• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    N-polar cable formed by n bare unipolar conductors (1) and their accessories: suspension clamp (2), lashing clamp (3) and external terminal (4), of the type that incorporate a plurality of conductors used for build electrical lines, which basically consists of: - N-conductors (11a, 11b, 11c) naked; - an insulation (13) of cylindrical geometry provided with N-housings (12a, 12b, 12c), whose function is to maintain the electrical insulation between the different conductors (11a, 11b, 11c) since these are bare and have a outer cover (16) for external protection; - a resistant insulating (10) or conductive core (10 ') whose function is to withstand the mechanical tensile tension necessary to support the cable (1); - a plurality of straight insulating fins (14) and curved insulating fins (15), whose function is to increase the line of flight and the protection of birds. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2548631A1
    申请号:ES201500397
    申请日:2015-05-21
    公开日:2015-10-19
    发明作者:Juan Carlos Sáenz-Díez Muro；Emilio Jiménez Macías；Julio Blanco Fernández；Eduardo MARTÍNEZ CÁMARA；María Mercedes PÉREZ DE LA PARTE；Juan Manuel Blanco Barrero
    申请人:Universidad de La Rioja；
    IPC主号:
    专利说明:

    N-polar cable formed by n bare unipolar conductors and their accessories.
    5 Object and sector of the technique to which the invention refers
    The present invention relates to an electric cable (1) and accessories: a clip
    suspension (2), a tie-down clamp (3) and an external end (4).
    The object of the invention is a cable and its accessories for high voltage electrical cables of the type insulated unipolar cables twisted into a bundle, but shaped by bare unipolar conductors. The invention applies normally, but not exclusively, to the fields of cables for medium voltage overhead lines, from
    alternating current (MVAC) AND direct current (MVDC). These cables are
    15 typically with a nominal voltage greater than 1 kV and equal to or less than 30 kV; even if
    It can also be useful in low and high voltage cable fields.
    The invention is located in the technical sector of electromechanical engineering, and more specifically in that of high-voltage power line infrastructures.
    General and closest prior art
    Different types of cables used in the state of the art are known in
    overhead power lines of medium voltage, being these: 25
    - bare conductors;-coated conductors;- insulated unipolar cables twisted in bundle.
    30 Bare conductors are made up of an inner body, or core, based on
    steel wires, galvanized (STI) or covered with aluminum (AC), and with a cuCl] Xl
    concentric, or conductive, formed by aluminum wires (ALt). The composition and
    their characteristics appear in the UNE EN 50182 standard.
    35 Coated conductors are identical to those of the previous group but have a
    plastic cover that does not provide insulation but does provide some protection, eg for
    avifauna, arllolado, etc. The composition and characteristics of the same appear in standard UNE EN 50397-1.
    4 o Beam twisted insulated single core cables are made up of a bundle twisted insulated wire theme around a galvanized steel rope with plastic sheath. The composition and characteristics of the same appear in the nonna lEC
    60502-2 AND RU 3309.
    45 The inductive reactance of a conductor is given by the following equation:
    XL = W • L (nIkm)
    when Q = 2 · TI · f; where f is the frequency (Hz) and L is the self-induction coefficient dadQ
    by L = (0.05 + 0.2 · In ('. ~~ G)) .10-3 (HIkm); where 0 is the diameter (mm) of the
    conductor (not to be confused with the cable diameter) and DMG is the Geometric Mean Distance between conductors (mm) expressed by DMG = Va12. a13. a23 (mm), 5 siendQ axy the distance (mm) between centers of IQS cables x and y.
    Bare conductors and coated conductors require a high minimum separation of conductors; in concrete in Spain this distance is 1.5 m as established in the measures published in the RDI432 / 2008. This distance generates
    10 a high inductive reactance, since comQ has been indicated, L depends on DMG; The use of more voluminous spreaders and joints is also required, increasing the cost of supporting IQS and generating greater easements for the owners of the farms where the aerial laying takes place.
