US2048450A - Stranded conductor - Google Patents
Stranded conductor Download PDFInfo
- Publication number
- US2048450A US2048450A US707964A US70796434A US2048450A US 2048450 A US2048450 A US 2048450A US 707964 A US707964 A US 707964A US 70796434 A US70796434 A US 70796434A US 2048450 A US2048450 A US 2048450A
- Authority
- US
- United States
- Prior art keywords
- stranded
- stranding
- conductor
- stranded conductor
- strands
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
-
- 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
- H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect
Definitions
- This invention relates 'to a method of manuinstance, be produced by making individual facture of stranded conductors of the -so-called wires, for instance all wires I of a thermo-plastic "re-entrant 7 type.
- a conductor of the "rematerial instead of making all the wires of metal entrant type”. may bedeflned asa stranded conwhich is conducting.
- the individual wires are surrounded by plastic material will soften, and owing to the an insulatingoxide layer or a thin layer of lacgaps thereby produced, it will be possible to quer.
- Such stranded conductors have the advanimpart to the stranded conductor a higher filling tage that even when traversed by currents of factor withouta greater expenditure in'mechanill high'frequency the current density'jis uniform in ,cal energy.
- stranded elements .II are laid 8F be mm mm aroundacentral wire ll, each of which stranded 0 m tf 0 elements ii consists of a core of thermo-plastic m m: a Etr snded condugir 11:: 12d W J W bemm'edbm "mm sui fa ii l fiethod of stranding is illusmieetingthecompetely stranded conductor to-a 3 six profile strands.” of 40 drawing or rolling process.
- n wire three or six stranded e- 'moplastic material has to be 'sufllciently solid mente may be laid around a wntral wire, each .at ordinary temperature to withstand the meof which stranded elements consists of a strucchanicalstressesofthestranding. Astr'anded ture,snchasshowninFis 2or3.
- s5 conductor according to-the invention may, for The emnpietely stranded conductor is heated 5 and is drawn by rolling or application of pressure.
- FIG 4 is a cross section through a stranded conductor according to Figure 3 after it has been subjected to a rolling process.
- the thermo-plastic material has, as will be seen, filled up completelythe spaces between the conducting wires, thus serving at the same time as an insulation between the wires. If a stranded conductor built up as hereinbefore described, is used for deep sea submarine cables, the further advantage is attained that the thermo-plastic material serves at the same time as a pressure-equalizing means.
- the profile strands used according to the present invention may consist of any thermo-plastic insulating material used in the electrical art, for instance guttapercha, Paragutta", balata etc.
- thermo-plastic insulating material used in the electrical art, for instance guttapercha, Paragutta", balata etc.
- polystyrol since this material can be drawn into rigid strings or bands and in addition thereto, it possesses especially good electrical properties.
- mixtures of polystyrcl, with guttapercha, balata, Paragutta or the like, are used for the profile strands.
- thermo-plastic profile strands instead of using thermo-plastic profile strands as hereinbefore described, use is made of an intermediate layer of a soluble substance, so that instead of subjecting the stranded conductor to heat treatment, it can be treated by means of a solvent. For instance, it is possible to dissolve intermediate layers of guttapercha before the rolling or drawing process, by means of heme].
- a method of manufacturing a high frequency stranded conductor of the type in which each strand is insulated from the next, and the strands change relative positions to minimize skin eiiect consisting in inserting profile strands of an insulating thermoplastic material between the stranding elements of the stranded conductor and stranding them therewith, softening the said profile strands after the stranding and subjecting the stranded conductor to pressure in such a way that the profile strands are distributed between the stranding elements.
- profile strands by heat after the stranding and subjecting the stranded conductor to pressure in such a way that the profile strands are distributed between the stranding elements.
- a method of manufacturing a high frequency stranded conductor of the type in which I each strand is insulated from the next, and the strands change relative positions to minimize skin effect consisting in inserting profile strands of an insulating soluble material between the stranding elements of the stranded conductor and stranding them therewith, softening the said profile strands by means of a solvent after the stranding and subjecting the stranded conductor to pressure in such a way that the profile strands are distributed between the stranding elements.
- a method of manufacturing a high frequency stranded conductor of the type in which each strand is insulated from the next, and the strands change relative positions to minimize skin efiect consisting in stranding around a central core a $0 plurality of strands, each comprising a core of thermoplastic material around which there is stranded a layer of conducting wires, softening all the said profile strands, after the stranding of the strands around the said central core, and subjecting the entire stranded conductor to prasure in such a way that the profile strands are distributed between the stranding elements.
- a method of manufacturing a high frequency stranded conductor of the type in which each 39 strand is insulated from the next, and the strands change relative positions to minimize skin eifect consisting in inserting profile strands of polystyrd! between the stranding elements of the stranded conductor and stranding them therewith, softening the said profile strands of polystyrol after the stranding, by heat, and subjecting the stranded conductor to pressure in such a way that the profile strands are distributed between the stranding elements.
- a method of manufacturing a high frequency stranded conductor of the type in which each strand is insulated from the next, and the strands change relative positions to minimize skin efiect consisting in inserting profile strands of polystyrol mixed with insulating thermoplastic material between the stranding elements and stranding them therewith, softening the said profile strands of polystyrol mixed with insulating thermoplastic material after the stranding, by heat, and subjecting the stranded conductor to pressure in such a way that the profile strands are distributed between the stranding elements.
Description
July 21, 1936.
H. HORN STRANDED CONDUCTOR Filed Jan. 23, 1934 Patented Jul 21, 1936 i i 2,048,450
UNITED STATES PATENT OFFICE Application January 2:, 1034, Serial s... 707,964 In Germanylannary 24, 1933 china. (cl. ire-is) This invention relates 'to a method of manuinstance, be produced by making individual facture of stranded conductors of the -so-called wires, for instance all wires I of a thermo-plastic "re-entrant 7 type. A conductor of the "rematerial instead of making all the wires of metal entrant type". may bedeflned asa stranded conwhich is conducting. However, other methods I ductor in which each one of the wires of which of stranding are to be preferred, as will hereinit is composed changes its position in the cross after bereferred to. If a strandedconductor with section oi the conductor, in such a manner that thermo-plastic layers interposed therein accordit passes in a regular sequence from the centre ing to the invention is subjected to a drawing or of the cross section of the conductor to the outer rolling process and heat is simultaneously apperiphery, from which it returns again to the plied'thereto, the strands consisting of thermo- 10 centre. The individual wires are surrounded by plastic material will soften, and owing to the an insulatingoxide layer or a thin layer of lacgaps thereby produced, it will be possible to quer. Such stranded conductors have the advanimpart to the stranded conductor a higher filling tage that even when traversed by currents of factor withouta greater expenditure in'mechanill high'frequency the current density'jis uniform in ,cal energy.
all parts or the cross section of the conductor Instead of using two conductors with one and thelatter is therefore free from the skin strand of thermo-plastic material to form a effect which increases the resistance. Such constranded element of a higher order, as shown in ductors are thus suitable for the transmission of Figure 1, use is preferably made or a larger numcurrents of high frequency and may, for instance. berof .individual conductors, for instance five of 20 be emp oyed 8- h l t in cable! intended fol, six, which are stranded together around a core flfiquencmh I of the'rmo-plastic. material. However, other In the W W drawinsz modes of stranding a're possible in which a m 1 1111mm!!! one method 01 stranded' conductor according to the invention 5 conductors accordins o the invention is rendered suitable iorv rolling or drawing, by 2 m n v illustrates a second new inserting between the stranded elements thermo- .I'isur 3 fill-lamb & third m h Ind plastic profile strands whichare rendered plastic P181118 {111mm I mm under the action of heat and chan e the me- 111 68 1": 3 t in the ed m rigidity of the stranded conductor in w nefernngtorigurelthreesingleconducton m w 5 Md It has, for instance, been found that the evenm a i g able space can be especially well utilized by a strand of higher or er three 0 wh imag method of mama which lsimusmted turn the! ure 2. Three stranded elements .II are laid 8F be mm mm aroundacentral wire ll, each of which stranded 0 m tf 0 elements ii consists of a core of thermo-plastic m m: a Etr snded condugir 11:: 12d W J W bemm'edbm "mm sui fa ii l fiethod of stranding is illusmieetingthecompetely stranded conductor to-a 3 six profile strands." of 40 drawing or rolling process. Asaresult oithe m are laid around we m the we minimum mm was there are laid six further stranded elements, have tc g g g x g fi 1? d '3 u each of which consists of a core of thermo-piastic conductor and increases its cost of manufacture. 11, Round which 81! Individual w e 28 According to the invention, during h havebeen stranded. Thus the whole of the iscture of the stranded conductonroaie strands Med conductor r y o t ined mprises of a' thermoplastic material are inserted at suitthirty-seven conducting wires. able places between the individual'stranded ele- In order toproduce a conductor of more thane1 50 inents and are stranded therewith. The therev n wire three or six stranded e- 'moplastic material has to be 'sufllciently solid mente may be laid around a wntral wire, each .at ordinary temperature to withstand the meof which stranded elements consists of a strucchanicalstressesofthestranding. Astr'anded ture,snchasshowninFis 2or3. s5 conductor according to-the invention may, for The emnpietely stranded conductor is heated 5 and is drawn by rolling or application of pressure.
