over an increased time duration thereof.
  • This intumescent layer 15 is composed essentially of a polymer carrier and expandable graphite. It can be applied to a surrounding the insulating layer 13 band-shaped layer 14 and an inner shell 14 'by bandaging or extrusion.
  • This band-shaped layer 14 in turn is formed for example as a metal shield and it comes to an electrical protective function, which serves as a diffusion barrier against ingress of molecular water and heat dissipation, this to increase the life of the cable.
  • the outer jacket 16, which forms a mechanical protection of the cable 10, is made of such a material and of such a thickness that, for example, in case of fire and a corresponding heating tears and / or melts, so that this intumescent layer can foam up to a multiple of the cable outer diameter.
  • the outer shell 16 is also applied by extrusion or by bandaging and it consists, for example, essentially of a polyolefin copolymer.
  • conductor 12 could be surrounded by one or more semiconductor layers, at least one intervening dielectric isolation layer, and / or other layers.
  • a cable may be used which comprises three inventive single-conductor cables, preferably as shown in FIG. This can be equipped with an additional jacket, a reinforcement, etc.

Landscapes

  • Insulated Conductors (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

An electric cable (10) is provided with a conductor (12), at least one insulating layer (13) surrounding said conductor and an outer sheath (16). In addition, at least one intumescent layer (15) is arranged which surrounds the conductor (12) over the entire cable length and is integrated in the cable (10) in such a way that it foams up on heating and provides heat protection for this cable. This intumescent layer (15) substantially comprises a polymer substrate and expanding graphite.

Description

Elektrokabel  electric cable

Die Erfindung betrifft ein Elektrokabel mit einem Leiter, mit mindestens eine diesen umgebende Isolationsschicht und mit einem Aussenmantel. The invention relates to an electric cable with a conductor, with at least one surrounding insulating layer and with an outer sheath.

Elektrokabel, insbesondere Mittelspannungskabel mit einem höheren Spannungsbereich, welcher bei 1000 V liegen kann, müssen auch im Brandfall während einer definierten Zeit ihre Funktion aufrechterhalten, ohne dass die Spannung zusammenbricht oder der Stromschluss unterbrochen wird. Solche Kabel werden mitunter dort eingesetzt, wo die Si- cherstellung der Spannungsversorgung der Sicherheit von Personen o- der der Verfügbarkeit von notwendigen Anlagen auch im Brandfall sichergestellt werden muss. Es kann sich um Hochhäuser, Spitäler, Metrostationen, U-Bahnversorgungen, Tunnelstromversorgungen, Flughäfen etc. handeln, d.h. um solche Infrastrukturen, die hohe Personendichte oder grosse und teure Sachanlagen aufweisen und/oder höchste Verfügbarkeit verlangen. Electric cables, in particular medium-voltage cables with a higher voltage range, which may be at 1000 V, must continue to function in the event of a fire for a defined period without the voltage collapsing or the current being cut off. Such cables are sometimes used where the si- ensure the supply of the security of persons or the availability of necessary equipment even in case of fire. These may be skyscrapers, hospitals, metro stations, metro services, tunnel power supplies, airports, etc., ie those infrastructures that have high numbers of people or large and expensive property and / or require the highest level of availability.

Bekannte Energiekabel weisen in der Regel mehrere Bandierungslagen auf dem Leiter auf, die im Brandfall den Isolationserhalt auch nach dem Wegbrennen des Isolationsmaterials sicherstellen. Hochspannungskabel mit Bandierungen auf dem Kupferleiter weisen ein von normalem Mittelspannungskabel unterschiedliches Alterungsverhalten auf, und alle bekannten Versionen sind in der Herstellung sehr aufwendig. Known power cables generally have several Bandierungslagen on the conductor, which ensure the isolation in the event of fire after the burning away of the insulation material. High voltage cables with banding on the copper conductor have a different aging behavior from normal medium voltage cables, and all known versions are very expensive to manufacture.

Der vorliegenden Erfindung wurde die Aufgabe zugrundegelegt, ein Elektrokabel zu schaffen, welches im Brandfall eine längere Funktionstüchtigkeit als bekannte Kabel gewährleistet und dabei aber dennoch in seinem Aufbau kompakt und kostengünstig herstellbar ist. The present invention has been based on the object to provide an electric cable, which ensures a longer period of operation than known cables in case of fire and yet it is compact and inexpensive to produce in its construction.