    15 The unipolar insulated cables twisted in a bundle are in W1QS contact with each other, therefore their minimum DMG (# nu1a since axy is the distance between centers of the cables x and y).
    In isolated XL conductors it is of the order of 0.1 (! L / km) and in a standard 2 O overhead line XL it is of the order of 0.4 (O / km), that is, 4 times higher, QriginandQ a 4 times higher voltage drop.
    Bare cables have the advantage of dissipating internal heat (generated by Joule losses) compared to the insulated stranded beams W1, 25 achieving PQr which means less operating temperature for the same electric current intensity.
    In the state of the closest technique we have the following documents, among others:
    3 O In the patent document called DOl with publication number ES 2344769 T3 AND publication date 06.09,2010 and literally titled: "High voltage electric cable", W1 electrical cable is described, comprising W1a layer of electrical insulator at base of polyethylene and a copolymer of styrene.
    35 In the patent document named D02 with publication number ES 2445320 T3 AND publication date 03.03.2014 and literally titled: "Tenninal connection device for an electric cable", a tenninal connection device for an electric cable is described in In particular, a medium-voltage or high-voltage electrical cable, and a method for connecting one end of a medium or high voltage electrical cable to a point of
    4 Or connection.
    In the following web link:http://www.prysmianc1ub.es/files/92a2b:5cb9c/plO/mtbaja_2014%20unapag.pdfA complete catalog of cables and accessories for medium voltage appears.
    Technical problem raised
    The systems of the state of the prior art present a problem that focuses mainly on the following aspects:
    X The bare and covered conductors require a high distance between conductors and therefore have W1a high inductive reactance, causing W1a high voltage drop;
    10 X Bare and covered drivers require expensive supplemental beacon devices to protect the avifaW1a;
    X Bare conductors cause W1a high electrocution of the avifaW1a, the corrective measure being the increase in the distance between conductors,
    15 requiring the use of crosses and bulky assemblies, which increases the cost of supports and generates greater service to the owners of the farms where the aerial laying takes place;
    X The insulated unipolar conductors two bundle braided have W1a capacity of 2 O reduced transport due to its low capacity of evacuation of internal heat.
    X The insulated beam twisted W1-pole conductors make visual monitoring of the phases impossible (eg phases A, B, e, if it is tri-polar) because they are twisted in longitudinal advance.
    25 Technical advantage provided by the invention
    ~ The cable (l) that the invention recommends solves in a fully satisfactory way the problem previously exposed, in each and every one of the 3 Or different aspects mentioned.
    It is therefore W1a long-sought need to have W1 cable for overhead power lines that combines the advantages of bare conductors and insulated conductors, as well as having W10S accessories for their assembly and connection.
    35 Brief description of the figures
    To complement the description and in order to help W1a better understand the characteristics of the invention, Ste accompanies, as an integral part of said description, a set of figures with an illustrative and non-limiting character.
    Reference glossary
    Any electrical cable of the state of the prior art;
    ®
    45 (!) Electric cable object of the invention;
    (10) Insulating resistant core;
    "
    (the')
    (101)
    (102) (IIA) 5 (IIB) (tIC) (12A) (12B) (l2C)
    10 (13)
    (14)
    (fifteen)
    (16)
    ill
    15 (20A) (2IA) (22A) (23A) (24A)
    20 (25A) 26 27 28 29
    25 W
    (30) (±)
    (40) (4IA)
    30 (4IB) (41C)
    Conductive tough core; Heavy duty driver;
    Insulator of the soul; Driver "A";
    Driver "B"; Driver tiC ";
    Housing "A" (lined with semiconductor screen);
    Accommodation "B" (bis);
    Accommodation "e" (tris);
    Isolation;
    Straight insulating fin;
    Curved insulating fin;
    External cover;
    Suspension clip;
    Semiconductor element nA ";
    Insulating element itA ";
    Strong element "A";
    Spring washer "A";
    Nut "A"; Thyme ti A ";
    Upper body tubular casing;
    Tubular casing lower body;
    Dovetail coupling;
    Upper ear;
    Lashing clips;
    Lower ear;
    Tennina) from outside;
    Body;
    Tenninal "A"; Tenninal "B"; Tenninal "C"; Glossary of symbols
    APl Support with line start function;
    35 AP2 Support with alignment function (with vertical shots);
    AP3 Support with alignment function;
    AP4 Support with angle function;
    AP5 Support with smooth angle function;
    AP6 Support with end of line, splice or bypass function;
    4th 0reNominal outside diameter of cable;
    0ri Nominal inside diameter of the cable;
    0c Conductor diameter;
    0a Soul diameter;
    and Minimum insulation thickness;
    45 ang2 Housing opening angle;
    n, n Number of unipolar cables;
    Figure 1 (Fig.I) .- shows an e uematic view of a profile and plan of any overhead cable laying using an electrical cable object of the invention (1).
