ES1269229U - ZONE LIMITER IN ELECTRICAL SUPPORTS (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Limiter of areas in electrical supports, in which a fitting (1) participates, through which the fixing to the corresponding crosshead (2) of a pole or tower through which an electrical line (3) is passing through is carried out, hardware to which one of the ends of an insulating bar (4) or insulating element is fixed, and that at its other end is linked through a tie clamp (6) or similar to a cable or electric line (3), characterized in that it is constituted from a body of an insulating nature, which has a flattened configuration, in the form of a circular sector (7) that extends more than 180º, a body in whose central area a bushing (8) is attached to the same and open lower and longitudinally, formally and dimensionally suitable to the fitting (2) in which it is intended to be attached, having in correspondence with at least one of its ends some appendices or lugs (9) that define means for screwing the device and coupling to said fitting (two). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

ZONE LIMITER ON ELECTRICAL SUPPORTS

OBJECT OF THE INVENTION

The present invention refers to a limiter of contact areas in electrical supports, such as medium or high voltage towers, whose purpose is to avoid the electrocution of birds that could perch in the different areas of the electrical supports, where each one is set to different potential.

The object of the invention is therefore to provide a device that limits the space of the bird in its perching on the tower structure, preventing it from its perching area from invading another area set at a different potential, such as the driver or the crosshead.

With these elements, therefore, the electrocution of large birds such as raptors and storks that can cause damage to power lines and interrupt the electricity supply is avoided, generating a problem for distribution companies in areas where electrocution of birds is frequent.

BACKGROUND OF THE INVENTION

In high voltage lines, the corresponding cables are sufficiently separated from each other so that larger birds, such as eagles, storks and others, cannot touch two cables of the line with their outstretched wings, since in this case the bird would be electrocuted, so that this separation is sufficient to prevent precisely the bird of the type referred to from being able to simultaneously touch two high voltage cables.

However, the same does not happen at the level of the supports, where electrocution can be carried out by simultaneously touching a single cable and a part of the metal structure of the the tower, being in these places and in the aforementioned circumstances where the death of most of the birds of important species such as eagles and others occurs.

Thus, damage caused by short circuits, where the bird makes contact between the phases or between the phase and the ground, can cause damage to cables, but more often damage to installations (e.g. transformers, fuses burners and surge arresters).

Large birds being electrocuted sometimes cause a circuit failure, which will remain until maintenance workers remove them from the scene.

It is estimated that animals are responsible for up to 10% of electricity cuts, where the cost of each can cost thousands of Euros, added to the inconvenience it causes to the many affected customers.

Electrocution is the leading cause of death for eagles. Their large wingspan means that they can make contact with two cables simultaneously when they take flight or perch on a power pole.

The electrocution of birds in power lines has been documented for a century, however, the problem persists and has increased, becoming the major cause of mortality of some endangered species. The impact of electrocution can be especially severe for globally threatened predators and scavengers such as the hawk, eagle, vulture, etc.

The risk of electrocution of birds must be taken into consideration when setting up the infrastructures for electricity distribution lines. The key elements are;

a) Ensure that all phase cables are sufficiently separated to reduce the risk of large birds touching both simultaneously,

b) Preferential use of non-conductive materials for the structures, such as wooden posts or reinforced fiber in the spreaders and

c) In grounded structures, such as concrete poles reinforced with metal crosspieces, the cables should hang from the insulators instead of supporting the cables on fixed insulators.

Other safe alternatives for birds include the installation of insulated cables.

DESCRIPTION OF THE INVENTION

The zone separating device in the electrical supports that is advocated has been conceived to solve the aforementioned problems, based on a simple but highly efficient solution.

For this, and more specifically, the device of the invention is embodied in a body of an insulating nature, made of light material, intended to be implanted in correspondence with the fitting that links the crosshead of the pole or tower with the electric line, fitting to the that is fixed by one of the ends an insulating element, an insulating element that at its other end is linked to one or more metal fittings through which the anchoring, fastening and passage of the conductive cable corresponding to the electric line is carried out by means of of a tie clip.

