GB2349975A - Low resistance cable - Google Patents
Low resistance cable Download PDFInfo
- Publication number
- GB2349975A GB2349975A GB0010163A GB0010163A GB2349975A GB 2349975 A GB2349975 A GB 2349975A GB 0010163 A GB0010163 A GB 0010163A GB 0010163 A GB0010163 A GB 0010163A GB 2349975 A GB2349975 A GB 2349975A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electric
- low resistance
- conductive
- layered sheets
- cable
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/02—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by their form
- H01B12/06—Films or wires on bases or cores
-
- 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
- H01B7/0018—Strip or foil 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Insulated Conductors (AREA)
Abstract
An electric cable comprises at least two layers or sheets of conducting material 1, each layer or sheet separated, or enclosed, by an electrical insulating material 2. The cable may also comprise on outer layer of insulating material 3. In an alternative embodiment, an electric cable comprises at least one continuous sheet of electrical conducting material 4 covered with insulating material 5, folded in an undulating or concertina shaped manner. It is proposed that electric current is conducted over the surface of a conductor at all frequencies. Therefore, the electrical resistance is proposed to be directly proportional to the ratio of the cable length and the perimeter length of the cross-sectional area of the conducive layers or sheets.
Description
2349975 LOW RESISTANCE SURFACE CONDUCTING CONDUCTOR ELECTRIC CABLE This
invention relates to a low resistance surface conducting conductor electric cable.
The electric cable is well known for (lie transmission of electric power and electric signal in the form of electric current. The electric cable comprises an electrical conductor, such as copper, in the form of a wire insulated or uninsulated along its length forming a single core electric cable, or wires individually insulated or uninsulated twisted together along its length forming a multiple core electric cable.
Wilen electric power is transmitted along tile conductor of ail electric cable there is a loss of power equal to the electric current squared and the product of the electrical resistance of the conducting material from which (lie conductor is made. The power loss can be minimized by reducing the amount of electric current being transmitted by transforming it down whilst substantially maintaining the electric power being transmitted and or by reducing the electrical resistance of the electrical conductor, ideally to zero, by utilizing the relationship between the electrical resistance of the conductor, its resistivity, its length and its crosssectional area, which assumes electric current is conducted through the conductor, in the form of the following equation:
R = pL a Where, R = the resistance of electrical conductor measured in olims. p = the resistivity of electrical conductor measured in olim-meter.
L = the length (if electrical conductor rneasured in nieters.
a = the cross-sectional area of electrical conductor measured in metel.2 From the equation the electrical resistance can be reduced to a level of near zero or superconductivity, if the and length of the conductor remains constant, by reducing the resistivity of the conduc.ting ma(erial by using a low resistivity conducting material and or super-cooling the conducting material near to a temperature of absolute zero, or by increasing the cross-sectional area of the electrical conductor but the resulting cable would be expensive and impractical. 1 have discovered and proved by experimentation that electric current is conducted over the surface of an electric conductor at all frequencies, which has resulted in the electrical, the resistivity, the length, and perimeter length of cross-sectional area being related in the following way.
R=pL p Where, R = tile resistance of the electrical conductor measured in obtins, p = the resistivity of tile electrical conductor measured ill ohms, L = the length of the electrical conductor measured in meters and P = the perimeter of (lie cross-sectional area of the electrical conductor measured in meters It is on this premise that the following invention is based.
According to tile present invention there is to be provided a low resistance surface conducting conductor electric cable comprising at least two layers or conductive sheets of electric conducting material, which can be a minimum thickness of one atomic diameter of the electric conducting material, each sheet being separated and can be enclosed by all electric insulating material, which can be of minimum thickness of one atomic diameter of the electric insulating material, the electric resistance of the conducting material being directly proportional to tile ratio of the length of one the conductor layered sheets or (lie cable length and the aggregate perimeter lengths of cross-sectional area of tile conductive sheets call be progressively reduced to superconductivity, by increasing the aggregate perimeter length of cross-sectional area of the conductive layered sheets and keeping tile cable length constant by increasing the number of conductive layer., or sheets to a critical ratio of cable length and tile aggregate perimeter length of cross-sectional area of the conductive layered sheets.
The invention embodies a plurality of elongated sheets which may be arranged in separate mutually parallel planes or layers. Each sheet is electrically insulated from the other may be individually insulated and may include a further insulating layer.
Another embodiment of the invention comprises a sheet of elongated electric conducting material suitably electrically insulted and folded in at least one undulating or concerti na-shaped manner, which may include a further outer insulating layer.
