EP1168374A2 - Conducteur électrique de transmission composite et renforcé - Google Patents

Conducteur électrique de transmission composite et renforcé Download PDF

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Publication number
EP1168374A2
EP1168374A2 EP01115164A EP01115164A EP1168374A2 EP 1168374 A2 EP1168374 A2 EP 1168374A2 EP 01115164 A EP01115164 A EP 01115164A EP 01115164 A EP01115164 A EP 01115164A EP 1168374 A2 EP1168374 A2 EP 1168374A2
Authority
EP
European Patent Office
Prior art keywords
cable
current carrying
core
cables
electrical current
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.)
Withdrawn
Application number
EP01115164A
Other languages
German (de)
English (en)
Other versions
EP1168374A3 (fr
Inventor
William Brandt Goldsworthy
George Korzeniowski
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.)
W Brandt Goldsworthy and Associates Inc
Original Assignee
W Brandt Goldsworthy and Associates Inc
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 W Brandt Goldsworthy and Associates Inc filed Critical W Brandt Goldsworthy and Associates Inc
Publication of EP1168374A2 publication Critical patent/EP1168374A2/fr
Publication of EP1168374A3 publication Critical patent/EP1168374A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/005—Power cables including optical transmission elements

Definitions

  • This invention relates in general to certain new and useful improvements in electrical transmission cables and, more particularly, to electrical transmission cables which have a composite reinforced component to provide loading capabilities and alternatively which permits the introduction of fiber optic filaments as an integral part of the transmission cable.
  • cable of the present invention not only is an increase in conductivity exploited, but there is a substantial advantage in lower weight for a given cable diameter. This is due to the fact that the same weight of composite material can be distributed as an outer shell and which would be relatively thin in cross section compared to a composite center core. Moreover, this construction reduces the heating and subsequent energy loss, as well as the line sag which occurs with the stranded steel cable member. In addition, the use of the aluminum core composite allows the advantage of greater conductivity from use of smelted aluminum versus the alloyed aluminum.
  • the fiber optic cables when carried by electrical transmission conductors suffer the environmental effects of weathering, ultraviolet radiation, and the like. It would, of course, be desirable to combine the transmission of fiber optic signals with that of the electrical signals in order to effectively combine a transmission grid into a transmission-communication grid.
  • the present invention relates in general to electrical current carrying conductors which utilize an outer load bearing component formed of a reinforced plastic composite material as well as a central core serving as an electrical current carrying conductor and formed of a highly electrically conductive current carrying material.
  • the cables of the present invention have an elongate continuous central bore extending therethrough for carrying fiber optic cables or other type of communication cables. In this way, the cables of the invention not only provide for power transmission and distribution but they also provide for communication transmission and distribution, thereby forming a combined transmission grid of power and communication signals.
  • one of the major objects of the invention was to provide an electrical current carrying cable that would take advantage of the fact that pure smelted aluminum has at least 10% greater conductivity than an alloyed aluminum.
  • the cable of the present invention also adds the advantage that it is capable of carrying communication signals, such as fiber optic bundles, for telecommunication. Notwithstanding and in accordance with the invention, it is no longer necessary to use the aluminum as a major portion of the load carrying capability in a final cable and, hence, it is no longer necessary to alloy that aluminum for enhancement of tensile properties. Since the aluminum in the present invention is not being used for load carrying capabilities, it can remain as smelted aluminum with virtually no physical properties for that purpose.
  • the load carrying capability is provided by the reinforced plastic composite outer sheath of the cable. The higher conductivity of the smelted aluminum can them be used to its fullest advantage.
  • this jacket provides both water protection for the center aluminum core and, moreover, reduces the exposure of the aluminum core to other weathering and environmental conditions. It further insulates the communications cable, such as the fiber optics cable, from exposure to environmental conditions.
  • the cable of the invention is effective in achieving security of messages transmitted over the fiber optic cables, in that the location of the cable makes it difficult for access.
  • the new conductor of the present invention has at least twice the recycling effectiveness as does the ACSR.
