US3739077A - Multiple conductor bundle support and spacer - Google Patents

Multiple conductor bundle support and spacer Download PDF

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US3739077A
US3739077A US00258143A US3739077DA US3739077A US 3739077 A US3739077 A US 3739077A US 00258143 A US00258143 A US 00258143A US 3739077D A US3739077D A US 3739077DA US 3739077 A US3739077 A US 3739077A
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conductors
inner support
carrier
support means
securing
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P Winkelman
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/20Spatial arrangements or dispositions of lines or cables on poles, posts or towers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/12Devices for maintaining distance between parallel conductors, e.g. spacer

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  • ABSTRACT Devices maintaining the structural integrity and stability of multiple conductor bundles of a high voltage transmission line are each constituted by a unitary circular member having a plurality of conforming members conjoined therewith in a connective relationship which faces openings of essentially semi-cylindrical complementary recesses therein so as to form an array of corresponding passages wherein the conductors of a bundle are maintained interconnected and thereby structurally supported in an expanded spatial disposition. Spaced, interjacent coacting portions of the respective members obtain the requisite alignment of the recesses, and facilitate the security of the assembly as its respective passages are adapted to have clamped therein individual conductors of the bundle.
  • Embodiments of the assembly having a reinforced unitary member including extensions thereof for junctures to insulators facilitate connection of the conductor bundle to a transmission line tower.
  • Cable support structures of the type disclosed herein have heretofore been used primarily as a carrier and spacer or spreader for power transmission lines having only three or four conductors whereof respective ones of three conductors carry the separate phases of the power transmitted, and a fourth conductor oridinarily functions as a messenger, or a catenary support wire.
  • each conductor is secured in a separate clamping device by one or two bolts,-or preformed rods.
  • Increasing the number of subconductor cables constituting a bundle in adaptions of prior arrangements renders them cumbersome, and possibly undesirable due to the multiplicity of bolt connections required that are subject to loosening from poor torquing or with time.
  • Exemplary of a bolted clamp construction is the conductor spacer disclosed in US. Pat. No. 3,475,544, granted Oct. 28, 1969, to A. J. Reed.
  • Typical of other prior art constructions are the arrangements disclosed in US. Pat. No. 2,928,636, issued Mar. 15, 1960, to A. T. Flower, in US. Pat. No. 3,005,609, issued Oct. 24, 1961, to E. J. Joffe, and US. Pat. No. 3,055,623, issued Sept. 25, 1962, to S. P. Becker.
  • Each of these patented structures includes a pair of members within which conductor cables are secured in a requisite spatial relationship when these securing members are either pivoted or shifted with respect to each other to act as a clamp upon the cables when they are placed in generally conforming openings defined by specially formed portions of the members.
  • these members usually have predetermined characteristic structural configurations necessitated by the particular utilization wherein they secure no more than three or four cables, and as a result their forms are generally restricted to the singular application for which they are fitted.
  • a multiple conductor bundle according to the present invention has its basis in a uniquely adaptable configuration which is readily expandable for devices having utility in securing conductor bundles accommodating a large number of subconductors.
  • conductor bundles structured as disclosed herein are especially applicable to support the multiplicity of conductors that are used in implementing power supply in any one phase of ultrahigh voltage transmission.
  • a further objective of the invention is to provide a cable support construction having applicability to conductor bundles of different multiplicities of subconductors.
  • FIG. 1 is a general perspective view of one embodiment of the present invention illustrating its adaptation as a spacer for a multiple conductor bundle;
  • FIG. 2 is a sectional view of part of the invention taken on line 2-2 of FIG. 1, revealing details of structure facilitating assembly thereof;
  • FIG. 3 is a fragmentary showing of the spacer of FIG. 1, providing an elevational view of conductor retaining structure thereof;
  • FIG. 4 is a sectional view of part of the invention taken on line 4-4 of FIG. 3, providing a further view of the retaining structure;
  • FIG. 5 is a front elevational view of a further embodiment of the present invention having particular utility as a suspension yoke for a multiple conductor bundle;
  • FIG. 6 is a sectional view of part of the invention taken on line 6-6 of FIG. 5, revealing details of a conductor retaining structure thereof;
  • FIG. 7 is a sectional view of part of the suspension yoke embodiment of FIG. 5, taken on line 7-7 therein, revealing details of keying and securing structure thereof;
  • FIG. 8 is a fragmentary showing providing a front elevational view of part of a still further embodiment of the present invention having particular utility as a suspension yoke for a multiple conductor bundle;
  • FIG. 9 is a sectional view of part of the suspension yoke embodiment of FIG. 8, taken on line 9-9 therein, revealing details of keying and securing structure thereof.
  • the form of the present invention disclosed herein with reference to FIGS. 1 to 4 features a relatively large circular composite conductor spacer 10 which is characterized by an inner annulus 12 around whose outer periphery are positioned a set of prefabricated quadrants 14, 16, 18, and 20, forming a segmented collar about the annulus. These quadrants are retractable parts in a clamping arrangement provided for securing in spacer 10 a conductor bundle B so as to maintain the respective conductors Cof the bundle fastened at requisite locations about the spacer.
  • the individual quadrants are alike with respect to their structural form, and each is made applicable in substantially the same manner to constrain a number of conductors C in the predisposed, spaced circular arrangement shown in the figure.
  • quadrant 14 makes evident a unitary construction 'therefor wherein a round pipe 22 curved approximately 90 degrees has been made integral with a correspondingly curved relatively narrow plate 24 by attachment, with welds or the like, between the curved outer peripheral edge of the plate and a curvilinear strip on a concaved surface of the pipe. Openings at the ends of pipe 22 are sealed by hemispherical caps 26 and 28 to provide the aforesaid clamping arrangement with components having a rigid construction made weather resistant by their continuous external surfaces.
  • the respective outer quadrants 14, 16, 18, and 20 can be produced as castings in a conventional manner which would permit a more steamlined integration of components than for the welded embodiment illustrated herein.
  • Quadrant 14 additionally carries a set of clevis connectors 30 and 32.
  • Each such connector as exemplified by the showing of connector 32 in FIG. 2, is in part constituted by a pair of short bars 34 and 36, which are maintained apart, facing in alignment, by attachment to the opposite sides of plate 24, by welds or the like, at separated areas of strength between the respective ends of the quadrant.
  • bars 34 and 36 of connector 32 are spaced in parallel, and extend radially past the inner peripheral edge of plate 24. The inner facing surfaces of the bars extensions are undercut slightly to provide a widened open passage 38 therebetween.
  • Annulus 12 is essentially a unitary ring of plate material which is characterized by a generally uniform radial width, and an axial breadth closely approximating the breadth of quadrant plate 24.
  • connector passage 38, and a passage corresponding thereto defined by extended bars of connector 30 are suitably structured and disposed to receive therein cross-sectional portions of annulus 12 when quadrant 14 is properly placed for assembly to the annulus.
  • the assembly is subsequently made fast by keepers, such as bolt or pin 40 shown in FIG. 2, which extend through axially aligned openings in the connector bar extensions and holes through annulus 12 disposed to mate with the aforesaid openings in the connector parts.
  • Application of a suitable cotter pin 42 to secure bolt or pin 40 in the usual manner, is duplicated for all other such keepers.
  • each conductor C is retained at a predetermined location within the circularity of spacer by a fitting F.
  • Each such fitting is a split structure including a first part made integral with annulus 12 in a generally semi-circular recess thereof, and a matching second part made integral with an associated quadrant in a corresponding generally semicircular recess thereof.
  • These recesses are uniformly arrayed around annulus l2 within the outer peripheral edge thereof and the inner peripheral edges of quadrants l4, 16, 18, and 20, such that individual recesses of the annulus are paired respectively with quadrant recessesto form by alignment of their facing openings a circular array of split circular apertures A.
