US3681514A - Electrical cable - Google Patents
Electrical cable Download PDFInfo
- Publication number
- US3681514A US3681514A US29312A US3681514DA US3681514A US 3681514 A US3681514 A US 3681514A US 29312 A US29312 A US 29312A US 3681514D A US3681514D A US 3681514DA US 3681514 A US3681514 A US 3681514A
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- US
- United States
- Prior art keywords
- armor
- wire
- surrounding
- core
- wires
- 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.)
- Expired - Lifetime
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Classifications
-
- 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
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/226—Helicoidally wound metal wires or tapes
-
- 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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
- H01B7/045—Flexible cables, conductors, or cords, e.g. trailing cables attached to marine objects, e.g. buoys, diving equipment, aquatic probes, marine towline
Definitions
- This invention relates to metal cables, and more particularly to preformed wire rope having high tensile strength while at the same time carrying one or more wires having high electrical conductivity.
- Another object of the invention is to provide a seven strand high strength wire cable wherein the core includes a electrical conductor.
- FIGS. 1, 2 and 3 are cross-sections of three forms of combined electrically conducting and load bearing ropes.
- FIG. 4 is a cross-section of core which can be used in the ropes shown in FIGS. 1-3.
- FIG. 5 is a side view of a section of the core shown in FIG. 4.
- FIGS. 6, 7 and 8 are cross-sections of various armor wires used in FIGS. 4 and 5.
- FIGS. 1 and 2 show cross-sectional arrangements of single conductor towing cables suitable for use as a towing rope, and in this connection it should be noted that the use of the term single conductor is intended to indicate only that a single strand of the rope is utilized for the transmission of electrical energy although there may be more than one electrical wire contained within that single strand.
- the cable is a seven strand cable having six outer strands, indicated generally by numerals 39, each of which may comprise seven steel or other high tensile strength metal wires, these six strands being helically wound about a core, indicated generally by numeral 40.
- the core is composed of one or more copper, aluminum or other electrically conductive wires 41 which may, or may not, be electrically insulated from each other, in the drawing they are bare wires forming a single conductor.
- This inner group of conductors may be surrounded with an insulating jacket of polyethylene or polypropylene or other similar material 42 and, in addition, this coating may be surrounded with a jacket of braided rayon 43 which, in turn, may be covered with a coating of nylon 44 with a final armor covering composed of twelve steel or other wear-resistant metal wires 45.
- the lay of the armor wires 45 should be opposite to the lay of the outer strands 39, for example, if the outer strands are preformed with a right-hand lay, the inner wires should be preformed with a left-hand lay.
- Such an arrangement distributes radial pressures incident to winding in multiple layers on small drums and small diameter shenves.
- the form of single conductor cable shown in FIG. 2 differs somewhat from that of FIG. 1 although it still basically comprises a seven strand cable having six outer strands, indicated generally by numerals 46, of high tensile steel or other similar material surrounding a core, indicated generally by numeral 47, which in turn is composed of one or more central electrically conductive filaments 40.
- the conductors may also be surrounded with a polypropylene or polyethylene coating 49 covered in turn by a rayon braided jacket 50 which itself is coated with a nylon plastic 51.
- the armor comprises fifteen wires 52 and, as in the case of the previous form of cable, if the outer strands 46 are preformed with a righthand lay the armor wires 52 should be preformed with a left-hand lay.
- FIG. 3 discloses another modified form of seven strand cable having an electrically conductive core similar to the cable shown in FIGS. 1 and 2 and in this form the six outer strands of high tensile steel are indicated by numeral 60, surrounding a core, indicated generally by numeral 61, which may include one or more central electrically conductive filaments 62 surrounded by an insulating coating 53 of polypropylene or polyethylene preferably covered by a braided rayon jacket 64 which may, in turn, be coated with nylon plastic 65.
- the core is completed by surrounding it with nine preformed helically wound armor wires 66 and, as in the case of the previous modification, these should be of the opposite lay to the lay of the outer strands 60 which are themselves preferably preformed.
