US3842192A - Dual insulated magnet wire - Google Patents

Dual insulated magnet wire Download PDF

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Publication number
US3842192A
US3842192A US00361121A US36112173A US3842192A US 3842192 A US3842192 A US 3842192A US 00361121 A US00361121 A US 00361121A US 36112173 A US36112173 A US 36112173A US 3842192 A US3842192 A US 3842192A
Authority
US
United States
Prior art keywords
conductor
magnet wire
strip
wire
base insulation
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
Application number
US00361121A
Other languages
English (en)
Inventor
V Lausen
H Mowery
G Hilker
C Doehrman
M Sutton
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.)
Phelps Dodge Industries Inc
Original Assignee
Phelps Dodge Industries 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 Phelps Dodge Industries Inc filed Critical Phelps Dodge Industries Inc
Priority to US00361121A priority Critical patent/US3842192A/en
Priority to NL7405895A priority patent/NL7405895A/xx
Priority to GB1922374A priority patent/GB1437668A/en
Priority to CA199,411A priority patent/CA1015418A/en
Priority to BE6044591A priority patent/BE815032A/xx
Priority to ES426294A priority patent/ES426294A1/es
Priority to LU70081A priority patent/LU70081A1/xx
Priority to IT12785/74A priority patent/IT1013794B/it
Priority to AT402974A priority patent/AT334993B/de
Priority to DE2423602A priority patent/DE2423602C2/de
Priority to FR7417760A priority patent/FR2293772A1/fr
Priority to CH673174A priority patent/CH598683A5/xx
Priority to YU01373/74A priority patent/YU137374A/xx
Application granted granted Critical
Publication of US3842192A publication Critical patent/US3842192A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01B7/02—Disposition of insulation
    • H01B7/0258—Disposition of insulation comprising one or more longitudinal lapped layers of insulation
    • 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