    Figure 2 (Fig.2) .- shows a cavalier perspective view of an electrical cable 5 object of the invention (1) at the time of coupling bare n-conductors (IIA, IIB, IIC); (in figure n ~ 3).
    Figure 3 (Fig. 3) .- shows a cross-sectional view of an electric cable object of the invention (1). Fig. 3A: without coupling the bare n-conductors (ll A, ll B, ll C). 10 Fig.3B: the bare n-conductors are coupled (1IA, IIB, IIC); (in figure n ~ 3).
    Figure 4 (Fig.4) .- shows a cross-sectional view of an electric cable object of the invention (1), without shading its elements, and in which references of the most significant geometry have been indicated; (in figure n = 3).
    15 Figure 5 (Fig.5) .- shows an elevation view, in Fig.5A of a suspension clip
    (2) and in Fig. 5B of a tie clip (3), both for an electric cable object of the invention (1).
    20 Figure 6 (Fig. 6) .- shows a longitudinal section view, in Fig. 6A of a suspension clip (2) and in Flg. 6B of a tie clip (3), both for an electrical cable object of the invention (1).
    Figure 7 (Fig. 7) .- shows a cross-sectional view of a suspension clip (2) 25 mounted on an electrical cable object of the invention (1).
    Figure 8 (Fig. 8) .- shows a cross-sectional view of a mooring clip (3) mounted on an electrical cable object of the invention (1).
    3 O Figure 9 (Fig.9) .- shows, in Fig.9A "a plan view and Fig.9B a profile view, of an outdoor terminal (4).
    Figure lO (Fig.10) .- shows, in Fig.IIlA an elevation view and Fig.IOB a plan view, of a support with connection function (AP.3) in which a cable has been arranged 35 electrical object of the invention (1).
    Figure 11 (Fig. 11) .- shows, in Fig. 1: IA an elevation view and Fig. L1B a plan view, of a support with a smooth angle function (AP .5) in which a electric cable object of the invention (1).
    40 Figure 12 (Fig.12) .- shows, in Fig.l:! At an elevation view and Fig.12B a plan view, of a support with alignment function (with vertical shots) (AP.2) or angle (AP.4) in which an electrical cable object of the invention (1) has been arranged.
    4 5 Figure 13 (Fig. 13) .- shows, in Fig. 13A a profile view and Fig. 13B a plan view, of a support with firm start (APl) or end of line (AP6), equipped with a
    Conversion to conventional bare cable (O), in which an electric cable object of the invention (1) has been arranged.
    Figure 14 (Fig.14) .- shows, in Fig.14A a profile view and Fig.14B a 5-plan view, of a support with line fil: l function (AP6), equipped with a conversion to underground , in which an electrical cable object of the invention (1) has been arranged.
    Figure 15 (Fig.15) .- shows, in Fig.15A a profile view and Fig.15B a plan view, of a support with end-of-line function, connection or derivation (AP6) equipped with
    10 a continuation with a cable recommended by the invention (1), in addition to a provision for cross bypass, in which St ~ has arranged an electric cable object of the invention (1).
    Detailed description of the invention and detailed exposition of a preferred embodiment of the invention
    A preferred embodiment of the invention is described in detail, among the various possible alternatives, by listing its components as well as its functional relationship based on references to the figures, which have been included, by way of example.