Die Aufgabe ist erfindungsgemäss dadurch gelöst, dass mindestens eine den Leiter über die gesamte Kabellänge umgebende intumeszierende Schicht angeordnet ist, welche derart im Kabel integriert ist, dass sie bei Erhitzung des Elektrokabels aufschäumen kann und einen Hitzeschutz desselben bietet. According to the invention, the object is achieved by arranging at least one intumescent layer surrounding the conductor over the entire cable length, which is integrated in the cable in such a way that it can foam when the electric cable is heated and provides heat protection thereof.

Weitere bevorzugte Ausgestaltungen des erfindungsgemässen Einleiterkabels bilden den Gegenstand der abhängigen Ansprüche. Further preferred embodiments of the inventive single conductor cable form the subject of the dependent claims.

Ausführungsbeispiele sowie weitere Vorteile der Erfindung sind nachfolgend anhand der Zeichnung näher erläutert. Es zeigt: Fig. 1 ein Ausführungsbeispiel eines erfindungsgemässen Einleiterkabels im Querschnitt. Embodiments and other advantages of the invention are explained below with reference to the drawing. It shows: Fig. 1 shows an embodiment of an inventive single conductor cable in cross section.

Gemäss Fig. 1 ist ein für einen Einphasenbetrieb ausgelegtes Elektroka- bel 10 dargestellt, welches sich mitunter auch für Mittelspannungs- und Hochspannungskabel eignet, die für Betriebsspannungen insbesondere für 1000 V oder mehr eingesetzt werden. According to FIG. 1, an electric cable 10 designed for single-phase operation is shown, which is sometimes also suitable for medium-voltage and high-voltage cables which are used for operating voltages, in particular for 1000 V or more.

Das Elektrokabel 10 weist einen Leiter 12 auf, der vorliegend durch eine aus mehreren Drähten 12' bestehenden Litze gebildet ist. Zudem ist eine diesen umgebende Isolationsschicht 13 und ein Aussenmantel 16 vorgesehen. The electric cable 10 has a conductor 12, which in the present case is formed by a strand consisting of a plurality of wires 12 '. In addition, a surrounding insulating layer 13 and an outer shell 16 is provided.

Erfindungsgemäss ist zwischen der Isolationsschicht 13 und dem Aussenmantel 16 eine sich über die gesamte Kabellänge erstreckende intu- meszierende Schicht 15 angeordnet, welche bei Erhitzung des Elektro- kabels aufschäumt und dadurch einen Hitzeschutz über eine erhöhte Zeitdauer desselben bietet. According to the invention, an intumescent layer 15 extending over the entire cable length is arranged between the insulating layer 13 and the outer jacket 16, which foams when the electric cable is heated and thus provides heat protection over an increased time duration thereof.

Diese intumeszierende Schicht 15 ist im Wesentlichen aus einem Polymerträger und Blähgraphit zusammengesetzt. Sie kann auf einer die Isolationsschicht 13 umgebenden bandförmigen Schicht 14 und einem Innenmantel 14' durch Bandagieren oder Extrudieren aufgebracht werden. Diese bandförmige Schicht 14 ihrerseits ist beispielsweise als Metallschirm ausgebildet und es kommt ihr eine elektrische Schutzfunktion zu, welche als Diffusionssperre gegen Eindringen von molekularem Wasser und als Wärmeableitung dient, dies zur Erhöhung der Lebensdauer des Kabels. This intumescent layer 15 is composed essentially of a polymer carrier and expandable graphite. It can be applied to a surrounding the insulating layer 13 band-shaped layer 14 and an inner shell 14 'by bandaging or extrusion. This band-shaped layer 14 in turn is formed for example as a metal shield and it comes to an electrical protective function, which serves as a diffusion barrier against ingress of molecular water and heat dissipation, this to increase the life of the cable.