Definitions

  • This invention relates to a magnet wire, and more particularly, to a dual coated magnet wire in which the base insulation is a strip of wire insulating material extending longitudinally of the conductor and wrapped on the conductor.
  • Magnet wires having a base insulation overcoated with a top coat of a material different from the base insulation material have long been commercially available.
  • such magnet wire has been manufactured in a continuous process by applying several coats of base insulation material, baking each coat as it is applied, and applying a top coat or several top coats over the base insulation material, again baking each coat separately. This is normally achieved utilizing conventional wire coating machines and crossstringing the ovens. In such a process, the baking conditions of the base insulation and the top coat must be compatible or essentially the same or different baking chambers must be used.
  • Cables and the like have been wrapped with an elongated strip of material, usually paper and/or a metal shield, and covered by an extruded jacket of resinous material.
  • this art is only remotely related to the production of magnet wire.
  • magnet wire has in the past been insulated by wrapping the conductor with a strip of insulating material. Both helically wound insulating and longitudinally wrapped insulation have hereintofore been disclosed.
  • magnet wires insulated by wrapping strip material about the conductor have in general had the physical and electrical properties of the strip material. Overcoating the wrapped conductor has heretofore not been thought to be advantageous.
  • a dual coated insulated magnet wire having a base insulation of an elongated strip of insulating material wrapped on the conductor, an adhesive to secure the wrapped material at the seam, and a top coat of resin material superimposed on the base insulation.
  • a magnet wire has been found not only to be advantageous inasmuch as the thermal properties are better than suspected; but the magnet wire may also have improved slip and abrasion resistance, moisture resistance, and electrical insulation resistance, imparted by the resinous top coat. It is also desirable to utilize a top coat of a heat-softenable resinous material which would permit bonding adjacent turns of wire in a winding together and negate the need of an impregnating varnish.
  • Another object of this invention is to provide an improved magnet wire having an insulation of an elongated strip or strips of wire insulating material extending longitudinally of the conductor and wrapped about the conductor.
  • Another object of this invention is to provide an improved dual coated magnet wire having a base insulation of an elongated strip of wire insulating material extending longitudinally of the conductor and wrapped about the conductor, adhesively sealed at the seam, and a top coat of resinous material superimposed on the base insulation.
  • Another object of this invention is to provide an improved dual coated magnet wire having a top coat of heat-softenable resinous material permitting the bonding of adjacent turns of wire in a winding and negating the need of impregnating varnishes.
  • a further object of this invention is to provide an improved magnet wire of the type having an insulation of an elongated strip of wire insulating material extending longitudinally of the conductor and wrapped about the conductor which has improved thermal properties, improved slip and abrasion resistance, moisture resistance, and improved electrical properties.
  • a dual coated magnet wire having a base insulation of an elongated strip of wire insulating material extending longitudinally of the conductor and wrapped about the conductor and a top coat of resinous material superimposed on the base insulation.
  • FIG. 1 is a fragmentary perspective view of the magnet wire of the invention
  • FIG. 2 is a cross-sectional view of the magnet wire of the invention having a conductor of a circular crosssection, a base insulation of an elongated strip of wire insulating material with a width dimension slightly in excess of the circumference of the conductor;
  • FIG. 3 is a cross-sectional view of the magnet wire of the invention having a conductor with a circular crosssection and a base insulation of an elongated strip of wire insulating material having a width approximately twice the circumference of the conductor;
  • FIG. 4 is a crosssectional view of the magnet wire of the invention having a conductor with a rectangular cross-sectional shape (although this may also be a square shape) and a base insulation of an elongated strip of wire insulating material with a width substantially equal to three times the sum of the height and width dimensions of the conductor.
  • the magnet wire of the invention comprises a conductor 10 and a base insulation 12 of an elongated strip of wire insulating material, a seam adhesive 13, and a top coat 14 of a resinous material superimposed on the base insulation 12.
  • the conductor 10 may be either a round conductor I6 having a cross-section taken transversely thereof which is circular in shape, or a rectangular or square conductor 18 having a cross-section taken transversely thereof which is either rectangular or square in shape.
  • rectangular is use herein to include both rectangular and square shapes. Round and rectangular conductors are used commercially. Also, conductors 16 and 18 are usually either of copper or aluminum; however, nothing herein is intended to limit the disclosure to these metals.
  • the base insulation 12 comprises an elongated strip of wire insulating material which extends longitudinally of the conductor and is wrapped around the conductor.
  • Each strip has a width dimension which is slightly larger than the circumferential dimension of a round conductor or the equivalent dimension of a conductor having a rectangular cross-section, such that the longitudinally extending peripheral portions thereof adjacent to the opposite edges of the strip overlap to provide a means of bonding the material to itself.
  • a strip 24 is shown having a width dimension slightly in excess of the circumferential diameter of the conductor 16 wrapped around the conductor so as to have peripheral portion 26 adjacent to edge overlaying the peripheral portion 28 adjacent to edge 22.
  • These elongated lapped portions 26, 28, extend longitudinally of the conductor, and the seam adhesive 13 is positioned therebetween. Both the lapped portions 26, 28 and the adhesive 13 extend the entire length of the insulation.
  • Strip 30 having a width approximately twice the circumference of the conductor 16.
  • Strip 30 also has longitudinally extending peripheral edges 20, 22 and lapped portions 26, 28.