Figure 4 is a cross section through a stranded conductor according to Figure 3 after it has been subjected to a rolling process. The thermo-plastic material-has, as will be seen, filled up completelythe spaces between the conducting wires, thus serving at the same time as an insulation between the wires. If a stranded conductor built up as hereinbefore described, is used for deep sea submarine cables, the further advantage is attained that the thermo-plastic material serves at the same time as a pressure-equalizing means.
The profile strands used according to the present invention, may consist of any thermo-plastic insulating material used in the electrical art, for instance guttapercha, Paragutta", balata etc. Especially advantageous is polystyrol, since this material can be drawn into rigid strings or bands and in addition thereto, it possesses especially good electrical properties.
Further, mixtures of polystyrcl, with guttapercha, balata, Paragutta or the like, are used for the profile strands.
Instead of using thermo-plastic profile strands as hereinbefore described, according to a further modification of the invention, use is made of an intermediate layer of a soluble substance, so that instead of subjecting the stranded conductor to heat treatment, it can be treated by means of a solvent. For instance, it is possible to dissolve intermediate layers of guttapercha before the rolling or drawing process, by means of heme].
What I claim is: v
1. A method of manufacturing a high frequency stranded conductor of the type in which each strand is insulated from the next, and the strands change relative positions to minimize skin eiiect, consisting in inserting profile strands of an insulating thermoplastic material between the stranding elements of the stranded conductor and stranding them therewith, softening the said profile strands after the stranding and subjecting the stranded conductor to pressure in such a way that the profile strands are distributed between the stranding elements.
2. A method of manufacturing a high fre-' quency stranded conductor of the type in which each strand is insulated from the next, and the stranding them therewith, softening the said,
profile strands by heat after the stranding and subjecting the stranded conductor to pressure in such a way that the profile strands are distributed between the stranding elements.
3. A method of manufacturing a high frequency stranded conductor of the type in which I each strand is insulated from the next, and the strands change relative positions to minimize skin effect, consisting in inserting profile strands of an insulating soluble material between the stranding elements of the stranded conductor and stranding them therewith, softening the said profile strands by means of a solvent after the stranding and subjecting the stranded conductor to pressure in such a way that the profile strands are distributed between the stranding elements.
4. A method of manufacturing a high frequency stranded conductor of the type in which each strand is insulated from the next, and the strands change relative positions to minimize skin efiect, consisting in stranding around a central core a $0 plurality of strands, each comprising a core of thermoplastic material around which there is stranded a layer of conducting wires, softening all the said profile strands, after the stranding of the strands around the said central core, and subjecting the entire stranded conductor to prasure in such a way that the profile strands are distributed between the stranding elements.
5. A method of manufacturing a high frequency stranded conductor of the type in which each 39 strand is insulated from the next, and the strands change relative positions to minimize skin eifect, consisting in inserting profile strands of polystyrd! between the stranding elements of the stranded conductor and stranding them therewith, softening the said profile strands of polystyrol after the stranding, by heat, and subjecting the stranded conductor to pressure in such a way that the profile strands are distributed between the stranding elements.
6. A method of manufacturing a high frequency stranded conductor of the type in which each strand is insulated from the next, and the strands change relative positions to minimize skin efiect, consisting in inserting profile strands of polystyrol mixed with insulating thermoplastic material between the stranding elements and stranding them therewith, softening the said profile strands of polystyrol mixed with insulating thermoplastic material after the stranding, by heat, and subjecting the stranded conductor to pressure in such a way that the profile strands are distributed between the stranding elements.
HEINZ HORN. 6d
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE423695X | 1933-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2048450A true US2048450A (en) | 1936-07-21 |
Family
ID=6471902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US707964A Expired - Lifetime US2048450A (en) | 1933-01-24 | 1934-01-23 | Stranded conductor |
Country Status (3)
Country | Link |
---|---|
US (1) | US2048450A (en) |
FR (1) | FR423695A (en) |
GB (1) | GB423695A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2427507A (en) * | 1944-04-11 | 1947-09-16 | Carbide & Carbon Chem Corp | Method of producing sealed cables |
US2438956A (en) * | 1942-12-24 | 1948-04-06 | Standard Telephones Cables Ltd | High-frequency cable |
US2467857A (en) * | 1943-08-12 | 1949-04-19 | Gen Electric | Adjustable delay line |
US2606650A (en) * | 1945-04-23 | 1952-08-12 | Martin E Evans | Continuous wire drawing machine |
US2708176A (en) * | 1951-06-14 | 1955-05-10 | Us Rubber Co | Coaxial cable and method of making same |
US2710557A (en) * | 1949-11-18 | 1955-06-14 | Sundt Engineering Company | Musical instrument strings |
US3131530A (en) * | 1959-11-28 | 1964-05-05 | Dietz Alfred | Wire ropes |
US3291897A (en) * | 1963-01-12 | 1966-12-13 | Bramley Anthony | Electrically conducting rope |
US4079192A (en) * | 1973-06-12 | 1978-03-14 | Bernard Josse | Conductor for reducing leakage at high frequencies |
US4158946A (en) * | 1977-07-07 | 1979-06-26 | N. V. Bekaert S.A. | Metal cord |
US4301681A (en) * | 1979-09-06 | 1981-11-24 | Drexelbrook Controls, Inc. | Method of using capacitor probe with a semiconductive electrode |
EP0119155A1 (en) * | 1983-02-11 | 1984-09-19 | Siemens Aktiengesellschaft | Stranded conductor for flexible electrical cables and method of manufacturing it |
US4677256A (en) * | 1984-08-31 | 1987-06-30 | Siemens Aktiengesellschaft | Flexible electrical control cable |
US6091025A (en) * | 1997-07-29 | 2000-07-18 | Khamsin Technologies, Llc | Electrically optimized hybird "last mile" telecommunications cable system |
US6239379B1 (en) | 1998-07-29 | 2001-05-29 | Khamsin Technologies Llc | Electrically optimized hybrid “last mile” telecommunications cable system |
US6684030B1 (en) | 1997-07-29 | 2004-01-27 | Khamsin Technologies, Llc | Super-ring architecture and method to support high bandwidth digital “last mile” telecommunications systems for unlimited video addressability in hub/star local loop architectures |
FR3087934A1 (en) * | 2018-10-29 | 2020-05-01 | Nexans | METHOD FOR ASSEMBLING AN ELECTRICAL CABLE WITH REDUCED SKIN EFFECT AND CORRESPONDING ELECTRICAL CABLE |
EP4122685A1 (en) | 2021-07-23 | 2023-01-25 | Corebon AB | Molding tool, method of manufacturing the same and method of producing a composite part in said tool |
-
1910
- 1910-12-16 FR FR423695A patent/FR423695A/en not_active Expired
-
1934
- 1934-01-23 US US707964A patent/US2048450A/en not_active Expired - Lifetime
- 1934-01-24 GB GB2511/34A patent/GB423695A/en not_active Expired
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2438956A (en) * | 1942-12-24 | 1948-04-06 | Standard Telephones Cables Ltd | High-frequency cable |
US2467857A (en) * | 1943-08-12 | 1949-04-19 | Gen Electric | Adjustable delay line |
US2427507A (en) * | 1944-04-11 | 1947-09-16 | Carbide & Carbon Chem Corp | Method of producing sealed cables |
US2606650A (en) * | 1945-04-23 | 1952-08-12 | Martin E Evans | Continuous wire drawing machine |
US2710557A (en) * | 1949-11-18 | 1955-06-14 | Sundt Engineering Company | Musical instrument strings |
US2708176A (en) * | 1951-06-14 | 1955-05-10 | Us Rubber Co | Coaxial cable and method of making same |
US3131530A (en) * | 1959-11-28 | 1964-05-05 | Dietz Alfred | Wire ropes |
US3291897A (en) * | 1963-01-12 | 1966-12-13 | Bramley Anthony | Electrically conducting rope |
US4079192A (en) * | 1973-06-12 | 1978-03-14 | Bernard Josse | Conductor for reducing leakage at high frequencies |
US4158946A (en) * | 1977-07-07 | 1979-06-26 | N. V. Bekaert S.A. | Metal cord |
US4301681A (en) * | 1979-09-06 | 1981-11-24 | Drexelbrook Controls, Inc. | Method of using capacitor probe with a semiconductive electrode |
EP0119155A1 (en) * | 1983-02-11 | 1984-09-19 | Siemens Aktiengesellschaft | Stranded conductor for flexible electrical cables and method of manufacturing it |
US4677256A (en) * | 1984-08-31 | 1987-06-30 | Siemens Aktiengesellschaft | Flexible electrical control cable |
US6091025A (en) * | 1997-07-29 | 2000-07-18 | Khamsin Technologies, Llc | Electrically optimized hybird "last mile" telecommunications cable system |
US6241920B1 (en) | 1997-07-29 | 2001-06-05 | Khamsin Technologies, Llc | Electrically optimized hybrid “last mile” telecommunications cable system |
US6684030B1 (en) | 1997-07-29 | 2004-01-27 | Khamsin Technologies, Llc | Super-ring architecture and method to support high bandwidth digital “last mile” telecommunications systems for unlimited video addressability in hub/star local loop architectures |
US6239379B1 (en) | 1998-07-29 | 2001-05-29 | Khamsin Technologies Llc | Electrically optimized hybrid “last mile” telecommunications cable system |
FR3087934A1 (en) * | 2018-10-29 | 2020-05-01 | Nexans | METHOD FOR ASSEMBLING AN ELECTRICAL CABLE WITH REDUCED SKIN EFFECT AND CORRESPONDING ELECTRICAL CABLE |
EP3648120A1 (en) * | 2018-10-29 | 2020-05-06 | Nexans | Method for assembling an electric cable with reduced skin effect and corresponding electric cable |
EP4122685A1 (en) | 2021-07-23 | 2023-01-25 | Corebon AB | Molding tool, method of manufacturing the same and method of producing a composite part in said tool |
EP4122685B1 (en) * | 2021-07-23 | 2023-12-27 | Corebon AB | Molding tool, method of manufacturing the same and method of producing a composite part in said tool |
Also Published As
Publication number | Publication date |
---|---|
GB423695A (en) | 1935-02-06 |
FR423695A (en) | 1911-04-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2048450A (en) | Stranded conductor | |
US3580987A (en) | Electric cable | |
GB1143226A (en) | Armoured cable | |
US2425294A (en) | Method of making insulated multiconductor structures | |
ES8503883A1 (en) | Method of manufacturing a communication cable. | |
GB2180092A (en) | Reinforced electrical cable | |
CA2545161A1 (en) | Data cable with cross-twist cabled core profile | |
ES336605A1 (en) | Signal transmission cable | |
CN107195367A (en) | Ultra-large-section high-voltage low-loss optical fiber composite submarine cable and preparation method thereof | |
EP0375655A3 (en) | Winding wire and method of producing the same | |
US2335088A (en) | Weatherproof electric wire | |
JPH05101711A (en) | Low electrostatic capacity type insulated wire | |
US3728474A (en) | Shielded power cable | |
US1740076A (en) | Electric cable | |
CN104183331A (en) | IE-grade power cable for third-generation passive nuclear power plant gentle environment and production method | |
CN203607155U (en) | Manufacturing device of watertight type overhead protection cable | |
CN104183322A (en) | IE-grade instrument cable for third-generation passive nuclear power plant gentle environment and production method | |
US2005614A (en) | Rubber insulated cable | |
SE7613607L (en) | PROCEDURE FOR MANUFACTURE OF AN ELECTRICAL CABLE | |
GB910275A (en) | Method of manufacturing a cavity-insulated electric cable | |
CN110706862A (en) | Forming method for power line production and preparation | |
DE714544C (en) | Multiple carrier frequency system for telecommunication cables | |
CN103474179A (en) | Manufacturing device and manufacturing method for watertight overhead protective cable | |
JPS63131409A (en) | Extrusion drawn insulated wire | |
US3027287A (en) | Method of forming insulated wire |