  • FIGS. 3 and 4 a split structure of an exemplary fitting F which is accommodated in an aperture A appears in FIGS. 3 and 4 as having its matching parts symmetrically arranged in annulus l2 and quadrant 14, respectively.
  • retainer shells 50 and 52 which when affixed in place, by welds or the like, constitute a split bearing collar 54.
  • collar 54 is placed so as to constitute raised ridges extending generally symmetrically from the planar surfaces of the 0pposite sides of annulus 12-and quadrant plate 24 when conformed in spacer l0.
  • Sleeve 60 provides in a central passage 62 thereof a gripping surface which restrains a conductor C.
  • Neoprene Electrically conductive materials are used throughout in the fabrication of spacer 10 so as to constitute conductors C maintained therein a conjoint conductive path for conductor bundle B.
  • Aluminum plate, pipe, and bar are particularly suitable when used as indicated herein for the several structural elements of spacer 10, with the exceptions of the quadrant securing bolts or pins and cotter pins which are normally made of hardened galvanized steel and stainless steel, respectively, and the bushing halves of the conductor gripping bearing sleeves for which a thick conducting Neoprene is particularly appropriate.
  • An exemplary form of such Neoprene has a DC. volume resistivity at 20C of not more than 600,000 ohm-cm, and a Durometer hardness of 60.
  • the structural arrangement exemplified by the embodiment of the invention shown in FIGS. 1 to 4 is most advantageously employed as a conductor spacer for multiple conductor bundles. Nevertheless, when insulation materials are used for the bearing fittings in one or several apertures of the aforesaid arrangement, so as to conductively isolate catenary cables or support rods which are made secure in such apertures, a broadly applicable conductor supporting spacer also becomes available in accordance with the present invention as shown in FIGS. 1 to 4.
  • FIGS. 5 to 7 An arrangement for one such V-type suspension yoke appears in FIGS. 5 to 7 where a yoke is shown structured about an inner circular frame 72 having arms 74, 76, 78 and 80 which are uniformly disposed to radiate from a central mass thereof to a ringlike outer peripheral rim 82. This spatial disposition of the arms, which strengthens and adds rigidity to frame 72, also apportions this circular frame between succeeding ones of its arms into four sectors.
  • rim section 86, 88, 90 and 92 are shown in FIG. 5 as having assembled therewith quadrants 94, 96, 98 and 100, respectively. Referring particularly to the assembly at rim section 86, for an example of the arrangement at the other such sections, reveals that in the outer peripheral edge of section 86 are formed four uniformly spaced semicircular recesses 102, 104, 106, and 108.
  • the frame and quadrant recesses are by this means paired to obtain an alignment of their axial passages giving rise to a set of uniformly spaced parted apertures, each of which is adapted to securely maintain therein a conductor grip fitting to be hereinafter more fully explained.
  • clevis connectors Facilitating the requisite attachment of the quadrants separately to frame 72 are a circular array of clevis connectors which project radially toward a center from the inner peripheral edges of the respective quadrants.
  • An assembly of the quadrants with frame 72 locates spaced portions of frame rim 82 within a circular array of passages provided by aligned channels fashioned by the paired legs of individual clevis connectors. Holes in these legs thus axially aligned with matching holes in rim 82 are equipped with headed bolts or pins which engage these mated holes, and are thereafter secured in position by cotter pins in a conventional manner.
  • the clevis connectors applicable herein more particularly appear from reference to FIGS.
  • quadrants 94 and 98 Formed at the extended ends of quadrant 94 are radially disposed clevis connectors 120 and 122, respectively, which bracket further radial connectors 124, 126, and 128, uniformly spaced between them.
  • the quadrants have a semicircular outer ridge portion and generally flat parallel sides from which the paired legs of the clevis connectors project to overlap the parallel sides of frame rim 82.
  • clevis connector 128, appearing in FIG. 6, provides legs 130 and 132 between which frame rim section 86 is pinned by a bolt 134, as was previously explained.
  • clevis connector 136 at one extended end of quadrant 98.
  • This end connector which is exemplary of the other such end clevis connectors, provides slightly longer, partially rounded legs 138 and 140 forming a channel 142 in which frame rim section 90 is fastened by a bolt 144.
  • Raised flanges or bosses which edge the respective rims of recesses 106 and 114 provide theipassages thereof with broadened bearing surfaces 152 and 154 for better maintaining in aperture 150 a conductor grip fitting 156, as was heretofore indicated.
  • a preferred form of this fitting is a reinforced armored rod conductor grip such'as disclosed in U.S. Pat. No. 2,722,393, granted Nov. 1, 1955, to T.
  • fitting 156 includes a set of helically preformed rods, which when assembled on conductor C constitute a bulging sleeve 158 thereon, and a pair of semicylindrical bearing shoes 160 and 162 which are adapted to grip sleeve 158 and lock it to surfaces 152 and 154 when they are drawn together to form aperture 150.
  • the gripped section of conductor C is enveloped by a pair of complementary protuberating semicylindrical sheaths 164 and 166, which have conductor accommodating recesses therein, and are adapted to underlie the rods forming sleeve 158 at the bulge thereof.
  • sheaths are advantageously made of the conductive Neoprene disclosed for use in the bearing sleeves of the FIGS. 1 to 4 embodiment herein wherefore they also constitute conductive links between the multiple conductors C by way of conductive material, such as aluminum, used for the major structural members of yoke 70.
  • conductive material such as aluminum
  • the V-type suspension structure illustrated in FIG. 5 is arranged symmetrically about a vertical diametrical plane of circular conductor bundle yoke 70 to properly maintain this yoke within a transmission line by providing connections therefrom to a transmission line tower.
  • This connective structure includes conformable linkages and 172 which attach inner frame 72 of the yoke to standard line insulator components 174 and 176, respectively, of the ball-and-socket type which is indicated in FIGS. 7 and 8, and more fully disclosed on pages 1215 and 1216 of the Standard Handbook for Electrical Engineers, edited by A. E. Knowlton, published by McGraw-Hill Book Co., Inc., New York, Ninth Edition (1957). As more fully appears from FIGS.
  • linkage 170 pivotally joins a clevis member depended from insulator component 174 to a tongue 182 which is an integral part of frame rim 82. More particularly, tongue 182 projects outwardly from frame 72 in line with radial arm 78 of the frame, and beyond the outer periphery of yoke 70 in traversing enlarged channels within clevis connectors at the facing ends of quadrants 96 and 98. Tongue 182 is in effect a bar-like suspension arm which is loosely received between legs 184 and 186 and socket-clevis member 180, and maintained dependent therefrom by a hexagonal bolt 188 whose shank extends through axially aligned holes in the legs and tongue.
  • Bolt 188 is secured to clevis member 180 by a nut 190 and cotter pin in a conventional manner.
  • linkage 172 is correspondingly constituted by a tongue 192, projecting from frame 72, which, by its connection within a socket-clevis member 194 depended from insulator component 176, functions as a further suspension arm for yoke 70.
  • the second embodiment of a V-type suspension structure according to the present invention is characterized by multiple attachments from each connective linkage of a multiple conductor bundle suspension yoke to transmission tower insulator components.
  • a yoke 200 of this embodiment is shown 7 as having an inner circular frame 202 including four evenly spaced radial arms 204, 206, 208 and 210, and quadrant members 212, 214, 216, and 218 arranged about the outer peripheral edge of the frame so as to complement the sectors defined between the aforesaid radial arms.
  • An assembly of yoke 200 obtained by a circular distribution of clevis connectors therein operates to keep multiple conductors C of a conductor bundle secured in conductor grip fittings maintained within re- 1 Beings forming apertures of the yoke in effectively the same manner as that previously disclosed with respect to the first embodiment of the yoke appearing in FIGS. 5 to '7.
