US1723812A - Hollow rope conductor for overhead transmission lines - Google Patents

Hollow rope conductor for overhead transmission lines Download PDF

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Publication number
US1723812A
US1723812A US117889A US11788926A US1723812A US 1723812 A US1723812 A US 1723812A US 117889 A US117889 A US 117889A US 11788926 A US11788926 A US 11788926A US 1723812 A US1723812 A US 1723812A
Authority
US
United States
Prior art keywords
wires
transmission lines
overhead transmission
hollow rope
inner layer
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
US117889A
Other languages
English (en)
Inventor
Schalkau Artur
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.)
Siemens Schuckertwerke AG
Original Assignee
Siemens Schuckertwerke AG
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 Siemens Schuckertwerke AG filed Critical Siemens Schuckertwerke AG
Application granted granted Critical
Publication of US1723812A publication Critical patent/US1723812A/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
    • 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
    • H01B5/107—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 core supporting radial stresses, e.g. a tube, a wire helix

Definitions

  • My invention relates to hollow rope conductors for overhead transmission lines.
  • the object of m invention is to eliminate this drawback. attain this end in view by making the cross-sectional area of the wires of the inner la er larger than the cross-sectional area 0 the wires of the outer layer or layers.
  • an arch is provided in this manner which ,su port's itself and to which the supporting e ement only serves as idle or false framing.
  • the wires of the inner layer are not forced against the su porting member by the longitudinal but-take up the pressure mutually in the manner of the stones in an arch so that any notchi of the wires by the supporting element is entirel eliminated.
  • the wires of t e inner layer are given at least double the crosssection of the wires in the outer layer.
  • the wires of the inner layer are according to my invention made of greater thickness in a radial direction than the wires of the outer layer.
  • the ratio of the thickness of the wires of the inner layer to that of the outer layer is made at least 1.521.
  • An inner layer of wires thus designed is entirelyselfsupporting so that the rope completely maintains its round ,form essential or the avoidance of corona efl'ects and does not lo become distorted like the hitherto employed e combined ten- 117,889, and in Germany February 4, 1928.
  • 1 is t e twisted strip serving as supporting member
  • 2 the wires of the inner .layer which possess double the crox-sectlonal area as the wires 3 of the outer layer and the radial thickness of which amounts to 1.5 times the. thickness of the outer wires.
  • all the wires are designed as sec- 4 torial elements of a cylinder. It will be understood that more than two layers of wires may be employed.
  • ch es may be made without departing from t e ulcer and the scope of my invention, and def sire, therefore, that only such limitations shall be placed thereon as are imposed by the prior art.
  • a hollow rope conductor for electric overhead transmission lines comprising an internal shape defining member and a plurality of layers of sector-shaped line wires stranded ove'r said internal member, the cross-sectional area of the wires in the inner layer being larger than the cross-sectional area of the wires in the outer layers, to permit the inner layer to form a strong archlike sup rt for the outer layers.
  • 2A ollow rope conductor for electric overhead transmission lines comprising an internal shape defining member and a'plurality of layersof sector-shaped-line wires v internal shape-defining member and'a plu- 'rality of layers of sector-shaped line wires 10 permit'the inner layer to form a strongarch-like support forthe outer layers.
  • a hollow rope conductor for electric overhead transmission lines comprising an internal shape-defining member and a plurality of layers. of sector-shaped line wires stranded over said internal member thecro'ss-sectional area of the wires in the inner layer being at least double the size of the cross-sectional area of the wires in theouter layer and the thickness ofthe wires of the 20 inner layer to that of the wires of theouter layers being at least in the ratio of 1.5: 1, to permit the inner layer to form a'strfong arch-like support for the outer layers.

Landscapes

  • Ropes Or Cables (AREA)
  • Communication Cables (AREA)
US117889A 1926-02-05 1926-06-22 Hollow rope conductor for overhead transmission lines Expired - Lifetime US1723812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES73170D DE442139C (de) 1926-02-05 1926-02-05 Hohlseil fuer elektrische Freileitungen

Publications (1)

Publication Number Publication Date
US1723812A true US1723812A (en) 1929-08-06

Family

ID=32729215

Family Applications (1)

Application Number Title Priority Date Filing Date
US117889A Expired - Lifetime US1723812A (en) 1926-02-05 1926-06-22 Hollow rope conductor for overhead transmission lines

Country Status (6)

Country Link
US (1) US1723812A (sv)
BE (1) BE335685A (sv)
CH (1) CH120916A (sv)
DE (1) DE442139C (sv)
FR (1) FR619537A (sv)
GB (1) GB265544A (sv)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32293E (en) * 1977-05-13 1986-11-25 Bicc Limited Overhead electric transmission systems

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2329769A (en) * 1997-09-24 1999-03-31 Ceramaspeed Ltd Electric heater control
DE10065716B4 (de) * 2000-12-29 2004-03-04 Berndorf F.A.S. Ges.m.b.H. & Co. KG Freileitungsseil für Hochspannungsfreileitungen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE32293E (en) * 1977-05-13 1986-11-25 Bicc Limited Overhead electric transmission systems
USRE32374E (en) * 1977-05-13 1987-03-17 Bicc Public Limited Company Overhead electric and optical transmission cables

Also Published As

Publication number Publication date
FR619537A (fr) 1927-04-04
DE442139C (de) 1927-03-22
GB265544A (en) 1927-03-17
BE335685A (sv)
CH120916A (de) 1927-08-16

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