  • the existence of this new cable along with commercial manufacturing processes allows for core extrusion and composite pultrusion processes to be used in combination in a continuous high speed, low cost, mass production assembly line.
  • the process also converts aluminum into a high value added product by producing and integrating a lightweight composite material strength member and an optical fiber for data transmission and intelligence monitoring.
  • C 1 illustrates an electrical transmission cable having a reinforced plastic composite load bearing outer sheath 10 and a central electrically conductive aluminum core 12 extending therethrough.
  • the load bearing sheath 10 is a tubular reinforced plastic composite member.
  • there is a single core material although the core may be formed of a plurality of individual aluminum layers.
  • the aluminum core could be formed of stranded wire.
  • the cable C 1 is similar in appearance to a conventional steel core cable. Consequently, it can be laid in the same fashion or suspended in the same fashion and using the same equipment as that employed for a steel core cable.
  • the outer sheath 10 is initially comprised of individual windings or rovings of reinforcing materials, also as hereinafter described. As shown, helically wound strands, including both clockwise wound strand and counterclockwise wound strands, or otherwise other pattern combinations of wound strands, are applied to the central core in a desired thickness.
  • the winding of the individual strands of reinforcing material may be accomplished by any of a number of known winding systems and include, for example, those apparatus described in U.S. Patent No. 3,579,401 to William Brandt Goldsworthy, et al, U.S. Patent No. 3,769,127 to William Brandt Goldsworthy, et al, U.S. Patent No. 3,810,805 to William Brandt Goldsworthy, et al, U.S. Patent No. 3,576,705 to William Brandt Goldsworthy, et al, and U.S. Patent No. 3,654,028 to Goldsworthy, as well as numerous other patents to Goldsworthy.
  • the embodiment of Figure 1 is primarily effective for only short length cables. This is due to the fact that the core 10 is not capable of significant bending. It may be appreciated that the entire cable must be capable of being wound about a drum and transported for a substantial distance where it would then be unwound from the drum and either suspended or laid at a site of use.
  • the central core 10 is preferably formed of a plurality of individually shaped core sections 20, as best shown in the cable C 2 of Figure 3.
  • Figure 4 illustrates an embodiment of a cable C 3 similar to the cable C 2 , except that in this particular case, the individual pie-shaped sections 20 of the core 22 are formed with an arcuately shaped recess 34 formed at their inner most ends.
  • the inner most ends 34 as shown in Figures 5 and 6 are generally trapezoidal in shape. The fact that there are individual segments, such as those shown, allows for the cable to be wound upon a winch or like structure.
  • the innermost ends 34 define a central aperture 36 which receives a fiber optic cable bundle 38 having individual fiber optic cables 40.
  • Figure 6 illustrates an embodiment C 4 in which there are two semi-circular sections 52 and 54 and each of which have semi-circular openings 56 to define a central bore for receiving a fiber optic cable 38.
  • One of the sections 52 has projecting elongate prongs 60 which are adapted to fit within elongate slots 62 of the other half conductor 54.
  • Figure 7 illustrates an embodiment C 5 in which there is a cable 70 having a plurality of coolant ducts 72 for receiving a cooling fluid, such as water or an oil or the like, and which is designed to remove heat generated through the current passing through the electrical current carrying conductor.
  • a cooling fluid such as water or an oil or the like
  • Figure 8 illustrates an embodiment in which there is not an outer cylindrically shaped core formed of a reinforced plastic material. Rather, there is a metallic core 74 having a plurality of helically wound slots 76 formed on the surface of the core and which is designed to receive reinforced plastic composite strips 78.
  • Figure 16 illustrates an embodiment which also uses a central core 74 and individual strips 160. Moreover, this embodiment C 7 is provided with a central bore having a fiber optic cable bundle 162 extending therethrough.
  • Figure 14 illustrates an embodiment of a cable C 8 in which there are a plurality of fiber optic bundles 172 having individual fiber optic cables 174 and surrounded by a metallic current carrying conductor 166 having a space 168 to receive the fiber optic cables 170.
  • This is provided with outer individual spiral strips 176 of a reinforced composite load bearing member forming an outer sheath 180.
  • yet another outer sheath 182 is disposed about the sheath 176.
  • Figure 15 illustrates an embodiment C 9 in which there is a segmented core 190 formed of individual segments 192 made of a highly electrically conductive material, such as aluminum or the like.
