US1697541A - Armoring of single-conductor electric power cables - Google Patents

Armoring of single-conductor electric power cables Download PDF

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Publication number
US1697541A
US1697541A US145588A US14558826A US1697541A US 1697541 A US1697541 A US 1697541A US 145588 A US145588 A US 145588A US 14558826 A US14558826 A US 14558826A US 1697541 A US1697541 A US 1697541A
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US
United States
Prior art keywords
armoring
losses
wires
electric power
power cables
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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
US145588A
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English (en)
Inventor
Schurer Eugen
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.)
Felten and Guilleaume Carlswerk AG
Original Assignee
Felten and Guilleaume Carlswerk 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
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Application filed by Felten and Guilleaume Carlswerk AG filed Critical Felten and Guilleaume Carlswerk AG
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Publication of US1697541A publication Critical patent/US1697541A/en
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    • 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
    • H01B7/26—Reduction of losses in sheaths or armouring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/26—Construction of guiding-sheathings or guiding-tubes

Definitions

  • EUGEliT SCHIIRER OF COLOGNE-MULHEIM, GERMANY, ASSIGNOR T FELTEN & GUIL LEAU'ME GABLSWERK ACTIEN-GESELLSCHAFT, 0F COLOGNE-MULHEIM, GERMANY.
  • the gaps between the wires may be filled with anynon-magnetizable material, for instance with an insulating material or with zinc, with which the armoring wires are frequently coated as a protection against rustin IVith the same object the pitches may be increased at the expense of the strength of thc armoring.
  • the present invention provides means which, when used in combination with other precautions referred to above (great, pitch, open armoring) keeps down the losses so as to be sufficiently small, even when ferromagnetic materials are used.
  • the invention lays down a principle, according to which the ferromagnetic materials suitable for the armoring of a single conductor cable may be determined.
  • Non-hardenable material Iron with le tha .2
  • steels containing more than 0.9% carbon are already unsuitable for being made into wire, so that the best results are to be obtained Sgt; steel wire having a carbon content of The measurements given above were carrled out with an alternating currenthaving a periodicity of 50 and of 100 to 250 amperes.
  • Figs. land 2 show a constructional form 0? an armored single conductor alternating current cable according t the present invention longitudinal and transverse section, in which a is the copper conductor built up of single wires, 6 an insulating layer of paper, 0 the lead cover, (1 a layer of padding material, for instance jute, e the armoring wires consisting of a material having a high coercive force, which are kept at a suitable distance apart by paper cords f.
  • f wires or cords made of some other non-magnetic material may be .used, or the spaces between the wires may be left vacant.- In cases, where higher armoring losses may be allowed, the armoring of steel .wires may be made with the wires in contact with one another. Over the armoring a layer of padding material 9, for instance jute, may be provided.
  • An alternating current cable'for transmitting heavy currents comprising a single core conductor and an armoring of ferromagnetic material force, for the purpose of reducing the armoring losses, as set forth.
  • An alternating current cable for transmitting heavyv currents comprising a single core conductor and an armoring of hardened carbon steel having a carbon content of between 0.7 to 0.9% and as low a proportion as possible of other admixtures, as set forth.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Soft Magnetic Materials (AREA)
US145588A 1925-10-10 1926-11-01 Armoring of single-conductor electric power cables Expired - Lifetime US1697541A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE259536X 1925-10-10

Publications (1)

Publication Number Publication Date
US1697541A true US1697541A (en) 1929-01-01

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ID=5966864

Family Applications (1)

Application Number Title Priority Date Filing Date
US145588A Expired - Lifetime US1697541A (en) 1925-10-10 1926-11-01 Armoring of single-conductor electric power cables

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US (1) US1697541A (enrdf_load_html_response)
GB (1) GB259536A (enrdf_load_html_response)
NL (1) NL20273C (enrdf_load_html_response)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174512A (en) * 1959-08-03 1965-03-23 Kenard D Brown Method and means for flexible tubing fabrication and product thereof
US3192795A (en) * 1962-05-02 1965-07-06 Telefiex Inc Flexible conduit
US3286022A (en) * 1964-02-06 1966-11-15 Kerite Company Insulated x-ray cables
US20160111184A1 (en) * 2013-06-19 2016-04-21 Nv Bekaert Sa Coated steel wire as armouring wire for power cable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174512A (en) * 1959-08-03 1965-03-23 Kenard D Brown Method and means for flexible tubing fabrication and product thereof
US3192795A (en) * 1962-05-02 1965-07-06 Telefiex Inc Flexible conduit
US3286022A (en) * 1964-02-06 1966-11-15 Kerite Company Insulated x-ray cables
US20160111184A1 (en) * 2013-06-19 2016-04-21 Nv Bekaert Sa Coated steel wire as armouring wire for power cable
US9905336B2 (en) * 2013-06-19 2018-02-27 Nv Bekaert Sa Coated steel wire as armouring wire for power cable

Also Published As

Publication number Publication date
NL20273C (enrdf_load_html_response)
GB259536A (en) 1927-01-20

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