  • the entire conductor is covered with at least two layers of strip 30 in contrast to the single layer of strip 24, as previously described.
  • FIG. 4 illustrates a conductor having a rectangular cross-section in which the base insulation comprises a strip 32 having a width dimension which is about one and one-half times the distance around the conductor, or about three times the sum of the width and the height of the conductor 18.
  • strip 32 has longitudinally extending edges 20 and 22 and overlapping portions 26, 28.
  • a feature of the rectangular conductor shown in FIG. 4 not possessed by the circular conductor shown in FIGS. 2 and 3 is the fact that the overlapping portions 26 and 28 overlap over one width and one length dimension of the conductor 18.
  • the base insulation 12 of the magnet wire illustrated in FIG. 4 comprises a single thickness of strip 32 on two sides of the conductor and a double thickness of strip 32 on the remaining two sides of the conductor.
  • top coat 14 is superimposed over the base insulation 12 and completely surrounds the base insulation and is coincident therewith. It can be seen by the drawings, that none of the adhesive 13 is positioned between the base insulation and the conductor. Such is preferred inasmuch as either may cause bonding of the base insulation to the conductor and result in a magnet wire insulation which cannot be easily stripped, when desired.
  • the wire insulating material of the base insulation 12, 24, 30 and 32 can be chosen from a wide variety of materials.
  • magnet wires having insulation of wrapped strip material has generally been limited to those materials which cannot be applied by the more usual method, i.e., from solution, using conventional wire coating machines.
  • These materials have included various types of paper, polyimides such as Nomex" strip material as sold by the Dupont Company, and Kapton strip material as sold by Dupont Company.
  • Other materials which can be applied as strip material in accordance with the invention include asbestos, woven fabrics, such as of glass fiber, and non-woven strands of fiberous materials.
  • the use of many of these sheet materials for wire insulation has been limited heretofore inasmuch as it was thought that the thermal properties of such magnet wire could be no better than the thermal properties of the adhesive with which the insulation was secured to the conductor.
  • sheet wire insulating material having extremely good electrical properties were not used if the adhesives necessary to adhere the same to wires had poor thermal properties.
  • a magnet wire made in accordance with the invention does not have this limitation and thus these wire insulating materials have now become useful.
  • the seam adhesive 13 can be any of a large family of commercially available as well as proprietary bonding agents.
  • the resinous material of the top coat 14 can be any number of resinous materials. Any of the available resinous materials including polyesters, polyamides, including NYLON polyamides, polyimides, polyamide imides, epoxys, phenoxys, polyvinyl formal, polyvinyl butyrals, polycarbonates, polypropylene, and the like can be used. The use of each of these resinous materials will impart to the magnet wire the slip and abrasion resistance associated with a wire coated with that resinous material. By choosing a resinous material having better slip and abrasion resistance than the insulating material of the base insulation, these properties of the magnet wire can be enhanced over prior art magnet wires having wrapped insulations.
  • the moisture resistance and the electrical insulating characteristics of the base insulation 12 are both enhanced. Additionally, if the resinous material of the top coat is a resinous material of the group which can be softened by heating the material above a softening temperature such as thermoplastic materials and certain polyimides and resinous materials which can be softened at elevated temperatures but technically are not thermoplastic resins, completely surprising results occur. It has been found that with the magnet wire of the invention, when the resinous material of the top coat 14 is a heat-softenable material, the magnet wire can withstand temperature excursions to well above the softening temperature of the resinous material without the base insulation becoming unwrapped or otherwise failing.
  • the magnet wire of the invention as illustrated in FIG. 2 was fabricated by longitudinally wrapping a conductor with a strip of paper such as 32-H-C or 32-H-CC Insulflex" crepe paper as sold by Dennison Paper Company or Copaco" paper as sold by Cottrell Paper Company, Inc. and overcoating the same with a thermoplastic polyester having a softening temperature from about 425F to 475F, that magnet wire can withstand temperatures from about 600F to about 700F under which conditions the paper actually chars without the paper unwrapping from the conductor.
  • a similar phenomenon is experienced when other resins are used as the resinous material of the top coat l4 and other insulating materials are used as the base insulation 12 in accordance with the invention.
  • a dual coated magnet wire having surprising thermal characteristics, improved abrasion resistance and slip properties, improved moisture resistance, and improved electrical insulating value comprising an elongated magnet wire conductor, an elongated strip of insulating material, said strip extending longitudinally of said conductor and being tightly wrapped around said conductor to overlap longitudinally extending portions of said strip adjacent the opposite peripheral edges thereof and to exclude air therefrom thereby forming a base insulation, an adhesive only between said overlapped portions, and a layer of resinous material superimposed on said base insulation forming an overcoat thereon, said insulated conductor being able to withstand temperatures in windings for short times greatly in excess of the temperature at which said resin material loses its strength without said strip unwrapping.
  • wire insulating material is sheet material having the desired insulating characteristics chosen from the group consisting of rope, kraft, or rag papers; polyimide, polyamide, and polyester film materials, asbestos sheet materials; fiberglass and combinations of glass and mica and asbestos cloth and mat materials.
  • the magnet wire of claim 1 wherein said resin is chosen from the group of polyester, polyimide, polyamide imides, epoxy, phenoxy, polypropylene, polycarbonates, and other film-forming resinous materials.
  • said wire insulating material is a paper material which chars at temperatures from about 600F to about 700F, said resin has a melting temperature from about 425F to about 536F, said base insulation withstanding charring temperatures without unwrapping from said conductor.