  • the core is surrounded on its periphery by individual preformed composite segments 194, as shown. These segments do not interlock with one another but are closely spaced apart from the next adjacent segment. If desired, they could interlock, but in the embodiment as shown, the individual segments permit relatively easy slippage with respect to one another thereby allowing the cable to be easily wound.
  • the various composite segments 194 are covered by an outer sheath 196 similar to the sheath 182 in the embodiment C 8 .
  • This embodiment of the invention has also been found to be equally effective, in that the outer sheath 196 aids in protecting the cable from weathering conditions and other environmental degradation.
  • the inner core 190 is also provided with a central bore 198 to receive a fiber optic cable or other communication cable (not shown).
  • Figures 9-13 illustrate an embodiment of splicing any of the previously described electrical current carrying cables C 1 -C 9 .
  • an electrical current carrying conductor 120 similar to any of the previously described current carrying cables, is to be spliced to a similar axially aligned current carrying conductor 122, the later of which is also similar to any of the previously described current carrying cables.
  • Each of these electrical current carrying cables 120 and 122 are each provided with inner cores 124 and 126, respectively, formed of a highly conductive electrical material, such as aluminum.
  • each of the inner cores 124 and 126 carry fiber optic cables 128 and 130.
  • each of the electrical cables 120 and 122 are provided with outer reinforced plastic composite load bearing sheaths 134 and 136, respectively.
  • each of the electrical cables 120 and 122 are wound upon spools of the cable at a production site and transported to a site of use, which may be at a remote location. At that point, the individual cables are then unspooled and must be spliced together in discrete lengths. As also indicated previously, splicing of the fiber optic cables must take place at a separate fiber optic cable splicing station, as shown schematically at 138 in Figure 12. The technique of splicing fiber optic cables is conventional and is therefore neither illustrated nor described in any further detail herein.
  • the outer composite sheaths surrounding the central current carrying conductors 124 and 126 are literally severed from the remaining portions of the outer sheaths and removed in order to expose the ends of the conductors 124 and 126, as best shown in Figure 9.
  • an electrically conductive compression sleeve 140 also formed of the same material as either of the cores 124 and 126, is slid over the end of one of the cables, such as the core 126 of the cable 122.
  • an outermost reinforced plastic composite bonding sleeve 142 is also slid over the end of the cable 122 before separation of the reinforced plastic composite outer load bearing layer 136. At this point, the two cables 120 and 122 are then in a position where they can be spliced.
  • the two cables 120 and 122 are brought together, such that the cores 124 and 126 are located in abutting engagement. Thereafter, the compression sleeve 140 is actually shifted to extend over the end regions of each of the two cores 124 and 126, in the manner as shown in Figures 10 and 11. At this point, the compression sleeve may then be physically secured to the ends of the two cores 124 and 126, in the manner as shown in Figures 10-12. At this point in the splicing process, the reinforced plastic composite outer sheaths 134 and 136, which have then be removed, are replaced by the outer reinforced plastic composite sleeve 142.
  • This outer bonding sleeve 142 is axially shifted over or abut against end portions of each of the outer sheaths 134 and 136.
  • a heater (not shown) is employed for heating the reinforced plastic composite materials and pressure is applied so that the outer bonding sleeve 142 and the end portions of the sheaths 134 and 136 will partially liquefy and again flow together to form an integral bonding thereof.
  • the pressure may be applied by hand operated tools, such as tools in the nature of a pair of pliers. The pressure itself is used to consolidate the material and drive out any entrained air during the curing of the resin matrix material. In this way, it can be observed that the two major components of one cable are easily spliced to the corresponding components of the opposite cable.
  • Figures 12 and 13 also illustrate the individual components of the spliced section showing a completed splice so as to enable splicing of any of those electrical current carrying cables C 5 -C 9 .
  • the electrical transmission cables of the invention also are adapted to carry more electrical current then a comparably sized steel core conductor. This is due to the fact that more of the highly conductive metal, such as aluminum, is capable of being carried with a reinforced plastic sheath then would be carried with a similarly sized steel cable with no weight increase and even some weight decrease.

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  • Communication Cables (AREA)
  • Non-Insulated Conductors (AREA)
  • Insulated Conductors (AREA)
EP01115164A 2000-06-22 2001-06-22 Conducteur électrique de transmission composite et renforcé Withdrawn EP1168374A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59984700A 2000-06-22 2000-06-22
US599847 2000-06-22

Publications (2)

Publication Number Publication Date
EP1168374A2 true EP1168374A2 (fr) 2002-01-02
EP1168374A3 EP1168374A3 (fr) 2003-01-08

Family

ID=24401334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01115164A Withdrawn EP1168374A3 (fr) 2000-06-22 2001-06-22 Conducteur électrique de transmission composite et renforcé

Country Status (2)

Country Link
EP (1) EP1168374A3 (fr)
JP (1) JP2002184241A (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003091008A1 (fr) 2002-04-23 2003-11-06 Composite Technology Corporation Cable renforce presentant une ame composite entouree d'un conducteur d'aluminium, et son procede de production
US7019217B2 (en) 2002-04-23 2006-03-28 Ctc Cable Corporation Collet-type splice and dead end use with an aluminum conductor composite core reinforced cable
US7179522B2 (en) 2002-04-23 2007-02-20 Ctc Cable Corporation Aluminum conductor composite core reinforced cable and method of manufacture
US7438971B2 (en) 2003-10-22 2008-10-21 Ctc Cable Corporation Aluminum conductor composite core reinforced cable and method of manufacture
US7563983B2 (en) 2002-04-23 2009-07-21 Ctc Cable Corporation Collet-type splice and dead end for use with an aluminum conductor composite core reinforced cable
CN102691879A (zh) * 2011-03-25 2012-09-26 向竑 一种复合材料型材及其制造方法
WO2014076476A1 (fr) * 2012-11-16 2014-05-22 Techne Cast Limited Améliorations dans ou concernant des structures de distribution électrique
US9093191B2 (en) 2002-04-23 2015-07-28 CTC Global Corp. Fiber reinforced composite core for an aluminum conductor cable
CN105068186A (zh) * 2015-08-26 2015-11-18 国网新疆电力公司昌吉供电公司 一种开剥光缆的方法
DE102014226543A1 (de) * 2014-12-19 2016-06-23 Leoni Kabel Holding Gmbh & Co. Kg Hybridkabel, Verfahren zur Herstellung eines solchen und Verwendung eines solchen in einemKraftfahrzeug
WO2019201611A1 (fr) * 2018-04-20 2019-10-24 Innogy Se Câble d'alimentation pouvant être posé sous terre, en particulier câble sous-marin
CN113077932A (zh) * 2021-03-21 2021-07-06 安徽纵横高科电缆股份有限公司 一种兼具控制及信号传输功能的铁路机车车辆用复合电缆
CN113808787A (zh) * 2021-08-30 2021-12-17 任世强 一种高单芯架空绝缘电缆
CN114283993A (zh) * 2021-12-30 2022-04-05 东部超导科技（苏州）有限公司 一种集成光纤的光电复合超导电缆的生产保护装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101216748B1 (ko) 2011-11-16 2012-12-28 대한전선 주식회사 광유니트 도체중심 삽입형 광복합 전력케이블의 도체 접속방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973385A (en) * 1975-05-05 1976-08-10 Consolidated Products Corporation Electromechanical cable
EP0141931A2 (fr) * 1983-08-20 1985-05-22 KABEL RHEYDT Aktiengesellschaft Câble comportant des éléments de tension entourant l'âme du câble
EP0550784A1 (fr) * 1991-12-31 1993-07-14 The Furukawa Electric Co., Ltd. Câble torsadé
EP0814355A1 (fr) * 1996-06-21 1997-12-29 Lucent Technologies Inc. Câble de garde allégé à fibres optiques

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973385A (en) * 1975-05-05 1976-08-10 Consolidated Products Corporation Electromechanical cable
EP0141931A2 (fr) * 1983-08-20 1985-05-22 KABEL RHEYDT Aktiengesellschaft Câble comportant des éléments de tension entourant l'âme du câble
EP0550784A1 (fr) * 1991-12-31 1993-07-14 The Furukawa Electric Co., Ltd. Câble torsadé
EP0814355A1 (fr) * 1996-06-21 1997-12-29 Lucent Technologies Inc. Câble de garde allégé à fibres optiques

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003091008A1 (fr) 2002-04-23 2003-11-06 Composite Technology Corporation Cable renforce presentant une ame composite entouree d'un conducteur d'aluminium, et son procede de production
US7019217B2 (en) 2002-04-23 2006-03-28 Ctc Cable Corporation Collet-type splice and dead end use with an aluminum conductor composite core reinforced cable
US7041909B2 (en) 2002-04-23 2006-05-09 Compsite Technology Corporation Methods of installing and apparatuses to install an aluminum conductor composite core reinforced cable
US7060326B2 (en) 2002-04-23 2006-06-13 Composite Technology Corporation Aluminum conductor composite core reinforced cable and method of manufacture
US7179522B2 (en) 2002-04-23 2007-02-20 Ctc Cable Corporation Aluminum conductor composite core reinforced cable and method of manufacture
US7211319B2 (en) 2002-04-23 2007-05-01 Ctc Cable Corporation Aluminum conductor composite core reinforced cable and method of manufacture
US7368162B2 (en) 2002-04-23 2008-05-06 Ctc Cable Corporation Aluminum conductor composite core reinforced cable and method of manufacture
US9093191B2 (en) 2002-04-23 2015-07-28 CTC Global Corp. Fiber reinforced composite core for an aluminum conductor cable
US7563983B2 (en) 2002-04-23 2009-07-21 Ctc Cable Corporation Collet-type splice and dead end for use with an aluminum conductor composite core reinforced cable
US8022301B2 (en) 2003-04-23 2011-09-20 Ctc Cable Corporation Collet-type splice and dead end for use with an aluminum conductor composite core reinforced cable
US7608783B2 (en) 2003-04-23 2009-10-27 Ctc Cable Corporation Collet-type splice and dead end for use with an aluminum conductor composite core reinforced cable
US7438971B2 (en) 2003-10-22 2008-10-21 Ctc Cable Corporation Aluminum conductor composite core reinforced cable and method of manufacture
CN102691879B (zh) * 2011-03-25 2016-02-10 向竑 一种复合材料型材及其制造方法
CN102691879A (zh) * 2011-03-25 2012-09-26 向竑 一种复合材料型材及其制造方法
WO2014076476A1 (fr) * 2012-11-16 2014-05-22 Techne Cast Limited Améliorations dans ou concernant des structures de distribution électrique
DE102014226543A1 (de) * 2014-12-19 2016-06-23 Leoni Kabel Holding Gmbh & Co. Kg Hybridkabel, Verfahren zur Herstellung eines solchen und Verwendung eines solchen in einemKraftfahrzeug
DE102014226543B4 (de) 2014-12-19 2024-05-02 Leoni Kabel Gmbh Hybridkabel, Verfahren zur Herstellung eines solchen und Verwendung eines solchen in einemKraftfahrzeug
CN105068186A (zh) * 2015-08-26 2015-11-18 国网新疆电力公司昌吉供电公司 一种开剥光缆的方法
WO2019201611A1 (fr) * 2018-04-20 2019-10-24 Innogy Se Câble d'alimentation pouvant être posé sous terre, en particulier câble sous-marin
CN113077932A (zh) * 2021-03-21 2021-07-06 安徽纵横高科电缆股份有限公司 一种兼具控制及信号传输功能的铁路机车车辆用复合电缆
CN113077932B (zh) * 2021-03-21 2024-01-30 安徽纵横高科电缆股份有限公司 一种兼具控制及信号传输功能的铁路机车车辆用复合电缆
CN113808787A (zh) * 2021-08-30 2021-12-17 任世强 一种高单芯架空绝缘电缆
CN114283993A (zh) * 2021-12-30 2022-04-05 东部超导科技（苏州）有限公司 一种集成光纤的光电复合超导电缆的生产保护装置

Also Published As

Publication number Publication date
JP2002184241A (ja) 2002-06-28
EP1168374A3 (fr) 2003-01-08

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