  • quadrant 218 fully corresponds to the equivalent structure in the first embodiment, since for the requirements of the second embodiment, to be hereinafter more fully explained, quadrants 212 and 216 at one end and quadrant 214 at both ends have a configuration which is distinguishable from that of the aforesaid equivalent structure.
  • the connective structure by which yoke 200 depends from transmission tower insulators includes conformable linkages 220 and 222. As more fully appears from FIG. 9, wing-like appendages 224 and 226, of that part of linkage 220 that is integral with frame 202, project perpendicularly from the opposite side faces of the frames radial arm 208 and of its encircling rim 230.
  • An ear-like brace 232 which is formed as an integral part of rim 230 so as to project outwardly from the rim in line with radial arm 208, serves as a retainer plate for quadrants 214 and 216 when they are secured thereto.
  • a dual suspension arrangement provided for linkage 220 includes a pair of socket-clevis members 240 and 242 which have the socket ends thereof joined to transmission line ball-and-socket insulators 246 and 248, respectively.
  • Socket-clevis members 240 and 242 are situated, by a requisite disposition of the insulators .with which they are associated, where the bifurcated portions of such members overlie outlying portions 250 and 252 of appendages 224 and 226, respectively.
  • the socket-clevis members contain the aforesaid outlying portions loosely fitted therein, and an alignment of holes through these elements constitute passages wherein bolts are secured to provide requisite pivotal connections for suspending yoke 200. Exemplary of these connections is the attachment which FIGS.
  • suspension yoke embodiments illustrated in FIGS. 5 and 8 are readily adapted to depend from a power transmission tower by employing conventional I suspension arrangements having singular connective linkages between the yoke frame rims thereof and the tower insulators.
  • the inner rim would be formed with only one radial tongue, and in the configuration of FIG. 8, this rim would be formed with a single'pair of appendages for their junctures to the insulators.
  • the rim in the latter case would have a unitary retainer brace to coact with the facing ends of only two quadrants having singular circumferentially extended bar-like legs instead of radially oriented clevises.
  • a multiple conductors carrier in an electrical power transmission line including a multiplicity of conductors comprising an integrally formed inner support means of said carrier which is an integral circular structure having a continuous outer circumferential edge supporting thereon said conductors,
  • each said securing means includes a curved component having an edge conforming tothe circularity of said cirumferential edge and which is arranged to overlie said continuous outer edge and thereon, and has multiple members thereof connecting said securing means with said inner support means by at least two of said multiple members straddling portions of said circular structure, and said members and said portions coacting with fastening means operating to maintain said compo-' nents connectively associated with said circular structure,
  • said inner support means having recesses distributed along said continuous outer edge thereof, and each said securing means having thereon a distribution of further recesses, said recesses and said further recesses having openings arranged in an aligned facing relationship and forming an array of spaced apertures around said carrier, said apertures retaining therein, respectively, individual ones of said secured conductors,
  • a multiple conductors carrier in an electrical power transmission line including a multiplicity of conductors comprising anintegrally formed inner support means of said carrier having a continuous outer edge supporting thereon said conductors,
  • each said securing means being arranged to overlie said continuous outer edge and said conductors thereon, and having multiple members thereof connecting said securing means with said inner support means,
  • said inner support means having recesses distributed along said continuous outer edge thereof, and each said conductors said securing means having thereon a distribution of further recesses, said recesses and further recesses having openings arranged in an aligned facing relationship and forming an array of spaced apertures around said carrier, said apertures retaining therein, respectively, individual ones of said secured conductors, and each of said spaced apertures includes as an integral part thereof a parted cylindrical enclosure, each said enclosure containing a split electrically conductive bearing sleeve which is disposed to envelope said individual conductor retained by said aperture, and said inner support means and said securing means being of electrically conductive material whereby said multiple conductors constitute a multiple conductor bundle, and
  • a multiple conductors carrier in an electrical power transmission line including a multiplicity of conductors comprising an integrally formed planar element constituting an inner support means of said carrier having a continuous outer edge supporting thereon said conductors,
  • each said securing means being arranged to overlie said continuous outer edge and said conductors thereon, each said securing means comprising a plate having as integral parts thereof an outer tubular reenforcing element and multiple members connecting said securing means with said inner support means, said multiple members including at least two clevis connectors, each said clevis connector having legs thereof straddling said planar element, and said clevis and said planar element coacting with fastening means operating to maintain said securing means connectively associated with said inner support means,
  • said inner support means having recesses distributed along said continuous outer edge thereof, and each said securing means having thereon a distribution of further recesses, said recesses and said further recesses having openings arranged in an aligned facing relationship and forming an array of spaced apertures around said carrier, said apertures retaining therein, respectively, individual ones of said secured conductors, and
  • a multiple conductors carrier in an electrical power transmission line including a multiplicity of conductors comprising an integrally formed inner support means of said carrier having a continuous outer edge supporting thereon said conductors,
  • each said securing means being arranged to overlie said continuous outer edge and said conductors thereon, and having multiple members thereof connecting said securing means with said inner support means,
  • said inner support means having recesses distributed along said continuous outer edge thereof, and each said securing means having thereon a distribution of further recesses, said recesses and said further recesses having openings arranged in an aligned facing relationship and forming an array of spaced apertures aroundsaid carrier, said apertures retain ingtherein, respectively, individual ones of said secured conductors, and said inner support means being further characterized by a planar rim comprising said continuous outer edge and an inner edge having as an integral part thereof and at different portions thereon end portions of interconnected reenforcing arms, and said planar rim also' comprising as a further integral part projecting therefrom a connecting means, and
  • planar rim is a circular plate
  • said projecting connecting means includes a pair of radially extending flat bar elements disposed substantially apart along said continuous outer edge, and said linkage comprising bifurcated members depending separately from said insulator means, and each of said bar elements being separately disposed within a different one of said bifurcated members and flexibly coupled thereto.
  • planar rim is a circular plate and said reenforcing arms are radially disposed therein
  • said projecting connecting means comprises a pair of planar appendages individually extending laterally from different opposite planar surfaces of said rim and one of said radial reenforcing arms, and said linkage comprising a pair of bifurcated members depending separately from said insulator means, and each of said appendages being separately disposed within a different one of said bifurcated members and flexibly coupled thereto.
  • said projecting connecting means comprises a second pair of appendages disposed substantially apart from said first pair of appendages along said continuous outer edge, said appendages of said second pair thereof individually extending laterally from different opposite planar surfaces of said rim and other one of said radial reenforcing arms, and said linkage comprising a further pair of bifurcated members depending separately from said insulator means, and each of said appendages of said second pair thereof being separately disposed within a different one of said further pair of bifurcated members and flexibly coupled thereto.
  • planar rim further comprises on said continuous outer edge thereof a planar attachment ear extending radially therefrom in line with each of said one and other of said radial reenforcing arms, and a first and a second of said plurality of securing means having projecting end portions thereof which are separately disposed adjacent different opposite planar surfaces of one of said attachment ears, and fastening means securing said ear to said end portions adjacent thereto, and said first and a third of said plurality of securing means having further projecting end portions thereof which are separately disposed adjacent different opposite planar surfaces of said other of said attachment ears, and
  • each said conductor having a preformed rod conductive sleeve fitted over a conductive envelope on said conductor, said sleeve being maintained when gripped by said shoes to restrain said conductor in said aperture therefor, and said inner support means and said securing means being of electrically conductive material whereby said multiple conductors constitute a multiple conductor bundle.

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Abstract

Devices maintaining the structural integrity and stability of multiple conductor bundles of a high voltage transmission line are each constituted by a unitary circular member having a plurality of conforming members conjoined therewith in a connective relationship which faces openings of essentially semicylindrical complementary recesses therein so as to form an array of corresponding passages wherein the conductors of a bundle are maintained interconnected and thereby structurally supported in an expanded spatial disposition. Spaced, interjacent coacting portions of the respective members obtain the requisite alignment of the recesses, and facilitate the security of the assembly as its respective passages are adapted to have clamped therein individual conductors of the bundle. Embodiments of the assembly having a reinforced unitary member including extensions thereof for junctures to insulators facilitate connection of the conductor bundle to a transmission line tower.

