KR0116313Y1 - Cable pack for high voltage - Google Patents

Abstract

The present invention relates to a cable bundle for a high-voltage distribution line. Specifically, the outer circumferential surface of the steel core is swiveled with light aluminum support lines, and the conductor, the inner semiconducting layer, the insulating layer, and the outer semiconducting layer are formed on the outer circumferential surface of the neutral wire. At least two of the conductor cables are pivoted at a constant magnification so that at least two of them can be circumscribed, reducing the installation area than before and maintaining the installed lines safely without a separate cable support such as an insulator. The cable bundle for distribution lines is designed to prevent safety accidents such as electric shocks and to perform line installation and inspection quickly.

In addition, the present invention improves the cable configuration of the new electrical engineering by reconfiguring the cable configuration as a unique shape in which a plurality of top conductor cables are rotated at a constant pitch around the neutral wire, thereby reconfiguring a cheap, light and safe power equipment system. It is a useful design.

Description

Cable bundle for high voltage distribution line

Figure 1 is a perspective view showing the configuration of the subject innovation

Figure 2 Figure 1 Figure 1 A-A enlarged cross-sectional view

Figure 3 is a perspective view showing the upper conductor structure of the present invention

Figure 4 is a state diagram showing the distribution state hypothesized by the present invention

Figure 5 is an enlarged view of the portion B of Figure 4 one embodiment of the present invention is installed on the telephone pole

Example perspective

6 is a perspective view showing a wiring state of a conventional overhead cable

※ Explanation of symbols for main part of drawing

10: conductor cable 11: conductor

12: insulator 12A: inner semiconducting layer

13B: insulation layer 12C: outer semiconducting layer

20: neutral wire 21: steel wire core

22: light aluminum support line

The present invention relates to a cable bundle for a high-voltage distribution line, and in detail, the outer circumference of the steel wire core is formed of conductors, inner semiconducting layers, insulating layers, and outer semiconducting layers from the core to the outer circumference of the neutral wire formed by turning the light aluminum support lines of several strands. At least two of the conductor cables of the insect repellent are rotated at a constant magnification pitch so that at least two of them are circumscribed, thereby reducing the installation area and maintaining the installed line safely without a separate cable support such as an insulator. The cable bundle for high-voltage distribution lines that can be configured to prevent safety accidents such as electric shock accidents and to quickly perform the line installation and inspection.

As shown in FIG. 6, a general cable for a distribution line supports a cable made of a copper wire having a high conductivity with one conductor on several insulators 50 placed on a telephone pole 30 excavated at a predetermined distance. 60) to prevent the sagging of the cable by bundling or hanging, etc. At this time, a certain separation distance between the cables should be maintained, and the cable is formed by maintaining a sufficient distance from the adjacent material.

On the other hand, the copper wire as described above has the advantage of high conductivity, but due to the high specific gravity, as the middle part of the line is severely sag in the distribution line, the material of the non-conductor which is installed in the proper width on the telegraph pole 30 at regular intervals, mainly formed of fraudulent material Each cable is supported by the insulator 50 to be fixed.

However, the cable hypothesis in the land using the telephone pole 30 as described above should be maintained at a constant distance between the cable or the adjacent object, as described above, if the number of cables passing through the telephone pole 30, the telephone pole 30 Since the installation is complicated by a large floor, the installation area may be excessively required, and continuous battery work such as a roadside tree which is close to each cable due to growth should be performed, and in particular, due to breakage of the insulator 50, etc. The risk of electric shock and safety accidents due to disconnection of the cable is always included, and at the same time, there is a problem that excessive maintenance costs for checking and repairing the bind, insulator 50, cable, and the like are required.

In addition, when constructing a cable with a copper wire in the ground as described above, the burden of construction cost is increased due to sufficient securing of the temporary construction area, and the construction time is too long due to the difficulty of excavation work, and the construction period is too long. In case of failure, it is difficult to find out the exact location of the failure, and it is difficult to accurately determine the location of the construction, which may damage other underground installations or damage the cable itself.