    2 Or illustrative and not limiting, according to the principles of the claims.
    Figure 1 (Fig.l) .- shows a schematic view of a profile and plan of any overhead cable laying using an electrical cable object of the invention (1).
    25 The cable (1) has been shown in a single continuous line and the following supports can be seen:
    - API: support with line start function; it starts from a laying made with conventional bare cable (O) (represented in plan as a continuous 3 O multiple line), and continues with a cable object of the invention (1); the annado of
    This support is of the mooring type;
    - AP2: support with alignment function (with vertical shots); vertical shots are those produced upwards due to the unevenness of the terrain; the 35 annado of this support is of the suspension type with counterweights or mooring;
    - AP3: support with alignment function, without vertical shots; the support of this support is of the suspension type;
    4 O -AP4: support with angle function; The: this support is of a mooring type;
    - AP5: support with smooth angle function; smooth angle is the one that is less than about 10-150; the support of this support is of the suspension type with counterweights;
    - AP6: support with end of line, splice or bypass function; In this support, a transformer center will normally be fed (or interconnected with another line), continuing the line in underground mode, or in conventional aerial mode (O), or using the cable object of the invention (1) (represented in outline) discontinuous
    5 unique); the support of this support is of a mooring type;
    Figure 2 (Fig.2) .- shows a "11 P" view of a gentleman's perspective of an electrical cable object of the invention (1) at the time of coupling bare n-conductors (IIA, IIB, IIC); (in figure n ~ 3).
    10 The "A" (tiA) conductor has been called that of the nAtt phase, the "B" (lIB) conductor that of the ItB phase "and the" C "(lle) conductor that of the" CIt phase, this being the typical configuration for a three-phase alternating current medium voltage circuit (neutral is not required). It is also valid for a DC 3-pole medium voltage circuit,
    15 being, for example, the conductor "A" (tIA) the positive, the conductor "Bit (11 B) the negative, and the conductor" e "(11 e) the neutral. The invention allows using an n other than three, eg n = 2 for a DC bipolar medium voltage circuit Also n = 4 for a three phase circuit with neutral, typical low voltage.
    20 The mentioned conductors (IIA, IIB, IIC) are preferably bare, constructed with compact round cord of d-wire (~ aluminum, class 2, according to UNE EN 60228, longitudinally sealed conductor against water, without the need for steel). in both housings (12A, 12B, 12C) through an opening that has been left in them. This opening has an angle (angI2) always less than
    25 180 "And normally less than goo (since the materials are not rigid) in order for the conductor to snap in and prevent its eviction. The opening is lined with a semiconductor screen in order to uniform the field gradient electrical to which the insulation is subjected (13).
    3 O Figure 3 (Fig. 3) .- shows a cross-sectional view of an electrical cable object of the invention (1). Fig. 3A: without coupling the bare n-conductors (llA, llB, llC). Fig.3B: bare n-conductors coupled (11 A, 11 B, IIC); (in figure n == 3).