Description

United States Patent 1 Winkelman June 12, 1973 MULTIPLE CONDUCTOR BUNDLE SUPPORT AND SPACER [75] Inventor: Paul F. Winkelman, Beaverton,
Oreg.
22 Filed: May3l, 1972 211 App]. No.: 258,143
[52] US. Cl 174/149 R, 174/40 R, 174/146, 248/63 [51] Int. Cl H02g 7/00 [58] Field of Search 174/40 R, 41, 43,
174/44, 45 R, 146, 148, 149 R, 150; 248/61, 63, 68 R [56] References Cited UNITED STATES PATENTS 282,489 8/1883 Breen 174/146 X 873,456 12/1907 Ottinger 174/149 R 1,498,898 6/1924 Young 174/146 X 1,544,436 6/1925 Easterday et a1. 174/149 R 3,240,870 3/1966 Harmon 174/149 R 3,249,773 5/1966 Barthold 174/149 R X 3,506,228 4/1970 Johnson 248/63 FOREIGN PATENTS OR APPLICATIONS 653,027 11/1962 Canada 174/146 53,420 1/1934 Norway 174/149 R Primary Examiner fl ai amie E. Askin Attorney- Ernest S. Cohen and Gersten Sadowsky [5 7] ABSTRACT Devices maintaining the structural integrity and stability of multiple conductor bundles of a high voltage transmission line are each constituted by a unitary circular member having a plurality of conforming members conjoined therewith in a connective relationship which faces openings of essentially semi-cylindrical complementary recesses therein so as to form an array of corresponding passages wherein the conductors of a bundle are maintained interconnected and thereby structurally supported in an expanded spatial disposition. Spaced, interjacent coacting portions of the respective members obtain the requisite alignment of the recesses, and facilitate the security of the assembly as its respective passages are adapted to have clamped therein individual conductors of the bundle. Embodiments of the assembly having a reinforced unitary member including extensions thereof for junctures to insulators facilitate connection of the conductor bundle to a transmission line tower.
9 Claims, 9 Drawing Figures 2/1959 France 174/149 R PATENIEDJIIM 21ers sum 3 or 3 w I nna MULTIPLE CONDUCTOR BUNDLE SUPPORT AND SPACER This invention relates to improvements in a cable spacer and support, and more specifically it is directed to improved devices wherein the subconductor cables of a multiple conductor bundle are maintained in a spatial disposition which enables transmission through such bundle of ultrahigh voltage, particularly 1000 kv and higher. Characteristic of such devices are their adaptability to facilitate use of as many subconductor cables as is required for each of the separate phases of the power transmitted. Conventional attachments to applicable structure of such devices allows further a proper disposition of the phased conductor bundles in a suitable arrangement for dependence from the suspension strings of power transmission line towers.
Cable support structures of the type disclosed herein have heretofore been used primarily as a carrier and spacer or spreader for power transmission lines having only three or four conductors whereof respective ones of three conductors carry the separate phases of the power transmitted, and a fourth conductor oridinarily functions as a messenger, or a catenary support wire. In a conventional form of this structure each conductor is secured in a separate clamping device by one or two bolts,-or preformed rods. Increasing the number of subconductor cables constituting a bundle in adaptions of prior arrangements renders them cumbersome, and possibly undesirable due to the multiplicity of bolt connections required that are subject to loosening from poor torquing or with time. Exemplary of a bolted clamp construction is the conductor spacer disclosed in US. Pat. No. 3,475,544, granted Oct. 28, 1969, to A. J. Reed. Typical of other prior art constructions are the arrangements disclosed in US. Pat. No. 2,928,636, issued Mar. 15, 1960, to A. T. Flower, in US. Pat. No. 3,005,609, issued Oct. 24, 1961, to E. J. Joffe, and US. Pat. No. 3,055,623, issued Sept. 25, 1962, to S. P. Becker. Each of these patented structures includes a pair of members within which conductor cables are secured in a requisite spatial relationship when these securing members are either pivoted or shifted with respect to each other to act as a clamp upon the cables when they are placed in generally conforming openings defined by specially formed portions of the members. However, these members usually have predetermined characteristic structural configurations necessitated by the particular utilization wherein they secure no more than three or four cables, and as a result their forms are generally restricted to the singular application for which they are fitted. On the other hand, a multiple conductor bundle according to the present invention has its basis in a uniquely adaptable configuration which is readily expandable for devices having utility in securing conductor bundles accommodating a large number of subconductors. Thus conductor bundles structured as disclosed herein are especially applicable to support the multiplicity of conductors that are used in implementing power supply in any one phase of ultrahigh voltage transmission.
Conventional limitations. upon the number of sub conductors that can be normally held by any individual support structure do not apply to the present invention where the circular shapes of all major securing components comprehend a teaching of extensive enlargements for accommodating subconductors in great'numbers. Moreover, individual conductor bundles of the embodiments of the invention disclosed herein have utility separately in the different phases of the electrical lines in that each bundle conductively ties together a number of phase related subconductors. In particular, separate subconductors are individually clamped in circumferencially distributed openings formed by portions of circular members made of electrically conductive material. A multiplicity of such circular structures have utility along the transmission line at predetermined distances from the supporting towers and at points thereat for suspending the line therefrom.
It is thus an object of the present invention to provide cable spacing and suspension supports for multiple conductor bundles of electrical transmission lines. 7
A further objective of the invention is to provide a cable support construction having applicability to conductor bundles of different multiplicities of subconductors.
These and other objects and advantages of the present invention will become more fully apparent from the following detailed description of the invention set forth herein and from the accompanying drawing made a part hereof in which:
FIG. 1 is a general perspective view of one embodiment of the present invention illustrating its adaptation as a spacer for a multiple conductor bundle;
FIG. 2 is a sectional view of part of the invention taken on line 2-2 of FIG. 1, revealing details of structure facilitating assembly thereof;
FIG. 3 is a fragmentary showing of the spacer of FIG. 1, providing an elevational view of conductor retaining structure thereof;
FIG. 4 is a sectional view of part of the invention taken on line 4-4 of FIG. 3, providing a further view of the retaining structure;
FIG. 5 is a front elevational view of a further embodiment of the present invention having particular utility as a suspension yoke for a multiple conductor bundle;
FIG. 6 is a sectional view of part of the invention taken on line 6-6 of FIG. 5, revealing details of a conductor retaining structure thereof;
FIG. 7 is a sectional view of part of the suspension yoke embodiment of FIG. 5, taken on line 7-7 therein, revealing details of keying and securing structure thereof;
FIG. 8 is a fragmentary showing providing a front elevational view of part of a still further embodiment of the present invention having particular utility as a suspension yoke for a multiple conductor bundle; and
FIG. 9 is a sectional view of part of the suspension yoke embodiment of FIG. 8, taken on line 9-9 therein, revealing details of keying and securing structure thereof.