Landscapes

  • Insulated Conductors (AREA)
  • Insulating Of Coils (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Organic Insulating Materials (AREA)
US00361121A 1973-05-17 1973-05-17 Dual insulated magnet wire Expired - Lifetime US3842192A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US00361121A US3842192A (en) 1973-05-17 1973-05-17 Dual insulated magnet wire
NL7405895A NL7405895A (de) 1973-05-17 1974-05-02
GB1922374A GB1437668A (en) 1973-05-17 1974-05-02 Coated magnet wire
CA199,411A CA1015418A (en) 1973-05-17 1974-05-09 Dual coated magnet wire
ES426294A ES426294A1 (es) 1973-05-17 1974-05-14 Hilo de doble revestimiento para electroimanes.
BE6044591A BE815032A (fr) 1973-05-17 1974-05-14 Fil pour aimants a revetement double
LU70081A LU70081A1 (de) 1973-05-17 1974-05-15
IT12785/74A IT1013794B (it) 1973-05-17 1974-05-15 Filo a duplice rivestimento isolan te per avvolgimenti di magneti o simili
AT402974A AT334993B (de) 1973-05-17 1974-05-15 Magnetwicklungsdraht
DE2423602A DE2423602C2 (de) 1973-05-17 1974-05-15 Spulenwickeldraht
FR7417760A FR2293772A1 (fr) 1973-05-17 1974-05-16 Fil pour aimants a revetement double
CH673174A CH598683A5 (de) 1973-05-17 1974-05-16
YU01373/74A YU137374A (en) 1973-05-17 1974-05-17 Wire for coil windings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00361121A US3842192A (en) 1973-05-17 1973-05-17 Dual insulated magnet wire

Publications (1)

Publication Number Publication Date
US3842192A true US3842192A (en) 1974-10-15

Family

ID=23420733

Family Applications (1)

Application Number Title Priority Date Filing Date
US00361121A Expired - Lifetime US3842192A (en) 1973-05-17 1973-05-17 Dual insulated magnet wire

Country Status (13)

Country Link
US (1) US3842192A (de)
AT (1) AT334993B (de)
BE (1) BE815032A (de)
CA (1) CA1015418A (de)
CH (1) CH598683A5 (de)
DE (1) DE2423602C2 (de)
ES (1) ES426294A1 (de)
FR (1) FR2293772A1 (de)
GB (1) GB1437668A (de)
IT (1) IT1013794B (de)
LU (1) LU70081A1 (de)
NL (1) NL7405895A (de)
YU (1) YU137374A (de)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020375A (en) * 1973-06-15 1977-04-26 Essex International, Inc. Dynamoelectric machine coil
US4143238A (en) * 1977-02-28 1979-03-06 Belden Corporation Shielded ultra-miniature cable
US4216263A (en) * 1979-05-04 1980-08-05 Rea Magnet Wire Co., Inc. Magnet wire
EP0040034A1 (de) * 1980-05-08 1981-11-18 BICC Limited Isolierte Drähte und elektrische Kabel
US4439914A (en) * 1982-03-24 1984-04-03 Westinghouse Electric Corp. Adhesive oil resistant insulated wire consisting of two layers including an uncatalyzed epoxy-phenoxy resin outer layer
US4650924A (en) * 1984-07-24 1987-03-17 Phelps Dodge Industries, Inc. Ribbon cable, method and apparatus, and electromagnetic device
US4658090A (en) * 1984-07-24 1987-04-14 Phelps Dodge Industries, Inc. Ribbon cable, a transposed ribbon cable, and a method and apparatus for manufacturing transposed ribbon cable
US4793409A (en) * 1987-06-18 1988-12-27 Ors Development Corporation Method and apparatus for forming an insulated oil well casing
US5105057A (en) * 1991-05-20 1992-04-14 Weinberg Martin J Insulated magnet wire and method of forming the same
EP1195774A1 (de) * 2000-10-03 2002-04-10 The Furukawa Electric Co., Ltd. Isolationsbeschichteter elektrischer Leiter
US20060097586A1 (en) * 2002-11-01 2006-05-11 Won-Hyun Jung Winding coil assembly of reciprocating motor and manufacturing method thereof
US20110067898A1 (en) * 2008-12-03 2011-03-24 Christian Koelblin curable composition for medium and high voltage power cables
WO2013048356A3 (en) * 2011-09-30 2013-06-27 Ertem Orkun Magnets and manufacturing methods thereof
US8684679B2 (en) 2012-05-22 2014-04-01 Summit Esp, Llc Abrasion resistance in well fluid wetted assemblies
US20140105769A1 (en) * 2012-10-12 2014-04-17 Gap-Dong KIM Method for fabricating electric wire for winding of super-high heat-resistant motor pump, electric wire fabricated by the method, and motor pump having the electric wire
US9046354B2 (en) 2013-02-27 2015-06-02 Summit Esp, Llc Apparatus, system and method for measuring straightness of components of rotating assemblies
US20150170796A1 (en) * 2012-09-10 2015-06-18 Yazaki Corporation Wire harness
US9472987B1 (en) 2013-08-05 2016-10-18 Summit Esp, Llc Induction motor stator windings
US20160380494A1 (en) * 2012-10-12 2016-12-29 Gap-Dong KIM Method for fabricating a stator unit for a super-high heat-resistant motor pump and a stator unit fabricated by the method
US20170004900A1 (en) * 2014-03-14 2017-01-05 Furukawa Electric Co., Ltd. Insulated wire, method of producing the insulated wire, method of producing a stator for a rotating electrical machine, and rotating electrical machine
US9800110B2 (en) 2012-04-20 2017-10-24 Summit Esp, Llc System and method for enhanced magnet wire insulation
US11145436B2 (en) * 2018-03-12 2021-10-12 Essex Furukawa Magnet Wire Japan Col, Ltd. Assembled wire, method of manufacturing assembled wire and segment coil