    The cable object of the invention (1) consists of:
    8. Bare n-conductors (11A, llB, 11C) constructed of compact string of aluminum wires or any other conductive material, the function of which is to conduct electric current;
    40 b. a cylindrical geometry insulation (13) provided with n-housings (12A, 12B, 12C), covered with a semiconductor screen, (: in the form of a cylindrical cavity, which have an external opening that allows the introduction, with a certain pressure, of the n conductors (IIA, IIB, IIC), said housings being equidistant from each other and arranged at (360 "/ n); whose function of the insulation (13) is to support and maintain the insulation
    45 electrical between the different conductors (IIA, IIB, IIC) since these are bare; preferably constructed of Ethylene · -High Module Propylene (HEPR) capable of working at a high gradient, which means lower insulation thicknesses, or of crosslinked Polyethylene (XLPE); it has an outer cover (16) based on additive silicone rubber to protect the insulation from chemical, atmospheric agents such as UVA rays, etc .;
    c. a resistant core (10,10 ') Luya's function is to withstand the mechanical tensile stress necessary to withstand the laying of the cable (1); it can be of two types: an insulating resistant core (10) or a conductive resistant core (10 '); preferably it will be made of an insulating type (10). The characteristics of each of the two 10 types are described below. The insulating resistant core (10) composed of a dielectric resistant material; preferably consisting of a composite material shaped by a plastic or resin matrix, reinforced with fiber d (~ glass, electrically and mechanically resistant to the stresses required for the tensioning of the cable object of the invention (1). Class E glass fiber it has a density of 2.58 g / cm3 and a breaking stress of 3445 MPa, 1 S it has an amorphous structure and therefore has isotropic properties.Humidity can be easily absorbed by the glass fiber, reducing its breaking stress; In the present invention, the fiberglass is adequately protected by wrapping it within an insulation (13). The conductive resistant core (10 ') composed of a resistant conductive material (101) protected and isolated by a core insulator (102) ;
    20 preferably made of galvanized steel with a HEPR or XLPE cover. Galvanized steel has a tensile stress d: e of 400 MPa. Both cores (10,10 ') can have a central recess I, to house a plurality of optical fibers for data transmission function;
    25 d. a plurality of insulating fins r, ectas (14) and curved insulating fins (15) made of silicone rubber with additives and fillers; preferably a high temperature vulcanization (HTV) solid silicone component or two liquid silicone rubber components that are mixed and vulcanized at high temperature (LSR). The vanishing line definition is the shortest distance 3 O between conductive parts on an insulating surface, therefore the function of the plurality of fins (14,15) is to increase said vanishing line to adequate values according to the electrical voltage to which the conductors (1IA, IIB, IIC) are subjected, defining in each case the nominal voltage of the cable (1). Regarding the shape of the fins, straight (14) and curved (15) have been devised in order to increase the line of flight to the desired value and to protect the birds from electrocution, achieving with the innovative combination of dich : ae; They form a practically equidistant distribution of gaps and practically no access to the conductive elements (llA, llB, llC). The number of curved insulating fins (15) is equal to 2'0, and the number of straight insulating fins (14) is variable depending on the nominal internal diameter of the cable 4 or (0ri) and the nominal external diameter of the cable (0re) ~
    Figure 4 (Fig.4) .- shows a cross-sectional view of an electric cable object of the invention (1), without shading its elements, and in which references of the most significant geometry have been indicated; (in figure n = 3).
    The nominal parameters of the electric cable object of the invention (1) are:
    - nominal external diameter of the cable (0.e);- nominal internal diameter of the cable (0ri);
    5-conductor diameter (0c);-soul diameter (0a);-minimum insulation thickness (e);- housing opening angle (angI2);
    1.0 where the height of the straight insulating fins (14) is equal to / ifre; / ifri, and the height of the fins
    curved insulators (15) equal to :::::: 1.6. / ifre; {'lri graphically obtained by
    CAD for preferred construction. The opening angle of the housing (angI2) will be large enough to allow the driver (IlA, IlB, IlC) to be inserted into the housing (12A, 12B, 12C) but as small as possible for
    1. 5 make their eviction impossible. Keep in mind that the housing is made of material with a certain flexibility, with an optimal range of values of angl2 = 900 ± 10 ° being experienced for a preferred construction.
    Figure 5 (Fig. 5) .- shows an elevation view, in Fig. 5A of a suspension clip 20 (2) and in Fig. SB of a tie clip (3), both for an electrical cable object of the invention (1).
    A suspension clip in power lines is an accessory that allows you to support a cable suspended with respect to an assembly of a support, supporting only small
    25 horizontal and vertical components of the cable pulling force, moving relative to its point of support to balance said components; For this the suspension clip is suspended from a chain of suspension insulators. On the contrary, a lashing clip must support the total of the horizontal and vertical components of the pulling force; for this it is fixed to a chain of mooring insulators.
    An suspension clip (2) and a tie clip (3), object of the invention, allow the functions indicated in an electric cable object of the invention (1) to be performed.