Der einen mechanischen Schutz des Kabels 10 bildenden Aussenmantel 16 ist aus einem solchen Material und einer solchen Dicke hergestellt, dass dieser beispielsweise im Brandfall und einer entsprechenden Erhit- zung reisst und/oder schmilzt, damit diese intumeszierende Schicht um ein Mehrfaches des Kabelaussendurchmessers aufschäumen kann. Der Aussenmantel 16 ist ebenfalls im Extrudierverfahren oder durch Bandagieren aufgebracht und er besteht zum Beispiel im Wesentlichen aus einem Polyolefin-Copolymer. The outer jacket 16, which forms a mechanical protection of the cable 10, is made of such a material and of such a thickness that, for example, in case of fire and a corresponding heating tears and / or melts, so that this intumescent layer can foam up to a multiple of the cable outer diameter. The outer shell 16 is also applied by extrusion or by bandaging and it consists, for example, essentially of a polyolefin copolymer.

Die Erfindung ist mit dem obigen Ausführungsbeispiel ausreichend dargetan. Sie könnte aber noch anders ausgestaltet sein. So könnte zum Beispiel der Leiter 12 von einer oder mehreren Halbleiterschichten, von wenigstens einer dazwischen liegenden Dielektrikum-Isolationsschicht und/oder von weiteren Schichten umgeben sein. The invention is sufficiently demonstrated with the above embodiment. But it could be designed differently. For example, conductor 12 could be surrounded by one or more semiconductor layers, at least one intervening dielectric isolation layer, and / or other layers.

Für den dreiphasigen Betrieb mit Drehstrom kann ein Kabel verwendet werden, das drei erfindungsgemässe, vorzugsweise wie in Fig. 1 dargestellt, ausgebildete Einleiterkabel umfasst. Dieses kann mit einem Zusatzmantel, einer Armierung etc. ausgerüstet sein. For the three-phase operation with three-phase current, a cable may be used which comprises three inventive single-conductor cables, preferably as shown in FIG. This can be equipped with an additional jacket, a reinforcement, etc.

Claims

PATENTANSPRÜCHE 1 . Elektrokabel, mit einem Leiter, mindestens eine diesen umgebende Isolationsschicht (13) und einem Aussenmantel (16), dadurch gekennzeichnet, dass 1 . Electric cable, comprising a conductor, at least one surrounding insulating layer (13) and an outer jacket (16), characterized in that mindestens eine den Leiter (12) über die gesamte Kabellänge umgebende intumeszierende Schicht (15) angeordnet ist, welche derart im Kabel (10) integriert ist, dass sie bei Erhitzung aufschäumt und einen Hitzeschutz dieses Kabels bietet. at least one intumescent layer (15) surrounding the conductor (12) over the entire cable length is arranged, which is integrated in the cable (10) in such a way that it foams when heated and provides heat protection for this cable. 2. Elektrokabel nach Anspruch 1 , dadurch gekennzeichnet, dass die intumeszierende Schicht (15) im Wesentlichen aus einem Polymerträger und Blähgraphit zusammengesetzt ist. 2. Electric cable according to claim 1, characterized in that the intumescent layer (15) is composed essentially of a polymer carrier and expandable graphite. 3. Elektrokabel nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die intumeszierende Schicht (1 5) zwischen der Isolationsschicht (13) und dem Aussenmantel (16) angeordnet ist. 3. Electric cable according to claim 1 or 2, characterized in that the intumescent layer (1 5) between the insulating layer (13) and the outer sheath (16) is arranged. 4. Elektrokabel nach Anspruch 3, dadurch gekennzeichnet, dass der einen mechanischen Schutz des Kabels (10) bildenden Aussenmantel (16) aus einem solchen Material und einer solchen Dicke hergestellt ist, dass dieser beispielsweise im Brandfall und einer entsprechenden Erhitzung reisst und/oder schmilzt, damit diese intumeszierende Schicht (15) um ein Mehrfaches des Kabelaussendurchmessers aufschäumen kann. 4. Electric cable according to claim 3, characterized in that the mechanical protection of the cable (10) forming the outer jacket (16) is made of such a material and such a thickness that it breaks, for example, in case of fire and a corresponding heating and / or melts so that this intumescent layer (15) can foam by a multiple of the cable outer diameter. 5. Elektrokabel nach einem der vorangehenden Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zwischen der Isolationsschicht (13) und der als Band vorgesehenen oder extrudierten intumeszierenden Schicht (15) eine bandförmige Schicht (14) und ein Innenmantel (14') vorgesehen ist. 5. Electric cable according to one of the preceding claims 1 to 4, characterized in that between the insulating layer (13) and provided as a band or extruded intumescent layer (15) a band-shaped layer (14) and an inner jacket (14 ') is provided. 6. Elektrokabel nach einem der vorangehenden Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Aussenmantel (16) im Extrudierver- fahren oder durch Bandagieren aufgebracht ist. 6. Electric cable according to one of the preceding claims 1 to 5, characterized in that the outer jacket (16) drive in the extrusion or by bandaging is applied. 7. Elektrokabel nach einem der vorangehenden Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Aussenmantel (16) im Wesentlichen aus einem Polyolefin-Copolymer zweischichtig zusammengesetzt ist. 7. Electrical cable according to one of the preceding claims 1 to 6, characterized in that the outer jacket (16) is composed of two layers substantially of a polyolefin copolymer.
PCT/EP2012/002972 2011-08-09 2012-07-16 Electric cable Ceased WO2013020630A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SG2014008205A SG2014008205A (en) 2011-08-09 2012-07-16 Electric cable
EP12740048.9A EP2742514B1 (en) 2011-08-09 2012-07-16 Electric cable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01317/11 2011-08-09
CH01317/11A CH705184B1 (en) 2011-08-09 2011-08-09 Electrical cable.

