EP0041483A1 - Conducteur électrique, revêtu de colle et recouvert d'un ruban isolant - Google Patents

Conducteur électrique, revêtu de colle et recouvert d'un ruban isolant Download PDF

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Publication number
EP0041483A1
EP0041483A1 EP81830073A EP81830073A EP0041483A1 EP 0041483 A1 EP0041483 A1 EP 0041483A1 EP 81830073 A EP81830073 A EP 81830073A EP 81830073 A EP81830073 A EP 81830073A EP 0041483 A1 EP0041483 A1 EP 0041483A1
Authority
EP
European Patent Office
Prior art keywords
conductor according
adhesive
conductor
insulating tape
covered
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP81830073A
Other languages
German (de)
English (en)
Inventor
Paolo Zanettin
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.)
CAVIRIVEST Srl
Original Assignee
CAVIRIVEST Srl
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 CAVIRIVEST Srl filed Critical CAVIRIVEST Srl
Publication of EP0041483A1 publication Critical patent/EP0041483A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H01B7/0208—Cables with several layers of insulating material

Definitions

  • the present invention concerns an electric wire used in the manufacture of windings for motors, generators, transformers, inductors, etc., coated with an adhesive, around which an electric tape is wound.
  • Insulating conductors are already known, upon which the tape or the insulating tapes are applied by means of a simple winding upon the bare wire.
  • the conductor, object of the present invention overcome the inconveniences of the pertinent known technique, it allows an increase of the production and improves the quality of the finished goods.
  • the electric conductor object of the present invention is coated with an adhesive and it is covered on the coating so obtained with insulating tape wound spirally with partially superimposed edges.
  • Conductors of this type may have circular or polygonal section and, in particular, they may be made of aluminium, copper or other metals.
  • the conductors with circular section have generally sections between 0,8 and 10 mm 2
  • the conductors with polygonal section have sections between 3 and 2 00 mm 2 .
  • the insulating tapes made of paper may consist of cellulose paper or synthetic organic material or mixed material, that is, cellulose with addition of synthetic organic material.
  • the Nomex type an aromatic polyamide (Du Pont trade-mark°) is preferred; among the materials of the mixed type, the Tecwrap (Tecnoconvert trade-mark) is preferred.
  • the tapes have thickness between 5 and 100 microns and up to 60 superimposed tapes can be applied.
  • the adhesive used to this purpose must stand the contact with mineral oil up to 130°C or, if used under dry conditions, up to 250°C, without inconveniences.
  • the insulation characteristics of the conductor of the present invention are superior to the characteristics, which can be obtained with a tape merely wound (without adhesive); indeed, for example, the insulation of a conductor having only one tape stuck on itself is about the same as that of an insulated conductor having two insulating tapes merely wound on itself.

Landscapes

  • Organic Insulating Materials (AREA)
  • Adhesives Or Adhesive Processes (AREA)
EP81830073A 1980-05-19 1981-05-13 Conducteur électrique, revêtu de colle et recouvert d'un ruban isolant Withdrawn EP0041483A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22172/80A IT1130614B (it) 1980-05-19 1980-05-19 Conduttore elettrico rivestito con collante ed avvolto con nastro isolante
IT2217280 1980-05-19

Publications (1)

Publication Number Publication Date
EP0041483A1 true EP0041483A1 (fr) 1981-12-09

Family

ID=11192563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81830073A Withdrawn EP0041483A1 (fr) 1980-05-19 1981-05-13 Conducteur électrique, revêtu de colle et recouvert d'un ruban isolant

Country Status (2)

Country Link
EP (1) EP0041483A1 (fr)
IT (1) IT1130614B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0222291A2 (fr) * 1985-11-08 1987-05-20 PIRELLI CAVI S.p.A. Ruban composite pour l'isolation de câbles électriques et câble électrique utilisant ledit ruban dans son isolation
CN103280263A (zh) * 2013-05-25 2013-09-04 南通明光电线有限公司 变压器及电机用新型耐高温纸包线

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621119A (en) * 1967-10-04 1971-11-16 Hitachi Cable Insulated conductor for communication cable

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621119A (en) * 1967-10-04 1971-11-16 Hitachi Cable Insulated conductor for communication cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0222291A2 (fr) * 1985-11-08 1987-05-20 PIRELLI CAVI S.p.A. Ruban composite pour l'isolation de câbles électriques et câble électrique utilisant ledit ruban dans son isolation
EP0222291A3 (en) * 1985-11-08 1989-03-08 Societa' Cavi Pirelli S.P.A. Composite tape for the insulation of electric cables and electric cable using said tape in its insulation
CN103280263A (zh) * 2013-05-25 2013-09-04 南通明光电线有限公司 变压器及电机用新型耐高温纸包线

Also Published As

Publication number Publication date
IT8022172A0 (it) 1980-05-19
IT1130614B (it) 1986-06-18

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19820721

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ZANETTIN, PAOLO