    Figure 6 (Fig. 6) .- shows a longitudinal section view, in Fig. 6A of a suspension clip (2) and in Fig. 6B of a tie clip (3), both for an electrical cable object of the invention (1).
    Figure 7 (Fig. 7) .- shows a cross-sectional view of a suspension clip (2) mounted on an electric cable object of the invention (1). 40 The suspension clip (2) consists of:
    to. a tubular casing upper body (26) coupled, to form a tubular casing
    by means of a dovetail type coupling (28), to a lower body tubular casing 45 (27) and whose internal diameter is approximately equal to the nominal external diameter of the cable (0re), with an upper ear being provided on the outside of it
    (29) to house a link ball joint by means of a bolt and safety pin of the "self-locking" type specified in RU 6617C, the complete housing assembly having several planes with n-threaded holes, each arranged at (360 ' Yn) with each other;
    S the material of the casing is preferably insulating but mechanically resistant material, eg composite material formed by a matrix of plastic or resin reinforced with fiberglass, it can also be made of a conductive material, eg aluminum or steel;
    10 b. n-cable fixing elements (1) consisting of:
    for the conductor (1 lA), an insulating element "A" (21A) with a trapezoidal shape that
    fits into a gap of identical shape and cross-sectional dimensions, which presents a
    accommodation "A '(12A) occupied by aconductor (1 lA), andinwhose face of
    fifteen contact with the cti spone conductor of a semiconductor element "A" (20A), AND
    that has a strong element "A" (22A) attached to its opposite face, which
    has a circular hole to seat one end of a thyme "Al!
    (25A), the other end of which is threaded to one of the aforementioned holes
    threaded housing, also carrying a nA "spring washer (23A) and a
    2 O nut 'A' (24A) that functions as a lock nut;
    for the rest of the drivers the same elements; in this case with n = 3, for the conductor (11 B) AND the conductor (11 C).
    25 Figure 8 (Fig. 8) .- shows a cross-sectional view of a tie-down clamp (3) mounted on an electrical cable object of the invention (1).
    The lashing clip (3) consists of:
    3 O a. a tubular casing upper body (26) coupled to form a tubular casing by a dovetail coupling (28) to a tubular casing lower body (27), the inner diameter of which will be approximately equal to the nominal outer diameter of the cable (0re), having on the outside of it an upper ear
    (29) and diametrically opposite of a second lower ear (30), to accommodate paths
    35 ball joints by means of a bolt and safety pin of the "self-locking" type specified in RU 6617C, the complete set of the casing having several planes with n · threaded holes each arranged at (360 '/ n) each other; the housing material is preferably mechanically resistant but insulating material, eg composite material based on a plastic or resin matrix, reinforced with fiberglass
    4 Or glass, and can also be made of conductive material. eg aluminum or steel;
    b. n-cable fixing elements (1) consisting of:
    for the conductor (1 lA), a trapezoidal insulating element itA "(21 A) that fits into a hole of identical shape and transverse dimensions, which has a housing" A "(12A) occupied by a conductor (IIA ), and on whose face of contact with the conductor (IIA) it has a semiconductor element "A" (20A), and which has a resistant element "A" (22A) adhered to its opposite face, which has a hole circular so that one end of a thyme "A" (25A) sits, the other end of the thyme being threaded to one of the aforementioned
    5 threaded holes in the housing, also carrying a spring washer "A" (23A) AND a nut "A" (24A), which functions as a lock nut;
    for the rest of the drivers the same elements; in this case with n = 3, for the conductor (11 B) and the conductor (11 C).
    10 Figure 9 (Fig. 9) .- shows, in Fig. 9A tilna plan view and Fig. 98 a profile view, of an external end (4).
    The "KIT" type manufacturing external terminal (4), that is to say, a set of elements 15 for assembly by qualified personnel in-situ, and consists of:
    to. a tie clip (3) that receives an electrical cable object of the invention (I) at one end, said end being sealed with polymeric foam or the like with high resistance to humidity and whose other end is coupled to a body (40). ) in which
    2 Or inside there is a module adaptable to bare cables, any of the state of the prior art, and which is know by a plurality of polymeric external terminals (41A, 41B, 41C);
    b. a hole in a body (40) prepm, to remove the insulating resistant core (10) or conductive core (10 ');
    Figure 10 (Fig. 10) .- shows, in Fig. 10A an elevation view and Fig. 10B a plan view, of a support with an input function (AP.3) in which a electric cable object of the invention (1).