Publications (1)

Publication Number Publication Date
WO2013020630A1 true WO2013020630A1 (en) 2013-02-14

Family

ID=46581886

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/002972 Ceased WO2013020630A1 (en) 2011-08-09 2012-07-16 Electric cable

Country Status (5)

Country Link
EP (1) EP2742514B1 (en)
CH (1) CH705184B1 (en)
MY (1) MY175367A (en)
SG (1) SG2014008205A (en)
WO (1) WO2013020630A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2439395A1 (en) * 2013-11-15 2014-01-22 Relats, S. A. Protective cover against fire, thermal and electric self-healing (Machine-translation by Google Translate, not legally binding)
WO2014202807A1 (en) * 2013-06-19 2014-12-24 Relats, S. A. Self-closing thermal and electrical fire protection sheath
CN107731365A (en) * 2017-09-29 2018-02-23 惠州市鼎丰泰科技有限公司 A new type of conductive row
CN110660521A (en) * 2019-09-30 2020-01-07 江苏亨通线缆科技有限公司 High-performance fire-resistant flame-retardant railway signal cable and preparation method thereof
CN117936178A (en) * 2024-03-18 2024-04-26 广州南洋电缆集团有限公司 Fire-retardant fire-resistant cable for monitoring line for fire control

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017609A1 (en) * 1979-04-10 1980-10-15 Siemens Aktiengesellschaft Electrical or optical cable insulated with synthetic material and comprising a flame resistant inner mantle
US5132054A (en) * 1991-05-16 1992-07-21 Specified Technologies Inc. Composition of matter for a fire retardant intumescent material having two stages of expansion and a process for making thereof
EP1323670A2 (en) * 2001-12-19 2003-07-02 HILTI Aktiengesellschaft Expandable graphite intercalation compounds, process for their preparation and their use
US20040216914A1 (en) * 2003-03-10 2004-11-04 Nordx/Cdt, Inc. Communications cable
EP1489136A1 (en) * 2003-06-18 2004-12-22 HILTI Aktiengesellschaft Use of thermoexpandable graphite intercalation compounds for the preparation of fireproof seals and process for their preparation
WO2008079584A1 (en) * 2006-12-19 2008-07-03 Union Carbide Chemicals & Plastics Technology Llc Cable comprising a shear thickening composition