The form of the present invention disclosed herein with reference to FIGS. 1 to 4 features a relatively large circular composite conductor spacer 10 which is characterized by an inner annulus 12 around whose outer periphery are positioned a set of prefabricated quadrants 14, 16, 18, and 20, forming a segmented collar about the annulus. These quadrants are retractable parts in a clamping arrangement provided for securing in spacer 10 a conductor bundle B so as to maintain the respective conductors Cof the bundle fastened at requisite locations about the spacer. As more fully appears in FIG. 1, the individual quadrants are alike with respect to their structural form, and each is made applicable in substantially the same manner to constrain a number of conductors C in the predisposed, spaced circular arrangement shown in the figure. A closer examination of quadrant 14, as exemplary of the other of such quadrants, makes evident a unitary construction 'therefor wherein a round pipe 22 curved approximately 90 degrees has been made integral with a correspondingly curved relatively narrow plate 24 by attachment, with welds or the like, between the curved outer peripheral edge of the plate and a curvilinear strip on a concaved surface of the pipe. Openings at the ends of pipe 22 are sealed by hemispherical caps 26 and 28 to provide the aforesaid clamping arrangement with components having a rigid construction made weather resistant by their continuous external surfaces. However, it should now also be obvious that the respective outer quadrants 14, 16, 18, and 20, can be produced as castings in a conventional manner which would permit a more steamlined integration of components than for the welded embodiment illustrated herein.
Quadrant 14 additionally carries a set of clevis connectors 30 and 32. Each such connector, as exemplified by the showing of connector 32 in FIG. 2, is in part constituted by a pair of short bars 34 and 36, which are maintained apart, facing in alignment, by attachment to the opposite sides of plate 24, by welds or the like, at separated areas of strength between the respective ends of the quadrant. Also as may be seen by reference to FIGS. 1 and 2, bars 34 and 36 of connector 32 are spaced in parallel, and extend radially past the inner peripheral edge of plate 24. The inner facing surfaces of the bars extensions are undercut slightly to provide a widened open passage 38 therebetween. Annulus 12 is essentially a unitary ring of plate material which is characterized by a generally uniform radial width, and an axial breadth closely approximating the breadth of quadrant plate 24. Thus connector passage 38, and a passage corresponding thereto defined by extended bars of connector 30 are suitably structured and disposed to receive therein cross-sectional portions of annulus 12 when quadrant 14 is properly placed for assembly to the annulus. The assembly is subsequently made fast by keepers, such as bolt or pin 40 shown in FIG. 2, which extend through axially aligned openings in the connector bar extensions and holes through annulus 12 disposed to mate with the aforesaid openings in the connector parts. Application of a suitable cotter pin 42 to secure bolt or pin 40 in the usual manner, is duplicated for all other such keepers.
Reference now to FIGS. 3 and 4 in connection with FIG. 1, discloses that each conductor C is retained at a predetermined location within the circularity of spacer by a fitting F. Each such fitting is a split structure including a first part made integral with annulus 12 in a generally semi-circular recess thereof, and a matching second part made integral with an associated quadrant in a corresponding generally semicircular recess thereof. These recesses are uniformly arrayed around annulus l2 within the outer peripheral edge thereof and the inner peripheral edges of quadrants l4, 16, 18, and 20, such that individual recesses of the annulus are paired respectively with quadrant recessesto form by alignment of their facing openings a circular array of split circular apertures A. Thus, a split structure of an exemplary fitting F which is accommodated in an aperture A appears in FIGS. 3 and 4 as having its matching parts symmetrically arranged in annulus l2 and quadrant 14, respectively. In the facing recesses of this aperture A are separately fitted generally semicylindrical, retainer shells 50 and 52, which when affixed in place, by welds or the like, constitute a split bearing collar 54. As'is more clearly shown in FIG. 4, collar 54 is placed so as to constitute raised ridges extending generally symmetrically from the planar surfaces of the 0pposite sides of annulus 12-and quadrant plate 24 when conformed in spacer l0. Bonded to the respective inner surfaces of retainer shells 50 and 52 are separable semicylindrical bushing halves 56 and 58 of a bearing sleeve 60 whose length matches that of its supporting collar 54. Sleeve 60 provides in a central passage 62 thereof a gripping surface which restrains a conductor C.
Electrically conductive materials are used throughout in the fabrication of spacer 10 so as to constitute conductors C maintained therein a conjoint conductive path for conductor bundle B. Aluminum plate, pipe, and bar are particularly suitable when used as indicated herein for the several structural elements of spacer 10, with the exceptions of the quadrant securing bolts or pins and cotter pins which are normally made of hardened galvanized steel and stainless steel, respectively, and the bushing halves of the conductor gripping bearing sleeves for which a thick conducting Neoprene is particularly appropriate. An exemplary form of such Neoprene has a DC. volume resistivity at 20C of not more than 600,000 ohm-cm, and a Durometer hardness of 60. As is evident from the disclosure so far, the structural arrangement exemplified by the embodiment of the invention shown in FIGS. 1 to 4 is most advantageously employed as a conductor spacer for multiple conductor bundles. Nevertheless, when insulation materials are used for the bearing fittings in one or several apertures of the aforesaid arrangement, so as to conductively isolate catenary cables or support rods which are made secure in such apertures, a broadly applicable conductor supporting spacer also becomes available in accordance with the present invention as shown in FIGS. 1 to 4.
Embodiments of the suspension yoke according-to the present invention, as they appear in FIGS. 5 to 9,
correspond to bundle spacer 10 to the extent that they I are all characterized by an assembly of circular and sectored components. However, the yokes disclosed herein are distinguished by a reinforcing construction, and further connective portions with which transmission line insulator suspending arms are adapted to be engaged. An arrangement for one such V-type suspension yoke appears in FIGS. 5 to 7 where a yoke is shown structured about an inner circular frame 72 having arms 74, 76, 78 and 80 which are uniformly disposed to radiate from a central mass thereof to a ringlike outer peripheral rim 82. This spatial disposition of the arms, which strengthens and adds rigidity to frame 72, also apportions this circular frame between succeeding ones of its arms into four sectors. Superposed on the rim section of each such sector is a quadrant member which functions in its connective association with frame 72 to retain within the peripheral edge of frame rim 82 four of the multiple conductors of bundle B, in amanner to be hereinafter more fully explained. Four rim sections 86, 88, 90 and 92 are shown in FIG. 5 as having assembled therewith quadrants 94, 96, 98 and 100, respectively. Referring particularly to the assembly at rim section 86, for an example of the arrangement at the other such sections, reveals that in the outer peripheral edge of section 86 are formed four uniformly spaced semicircular recesses 102, 104, 106, and 108. A similar arrangement of semicircular recesses 110, 112, 114 and 116, which are fashioned in the inner peripheral edge of associated quadrant 94, have openings therein adapted to confront correspondingly situated openings at the frame rim recesses when the quadrant is appropriately located by way of its attachment to rim section 86. The frame and quadrant recesses are by this means paired to obtain an alignment of their axial passages giving rise to a set of uniformly spaced parted apertures, each of which is adapted to securely maintain therein a conductor grip fitting to be hereinafter more fully explained.
Facilitating the requisite attachment of the quadrants separately to frame 72 are a circular array of clevis connectors which project radially toward a center from the inner peripheral edges of the respective quadrants. An assembly of the quadrants with frame 72 locates spaced portions of frame rim 82 within a circular array of passages provided by aligned channels fashioned by the paired legs of individual clevis connectors. Holes in these legs thus axially aligned with matching holes in rim 82 are equipped with headed bolts or pins which engage these mated holes, and are thereafter secured in position by cotter pins in a conventional manner. The clevis connectors applicable herein more particularly appear from reference to FIGS. 5, 6 and 7, illustrating the attachments for assembling quadrants 94 and 98 to their apposite sections of frame 72, which are exemplary of the other such attachments. Formed at the extended ends of quadrant 94 are radially disposed clevis connectors 120 and 122, respectively, which bracket further radial connectors 124, 126, and 128, uniformly spaced between them. As is evident from FIGS. 6 and 7, the quadrants have a semicircular outer ridge portion and generally flat parallel sides from which the paired legs of the clevis connectors project to overlap the parallel sides of frame rim 82. Thus, clevis connector 128, appearing in FIG. 6, provides legs 130 and 132 between which frame rim section 86 is pinned by a bolt 134, as was previously explained. To be seen in FIG. 7 is a clevis connector 136 at one extended end of quadrant 98. This end connector, which is exemplary of the other such end clevis connectors, provides slightly longer, partially rounded legs 138 and 140 forming a channel 142 in which frame rim section 90 is fastened by a bolt 144.