    Note that a suspension clip (2) suspended from a composite insulator in suspension function has been used, arranging the assembly in a vault-type piping.
    Figure 11 (Fig.ll) .- shows, in Fig.llA an elevation view and Fig.llB a plan view, of a support with a soft angle function (AP.5) in which a cable has been arranged electrical object of the invention (1).
    Note that a suspension clip (2) suspended from two composite insulators, arranged in a "V", has been used, depending on the suspension arranged by the 4 O assembly in a vault type pipe.
    Figure 12 (Fig.12) .- shows, in Fig.¡: ZA an elevation view and Fig.12B a plan view, of a support with alignment function (with vertical shots) (AP.2) or angle (AP.4) in which an electric cable object of the invention (1) has been arranged.
    Note that a tie clip (3) has been used, attached to three composite insulators, arranged in a "Y", depending on the tie, the assembly arranged in a vault type duct.
    5 Figure 13 (Fig. 13) .- shows, in Fig. 13A a profile view and Fig. 13B a plan view, of a support with start (API) or end of line (AP6) function, equipped with a conversion to conventional bare cable (O), in which an electric cable object of the invention (1) has been arranged.
    10 Note that an external terminal (4) has been used, attached to two composite insulators based on clamping, one superior and one lower, the assembly arranged in a vault-type assembly. The resistant insulating (10) or conductive core (10 ') has been fixed by means of a tie clip, any of the state of the art, located in the lower tie composite insulator. The terminals (41A, 41B, 41C) have been connected
    15 with each of the three phases of any overhead power line of the state of the prior art (O), which arranged etl a crosshead are tied with composite function insulators.
    Figure 14 (Fig. 14) .- shows, in FIg. 14A a profile view and Fig. 14B a view in
    2 Or plant, of a support with end-of-line function (AP6), equipped with a conversion to underground, in which an electric cable object of the invention (1) has been arranged.
    Note that an external teoninal (4) has been used, fixed to two composite insulators in mooring function, one upper and one lower, the assembly arranged in a vault-type assembly. The resistant insulating (10) or conductive (10 ') core has been fixed by means of a tie clip, any of the state of the art, located in the lower tie composite insulator. The terminals (4IA, 4IB, 41C) have been connected to each of the three phases of any underground power line of any state of the prior art (O), with its elements, self-valves and external terminals,
    3 Or arranged on a crosshead.
    Figure 15 (Fig.15) .- shows, in Fig.15A a profile view and Fig.1SB a plan view, of a support with end-of-line, connection or bypass function (AP6) equipped with a continuation with cable recommended by the invention (1), in addition to a provision
    35 of transversal derivation, in which an electrical cable object of the invention (1) has been arranged.