Another embodiment of the invention comprises alternate sheets or layer of electric conducting material and electric insulating material with the insulating material at the beginning and at the end of the alternations, which may include a further outer insulating layer.
Specific embodiments of the invention will be described by way of examples with reference to the accompanying diagrams in which: Figure 1. Shows the first embodiment of the cross-sectional area of tile electrical cable. Figure 2. Shows the second embodiment of tile cross-sectional area of tile electrical cable.
Referring to tile drawings figA the electric cable comprisesstrips of electrical conducting materiall (four in this example) individually insulated 2 and layered one on top of the other or layered multiply one on top of the other separated by insulating material all enclosed by insulating material 3 along the length of the cable (not shown).
Another configuration of the electric cable fig.2 comprises a continuous sheet of electrical conducting material 4 across the cross-sectional area of the cable covered completely with insulating material 5, folded in a undulating or concertina-sbaped manner enclosed by insulating material 3 along the length of the cable (not shown). The electrical conducting material of the cable can also be configured in the form of continuous sheets individually insulated across the cross-sectional area of the cable layered one on top of the other and folded in a undulating or concertina-shaped manner (four in this example) and enclosed by insulating material along the length of the cable (not shown).
Claims (10)
1. A low resistance surface conducting conductor electric cable comprising at lea,t two elongated layers or sheet., electric conducting material, which call be of minimum thickness of ohe atomi diameter of the conductive material, each conductive layer or sheet being separated by and can enclosed by all electric insulating material, which can be of minimum thicknes one atomic diameter of the insulating material, the electric resistance of the conductive layered sheets being directly proportional to,/ratio of the cable length and tile perimeter length of cross-sectional area of the conductive layered sheets can be progressively reduced to superconductivity by increasing the perimeter length of cross-sectional area of the conductive layered sheets, for a constant cable length, by increasing the number of conductive layered sheets. to a critical ratio of cable length and aggregate perimeter length of cross-sectional area of the conductive layer,-, or sheets.
2. A low resistance surface conducting conductor electric cable according to claim 1 comprising a plurality of elongated layered sheets of electric conducting material of minimum thickness of one atomic diameter of (lie conducting material.
3. A low resistance surface conducting conductor electric cable according to claims in 1 and 2 whereby the conductive layered sheets are separated by and can be enclosed by an electric insulating material of minimum thickness of one atomic diameter of the insulating material.
4. A low resistance surface conducting conductor electric cable according to claims 2 and 3 whereby the electric resistance of the conductive layered sheets are directly proportional to the ratio of the cable length and the aggregate perimeter length of cross-sectional area of the conductive layered sheets.
5. A low resistance surface conducting conductor electric cable whereby the resistance of the conductive layered sheets can be progressively reduced to superconductivity by increasing the number of conductive layers or sheets to critical ratio of cable leng!h to aggregate perimeter length of cross-sectional area of the conductive layered sheets.
6. A low resistance surface conducting conductor electric cableaccording to any preceding claim wherein a electrical conducting sheet suitably electrically insulated and folded in at least one undulation or concerti na-shaped manner. 1
7. A low resistance surface conducting coRductor electric cable according to claim 6 comprising alternate layered sheets of electric conducting and insulating material, with the insPlating material being the first and fast layer or sheet and folded in a least one undulation or concertina- shaped manner.
8. A low resistance surface conducting conductor electric cable according to claims 6 and 7 whereby the electric conducting and insulating layered sheets can be each of minimum thickness of one atomic diameter of each material respectively.
9. A low resistance surface conducting conductor electric cable according to any preceding claim comprising an outer layer of electric insulating material.