Exemplary of the aforementioned parted apertures which are formed when attachments between the quadrants and frame 72 are made so as to align recess passages in these members, is an aperture 150 arising from alignment of recesses 106 and 114 in frame rim section 86 and quadrant 94, respectively, as shown in FIGS. 5 and 6. Raised flanges or bosses which edge the respective rims of recesses 106 and 114 provide theipassages thereof with broadened bearing surfaces 152 and 154 for better maintaining in aperture 150 a conductor grip fitting 156, as was heretofore indicated. A preferred form of this fitting is a reinforced armored rod conductor grip such'as disclosed in U.S. Pat. No. 2,722,393, granted Nov. 1, 1955, to T. F. Peterson. As more fully illustrated in FIG. 6, fitting 156 includes a set of helically preformed rods, which when assembled on conductor C constitute a bulging sleeve 158 thereon, and a pair of semicylindrical bearing shoes 160 and 162 which are adapted to grip sleeve 158 and lock it to surfaces 152 and 154 when they are drawn together to form aperture 150. However, initially the gripped section of conductor C is enveloped by a pair of complementary protuberating semicylindrical sheaths 164 and 166, which have conductor accommodating recesses therein, and are adapted to underlie the rods forming sleeve 158 at the bulge thereof. These sheaths are advantageously made of the conductive Neoprene disclosed for use in the bearing sleeves of the FIGS. 1 to 4 embodiment herein wherefore they also constitute conductive links between the multiple conductors C by way of conductive material, such as aluminum, used for the major structural members of yoke 70. When bearing shoes and 162 have been drawn together, as in the assembly shown in FIG. 6, relieved portions centrally situated in the outer cylindrical surfaces thereof provide channels symmetrically disposed with respect to the parting line of the assembly in which bearing surfaces 152 and 154 of aperture 150 lie incontact with matching channel surfaces. Also as appears from the view in FIG. 6, the attachment of quadrant 94 to the recessed outer edge of frame rim section 86, when fitting 156 is positioned therebetween for coupling the conductor C it carries, effectuates a compression of the bulge in sleeve 158 between slightly flared, cylindrical surfaces of the central passage of the fitting which affords a measure of flexibility in the grip of conductor C by yoke 70.
The V-type suspension structure illustrated in FIG. 5 is arranged symmetrically about a vertical diametrical plane of circular conductor bundle yoke 70 to properly maintain this yoke within a transmission line by providing connections therefrom to a transmission line tower. This connective structure includes conformable linkages and 172 which attach inner frame 72 of the yoke to standard line insulator components 174 and 176, respectively, of the ball-and-socket type which is indicated in FIGS. 7 and 8, and more fully disclosed on pages 1215 and 1216 of the Standard Handbook for Electrical Engineers, edited by A. E. Knowlton, published by McGraw-Hill Book Co., Inc., New York, Ninth Edition (1957). As more fully appears from FIGS. 5 and 7, linkage 170 pivotally joins a clevis member depended from insulator component 174 to a tongue 182 which is an integral part of frame rim 82. More particularly, tongue 182 projects outwardly from frame 72 in line with radial arm 78 of the frame, and beyond the outer periphery of yoke 70 in traversing enlarged channels within clevis connectors at the facing ends of quadrants 96 and 98. Tongue 182 is in effect a bar-like suspension arm which is loosely received between legs 184 and 186 and socket-clevis member 180, and maintained dependent therefrom by a hexagonal bolt 188 whose shank extends through axially aligned holes in the legs and tongue. Bolt 188 is secured to clevis member 180 by a nut 190 and cotter pin in a conventional manner. As was previously indicated, linkage 172 is correspondingly constituted by a tongue 192, projecting from frame 72, which, by its connection within a socket-clevis member 194 depended from insulator component 176, functions as a further suspension arm for yoke 70.
The second embodiment of a V-type suspension structure according to the present invention is characterized by multiple attachments from each connective linkage of a multiple conductor bundle suspension yoke to transmission tower insulator components. In FIGS. 8 and 9 a yoke 200 of this embodiment is shown 7 as having an inner circular frame 202 including four evenly spaced radial arms 204, 206, 208 and 210, and quadrant members 212, 214, 216, and 218 arranged about the outer peripheral edge of the frame so as to complement the sectors defined between the aforesaid radial arms. An assembly of yoke 200 obtained by a circular distribution of clevis connectors therein operates to keep multiple conductors C of a conductor bundle secured in conductor grip fittings maintained within re- 1 cesses forming apertures of the yoke in effectively the same manner as that previously disclosed with respect to the first embodiment of the yoke appearing in FIGS. 5 to '7. However, only the form of quadrant 218 fully corresponds to the equivalent structure in the first embodiment, since for the requirements of the second embodiment, to be hereinafter more fully explained, quadrants 212 and 216 at one end and quadrant 214 at both ends have a configuration which is distinguishable from that of the aforesaid equivalent structure.
The connective structure by which yoke 200 depends from transmission tower insulators includes conformable linkages 220 and 222. As more fully appears from FIG. 9, wing- like appendages 224 and 226, of that part of linkage 220 that is integral with frame 202, project perpendicularly from the opposite side faces of the frames radial arm 208 and of its encircling rim 230. An ear-like brace 232 which is formed as an integral part of rim 230 so as to project outwardly from the rim in line with radial arm 208, serves as a retainer plate for quadrants 214 and 216 when they are secured thereto. Replacing the usual extended clevis connectors on the facing ends of quadrants 214 and 216 are reduced sections thereof which are circumferentially extended to form oppositely disposed, singular bar- like legs 234 and 236 on the respective quadrants. Thus, in the completed assembly of yoke 200 legs 234 and 236 have been positioned on the opposite sides of brace 232 where suitable holes in these legs are mated with a hole in brace 232 so as to define a passage through these parts to which a pin 238 is introduced and secured by a cotter pin. A dual suspension arrangement provided for linkage 220 includes a pair of socket- clevis members 240 and 242 which have the socket ends thereof joined to transmission line ball-and- socket insulators 246 and 248, respectively. Socket- clevis members 240 and 242 are situated, by a requisite disposition of the insulators .with which they are associated, where the bifurcated portions of such members overlie outlying portions 250 and 252 of appendages 224 and 226, respectively. Thus arranged, the socket-clevis members contain the aforesaid outlying portions loosely fitted therein, and an alignment of holes through these elements constitute passages wherein bolts are secured to provide requisite pivotal connections for suspending yoke 200. Exemplary of these connections is the attachment which FIGS. 8 and 9 shows wherein legs 254 and 256 of socket-clevis member 240 are maintained in overlapping relationship with portion 250 of appendage 224 by a bolt 258 secured by a nut 260 and a cotter pin. For a coordinated action with linkage 220 which maintains yoke 200 requisitely suspended from a power line transmission tower, the structural form and functional attributes of linkage 222 are fully mirrored in that which was previously disclosed as characterizing linkage 220. Accordingly, yoke 200 is suspended by connections to its frame 202 from a symmetrical arrangement of four insulator strings.
Other modifications and variations in the details of the present invention are possible in light of the disclosure herein. For example, the suspension yoke embodiments illustrated in FIGS. 5 and 8 are readily adapted to depend from a power transmission tower by employing conventional I suspension arrangements having singular connective linkages between the yoke frame rims thereof and the tower insulators. Thus, in the configuration of FIG.:5, the inner rim would be formed with only one radial tongue, and in the configuration of FIG. 8, this rim would be formed with a single'pair of appendages for their junctures to the insulators. In addition, the rim in the latter case would have a unitary retainer brace to coact with the facing ends of only two quadrants having singular circumferentially extended bar-like legs instead of radially oriented clevises. it is therefore to be understood that within the scope of the appended claims the invention may be practiced otherwise than as specifically described.