- FIGS. 4 and 5 another type of core member is shown which it has been found is especially resistant to crushing stress.
- this core member may be substituted for the core member shown in FIGS. 1, 2 and 3 to make up a seven strand wire rope whose outer strands are preformed from high tensile steel as in the previous modification shown.
- the electrically conductive wire 67 may be surrounded with a coating of insulating plastic material 68 having a braided synthetic fabric covering 69 surrounded by another synthetic plastic insulating material 70, around which may be wrapped a single helically wound armor wire 71 which is closely spaced as seen in FIG. 5.
- the armor wire 71 is indicated as having a circular cross-section, it will be understood that it might be formed with an elliptical or even a rectangular cross-section as indicated by numerals 72 and 73, in FIGS. 6 and 7. Also, as in FIG. 8, there may be more than one armor wire, such as wires 74 and 75, wound closely together around the insulating material 70. Due to the fact that each complete turn of the armor wires 71, 72, 73, 74 and 75 lies almost in a transverse plane, it offers the greatest amount of resistance to radially inwardly directed forces directed against the other strands.
- this nearly transverse arrangement of the turns means that it is not as important that the lay of the outer strands be opposite to that of the lay of the single armor wire surrounding the core because the resultant of the interacting forces between the armor wire and the wires of the outer strands do not exert any appreciable tendency to unravel the armor wire regardless of the direction of their respective lays.
- a wire towing rope having an electrically conductive core comprising a seven strand cable, the six strands surrounding the core ,strand being preformed of high tensile strength metal wire filaments, the core strand including at least one filament of electrically w 4 conductive metal having low tensile strength compared to the tensile strength of said surrounding strands, a
- non-conductive covering surrounding and embedding are a plurality of closely spaced armor wires wound in a single layer about said non-conductive covering, each turn of said armor wires lying substantially in a transverse plane.
Abstract
A wire rope contains one or more electrically conductive wires running along within a core strand, the conductive wires being surrounded by insulation which is in turn covered by a helically wound closely spaced crush-resistant armor wire.
Description
United States Patent Rhoades et al.
[54] ELECTRICAL CABLE [72] Inventors: Lee A. Rhoades; Manley T. Mallard,
both of Culpeper, Va.
[73] Assignee: The Rochester Corporation, Culpeper, Va.
[22] Filed: March 30, 1970 p [21] App]. No.: 29,312
Related US. Application Data [62] Division of Ser. No. 822,334, Jan. 21, 1969,
Pat. No. 3,560,631, which is a division of Set."
N0. 621,337,,March 7, 1967, Pat. N0. 3,482,034.
52 U.S.Cl ..174/10s,174/115 51 1111.01. ..H01b7/l8 [58] FieldofSearch...l74/107,108, 115,113 R, 102
1451 Aug. 1, 1972 [56] References Cited UNITED STATES PATENTS 2,584,027 1/1952 Kendrick ..174/10s 2,587,521 2/1952 Peterson ..174/10s x 3,106,815 10/1963 Nance ..174/102 x FOREIGN PATENTS 0R APPLICATIONS 15,641 1908 Great Britain ..174/108 Primary Examiner-E. A. Goldberg Attorney-Christen & Sabol [57] ABSTRACT A wire rope contains one or more electrically conductive wires running along within a core strand, the conductive wires being surrounded by insulation which is in turn covered by a helically wound closely spaced crush-resistant armor wire.
4 Claims, 8 Drawing Figures PATENTEU AUG 1 I972 I 3.681. 514
sum 2 OF 2 ELECTRICAL CABLE This application is a division of our copending application, Ser. No. 822,334, filed Jan. 21, 1969 now US. Pat. No. 3,560,631, which is a division of application Ser. No. 621,337, filed Mar. 7, 1967, now US. Pat. No. 3,482,034, for Fishing Net Assembly Including Towing Cable Having A Conductor Included Therein With Break-Out Means For The Conductor And Fish Shocking Cable.
This invention relates to metal cables, and more particularly to preformed wire rope having high tensile strength while at the same time carrying one or more wires having high electrical conductivity.