Well, in accordance with the essence of the invention, the device is embodied in a flattened body, in the form of a circular sector that extends more than 180 °, in the central area of which an open cap is established at the bottom and longitudinally, formally and dimensionally. suitable for the fitting of the crosshead on which it is fitted, however having, in correspondence with one of its ends, appendages or lugs that define means for screwing the device and coupling to said fitting.

The device thus described defines a barrier high enough to prevent the access of the wings of the bird that has landed on the crosshead to the areas where the electrical cables are attached.

As for the barrier itself, it does not need to be solid, preferably presenting a reticulated structure based on radial arms and arched walls forming the aforementioned reticule, which allow the device's weight to be drastically reduced without affecting its resistance to lateral forces. to which it is subjected by the support of the birds.

In this way, an inexpensive, easy-to-implement device is achieved, which significantly increases the security of the installation against the possible perching of birds on its crosshead, compatible with other security or isolation systems that already exist.

DESCRIPTION OF THE DRAWINGS

To complement the description that is going to be made below and with the aim of helping a better understanding of the characteristics of the invention, according to a preferred example of a practical embodiment thereof, a set of drawings is attached as an integral part of said description. where, with an illustrative and non-limiting nature, the following has been represented:

Figure 1.- Shows a perspective view of the zone limiter in electrical supports made in accordance with the object of the present invention.

Figure 2.- Shows a front elevation view of the device.

Figure 3.- Shows a side elevation view of the device.

Figure 4.- Shows a plan view of the device.

Figure 5.- Finally, shows a perspective view of the device duly mounted on the corresponding high voltage tower.

PREFERRED EMBODIMENT OF THE INVENTION

In view of the figures outlined, and especially of figure 5, it can be seen how the zone limiter in electrical supports of the invention is intended to be implanted in correspondence with the fitting (1), through which the fixing is carried out. to the corresponding crosshead (2) of a post or tower through which an electrical line (3) passes, a fitting to which one of the ends of an insulating bar (4) is attached as an insulating element, and with a considerable length, about a meter and even higher to that length, in such a way that said insulating bar (4) is linked by its opposite end to some metal fittings (5) through which the anchoring, fastening and passage of the conductive cable corresponding to the electric line (3 ) by means of a tie clip (6).

Well, according to the invention, the device is constituted from a body of an insulating nature, made of light material, which has a flattened configuration, in the shape of a circular sector (7) that extends more than 180 °, of In such a way that once implanted on the fitting (1), it extends below the crosshead (2), a body in whose central area a bushing (8) is established integral with it and open inferiorly and longitudinally, formally and dimensionally suitable to the fitting (2) in which it is intended to fit, counting in correspondence with one of its ends with some appendices or lugs (9) that define means for screwing the device and coupling to said fitting (2).

The aforementioned barrier that constitutes the circular sector (7) may have a diameter of the order of 710 millimeters, although it could have other dimensions according to the size of the native birds of the area in which the device is to be implanted.

As mentioned previously, the barrier that constitutes the circular sector (7) does not have to be solid, presenting a reticular structure, based on radial arms (10) and arched partitions (11), which reduces the weight of the structure while maintaining its resistance to stresses caused by birds.

Claims (3)

1§.- zone limiter in electrical supports, in which a fitting (1) participates, through which the fixing to the corresponding crosshead (2) of a pole or tower through which an electrical line is passed ( 3), hardware to which one of the ends of an insulating bar (4) or insulating element is fixed, and that at its other end is linked through a tie clamp (6) or similar to a cable or electric line ( 3), characterized in that it is constituted from a body of an insulating nature, which has a flattened configuration, in the form of a circular sector (7) that extends more than 180 °, a body in whose central zone a bushing is established (8 ) attached to it and open at the bottom and longitudinally, formally and dimensionally suitable to the fitting (2) in which it is intended to be attached, counting in correspondence with at least one of its ends with appendages or lugs (9) that define means for screwing of the device and coupling to said tool heh (2). 2§.- zone limiter in electrical supports, according to claim 1§, characterized in that the circular sector (7) has a reticular structure, based on radial arms (10) and arched partitions (11). 3§.- zone limiter in electrical supports, according to claim 1§, characterized in that the circular sector (7) has a diameter of the order of 710 millimeters.