    Note that, on the one hand, an external terminal (4) has been used, fixed to two insulators composed of a tie, one upper and one lower, arranged the
    4 Or set in a vault type annado. The resistant insulating (10) or conductive (10 ') core has been fixed by means of a tie clip, whatever the state of the art, located on the lower tie-down composite insulator. The terminals (4IA, 41B, 4IC) have been connected to each of the three phases of a system identical to that described but arranged on the other side. The described arrangement is suitable for:
    - making a splice of an electrical cable object of the invention (1); - making a derivation of an electric cable object of the invention (1);
    权利要求:
    Claims (4)
    [1]
    l. N-polar cable formed by n bare unipolar conductors (1) and their accessories: suspension clip (2), tie clip (3) and outdoor terminal (4), of the type of
    5 those that incorporate a plurality of conductors used to build power lines ~ characterized by consisting of:
    •. an electric cable (1) consisting of:
    10 -n-conductors (IIA, IIB, tIC) bare, whose function is to conduct electric current;
    - a cylindrical geometry insulation (13) provided with n-housings (12A, 12B, 12C), covered with a semiconductor screen, in the shape of a cylindrical recess 15 with an external opening that allows the n · conductors to be inserted, exerting a certain pressure ( 11 A, 11 B, 11 C), said housings being equidistant from each other and arranged at (360 "/ n), whose function of insulation (13) is to support and maintain electrical insulation between the different conductors (1IA, IIB, IIC ) since these are bare and that it has an outer cover (16) for protection
    2 O exterior;
    - a resistant core (10,10 ') whose function is to withstand the mechanical tensile stress necessary to support the cable (1);
    25 -a plurality of straight insulating fins (14) and curved insulating fins (15), their function being to increase the flight line and the protection line for birds;
    b. a suspension clip (2) composed of:
    3 O - a tubular casing upper body (26) coupled to form a tubular casing by a dovetail coupling (28) to a tubular casing lower body (27), and whose inner diameter is approximately equal to the nominal outer diameter of the cable (0 <e), an upper ear (29) being arranged on the outside to house a link ball joint by means of a bolt and safety pin, and
    35 the entire housing assembly having various planes with n-threaded holes each arranged at (3600 / n) with each other;
    - n · cable fixing elements (1) consisting of: for the conductor (1 lA), an insulating element "A" (21A) with a trapezoidal shape that fits into a gap of identical 40 shapes and transversal dimensions, which has a housing "A" (12A) occupied by a conductor (IIA), and on whose face of contact with the conductor it has a semiconductor element "A" (20A), and which has attached on its opposite face a resistant element "A" (22A), which has a circular hole to seat one end of a screw "A" (25A), the other end of the screw being threaded to one of the aforementioned threaded holes in the housing, also carrying a spring washer "A" (23A) and a nut "A" (24A) that functions as a lock nut; and
    for the rest of the drivers the same elements; in this case with n = 3, for the conductor (11 B) AND the conductor (IIC).
    C. a tie clip (3) identical to "the suspension clip (2) but having 5 in addition to a lower ear (30) diametrically opposite to an upper ear (29);
    d. an external terminal (4) of manufacturing type "KIT", that is to say, a set of elements for assembly by Gualified personnel on-site, and consisting of:
    10 -a tie clip (3) that receives a cable (1) at one end, said end being sealed with polymeric foam or the like with high resistance to humidity, and whose other end is coupled to a body (40) inside which there is a module adaptable to bare cables, any of the state of the prior art, and which connects to a plurality of polymeric terminals (41A, 41B, 4IC) of
    1 S outside;
    - a hole in a body (40) prepared to remove a resistant core (10,10 ');
    [2]
    2. N-polar cable shaped by n bare unipolar conductors (1) and their accessories
    20 (2,3,4), according to claim 1, characterized in that the resistant core is an insulating resistant core (10).
    [3]
    3. N-polar cable shaped by n bare unipolar conductors (1) and its accessories (2,3,4), according to claim 1, characterized by the fact that the core
    2S resistant is a conductive resistant core (10 ') composed of a resistant conductive material (101) protected and isolated by a core insulator (102);
    [4]
    4. N-polar cable shaped by n bare unipolar conductors (1) and their accessories (2,3,4), according to previous claims, characterized by the fact that
    3 Or both souls (10,10 ') can have a central recess to house a plurality of optical fibers for data transmission signature;
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    同族专利:
    公开号 | 公开日
    ES2548631B2|2016-02-25|
    引用文献:
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    GB2175323A|1985-05-15|1986-11-26|Acco Babcock Inc|A high tensile strength transmission cable|
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    US20050034891A1|2003-08-13|2005-02-17|Ekeberg Knut Ivar|Flexible electrical elongated device suitable for service in a high mechanical load environment|
    CN102254602A|2011-07-06|2011-11-23|黄华道|Shielding line|
    CN202332340U|2011-11-09|2012-07-11|上海汉欣电缆技术有限公司|Railway signal cable with single protective wing support|
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