10. A low resistance surface conducting conductor electric cable substantially as described herein with reference to figures 1 and 2 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9911307.8A GB9911307D0 (en) | 1999-05-14 | 1999-05-14 | Low resistance surface conducting conductor electric cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0010163D0 GB0010163D0 (en) | 2000-06-14 |
| GB2349975A true GB2349975A (en) | 2000-11-15 |
Family
ID=10853520
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB9911307.8A Ceased GB9911307D0 (en) | 1999-05-14 | 1999-05-14 | Low resistance surface conducting conductor electric cable |
| GBGB9913219.3A Ceased GB9913219D0 (en) | 1999-05-14 | 1999-06-07 | Surface conducting electrical connector |
| GB0010163A Withdrawn GB2349975A (en) | 1999-05-14 | 2000-04-26 | Low resistance cable |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB9911307.8A Ceased GB9911307D0 (en) | 1999-05-14 | 1999-05-14 | Low resistance surface conducting conductor electric cable |
| GBGB9913219.3A Ceased GB9913219D0 (en) | 1999-05-14 | 1999-06-07 | Surface conducting electrical connector |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU4768400A (en) |
| GB (3) | GB9911307D0 (en) |
| WO (1) | WO2000070625A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004032205A2 (en) * | 2002-09-26 | 2004-04-15 | Freescale Semiconductor, Inc. | Current-carrying electronic component and method of manufacturing same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1581778A (en) * | 1976-08-24 | 1980-12-17 | Rau Swf Autozubehoer | Electricity supply to at least one constructional unit comprising one or more electrical loads |
| US4409427A (en) * | 1981-11-30 | 1983-10-11 | Plummer Iii Walter A | Radio frequency shielding jacket for multiple ribbon cables |
| US4783579A (en) * | 1986-04-29 | 1988-11-08 | Amp Incorporated | Flat multi-conductor power cable with two insulating layers |
| US4808773A (en) * | 1987-10-01 | 1989-02-28 | Digital Equipment Corporation | Low impedance cable |
| US5084594A (en) * | 1990-08-07 | 1992-01-28 | Arrowsmith Shelburne, Inc. | Multiwire cable |
| WO1994022148A1 (en) * | 1993-03-15 | 1994-09-29 | Ole Sahlholdt Goertz | Characteristic impedance corrected audio signal cable |
| EP0903757A1 (en) * | 1997-09-19 | 1999-03-24 | W.L. GORE & ASSOCIATES GmbH | Electrical signal line cable assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3530032A1 (en) * | 1985-08-22 | 1987-02-26 | Reiner Mannertz | Current-carrying cable |
| DE9113471U1 (en) * | 1991-10-25 | 1992-01-02 | AEG Westinghouse Transport-Systeme GmbH, 1000 Berlin | Low-inductance line pair |
| DE9302174U1 (en) * | 1993-02-16 | 1994-06-09 | Automation Dr. Meggl Gmbh, 85757 Karlsfeld | Flexible electrical cable |
-
1999
- 1999-05-14 GB GBGB9911307.8A patent/GB9911307D0/en not_active Ceased
- 1999-06-07 GB GBGB9913219.3A patent/GB9913219D0/en not_active Ceased
-
2000
- 2000-04-26 GB GB0010163A patent/GB2349975A/en not_active Withdrawn
- 2000-05-09 WO PCT/GB2000/001757 patent/WO2000070625A1/en active Application Filing
- 2000-05-09 AU AU47684/00A patent/AU4768400A/en not_active Abandoned
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1581778A (en) * | 1976-08-24 | 1980-12-17 | Rau Swf Autozubehoer | Electricity supply to at least one constructional unit comprising one or more electrical loads |
| US4409427A (en) * | 1981-11-30 | 1983-10-11 | Plummer Iii Walter A | Radio frequency shielding jacket for multiple ribbon cables |
| US4783579A (en) * | 1986-04-29 | 1988-11-08 | Amp Incorporated | Flat multi-conductor power cable with two insulating layers |
| US4808773A (en) * | 1987-10-01 | 1989-02-28 | Digital Equipment Corporation | Low impedance cable |
| US5084594A (en) * | 1990-08-07 | 1992-01-28 | Arrowsmith Shelburne, Inc. | Multiwire cable |
| WO1994022148A1 (en) * | 1993-03-15 | 1994-09-29 | Ole Sahlholdt Goertz | Characteristic impedance corrected audio signal cable |
| EP0903757A1 (en) * | 1997-09-19 | 1999-03-24 | W.L. GORE & ASSOCIATES GmbH | Electrical signal line cable assembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004032205A2 (en) * | 2002-09-26 | 2004-04-15 | Freescale Semiconductor, Inc. | Current-carrying electronic component and method of manufacturing same |
| WO2004032205A3 (en) * | 2002-09-26 | 2004-07-01 | Motorola Inc | Current-carrying electronic component and method of manufacturing same |
| CN1307653C (en) * | 2002-09-26 | 2007-03-28 | 飞思卡尔半导体公司 | Current-carrying electronic component and method of manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9911307D0 (en) | 1999-07-14 |
| GB9913219D0 (en) | 1999-08-04 |
| GB0010163D0 (en) | 2000-06-14 |
| WO2000070625A1 (en) | 2000-11-23 |
| AU4768400A (en) | 2000-12-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |