US2953624A - Spacer for twin and multiple conductors of high voltage aerial transmission lines - Google Patents

Spacer for twin and multiple conductors of high voltage aerial transmission lines Download PDF

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Publication number
US2953624A
US2953624A US444604A US44460454A US2953624A US 2953624 A US2953624 A US 2953624A US 444604 A US444604 A US 444604A US 44460454 A US44460454 A US 44460454A US 2953624 A US2953624 A US 2953624A
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United States
Prior art keywords
conductors
spacer
twin
high voltage
transmission lines
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Expired - Lifetime
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US444604A
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Perrone Arrigo
Salvi Alessandro
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/12—Devices for maintaining distance between parallel conductors, e.g. spacer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/10—Miscellaneous
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/34—Combined diverse multipart fasteners
    • Y10T24/3427—Clasp
    • Y10T24/3439—Plural clasps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/71—Rod side to plate or side
    • Y10T403/7129—Laterally spaced rods

Definitions

  • the present invention relates to spacers for twin of multiple conductors of aerial high voltage transmission lines, designed to permit the elastic movements and displacements of the conductors in every direction and to maintain the electrical connection between them all, whilst eliminating the above mentioned drawbacks.
  • the spacer according to the invention substantially consists of a flexible deformable metallic curvilinear element, combined with dependable clamps to be connected with the conductors.
  • Said metallic curvilinear element can have any sort of shape, either closed or open.
  • means can, however, be provided for counteracting the deformation of the spacers beyond pre-established limits.
  • Fig. 1 shows an annular metallic spacer for a twin conductor.
  • Figs. 2 and 3 show two alternatives to the preceding solution.
  • Figs. 4 and 5 show an open type spacer for twin conductors.
  • Fig. 6 shows a closed type spacer for quadruple conductors.
  • Figs. 7 and 8 show a spacer for multiple conductors.
  • Fig. 9 illustrates a spacer for twin conductors with limited flexibility.
  • 1 are the conductors
  • 2 indicates the flexible deformable metallic elements connected to the conductors 1 by means of clamps 3 so as to form an electrical bridge between said conductors, keeping them yieldingly interspaced.
  • Said flexible deformable metallic elements have the shape of a circular ring in the embodiment according to Figs. 1 and 2, but, whilst in Fig. 1 they are arranged in the same horizontal plane of the conductors, they are located at right angles to the plane of the conductors in the embodiment of Fig. 2.
  • the flexible deformable metallic elements are oval in shape and are arranged on the same vertical plane of the conductors.
  • flexible deformable metallic elements have the shape of Patented Sept. 20, '1960 "an open curve and, more particularly,- they have a C- shape on Fig. 4 and an S-shape on Fig. 5. .
  • the flexible deformablemetallic element has the shape of a closed mixed line, all the rectilinear portions of which are connected to the conductors 1 by means of clamps 3, whilst the curvilinear portions consist in half-rings interconnecting alternatively opposite pairs of extremities of the rectilinear portions, the structure of said spacer deriving from that shown in Fig. 4.
  • Fig. 8 is analogous to the one of Fig. 7, but for the fact that the spacer derives its structure from the one shown in Fig. 5, whereby between each pair of conductors there is a free rectilinear portion of the spacer.
  • Fig. 9 shows a flexible deformable metallic element consisting in a circular ring 2, which is limited in its flexibility by means of a rod 4 fixed on two diametrally opposite points of said ring. Said rod can also be formed so as to be capable of lengthwise automatic adjustment.
  • the metallic curvilinear elements can consist either of a suitably curved rod or of a rope with free or interlaced spires.
  • the closed ring type can particularly be formed by a single steel wire wound up on itself in a spiraloid form.
  • the flexibility of the flexible deformable metallic elements will depend not only on the shape thereof and the nature of the material employed for their manufacture, but also on the number, pitch and section of the spires.
  • a spacer comprising a flexible deformable metallic curvilinear element constituted by a Wire rope positioned between said conductors, said rope forming an open loop whereby the said conductors are held in spaced apart relation by elastic forces of the said rope, and electrically conductive clamp means on said element firmly connecting each of the said conductors to an adjacent portion of said element.
  • a spacer comprising a flexible deformable metallic curvilinear element constituted by a wire rope positioned between said conductors, said rope forming a closed loop whereby the said conductors are held in spaced apart relation by elastic forces of the said rope, and a plurality of electrically conductive clamps on said element firmly connecting each of the said conductors to an adjacent portion of said element.
  • Spacer for twin and multiple conductors of high voltage, high power, aerial transmission lines comprising a flexible, deformable, resilient, metallic, curvilinear element constituted by a Wire rope positioned between said conductors; said element having a normal, unstressed shape conforming to a closed ring and being elastically deformable in response to forces imposed thereon by the conductors; and electrically conductive clamp means on said element adapted to firmly connect each of the conductors to an adjacent portion of said element.