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552988A (en) * 1984-03-12 1985-11-12 Westinghouse Electric Corp. Strippable insulated wire and method of making same
DE19750064A1 (de) * 1997-11-12 1999-05-20 Cit Alcatel Mehrfachparallelleiter für Wicklungen elektrischer Geräte und Maschinen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1944870A (en) * 1930-11-03 1934-01-30 Herbert F Apple Apparatus for making an electrical coil
US3239598A (en) * 1961-04-04 1966-03-08 Anaconda Wire & Cable Co Polyvinyl acetal resin together with an epoxy resin and a resin selected from urea formaldehyde, melamine, and phenol formaldehyde coated on an insulated wire and method for producing the same
US3412354A (en) * 1963-02-18 1968-11-19 Westinghouse Electric Corp Adhesive coated electrical conductors
US3528852A (en) * 1965-10-27 1970-09-15 Anaconda Wire & Cable Co Dual-coated electrical conductor
US3621119A (en) * 1967-10-04 1971-11-16 Hitachi Cable Insulated conductor for communication cable
US3676814A (en) * 1970-02-06 1972-07-11 Westinghouse Electric Corp High temperature adhesive overcoat for magnet wire

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH66588A (de) * 1913-09-27 1914-09-16 Siemens Schuckertwerke Gmbh Verfahren zum Isolieren elektrischer Leiter mit streifenförmigem Isoliermaterial
US3087007A (en) * 1960-02-04 1963-04-23 Gen Cable Corp Electric cable and method of manufacture
US3745138A (en) * 1968-08-14 1973-07-10 Phelps Dodge Magnet Wire Corp Bonding composition containing a blocked isocyanate
US3822147A (en) * 1972-05-05 1974-07-02 Phelps Dodge Magnet Wire Co Insulated electrical conductor and coils formed thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1944870A (en) * 1930-11-03 1934-01-30 Herbert F Apple Apparatus for making an electrical coil
US3239598A (en) * 1961-04-04 1966-03-08 Anaconda Wire & Cable Co Polyvinyl acetal resin together with an epoxy resin and a resin selected from urea formaldehyde, melamine, and phenol formaldehyde coated on an insulated wire and method for producing the same
US3412354A (en) * 1963-02-18 1968-11-19 Westinghouse Electric Corp Adhesive coated electrical conductors
US3528852A (en) * 1965-10-27 1970-09-15 Anaconda Wire & Cable Co Dual-coated electrical conductor
US3621119A (en) * 1967-10-04 1971-11-16 Hitachi Cable Insulated conductor for communication cable
US3676814A (en) * 1970-02-06 1972-07-11 Westinghouse Electric Corp High temperature adhesive overcoat for magnet wire

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Dummer et. al. Wires & R. F. Cables, Pitman, London, 1968, p. 21 & 25. *