One object of the invention is to provide a high strength, flexible, wire cable, wherein an electrical conductor or conductors are included in one or more of the strands.
Another object of the invention is to provide a seven strand high strength wire cable wherein the core includes a electrical conductor.
Other objects and advantages will be apparent to those skilled in the art after reading the following specification in connection with the attached drawings, in which:
FIGS. 1, 2 and 3 are cross-sections of three forms of combined electrically conducting and load bearing ropes.
FIG. 4 is a cross-section of core which can be used in the ropes shown in FIGS. 1-3.
FIG. 5 is a side view of a section of the core shown in FIG. 4. And,
FIGS. 6, 7 and 8 are cross-sections of various armor wires used in FIGS. 4 and 5.
Both FIGS. 1 and 2 show cross-sectional arrangements of single conductor towing cables suitable for use as a towing rope, and in this connection it should be noted that the use of the term single conductor is intended to indicate only that a single strand of the rope is utilized for the transmission of electrical energy although there may be more than one electrical wire contained within that single strand. In the form shown in FIG. 1, the cable is a seven strand cable having six outer strands, indicated generally by numerals 39, each of which may comprise seven steel or other high tensile strength metal wires, these six strands being helically wound about a core, indicated generally by numeral 40.
The core is composed of one or more copper, aluminum or other electrically conductive wires 41 which may, or may not, be electrically insulated from each other, in the drawing they are bare wires forming a single conductor. This inner group of conductors may be surrounded with an insulating jacket of polyethylene or polypropylene or other similar material 42 and, in addition, this coating may be surrounded with a jacket of braided rayon 43 which, in turn, may be covered with a coating of nylon 44 with a final armor covering composed of twelve steel or other wear-resistant metal wires 45. In this connection, it should be noted that the lay of the armor wires 45 should be opposite to the lay of the outer strands 39, for example, if the outer strands are preformed with a right-hand lay, the inner wires should be preformed with a left-hand lay. Such an arrangement distributes radial pressures incident to winding in multiple layers on small drums and small diameter shenves.
The form of single conductor cable shown in FIG. 2 differs somewhat from that of FIG. 1 although it still basically comprises a seven strand cable having six outer strands, indicated generally by numerals 46, of high tensile steel or other similar material surrounding a core, indicated generally by numeral 47, which in turn is composed of one or more central electrically conductive filaments 40. In this case the conductors may also be surrounded with a polypropylene or polyethylene coating 49 covered in turn by a rayon braided jacket 50 which itself is coated with a nylon plastic 51. In this case the armor comprises fifteen wires 52 and, as in the case of the previous form of cable, if the outer strands 46 are preformed with a righthand lay the armor wires 52 should be preformed with a left-hand lay.
FIG. 3 discloses another modified form of seven strand cable having an electrically conductive core similar to the cable shown in FIGS. 1 and 2 and in this form the six outer strands of high tensile steel are indicated by numeral 60, surrounding a core, indicated generally by numeral 61, which may include one or more central electrically conductive filaments 62 surrounded by an insulating coating 53 of polypropylene or polyethylene preferably covered by a braided rayon jacket 64 which may, in turn, be coated with nylon plastic 65. In this modification the core is completed by surrounding it with nine preformed helically wound armor wires 66 and, as in the case of the previous modification, these should be of the opposite lay to the lay of the outer strands 60 which are themselves preferably preformed. The advantage of this modified form over those shown in FIGS. 1 and 2 is that with a lesser number of armored wires their diameters may be increased thus increasing the amount of resistance to crushing. The forms of electrically conductive wire rope described above are disclosed and claimed in the parent application, Ser. No. 621,337, filed Mar. 7, 1967, now US. Pat. No. 3,482,034.
In FIGS. 4 and 5 another type of core member is shown which it has been found is especially resistant to crushing stress. In the drawings, only the core member has been shown and it willbe understood that this core member may be substituted for the core member shown in FIGS. 1, 2 and 3 to make up a seven strand wire rope whose outer strands are preformed from high tensile steel as in the previous modification shown. In this type of core the electrically conductive wire 67 may be surrounded with a coating of insulating plastic material 68 having a braided synthetic fabric covering 69 surrounded by another synthetic plastic insulating material 70, around which may be wrapped a single helically wound armor wire 71 which is closely spaced as seen in FIG. 5. While in the figure the armor wire 71 is indicated as having a circular cross-section, it will be understood that it might be formed with an elliptical or even a rectangular cross-section as indicated by numerals 72 and 73, in FIGS. 6 and 7. Also, as in FIG. 8, there may be more than one armor wire, such as wires 74 and 75, wound closely together around the insulating material 70. Due to the fact that each complete turn of the armor wires 71, 72, 73, 74 and 75 lies almost in a transverse plane, it offers the greatest amount of resistance to radially inwardly directed forces directed against the other strands. Also, this nearly transverse arrangement of the turns means that it is not as important that the lay of the outer strands be opposite to that of the lay of the single armor wire surrounding the core because the resultant of the interacting forces between the armor wire and the wires of the outer strands do not exert any appreciable tendency to unravel the armor wire regardless of the direction of their respective lays. Having disclosed several forms inwhich the invention may be practiced, it will be evident to those skilled in the art that various modifications and improvements may be made which would come within the scope of the annexed claims.
I claim:
1. A wire towing rope having an electrically conductive core, comprising a seven strand cable, the six strands surrounding the core ,strand being preformed of high tensile strength metal wire filaments, the core strand including at least one filament of electrically w 4 conductive metal having low tensile strength compared to the tensile strength of said surrounding strands, a
non-conductive covering surrounding and embedding are a plurality of closely spaced armor wires wound in a single layer about said non-conductive covering, each turn of said armor wires lying substantially in a transverse plane.
Claims (4)
1. A wire towing rope having an electrically conductive core, comprising a seven strand cable, the six strands surrounding the core strand being preformed of high tensile strength metal wire filaments, the core strand including at least one filament of electrically conductive metal having low tensile strength compared to the tensile strength of said surrounding strands, a non-conductive covering surrounding and embedding said one filament, and at least one helically wound closely spaced crushing-resistant armor wire surrounding said non-conductive covering to provide an armor covering.
2. The invention as defined in claim 1, wherein the cross-section of said armor wire is elliptical.
3. The invention as defined in claim 1, wherein the cross-section of said armor wire is generally rectangular.
4. The invention as defined in claim 1, wherein there are a plurality of closely spaced armor wires wound in a single layer about said non-conductive covering, each turn of said armor wires lying substantially in a transverse plane.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2931270A | 1970-03-30 | 1970-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3681514A true US3681514A (en) | 1972-08-01 |
Family
ID=21848383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US29312A Expired - Lifetime US3681514A (en) | 1970-03-30 | 1970-03-30 | Electrical cable |
Country Status (1)
Country | Link |
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US (1) | US3681514A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3800066A (en) * | 1972-10-30 | 1974-03-26 | Schlumberger Technology Corp | Gas blocked logging cable |
US6255592B1 (en) | 1998-05-04 | 2001-07-03 | Gamut Technology, Inc. | Flexible armored communication cable and method of manufacture |
US6384337B1 (en) * | 2000-06-23 | 2002-05-07 | Commscope Properties, Llc | Shielded coaxial cable and method of making same |
US20050045364A1 (en) * | 1998-04-06 | 2005-03-03 | Kiyonori Yokoi | Coaxial cables, multicore cables, and electronic apparatuses using such cables |
US20070000682A1 (en) * | 2005-06-30 | 2007-01-04 | Varkey Joseph P | Electrical cables with stranded wire strength members |
US20070044991A1 (en) * | 2005-06-30 | 2007-03-01 | Joseph Varkey | Cables with stranded wire strength members |
US20080156517A1 (en) * | 2005-01-12 | 2008-07-03 | Joseph Varkey | Enhanced Wellbore Electrical Cables |
US20090050346A1 (en) * | 2006-03-09 | 2009-02-26 | Steward Jr Billy J | Coiled wire armored cable |
US20090194296A1 (en) * | 2008-02-01 | 2009-08-06 | Peter Gillan | Extended Length Cable Assembly for a Hydrocarbon Well Application |
US20120097419A1 (en) * | 2010-10-15 | 2012-04-26 | Joseph Varkey | Wireline Cables Not Requiring Seasoning |
US20120171485A1 (en) * | 2010-12-29 | 2012-07-05 | Syscom Advanced Materials, Inc. | Metal and metallized fiber hybrid wire |
US8413723B2 (en) | 2006-01-12 | 2013-04-09 | Schlumberger Technology Corporation | Methods of using enhanced wellbore electrical cables |
US9027657B2 (en) | 2009-09-22 | 2015-05-12 | Schlumberger Technology Corporation | Wireline cable for use with downhole tractor assemblies |
US9412492B2 (en) | 2009-04-17 | 2016-08-09 | Schlumberger Technology Corporation | Torque-balanced, gas-sealed wireline cables |
US10872711B2 (en) * | 2017-08-01 | 2020-12-22 | Sumitomo Electric Industries, Ltd. | Cable having a twisted pair electronic wire and a release layer |
US11387014B2 (en) | 2009-04-17 | 2022-07-12 | Schlumberger Technology Corporation | Torque-balanced, gas-sealed wireline cables |
US11699538B1 (en) * | 2022-04-20 | 2023-07-11 | Aptiv Technologies Limited | High-voltage electrical cable with mixed conductors |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190815641A (en) * | 1908-07-23 | 1909-01-28 | British Insulated & Helsby Cables Ltd | |
US2584027A (en) * | 1949-10-25 | 1952-01-29 | John F Kendrick | Drilling cable with insulated conductor |
US2587521A (en) * | 1945-06-23 | 1952-02-26 | Thomas F Peterson | Cable reinforcing and supporting device |
US3106815A (en) * | 1962-05-07 | 1963-10-15 | Vector Cable Company | Apparatus and method for forming stranded cables |
-
1970
- 1970-03-30 US US29312A patent/US3681514A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190815641A (en) * | 1908-07-23 | 1909-01-28 | British Insulated & Helsby Cables Ltd | |
US2587521A (en) * | 1945-06-23 | 1952-02-26 | Thomas F Peterson | Cable reinforcing and supporting device |
US2584027A (en) * | 1949-10-25 | 1952-01-29 | John F Kendrick | Drilling cable with insulated conductor |
US3106815A (en) * | 1962-05-07 | 1963-10-15 | Vector Cable Company | Apparatus and method for forming stranded cables |
Cited By (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3800066A (en) * | 1972-10-30 | 1974-03-26 | Schlumberger Technology Corp | Gas blocked logging cable |
US20050045364A1 (en) * | 1998-04-06 | 2005-03-03 | Kiyonori Yokoi | Coaxial cables, multicore cables, and electronic apparatuses using such cables |
US6894226B2 (en) | 1998-04-06 | 2005-05-17 | Sumitomo Electric Industries, Ltd. | Coaxial cables, multicore cables, and electronic apparatuses using such cables |
US7034228B2 (en) | 1998-04-06 | 2006-04-25 | Sumitomo Electric Industries, Ltd. | Coaxial cables, multicore cables, and electronic apparatuses using such cables |
US6255592B1 (en) | 1998-05-04 | 2001-07-03 | Gamut Technology, Inc. | Flexible armored communication cable and method of manufacture |
US6384337B1 (en) * | 2000-06-23 | 2002-05-07 | Commscope Properties, Llc | Shielded coaxial cable and method of making same |
US7586042B2 (en) * | 2005-01-12 | 2009-09-08 | Schlumberger Technology Corporation | Enhanced wellbore electrical cables |
US9140115B2 (en) | 2005-01-12 | 2015-09-22 | Schlumberger Technology Corporation | Methods of using enhanced wellbore electrical cables |
US8227697B2 (en) | 2005-01-12 | 2012-07-24 | Schlumberger Technology Corporation | Enhanced wellbore electrical cables |
US20080156517A1 (en) * | 2005-01-12 | 2008-07-03 | Joseph Varkey | Enhanced Wellbore Electrical Cables |
US20100012348A1 (en) * | 2005-01-12 | 2010-01-21 | Joseph Varkey | Enhanced Wellbore Electrical Cables |
US7326854B2 (en) | 2005-06-30 | 2008-02-05 | Schlumberger Technology Corporation | Cables with stranded wire strength members |
US20070044991A1 (en) * | 2005-06-30 | 2007-03-01 | Joseph Varkey | Cables with stranded wire strength members |
US20070000682A1 (en) * | 2005-06-30 | 2007-01-04 | Varkey Joseph P | Electrical cables with stranded wire strength members |
US7462781B2 (en) | 2005-06-30 | 2008-12-09 | Schlumberger Technology Corporation | Electrical cables with stranded wire strength members |
US8807225B2 (en) | 2006-01-12 | 2014-08-19 | Schlumberger Technology Corporation | Methods of using enhanced wellbore electrical cables |
US8413723B2 (en) | 2006-01-12 | 2013-04-09 | Schlumberger Technology Corporation | Methods of using enhanced wellbore electrical cables |
US7705241B2 (en) * | 2006-03-09 | 2010-04-27 | Amphenol Corporation | Coiled wire armored cable |
US20090050346A1 (en) * | 2006-03-09 | 2009-02-26 | Steward Jr Billy J | Coiled wire armored cable |
US8697992B2 (en) | 2008-02-01 | 2014-04-15 | Schlumberger Technology Corporation | Extended length cable assembly for a hydrocarbon well application |
US20090194296A1 (en) * | 2008-02-01 | 2009-08-06 | Peter Gillan | Extended Length Cable Assembly for a Hydrocarbon Well Application |
US11387014B2 (en) | 2009-04-17 | 2022-07-12 | Schlumberger Technology Corporation | Torque-balanced, gas-sealed wireline cables |
US9412492B2 (en) | 2009-04-17 | 2016-08-09 | Schlumberger Technology Corporation | Torque-balanced, gas-sealed wireline cables |
US10605022B2 (en) | 2009-09-22 | 2020-03-31 | Schlumberger Technology Corporation | Wireline cable for use with downhole tractor assemblies |
US10240416B2 (en) | 2009-09-22 | 2019-03-26 | Schlumberger Technology Corporation | Wireline cable for use with downhole tractor assemblies |
US9027657B2 (en) | 2009-09-22 | 2015-05-12 | Schlumberger Technology Corporation | Wireline cable for use with downhole tractor assemblies |
US9677359B2 (en) | 2009-09-22 | 2017-06-13 | Schlumberger Technology Corporation | Wireline cable for use with downhole tractor assemblies |
US9496075B2 (en) | 2010-10-15 | 2016-11-15 | Schlumberger Technology Corporation | Wireline cables not requiring seasoning |
US8901425B2 (en) * | 2010-10-15 | 2014-12-02 | Schlumberger Technology Corporatoon | Wireline cables not requiring seasoning |
US20120097419A1 (en) * | 2010-10-15 | 2012-04-26 | Joseph Varkey | Wireline Cables Not Requiring Seasoning |
US9324472B2 (en) * | 2010-12-29 | 2016-04-26 | Syscom Advanced Materials, Inc. | Metal and metallized fiber hybrid wire |
US20120171485A1 (en) * | 2010-12-29 | 2012-07-05 | Syscom Advanced Materials, Inc. | Metal and metallized fiber hybrid wire |
US10872711B2 (en) * | 2017-08-01 | 2020-12-22 | Sumitomo Electric Industries, Ltd. | Cable having a twisted pair electronic wire and a release layer |
US11600405B2 (en) | 2017-08-01 | 2023-03-07 | Sumitomo Electric Industries, Ltd. | Electronic wire and cable |
US11699538B1 (en) * | 2022-04-20 | 2023-07-11 | Aptiv Technologies Limited | High-voltage electrical cable with mixed conductors |
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