I claim: I
l. A multiple conductors carrier in an electrical power transmission line including a multiplicity of conductors comprising an integrally formed inner support means of said carrier which is an integral circular structure having a continuous outer circumferential edge supporting thereon said conductors,
a plurality of means securing said conductors to said inner support means wherein each said securing means includes a curved component having an edge conforming tothe circularity of said cirumferential edge and which is arranged to overlie said continuous outer edge and thereon, and has multiple members thereof connecting said securing means with said inner support means by at least two of said multiple members straddling portions of said circular structure, and said members and said portions coacting with fastening means operating to maintain said compo-' nents connectively associated with said circular structure,
said inner support means having recesses distributed along said continuous outer edge thereof, and each said securing means having thereon a distribution of further recesses, said recesses and said further recesses having openings arranged in an aligned facing relationship and forming an array of spaced apertures around said carrier, said apertures retaining therein, respectively, individual ones of said secured conductors,
and means restraining said carrier at a predetermined disposition thereof, including connections therewith from said inner support means.
2. A multiple conductors carrier in an electrical power transmission line including a multiplicity of conductors comprising anintegrally formed inner support means of said carrier having a continuous outer edge supporting thereon said conductors,
a plurality of means securing said conductors to said inner support means, each said securing means being arranged to overlie said continuous outer edge and said conductors thereon, and having multiple members thereof connecting said securing means with said inner support means,
said inner support means having recesses distributed along said continuous outer edge thereof, and each said conductors said securing means having thereon a distribution of further recesses, said recesses and further recesses having openings arranged in an aligned facing relationship and forming an array of spaced apertures around said carrier, said apertures retaining therein, respectively, individual ones of said secured conductors, and each of said spaced apertures includes as an integral part thereof a parted cylindrical enclosure, each said enclosure containing a split electrically conductive bearing sleeve which is disposed to envelope said individual conductor retained by said aperture, and said inner support means and said securing means being of electrically conductive material whereby said multiple conductors constitute a multiple conductor bundle, and
means restraining said carrier at a predetermined disposition thereof, including connections therewith from said inner support means.
3. A multiple conductors carrier in an electrical power transmission line including a multiplicity of conductors comprising an integrally formed planar element constituting an inner support means of said carrier having a continuous outer edge supporting thereon said conductors,
a plurality of means securing said conductors to said inner support means, each said securing means being arranged to overlie said continuous outer edge and said conductors thereon, each said securing means comprising a plate having as integral parts thereof an outer tubular reenforcing element and multiple members connecting said securing means with said inner support means, said multiple members including at least two clevis connectors, each said clevis connector having legs thereof straddling said planar element, and said clevis and said planar element coacting with fastening means operating to maintain said securing means connectively associated with said inner support means,
said inner support means having recesses distributed along said continuous outer edge thereof, and each said securing means having thereon a distribution of further recesses, said recesses and said further recesses having openings arranged in an aligned facing relationship and forming an array of spaced apertures around said carrier, said apertures retaining therein, respectively, individual ones of said secured conductors, and
means restraining said carrier at a predetermined disposition thereof, including connections therewith from said inner support means.
4. A multiple conductors carrier in an electrical power transmission line including a multiplicity of conductors comprising an integrally formed inner support means of said carrier having a continuous outer edge supporting thereon said conductors,
a plurality of means securing said conductors to said inner support means, each said securing means being arranged to overlie said continuous outer edge and said conductors thereon, and having multiple members thereof connecting said securing means with said inner support means,
said inner support means having recesses distributed along said continuous outer edge thereof, and each said securing means having thereon a distribution of further recesses, said recesses and said further recesses having openings arranged in an aligned facing relationship and forming an array of spaced apertures aroundsaid carrier, said apertures retain ingtherein, respectively, individual ones of said secured conductors, and said inner support means being further characterized by a planar rim comprising said continuous outer edge and an inner edge having as an integral part thereof and at different portions thereon end portions of interconnected reenforcing arms, and said planar rim also' comprising as a further integral part projecting therefrom a connecting means, and
means restraining said carrier at a predetermined disposition thereof, including connections therewith from said inner support means having a linkage coupled to said projecting connecting means and affixed to electrical insulator means suspended from said powertransmission line.
5. The multiple conductors carrier of claim 4, wherein said planar rim is a circular plate, and said projecting connecting means includes a pair of radially extending flat bar elements disposed substantially apart along said continuous outer edge, and said linkage comprising bifurcated members depending separately from said insulator means, and each of said bar elements being separately disposed within a different one of said bifurcated members and flexibly coupled thereto.
6. The multiple conductors carrier of claim 4 wherein said planar rim is a circular plate and said reenforcing arms are radially disposed therein, and said projecting connecting means comprises a pair of planar appendages individually extending laterally from different opposite planar surfaces of said rim and one of said radial reenforcing arms, and said linkage comprising a pair of bifurcated members depending separately from said insulator means, and each of said appendages being separately disposed within a different one of said bifurcated members and flexibly coupled thereto.
7. The multiple conductors carrier of claim 6 wherein said projecting connecting means comprises a second pair of appendages disposed substantially apart from said first pair of appendages along said continuous outer edge, said appendages of said second pair thereof individually extending laterally from different opposite planar surfaces of said rim and other one of said radial reenforcing arms, and said linkage comprising a further pair of bifurcated members depending separately from said insulator means, and each of said appendages of said second pair thereof being separately disposed within a different one of said further pair of bifurcated members and flexibly coupled thereto.
8. The multiple conductors carrier of claim 7 wherein said planar rim further comprises on said continuous outer edge thereof a planar attachment ear extending radially therefrom in line with each of said one and other of said radial reenforcing arms, and a first and a second of said plurality of securing means having projecting end portions thereof which are separately disposed adjacent different opposite planar surfaces of one of said attachment ears, and fastening means securing said ear to said end portions adjacent thereto, and said first and a third of said plurality of securing means having further projecting end portions thereof which are separately disposed adjacent different opposite planar surfaces of said other of said attachment ears, and
12 said aperture, each said conductor having a preformed rod conductive sleeve fitted over a conductive envelope on said conductor, said sleeve being maintained when gripped by said shoes to restrain said conductor in said aperture therefor, and said inner support means and said securing means being of electrically conductive material whereby said multiple conductors constitute a multiple conductor bundle.
l It

Claims (9)

1. A multiple conductors carrier in an electrical power transmission line including a multiplicity of conductors comprising an integrally formed inner support means of said carrier which is an integral circular structure having a continuous outer circumferential edge supporting thereon said conductors, a plurality of means securing said conductors to said inner support meaNs wherein each said securing means includes a curved component having an edge conforming to the circularity of said cirumferential edge and which is arranged to overlie said continuous outer edge and said conductors thereon, and has multiple members thereof connecting said securing means with said inner support means by at least two of said multiple members straddling portions of said circular structure, and said members and said portions coacting with fastening means operating to maintain said components connectively associated with said circular structure, said inner support means having recesses distributed along said continuous outer edge thereof, and each said securing means having thereon a distribution of further recesses, said recesses and said further recesses having openings arranged in an aligned facing relationship and forming an array of spaced apertures around said carrier, said apertures retaining therein, respectively, individual ones of said secured conductors, and means restraining said carrier at a predetermined disposition thereof, including connections therewith from said inner support means.