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103328544B (en) * 2010-12-02 2015-04-01 陶氏环球技术有限责任公司 Intumescent Halogen-Free Silicon-Phosphorus-Nitrogen Based Polymeric Flame Retardants
CA2839031C (en) * 2011-06-21 2017-02-14 Dow Global Technologies Llc Halogen-free flame-retardant polymer composition comprising piperazine based intumescent flame retardant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017609A1 (en) * 1979-04-10 1980-10-15 Siemens Aktiengesellschaft Electrical or optical cable insulated with synthetic material and comprising a flame resistant inner mantle
US5132054A (en) * 1991-05-16 1992-07-21 Specified Technologies Inc. Composition of matter for a fire retardant intumescent material having two stages of expansion and a process for making thereof
EP1323670A2 (en) * 2001-12-19 2003-07-02 HILTI Aktiengesellschaft Expandable graphite intercalation compounds, process for their preparation and their use
US20040216914A1 (en) * 2003-03-10 2004-11-04 Nordx/Cdt, Inc. Communications cable
EP1489136A1 (en) * 2003-06-18 2004-12-22 HILTI Aktiengesellschaft Use of thermoexpandable graphite intercalation compounds for the preparation of fireproof seals and process for their preparation
WO2008079584A1 (en) * 2006-12-19 2008-07-03 Union Carbide Chemicals & Plastics Technology Llc Cable comprising a shear thickening composition

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014202807A1 (en) * 2013-06-19 2014-12-24 Relats, S. A. Self-closing thermal and electrical fire protection sheath
ES2439395A1 (en) * 2013-11-15 2014-01-22 Relats, S. A. Protective cover against fire, thermal and electric self-healing (Machine-translation by Google Translate, not legally binding)
CN107731365A (en) * 2017-09-29 2018-02-23 惠州市鼎丰泰科技有限公司 A new type of conductive row
CN110660521A (en) * 2019-09-30 2020-01-07 江苏亨通线缆科技有限公司 High-performance fire-resistant flame-retardant railway signal cable and preparation method thereof
CN117936178A (en) * 2024-03-18 2024-04-26 广州南洋电缆集团有限公司 Fire-retardant fire-resistant cable for monitoring line for fire control
CN117936178B (en) * 2024-03-18 2024-07-09 广州南洋电缆集团有限公司 Fire-retardant fire-resistant cable for monitoring line for fire control

Also Published As

Publication number Publication date
EP2742514B1 (en) 2016-08-31
MY175367A (en) 2020-06-23
EP2742514A1 (en) 2014-06-18
CH705184B1 (en) 2015-07-15
SG2014008205A (en) 2014-04-28
CH705184A2 (en) 2013-02-15

Similar Documents

Publication Publication Date Title
EP1484945B1 (en) Electrical heating cable or heating band
EP2742514B1 (en) Electric cable
DE3209577A1 (en) INSULATED HIGH VOLTAGE CABLE
DE112016003022T5 (en) Superconducting wire
DE10023204A1 (en) Insulation of stator windings with shrink sleeves
DE102013005901A1 (en) Grounding cable i.e. rail grounding cable, for grounding e.g. handrails in station areas, has monitoring line surrounded by sleeve-like, pressure-resistant supporting element, which includes supporting wires that are coiled around line
DE69736918T2 (en) Two-layer elastic tubular enclosure for electrical components, in particular electrical cable terminations, and associated production method and assembly
CH709972B1 (en) Electrical cable.
EP1667170A2 (en) Communication cable
EP2811491A1 (en) Electric cable, in particular for solar plants or wind turbines
EP2426673B1 (en) Underwater cable
DE102009043164B4 (en) Electric cable
EP1995738B1 (en) Electrical conductor
EP1760855B1 (en) Lightning current conducting device
EP0015369A1 (en) Electrical-power cable with synthetic watertight insulation, process for its manufacture and apparatus for carrying out this process
DE10107429B4 (en) Heating cable with multi-layer construction
DE2942925A1 (en) HUMIDITY PROTECTED ELECTRIC CABLE
EP2759031B1 (en) Lightning conductor device
CH704175B1 (en) Single core for the use of a particular operating voltage greater than 1000 volts.
DE102011001889A1 (en) Solar panel lead line i.e. twin spacer, for connecting connection box at e.g. solar panel, to detect solar panel theft during solar plant operation, has conductor whose cross-sectional area is smaller than that of another conductor
DE102010046955A1 (en) Electric cable for current transmission in automobile industry, has single wires made of copper and copper-tin alloy and extended in longitudinal direction of cable, where percentage of tin in alloy is defined by preset equation
CH702147A2 (en) Electric cables, in particular solar cable, and a method for manufacturing the cable.
WO2018141529A1 (en) Cable, in particular for medical applications
EP0815567B1 (en) Electric cable
DE10217382B4 (en) Electrical line for preventing a stable arc, system with such a line

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12740048

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2012740048

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2012740048

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE