SE2150930A1 - Electrical conductors and cables for military energy applications - Google Patents

Electrical conductors and cables for military energy applications

Info

Publication number
SE2150930A1
SE2150930A1 SE2150930A SE2150930A SE2150930A1 SE 2150930 A1 SE2150930 A1 SE 2150930A1 SE 2150930 A SE2150930 A SE 2150930A SE 2150930 A SE2150930 A SE 2150930A SE 2150930 A1 SE2150930 A1 SE 2150930A1
Authority
SE
Sweden
Prior art keywords
conductor
electrical
cross
cables
conductors
Prior art date
Application number
SE2150930A
Inventor
Thomas Tullholm
Original Assignee
Mee Invest Scandinavia Ab
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 Mee Invest Scandinavia Ab filed Critical Mee Invest Scandinavia Ab
Publication of SE2150930A1 publication Critical patent/SE2150930A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H01B1/023—Alloys based on aluminium
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/147—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising electric conductors or elements for information transfer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S90/00—Solar heat systems not otherwise provided for
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H01B1/026—Alloys based on copper
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/08—Several wires or the like stranded in the form of a rope
    • H01B5/10—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material
    • H01B5/102—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core
    • H01B5/104—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core composed of metallic wires, e.g. steel wires
    • 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
    • H01B7/0009—Details relating to the conductive cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • H01L31/0512—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module made of a particular material or composition of materials
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/006—Constructional features relating to the conductors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S323/00—Electricity: power supply or regulation systems
    • Y10S323/906—Solar cell systems

Abstract

Provided is an electrical conductor (1) for use in military applications comprising a central aluminum wire (11), and a plurality of copper wires (12) surrounding the central aluminum wire (11), wherein a cross-sectional area of the conductor is substantially 6 mm2 and 11.12 % - 11.32 % of the cross-sectional area is the central aluminum wire (11) and the rest is the plurality of copper wires (12).

Description

ELECTRICAL CONDUCTORS AND CABLES FOR MILITARY APPLICATIONS Technical field 1. 1. id="p-1" id="p-1"
[0001] The present invention relates generally to electrical conductors. Theinvention also relates to electrical cables. Specifically, electrical conductors and cables with reduced electromagnetic field.
Background art 2. 2. id="p-2" id="p-2"
[0002] Electrical conductors come in many different forms. Typically, it is theintended use of the conductor that determines the design of an electrical conductor.Some conductors are designed for power distribution, others are designed fortransmission of signals such as telecommunications signals as well as for otherpurposes. Furthermore, electrical conductors can be manufactured from manydifferent materials such as copper, aluminum, steel or nickel. Typically, two or more conductors are joined to form a cable. 3. 3. id="p-3" id="p-3"
[0003] An electrical current running through a conductor causes it to radiate anelectromagnetic field. This electromagnetic field can negatively affect equipment inthe proximity of the cable, which can limit for example how closely togetherconductors or cables can be arranged. Therefore, regardless of the type of conductoror cable, it is typically desired that the radiated electromagnetic field is low. Often,this is achieved by providing shielding components which surround the entire length of the conductor. 4. 4. id="p-4" id="p-4"
[0004] An alternative to providing shielding components is disclosed in US Patent9,953,737. The patent discloses a conductor and a cable having an aluminum coresurrounded by copper wires which has the effect of reducing the electromagneticfield. However, there are still many areas of technology where standardizeddimensions of electrical cables are commonly used, where such a conductor needsto be optimized in order to display a sufficiently reduced electromagnetic field. . . id="p-5" id="p-5"
[0005] Therefore, there is still a need for conductors and cables with a reducedelectromagnetic field, which are optimized for standardized dimensions. 6. 6. id="p-6" id="p-6"
[0006] Conductors and cables are used by national military and defenses all overthe world for the purpose of power distribution and/or communication. Having to stretch vast distances without interfering with, or being interfered with, puts highdemands on the low emission of the electromagnetic field of the conductors andCables. 7. 7. id="p-7" id="p-7"
[0007] Therefore, there is a need for conductors and cables adapted for use inmilitary application, having a reduced electromagnetic field.
Summag of invention[0008] An object of the present invention is to provide optimized electricalconductors and cables for military applications. 9. 9. id="p-9" id="p-9"
[0009] The invention is based on the insight, that the reduction of theelectromagnetic field can be optimized for certain dimensions of conductors when the ratio between aluminum and copper lies within a certain range. . . id="p-10" id="p-10"
[0010] According to the invention, there is provided an electrical conductor for usein military applications comprising a central aluminum wire, and a plurality of copperwires surrounding the central aluminum wire, characterized in that a cross-sectionalarea of the conductor is substantially 6 mm2 and 11.12 % - 11.32 % of the cross-sectional area is the central aluminum wire and the rest is the plurality of copper wires. 11. 11. id="p-11" id="p-11"
[0011] Having said cross-sectional area of 6 mm2 occupied by this range ofaluminum and copper, reduces the electromagnetic field more than using anotherrange. The technical effect is thus achieved by the combination of said cross- sectional are and said amount of aluminum and copper wire. 12. 12. id="p-12" id="p-12"
[0012] ln an exemplary embodiment, there is provided an electrical cablecomprising at least one 6 mm2 electrical conductor, a jacket surrounding eachelectrical conductor, a filling material, and a binder surrounding the conductors andthe filling material. 13. 13. id="p-13" id="p-13"
[0013] ln an exemplary embodiment, there is provided an electrical cable, comprising two 6 mm2 electrical conductors. 14. 14. id="p-14" id="p-14"
[0014] ln an exemplary embodiment, there is provided an electrical cable,comprising three 6 mm2 electrical conductors.
Brief description of drawinqs . . id="p-15" id="p-15"
[0015] The invention is now described, by way of example, with reference to the accompanying drawings, in which: Fig. 1 is a cross-sectional view of an electrical conductor, Figs. 2 is a cross-sectional view of an electrical cable comprising two conductors,Figs. 3 is a cross-sectional view of an electrical cable comprising one conductor, Description of embodiments 16. 16. id="p-16" id="p-16"
[0016] ln the following, a description of electrical conductors and electrical cables according to the invention will be given with reference to the drawings. 17. 17. id="p-17" id="p-17"
[0017] The invention disclosed herein relates to electrical conductors for use inapplications where it is important that the electromagnetic field radiated from theconductor is low. The intended application of the conductor will affect what design ofthe conductor is suitable. Design parameters can be for example dimension,components or an arrangement of the components. Therefore, the electricalconductors disclosed herein are a combination of a conductor design and a preferred area of application. 18. 18. id="p-18" id="p-18"
[0018] Fig. 1 shows a cross-sectional view of an electrical conductor 1corresponding to a general design of the conductor 1. A conductor is defined as anassembly of a plurality of conducting wires, and a wire is defined as a singleconducting metal thread. The electrical conductor 1 has a central core comprising analuminum wire 11. Surrounding the central core comprising the aluminum wire 11,one or more copper wires 12 are provided. The conductor 1 has a dimension whichcorresponds to the cross-sectional area of the conductor 1. The dimension of theconductor 1 comprises a first and a second cross-sectional area, which each take upa first and second cross-sectional area percentage. The first percentage correspondsto the cross-sectional area of the aluminum wire 11 and the second percentagecorresponds to the sum of the cross-sectional areas of the copper wires 12. Becausethe conductor 1 only comprises the aluminum wire 11 and the copper wires 12, the first and second area percentage have a sum equal to 100%. 19. 19. id="p-19" id="p-19"
[0019] The aluminum wire 11 and the copper wires 12 are in direct contact witheach other and are hence uncoated, naked wires without any insulation. To furtherimprove the contact between the wires, the aluminum wire 11 is made of high purityaluminum and the copper wires 12 are made of high purity copper. The high purityincreases the good contact between the wires. For example, copper according toUNS C 10100 or C11 000 can be used. Furthermore, aluminum according to EN573-3 can be used. ln a preferred embodiment the copper wires 12 have a purity of atleast 95%, in an even more preferred embodiment the copper wires 12 have a purityof at least 99%. Similarly, in a preferred embodiment the aluminum wire 11 has apurity of at least 95%, in an even more preferred embodiment the aluminum wire 11 has a purity of at least 99%. . . id="p-20" id="p-20"
[0020] As stated above, the conductor 1 in Fig. 1 shows a general design of theconductor 1. However, the intended application of the conductor will affect whatdesign of the conductor 1 is suitable. Some examples of design parameters are: thedimension of the conductor 1, the cross-sectional area of the aluminum wire 11 andthe individual copper wires 12, wherein the cross-sectional area of the aluminum wirecan be larger or smaller or the same as that of the individual copper wires 12, thecross-sectional areas of the individual copper wires being the same or different, thenumber of copper wires 12, the arrangement of the copper wires 12 around thealuminum wire 11 being in one or a plurality of layers, the copper wires 12 being ornot being twinned around the aluminum wire 11, the copper wires 12 being twinned clock wise or anticlockwise. 21. 21. id="p-21" id="p-21"
[0021] ln Fig. 2, a cross-sectional view of an embodiment of an electrical cable 6comprising two of the electrical conductor 1 is shown. The cable 6 may comprisefewer or more of the conductor 1. Each of the conductor 1 is provided with at leastone jacket 2 of insulation. The jacket 2 can be of any type used in existing cables andof any suitable material such as a polymer-based material, for example TPS 130.Furthermore, the cable 6 comprises a filling material 3. The filling material 3 can be ofany type used in existing cables and of any suitable material such as a polymer-based material. Surrounding the at least one insulated electrical conductor 1 and thefilling material 3, a binder 4 is provided. Surrounding the binder 4, an outer coating 5 is provided. 105162 22. 22. id="p-22" id="p-22"
[0022] ln Fig. 3, a cross-sectional view of an embodiment of the electrical cable 6comprising one electrical conductor 1 is shown. The cable 6 shown in Fig. 3 comprises two jackets 2 of insulation. 23. 23. id="p-23" id="p-23"
[0023] Following in an example disclosing an embodiment of the conductor 1where the design of the conductor 1 is adapted to military applications. The examples also disclose specific embodiments of the cable 6. 24. 24. id="p-24" id="p-24"
[0024] A conductor 1 for use in military applications is provided having a cross-sectional area of 6 mm2. Surprisingly, it has been found that the 6 mm2 conductoremits a lower electromagnetic field when the cross-sectional area is comprised by11.22% +/- 1%, more preferably +/- 0.5%, even more preferably +/- 0.1% of thealuminum wire 11 and 88.78% +/- 1%, more preferably +/- 0.5%, even more preferably +/- 0.1 % of the copper wires 12. . . id="p-25" id="p-25"
[0025] A cable 6,7 for use in military applications is also provided. The cable comprises at least one of the 6 mm2 conductor. 26. 26. id="p-26" id="p-26"
[0026] ln one embodiment, the cable comprises exactly two of the 6 mm2 conductor 1. 27. 27. id="p-27" id="p-27"
[0027] ln one embodiment, the cable comprises exactly three of the 6 mm2 conductor 1. 28. 28. id="p-28" id="p-28"
[0028] Preferred embodiments of a conductor and a cable have now beendisclosed. However, a person skilled in the art realizes that these can be varied within the scope of the appended claims without departing from the inventive idea. 29. 29. id="p-29" id="p-29"
[0029] All the described alternative embodiments above or parts of anembodiment can be freely combined or employed separately from each other withoutdeparting from the inventive idea as long as the combination is not contradictory.

Claims (4)

1. An electrical conductor (1) for use in military applications comprising:- a central aluminum wire (11), and- a plurality of copper wires (12) surrounding the central aluminum wire (11), c h a ra cte r i z e d in th at a cross-sectional area of the conductor is substantially6 mm2 and 11.12 % - 11.32 % of the cross-sectional area is the central aluminum wire (11) and the rest is the plurality of copper wires (12).
2. An electrical cable comprising at least one electrical conductor according to claim 1, a jacket (2) surrounding each electrical conductor, - a filling material (3), and a binder (4) surrounding the conductors and the filling material (3).
3. An electrical cable according to claim 2, comprising exactly two electrical conductors (1 ).
4. An electrical cable according to claim 2, comprising exactly three electrical conductors (1 ).
SE2150930A 2020-07-17 2020-07-17 Electrical conductors and cables for military energy applications SE2150930A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2050903A SE544585C2 (en) 2020-07-17 2020-07-17 Electrical conductor and cable for use in solar energy applications

Publications (1)

Publication Number Publication Date
SE2150930A1 true SE2150930A1 (en) 2022-01-18

Family

ID=76662500

Family Applications (3)

Application Number Title Priority Date Filing Date
SE2150928A SE2150928A1 (en) 2020-07-17 2020-07-17 Electrical conductors and cables for solar energy applications
SE2050903A SE544585C2 (en) 2020-07-17 2020-07-17 Electrical conductor and cable for use in solar energy applications
SE2150930A SE2150930A1 (en) 2020-07-17 2020-07-17 Electrical conductors and cables for military energy applications

Family Applications Before (2)

Application Number Title Priority Date Filing Date
SE2150928A SE2150928A1 (en) 2020-07-17 2020-07-17 Electrical conductors and cables for solar energy applications
SE2050903A SE544585C2 (en) 2020-07-17 2020-07-17 Electrical conductor and cable for use in solar energy applications

Country Status (3)

Country Link
SE (3) SE2150928A1 (en)
TW (1) TW202207246A (en)
WO (1) WO2022012913A2 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8525033B2 (en) * 2008-08-15 2013-09-03 3M Innovative Properties Company Stranded composite cable and method of making and using
JP2010044995A (en) * 2008-08-18 2010-02-25 Sumitomo Wiring Syst Ltd Electric wire, and connection structure of electric wire with terminal metal fitting
US20100096162A1 (en) * 2008-10-22 2010-04-22 Emilio Cerra Lightweight copper/aluminum composite conductors
CN103646719A (en) * 2013-12-17 2014-03-19 河南省亿通电线电缆有限公司 Aluminum alloy core copper stranded crosslinked overhead cable
WO2015109060A1 (en) * 2014-01-15 2015-07-23 Fisk Alloy, Inc. High strength, light weight, high conductivity hybrid cable conductor
SE538433C2 (en) * 2014-08-05 2016-06-21 Mee Invest Scandinavia Ab Electrical wire
US9530532B2 (en) * 2014-08-22 2016-12-27 Abb Schweiz Ag Hybrid conductor with circumferential conducting layers
JP2019207811A (en) * 2018-05-30 2019-12-05 矢崎総業株式会社 Insulation wire

Also Published As

Publication number Publication date
WO2022012913A3 (en) 2022-02-24
WO2022012913A2 (en) 2022-01-20
TW202207246A (en) 2022-02-16
SE2150928A1 (en) 2022-01-18
SE544585C2 (en) 2022-07-26
SE2050903A1 (en) 2022-01-18

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