The present invention has been devised to solve the above problems, the object of the present invention is to form a conductor by twisting a plurality of strands of aluminum wire in a spiral at the core portion of the plurality of strands flowing high pressure outside the conductor By allowing the conductor cable to turn at a constant pitch, electricity flows through the conductor passing through the center when the cable is disconnected, and immediately detects this to block the transmission, thereby completely preventing the occurrence of an accident.

Another purpose is to protect the conductors of high-voltage conductor cables as multilayer insulators of the inner semiconducting layer, the insulating layer, and the outer semiconducting layer, thereby significantly reducing the separation distance from adjacent objects due to the perfect insulation effect.

For another purpose, the hard aluminum wires are pivoted on the outer circumferential surface of the steel core so that a plurality of strands of the conductor cable are pivoted at a constant pitch, so that the neutral wire is not required without a separate insulator such as insulator used to support the wire. It can be supported by the bay, and it can be installed as an additional line in addition to existing temporary equipment.

For other purposes, insulators are not necessary, and because they are made of relatively inexpensive materials, it is possible to purchase cables at a low cost and to manage them easily, thereby reducing the construction and maintenance costs, thus enabling economic equipment operation. ,

In addition to the above purpose, the aesthetic shape given by the combined shape of the top conductors turning at a pitch of a certain length allows the viewer to have an aesthetic feeling, thereby helping to harmonize the social environment through improved aesthetics. To provide a bundle.

The present invention as a means for achieving the above object,

Neutral wire 20 formed by spirally twisting a plurality of light aluminums 22 on the outer circumference of the steel core 21, and a plurality of conductor cables spirally pivoted to the outer circumferential surface of the neutral wire 20 in the center Form with (10),

The upper conductor cable 10 is a space portion formed between the conductor 11 formed by twisting a plurality of light aluminum support lines 11A in a spiral manner, and the light aluminum support lines 11A on the outer circumferential surface of the conductor 11. The insulating material 13 filled in the insulating material, the inner semiconducting layer 12A coated to surround the outer circumferential surface of the conductor 11, and the outer circumferential surface of the inner semiconducting layer 12A were coated with concentrically and extruded. The insulating layer 12B and the outer semiconducting layer 12C coated on the outer circumferential surface of the insulating layer 12B are formed.

Referring to the configuration of the subject innovation according to the above object in detail based on the accompanying drawings as follows.

The present invention concentrically coats the inner semiconducting layer 12A and the outer circumferential surface of the inner semiconducting layer 12A on the outer circumferential surface of the conductor 11 spirally twisting the plurality of light aluminum support lines 22. At the same time, the insulating layer 12B extruded and the insulator 12 formed as the outer semiconducting layer 12C formed on the outer circumferential surface of the insulating layer 12B so as to be in close contact with the insulating layer 12B but easily separated are coated. The plurality of light aluminum wires 11A are spirally rotated to the outer circumferential surface of the low-conductivity steel wire core 21 by using a plurality of strands of the conductive cable 10 having the shape of a conductive shape, and are compressed to the outer circumferential surface of the neutral wire 20. The conductive cable 10 is configured in a shape such that the conductor cable 10 is pivoted at a constant pitch about the neutral wire 20.

The present invention may be formed by turning the neutral conductor 20 into two or three strands of the conductor cable 10 that is circumscribed while turning at a constant pitch.

Therefore, it may be formed in three-phase two-wire or four-phase three-wire depending on the amount of voltage flowing, the pitch of the conductive cable 10 is preferably formed of a pitch of 20 to 25 times the total diameter of the cable bundle.

As shown in FIG. 3, the conductor cable 10 has a higher degree of insulation than the conventional copper wire, and is light and has a conductivity of about 60% with respect to the copper wire. They are compressed by twisting them spirally, and considering the conductivity, the cross-sectional area of the aluminum wire is larger than the copper wire for the same weight, so that sufficient high pressure can flow while innovatively reducing the weight of the cable when transmitting the same electricity.

The insulator 12 is composed of an inner semiconducting layer 12A, an insulating layer 12B, and an outer semiconducting layer 12C from the center of the cross section, and is manufactured in a dry manner.