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  • Suspension Of Electric Lines Or Cables (AREA)
  • Insulating Bodies (AREA)

Description

p 1960 A. PERRONE ET AL ,953,
SPACER FOR TWIN AND MULTIPLE CONDUCTORS OF HIGH VOLTAGE AERIAL TRANSMISSION LINES Filed July 20. 1954 INVENTORS: Arrigo Perrone By Alessandro Solvi Maxwell E. Sparrow A TTORNE Y.
United States Patent SPACER FOR TWIN AND MULTIPLE CONDUC- TORS OF HIGH VOLTAGE AERIAL TRANSMIS- SION LINES i Arrigo Perrone, Via Capranica 12, and Alessandro Salvi, 'Via Cosenz 32, both of Milan, Italy Filed July 20, 1954, Ser. No. 444,604
Claims priority, application Italy July 25, 1953 13 Claims. (Cl. 174-40) In the employ of twin and multiple conductors for great power aerial high voltage transmission lines it is necessary to use suitable spacers which, spacing the single conductors from each other, act also as an electrical bridge.
In said spacers it is very important to prevent the conductors from being damaged at the point of connection to said bridge.
In the conventional spacers such damages occur, as it is known, owing to the rigidity of the connection between the conductors as a consequence of the movements of a conductor in respect to the other ones due to electrodynamic stresses, difierent elongation, wind action, ice mufi accumulation and other external impulses of mechanical nature.
The present invention relates to spacers for twin of multiple conductors of aerial high voltage transmission lines, designed to permit the elastic movements and displacements of the conductors in every direction and to maintain the electrical connection between them all, whilst eliminating the above mentioned drawbacks.
The spacer according to the invention substantially consists of a flexible deformable metallic curvilinear element, combined with dependable clamps to be connected with the conductors. Said metallic curvilinear element can have any sort of shape, either closed or open.
According to a further feature of the invention, means can, however, be provided for counteracting the deformation of the spacers beyond pre-established limits.
The invention is illustrated in some embodiments thereof in the enclosed drawings, in which:
Fig. 1 shows an annular metallic spacer for a twin conductor.
Figs. 2 and 3 show two alternatives to the preceding solution.
Figs. 4 and 5 show an open type spacer for twin conductors.
Fig. 6 shows a closed type spacer for quadruple conductors.
Figs. 7 and 8 show a spacer for multiple conductors.
Fig. 9 illustrates a spacer for twin conductors with limited flexibility.
In all the shown embodiments, 1 are the conductors, whilst 2 indicates the flexible deformable metallic elements connected to the conductors 1 by means of clamps 3 so as to form an electrical bridge between said conductors, keeping them yieldingly interspaced. Said flexible deformable metallic elements have the shape of a circular ring in the embodiment according to Figs. 1 and 2, but, whilst in Fig. 1 they are arranged in the same horizontal plane of the conductors, they are located at right angles to the plane of the conductors in the embodiment of Fig. 2.
In Fig. 3 the flexible deformable metallic elements are oval in shape and are arranged on the same vertical plane of the conductors.
In the embodiments according to Figs. 4 and 5, the
flexible deformable metallic elements have the shape of Patented Sept. 20, '1960 "an open curve and, more particularly,- they have a C- shape on Fig. 4 and an S-shape on Fig. 5. .In both said In the embodiments of Figs. 7 the flexible deformablemetallic element has the shape of a closed mixed line, all the rectilinear portions of which are connected to the conductors 1 by means of clamps 3, whilst the curvilinear portions consist in half-rings interconnecting alternatively opposite pairs of extremities of the rectilinear portions, the structure of said spacer deriving from that shown in Fig. 4.
The embodiment according to Fig. 8 is analogous to the one of Fig. 7, but for the fact that the spacer derives its structure from the one shown in Fig. 5, whereby between each pair of conductors there is a free rectilinear portion of the spacer.
Finally, Fig. 9 shows a flexible deformable metallic element consisting in a circular ring 2, which is limited in its flexibility by means of a rod 4 fixed on two diametrally opposite points of said ring. Said rod can also be formed so as to be capable of lengthwise automatic adjustment.
As regards the structure of the metallic curvilinear elements, it can consist either of a suitably curved rod or of a rope with free or interlaced spires. The closed ring type can particularly be formed by a single steel wire wound up on itself in a spiraloid form.
In these cases the flexibility of the flexible deformable metallic elements will depend not only on the shape thereof and the nature of the material employed for their manufacture, but also on the number, pitch and section of the spires.
Of course, the invention is not limited to the embodiments above described and shown in the drawings by Way of example, but it comprises all the possible modifications thereof, without departing from the scope of the invention.
What we claim is:
1. In combination with a plurality of conductors of a high voltage high power aerial transmission line, a spacer comprising a flexible deformable metallic curvilinear element constituted by a Wire rope positioned between said conductors, said rope forming an open loop whereby the said conductors are held in spaced apart relation by elastic forces of the said rope, and electrically conductive clamp means on said element firmly connecting each of the said conductors to an adjacent portion of said element.
2. The combination according to claim 1 wherein said element has a semi-annular shape.
3. The combination according to claim 1 wherein said element has an S-shape.
4. In combination with a plurality of conductors of a high voltage high power aerial transmission line, a spacer comprising a flexible deformable metallic curvilinear element constituted by a wire rope positioned between said conductors, said rope forming a closed loop whereby the said conductors are held in spaced apart relation by elastic forces of the said rope, and a plurality of electrically conductive clamps on said element firmly connecting each of the said conductors to an adjacent portion of said element.
5. The combination according to claim 4 wherein said element is of annular shape.
6. The combination according to claim 4 wherein said element is disposed in a plane at right angles to the axes of said conductors.
7. The combination according to claim 4 wherein said rope is in the shape of a ring and wherein a rod extending parallel to said conductors is fixed to diametrically opposed points of said ring for limiting the flexibility of said ring.
8. The combination according to claim 4 wherein said element is of an annular shape, and wherein said rope is formed by a single steel wire wound up on itself in a spiraloid form, said spacer being disposed in the plane of the axes of said conductors.
9. Spacer for twin and multiple conductors of high voltage, high power, aerial transmission lines; said spacer comprising a flexible, deformable, resilient, metallic, curvilinear element constituted by a Wire rope positioned between said conductors; said element having a normal, unstressed shape conforming to a closed ring and being elastically deformable in response to forces imposed thereon by the conductors; and electrically conductive clamp means on said element adapted to firmly connect each of the conductors to an adjacent portion of said element.
10. Spacer according to claim 9 wherein said element is of annular shape.
11. Spacer according to claim 9 wherein said element is of oval shape.
12. Spacer according to claim 9 wherein a rod is fixed to diametrically opposite points of said ring intermediate said clamp means.
13. Spacer according to claim 9 wherein said rope is formed by a single steel wire wound up on itself in a spiraloid form.
References Cited in the file of this patent UNITED STATES PATENTS 280,947 Ohl July 10, 1883 290,753 Delany Dec. 25, 1883 318,172 Delany May 19, 1885 806,769 Bell Dec. 12, 1905 1,190,135 Faccioli July 4, 1916 1,668,346 Varney May 1, 1928. 1,751,827 Marshall Mar. 25, 1930 2,158,496 George May 16, 1939 2,374,823 Leib et a1 May 1, 1945 2,380,333 Scheldorf July 10, 1945
US444604A 1953-07-05 1954-07-20 Spacer for twin and multiple conductors of high voltage aerial transmission lines Expired - Lifetime US2953624A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT739796X 1953-07-05
IT863126X 1957-05-14

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US2953624A true US2953624A (en) 1960-09-20

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US444604A Expired - Lifetime US2953624A (en) 1953-07-05 1954-07-20 Spacer for twin and multiple conductors of high voltage aerial transmission lines
US734977A Expired - Lifetime US3107272A (en) 1953-07-05 1958-05-13 Spacer for twin and multiple conductors of high voltage aerial transmission lines

Family Applications After (1)

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US734977A Expired - Lifetime US3107272A (en) 1953-07-05 1958-05-13 Spacer for twin and multiple conductors of high voltage aerial transmission lines

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US (2) US2953624A (en)
DE (1) DE1110257B (en)
FR (2) FR1103932A (en)
GB (2) GB739796A (en)
IT (1) IT504267A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146359A (en) * 1960-12-16 1964-08-25 British Insulated Callenders Transposed electric bus bar systems for heavy alternating currents
US3152221A (en) * 1962-06-29 1964-10-06 Fanner Mfg Co Line spacer
US3176061A (en) * 1961-11-14 1965-03-30 Mc Graw Edison Co Conductor spacer
US3308228A (en) * 1965-08-19 1967-03-07 Fanner Mfg Co Line spacer, damper and corona eliminating means
US3327048A (en) * 1966-04-28 1967-06-20 Haro Lauri Petter Allan Vibration damping apparatus
US3916087A (en) * 1974-08-22 1975-10-28 Inst Rech De L Hydro Quebec Bundle-like expanded conductors
WO2002021656A1 (en) * 2000-09-04 2002-03-14 Northern Electric Distribution Ltd Overground cables
CN102361309A (en) * 2011-07-18 2012-02-22 邯郸供电公司 Conductor collision preventing method for bundled conductor