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020375A (en) * 1973-06-15 1977-04-26 Essex International, Inc. Dynamoelectric machine coil
US4143238A (en) * 1977-02-28 1979-03-06 Belden Corporation Shielded ultra-miniature cable
US4216263A (en) * 1979-05-04 1980-08-05 Rea Magnet Wire Co., Inc. Magnet wire
EP0040034A1 (de) * 1980-05-08 1981-11-18 BICC Limited Isolierte Drähte und elektrische Kabel
US4439914A (en) * 1982-03-24 1984-04-03 Westinghouse Electric Corp. Adhesive oil resistant insulated wire consisting of two layers including an uncatalyzed epoxy-phenoxy resin outer layer
US4650924A (en) * 1984-07-24 1987-03-17 Phelps Dodge Industries, Inc. Ribbon cable, method and apparatus, and electromagnetic device
US4658090A (en) * 1984-07-24 1987-04-14 Phelps Dodge Industries, Inc. Ribbon cable, a transposed ribbon cable, and a method and apparatus for manufacturing transposed ribbon cable
US4793409A (en) * 1987-06-18 1988-12-27 Ors Development Corporation Method and apparatus for forming an insulated oil well casing
US5105057A (en) * 1991-05-20 1992-04-14 Weinberg Martin J Insulated magnet wire and method of forming the same
US20070209826A1 (en) * 2000-10-03 2007-09-13 Masakazu Mesaki Insulation-coated electric conductor
US20020062983A1 (en) * 2000-10-03 2002-05-30 Masakazu Mesaki Insulation-coated electric conductor
US20050211462A1 (en) * 2000-10-03 2005-09-29 Masakazu Mesaki Insulation-coated electric conductor
US20070012471A1 (en) * 2000-10-03 2007-01-18 Masakazu Mesaki Insulation-coated electric conductor
EP1195774A1 (de) * 2000-10-03 2002-04-10 The Furukawa Electric Co., Ltd. Isolationsbeschichteter elektrischer Leiter
US20060097586A1 (en) * 2002-11-01 2006-05-11 Won-Hyun Jung Winding coil assembly of reciprocating motor and manufacturing method thereof
US7294941B2 (en) * 2002-11-01 2007-11-13 Lg Electronics Inc. Winding coil assembly of reciprocating motor and manufacturing method thereof
US8581102B2 (en) * 2008-12-03 2013-11-12 Nexans Curable composition for medium and high voltage power cables
US20110067898A1 (en) * 2008-12-03 2011-03-24 Christian Koelblin curable composition for medium and high voltage power cables
WO2013048356A3 (en) * 2011-09-30 2013-06-27 Ertem Orkun Magnets and manufacturing methods thereof
US9800110B2 (en) 2012-04-20 2017-10-24 Summit Esp, Llc System and method for enhanced magnet wire insulation
US8684679B2 (en) 2012-05-22 2014-04-01 Summit Esp, Llc Abrasion resistance in well fluid wetted assemblies
US20150170796A1 (en) * 2012-09-10 2015-06-18 Yazaki Corporation Wire harness
US9947439B2 (en) * 2012-09-10 2018-04-17 Yazaki Corporation Dark exterior wire harness with heat-reflection and identification portion
US20140105769A1 (en) * 2012-10-12 2014-04-17 Gap-Dong KIM Method for fabricating electric wire for winding of super-high heat-resistant motor pump, electric wire fabricated by the method, and motor pump having the electric wire
US20160380494A1 (en) * 2012-10-12 2016-12-29 Gap-Dong KIM Method for fabricating a stator unit for a super-high heat-resistant motor pump and a stator unit fabricated by the method
US9046354B2 (en) 2013-02-27 2015-06-02 Summit Esp, Llc Apparatus, system and method for measuring straightness of components of rotating assemblies
US9472987B1 (en) 2013-08-05 2016-10-18 Summit Esp, Llc Induction motor stator windings
US20170004900A1 (en) * 2014-03-14 2017-01-05 Furukawa Electric Co., Ltd. Insulated wire, method of producing the insulated wire, method of producing a stator for a rotating electrical machine, and rotating electrical machine
US11145436B2 (en) * 2018-03-12 2021-10-12 Essex Furukawa Magnet Wire Japan Col, Ltd. Assembled wire, method of manufacturing assembled wire and segment coil

Also Published As

Publication number Publication date
FR2293772B1 (de) 1980-10-31
CA1015418A (en) 1977-08-09
YU137374A (en) 1982-05-31
BE815032A (fr) 1974-09-02
IT1013794B (it) 1977-03-30
CH598683A5 (de) 1978-05-12
ES426294A1 (es) 1976-10-01
DE2423602C2 (de) 1982-12-23
GB1437668A (en) 1976-06-03
AT334993B (de) 1977-02-10
NL7405895A (de) 1974-11-19
DE2423602A1 (de) 1974-12-05
FR2293772A1 (fr) 1976-07-02
ATA402974A (de) 1976-06-15
LU70081A1 (de) 1974-10-01

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