The inner semiconducting layer 12A of the insulator 12 has a smooth inner surface of the inner circumferential surface in contact with the conductor 11, the thickness of which is at least 0.3 mm, and the space between the light aluminum wire twisted by the spiral The part is filled with the watertight material 13, for example, compound, rubber.

The insulating layer 12B is coated with cross-linked dolly ethylene in a concentric manner and is extruded by being in close contact with the inner semiconducting layer 12A, and the outer semiconducting layer 12C is in close contact with the insulating layer 12B. The peelability with the insulating layer 12B was made good.

The neutral wire 20 is to support the upper conductor cable 10 in which a plurality of strands are rotated on the outer circumferential surface, a steel wire core 21 having low conductivity is hypothesized, and the outer wire of the steel wire core 21 The aluminum support lines 22 are spirally rotated and compressed.

Referring to the drawings the operation and effects of the subject innovation as described above will be described.

As shown in FIG. 1 and FIG. 2, the present invention comprises a plurality of strands of the conductor cable 10 having a constant length in the center of the neutral wire 20 of the core. It is a high-voltage cable bundle.

The present invention of such a shape is that even if one strand of the multiple stranded conductor cable 10 is disconnected, since the disconnected cable is wound on the neutral wire 20 at a constant pitch, the cable is prevented from sagging, and thus a safe termination state can be maintained. Therefore, it is possible to prevent the line accidents due to disconnection in the existing cable has the advantage of significantly improving the safety and reliability.

In addition, in the present invention, in constructing the high-voltage conductive conductor cable 10, the conductor 11 is formed of an insulating material 13 such as rubber, an inner semiconducting layer 12A, an insulating layer 12B, and an outer semiconducting layer 12C. It is to be protected by a cross-linked polyethylene insulator (12) to be able to significantly reduce the separation distance from the adjacent object due to the perfect insulation effect, in particular, in the prior art, a certain distance between a plurality of cables to be laid out when laying the cable. As a result, many installation areas were required, but when the construction of the present invention, the installation area was drastically reduced, and at the same time, it was possible to install as an additional line by adding to the existing wiring facilities, thus enabling efficient wiring construction.

Meanwhile, in the conventional temporary construction, each cable is supported by the insulator 50 as shown in FIG. 6, but the present invention provides the conductor cables 10 to the neutral wire 20 in which the wire core 21 is formed on the neutral wire. By being turned to be supported, there is no need for a separate insulator 50 or a support rod 60, which is prepared to tie the cable from the insulator 50, and the present invention, as shown in FIG. The clamp 30A is fixed to the bolt 30B and is simply caught by the semiconductive liner 40 at one side so that the accident due to the insulator 50 breakage and defect is not caused at all.

Therefore, the present invention has the advantage that economical equipment operation can be enabled by reducing the temporary construction and maintenance cost due to the reduction of temporary parts such as insulator 50 and the purchase price of cables.

In addition, the present invention improves the cable configuration as a unique shape that allows a plurality of the conductor cable 10 to be rotated at a constant pitch about the neutral wire 20 as described above, so that it naturally harmonizes with the surrounding environment through aesthetic improvement. There is also an effect that can be converted to a full-fledged recognition that the high-voltage cable is a conventional hazardous environmental hazard.

Therefore, the present invention is a useful design that prepared breakthrough electricity of new electrical engineering by reconfiguring an inexpensive, light and safe power equipment system.

Claims (1)

Neutral wire 20 formed by spirally twisting a plurality of light aluminums 22 on the outer circumference of the steel core 21, and a plurality of conductor cables spirally pivoted to the outer circumferential surface of the neutral wire 20 in the center (10) formed into The upper conductor cable 10 is a space portion formed between the conductor 11 formed by twisting a plurality of light aluminum support lines 11A in a spiral manner, and the light aluminum support lines 11A on the outer circumferential surface of the conductor 11. A watertight member (13) filled in, an inner semiconducting layer (12A) covered to surround the outer circumferential surface of the conductor (11), and a crosslinked polyethylene coated on the outer circumferential surface of the inner semiconducting layer (12A) in a shape of a board member so as to be extruded. And an insulation layer (12B) and an outer semiconducting layer (12C) coated on an outer circumferential surface of the insulation layer (12B).