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE564154A (en) * 1955-03-23 1900-01-01 Preformed Line Products Co
US2973401A (en) * 1956-06-11 1961-02-28 Ohio Brass Co Conductor spacers
DE1061853B (en) * 1957-01-31 1959-07-23 Bbc Brown Boveri & Cie Field spacers for bundle conductors
US2918520A (en) * 1957-05-07 1959-12-22 Gen Electric Multiple conductor spreader
US2937225A (en) * 1957-07-11 1960-05-17 Gen Electric Conductor spreader
US2937226A (en) * 1957-07-12 1960-05-17 Gen Electric Conductor spreader
DE1047893B (en) * 1957-09-10 1958-12-31 Bayerische Schrauben Und Feder Field spacer for electrical stranded conductors
US2974184A (en) * 1958-08-19 1961-03-07 Richard J Mather Bundle conductor spacer
US2973403A (en) * 1958-09-08 1961-02-28 Ohio Brass Co Transmission line spacer
DE1117184B (en) * 1959-01-13 1961-11-16 Bbc Brown Boveri & Cie Field spacer arrangement for bundle conductors

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US280947A (en) * 1883-07-10 Insulator for electrical conductors
US290753A (en) * 1883-12-25 Pateick b
US318172A (en) * 1885-05-19 Patrick is
US806769A (en) * 1904-12-23 1905-12-12 Jasper N Bell Adjustable support for telegraph line-wires.
US1190135A (en) * 1911-04-27 1916-07-04 Gen Electric Means for preventing corona losses.
US1668346A (en) * 1925-05-02 1928-05-01 Aluminum Co Of America Suspension link for overhead contact wires and method of using same
US1751827A (en) * 1927-09-10 1930-03-25 John R Marshall Insulator
US2158496A (en) * 1935-06-20 1939-05-16 Rca Corp Transmission line
US2374823A (en) * 1942-06-15 1945-05-01 Copperweld Steel Co Vibration damper for suspended wires and cables
US2380333A (en) * 1942-12-31 1945-07-10 Gen Electric High frequency antenna

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US280947A (en) * 1883-07-10 Insulator for electrical conductors
US290753A (en) * 1883-12-25 Pateick b
US318172A (en) * 1885-05-19 Patrick is
US806769A (en) * 1904-12-23 1905-12-12 Jasper N Bell Adjustable support for telegraph line-wires.
US1190135A (en) * 1911-04-27 1916-07-04 Gen Electric Means for preventing corona losses.
US1668346A (en) * 1925-05-02 1928-05-01 Aluminum Co Of America Suspension link for overhead contact wires and method of using same
US1751827A (en) * 1927-09-10 1930-03-25 John R Marshall Insulator
US2158496A (en) * 1935-06-20 1939-05-16 Rca Corp Transmission line
US2374823A (en) * 1942-06-15 1945-05-01 Copperweld Steel Co Vibration damper for suspended wires and cables
US2380333A (en) * 1942-12-31 1945-07-10 Gen Electric High frequency antenna

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146359A (en) * 1960-12-16 1964-08-25 British Insulated Callenders Transposed electric bus bar systems for heavy alternating currents
US3176061A (en) * 1961-11-14 1965-03-30 Mc Graw Edison Co Conductor spacer
US3152221A (en) * 1962-06-29 1964-10-06 Fanner Mfg Co Line spacer
US3308228A (en) * 1965-08-19 1967-03-07 Fanner Mfg Co Line spacer, damper and corona eliminating means
US3327048A (en) * 1966-04-28 1967-06-20 Haro Lauri Petter Allan Vibration damping apparatus
US3916087A (en) * 1974-08-22 1975-10-28 Inst Rech De L Hydro Quebec Bundle-like expanded conductors
WO2002021656A1 (en) * 2000-09-04 2002-03-14 Northern Electric Distribution Ltd Overground cables
CN102361309A (en) * 2011-07-18 2012-02-22 邯郸供电公司 Conductor collision preventing method for bundled conductor

Also Published As

Publication number Publication date
IT504267A (en)
DE1110257B (en) 1961-07-06
GB863126A (en) 1961-03-15
FR72996E (en) 1960-09-22
GB739796A (en) 1955-11-02
FR1103932A (en) 1955-11-08
US3107272A (en) 1963-10-15

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