2. A multiple conductors carrier in an electrical power transmission line including a multiplicity of conductors comprising an integrally formed inner support means of said carrier having a continuous outer edge supporting thereon said conductors, a plurality of means securing said conductors to said inner support means, each said securing means being arranged to overlie said continuous outer edge and said conductors thereon, and having multiple members thereof connecting said securing means with said inner support means, said inner support means having recesses distributed along said continuous outer edge thereof, and each said securing means having thereon a distribution of further recesses, said recesses and further recesses having openings arranged in an aligned facing relationship and forming an array of spaced apertures around said carrier, said apertures retaining therein, respectively, individual ones of said secured conductors, and each of said spaced apertures includes as an integral part thereof a parted cylindrical enclosure, each said enclosure containing a split electrically conductive bearing sleeve which is disposed to envelope said individual conductor retained by said aperture, and said inner support means and said securing means being of electrically conductive material whereby said multiple conductors constitute a multiple conductor bundle, and means restraining said carrier at a predetermined disposition thereof, including connections therewith from said inner support means.
3. A multiple conductors carrier in an electrical power transmission line including a multiplicity of conductors comprising an integrally formed planar element constituting an inner support means of said carrier having a continuous outer edge supporting thereon said conductors, a plurality of means securing said conductors to said inner support means, each said securing means being arranged to overlie said continuous outer edge and said conductors thereon, each said securing means comprising a plate having as integral parts thereof an outer tubular reenforcing element and multiple members connecting said securing means with said inner support means, said multiple members including at least two clevis connectors, each said clevis connector having legs thereof straddling said planar element, and said clevis and said planar element coacting with fastening means operating to maintain said securing means connectively associated with said inner support means, said inner support means having recesses distributed along said continuous outer edge thereof, and each said securing means having thereon a distribution of further recesses, said recesses and said further recesses having openings arranged in an aligned facing relationship and forming an array of spaced apertures around said carrier, said apertures retaining therein, respectively, Individual ones of said secured conductors, and means restraining said carrier at a predetermined disposition thereof, including connections therewith from said inner support means.
4. A multiple conductors carrier in an electrical power transmission line including a multiplicity of conductors comprising an integrally formed inner support means of said carrier having a continuous outer edge supporting thereon said conductors, a plurality of means securing said conductors to said inner support means, each said securing means being arranged to overlie said continuous outer edge and said conductors thereon, and having multiple members thereof connecting said securing means with said inner support means, said inner support means having recesses distributed along said continuous outer edge thereof, and each said securing means having thereon a distribution of further recesses, said recesses and said further recesses having openings arranged in an aligned facing relationship and forming an array of spaced apertures around said carrier, said apertures retaining therein, respectively, individual ones of said secured conductors, and said inner support means being further characterized by a planar rim comprising said continuous outer edge and an inner edge having as an integral part thereof and at different portions thereon end portions of interconnected reenforcing arms, and said planar rim also comprising as a further integral part projecting therefrom a connecting means, and means restraining said carrier at a predetermined disposition thereof, including connections therewith from said inner support means having a linkage coupled to said projecting connecting means and affixed to electrical insulator means suspended from said power transmission line.
5. The multiple conductors carrier of claim 4, wherein said planar rim is a circular plate, and said projecting connecting means includes a pair of radially extending flat bar elements disposed substantially apart along said continuous outer edge, and said linkage comprising bifurcated members depending separately from said insulator means, and each of said bar elements being separately disposed within a different one of said bifurcated members and flexibly coupled thereto.
6. The multiple conductors carrier of claim 4 wherein said planar rim is a circular plate and said reenforcing arms are radially disposed therein, and said projecting connecting means comprises a pair of planar appendages individually extending laterally from different opposite planar surfaces of said rim and one of said radial reenforcing arms, and said linkage comprising a pair of bifurcated members depending separately from said insulator means, and each of said appendages being separately disposed within a different one of said bifurcated members and flexibly coupled thereto.
7. The multiple conductors carrier of claim 6 wherein said projecting connecting means comprises a second pair of appendages disposed substantially apart from said first pair of appendages along said continuous outer edge, said appendages of said second pair thereof individually extending laterally from different opposite planar surfaces of said rim and other one of said radial reenforcing arms, and said linkage comprising a further pair of bifurcated members depending separately from said insulator means, and each of said appendages of said second pair thereof being separately disposed within a different one of said further pair of bifurcated members and flexibly coupled thereto.
8. The multiple conductors carrier of claim 7 wherein said planar rim further comprises on said continuous outer edge thereof a planar attachment ear extending radially therefrom in line with each of said one and other of said radial reenforcing arms, and a first and a second of said plurality of securing means having projecting end portions thereof which are separately disposed adjacent different opposite planar surfaces of one of said attachment ears, and fastening means securing said ear to said end portions adjacent thereto, and said first and a third of said plurality of securing means having further projecting end portions thereof which are separately disposed adjacent different opposite planar surfaces of said other of said attachment ears, and further fastening means securing said other of said ears to said further end portions adjacent thereto.
9. The multiple conductors carrier of claim 4 wherein each of said spaced apertures includes as an integral part thereof raised edges which constitute said apertures extended supports for said conductors, each of said extended supports containing electrically semicylindrical shoes into which are fitted surfaces of said extended supports, such that said shoes constitute a gripping means for said individual conductor retained by said aperture, each said conductor having a preformed rod conductive sleeve fitted over a conductive envelope on said conductor, said sleeve being maintained when gripped by said shoes to restrain said conductor in said aperture therefor, and said inner support means and said securing means being of electrically conductive material whereby said multiple conductors constitute a multiple conductor bundle.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4715571A (en) * 1984-12-13 1987-12-29 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Device for securing a plurality of electrical conductors or cables
US6027082A (en) * 1998-11-03 2000-02-22 Cai Unit, Inc. Convertible electric utility cross arm insulator unit
US20070012480A1 (en) * 2005-07-13 2007-01-18 1568519 Ontario Limited Cable organizer
WO2011112874A1 (en) * 2010-03-10 2011-09-15 Maclean Power, Llc Yoke and insulating assembly
US20120024595A1 (en) * 2010-07-29 2012-02-02 Rainer Even Attachment system for cables, in particular for wind turbines
US20130233597A1 (en) * 2012-03-12 2013-09-12 Robert R. Suiter Wiring dressing rings
CN109638750A (en) * 2018-12-26 2019-04-16 李涵 A kind of safety power transmission route
US20220255307A1 (en) * 2020-07-10 2022-08-11 Marmon Utility Llc Aerial cable spacer insulator

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4715571A (en) * 1984-12-13 1987-12-29 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Device for securing a plurality of electrical conductors or cables
US6027082A (en) * 1998-11-03 2000-02-22 Cai Unit, Inc. Convertible electric utility cross arm insulator unit
US20070012480A1 (en) * 2005-07-13 2007-01-18 1568519 Ontario Limited Cable organizer
US7517118B2 (en) 2005-07-13 2009-04-14 1568519 Ontario Limited Cable organizer
WO2011112874A1 (en) * 2010-03-10 2011-09-15 Maclean Power, Llc Yoke and insulating assembly
US8664544B2 (en) * 2010-07-29 2014-03-04 Hydac Accessories Gmbh Attachment system for cables, in particular for wind turbines
US20120024595A1 (en) * 2010-07-29 2012-02-02 Rainer Even Attachment system for cables, in particular for wind turbines
US20130233597A1 (en) * 2012-03-12 2013-09-12 Robert R. Suiter Wiring dressing rings
CN109638750A (en) * 2018-12-26 2019-04-16 李涵 A kind of safety power transmission route
CN109638750B (en) * 2018-12-26 2020-12-22 安徽合宇天成建设工程有限公司 Safe transmission line
US20220255307A1 (en) * 2020-07-10 2022-08-11 Marmon Utility Llc Aerial cable spacer insulator
US11482847B2 (en) * 2020-07-10 2022-10-25 Marmon Utility Llc Aerial cable spacer insulator
US11502494B2 (en) * 2020-07-10 2022-11-15 Marmon Utility Llc Aerial cable spacer insulator

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