KR20220059380A - Composite cables including communication cables and power cables - Google Patents

Abstract

The present invention relates to a composite cable which covers a conductor for complex communication with aluminum foil and tin-plated wire to shield the conductor and prevent noise and the like, maintains the original shape of a cable and uniformizes arrangement by using an intervening material such as non-halogen resin or polyester between a power cable and a communication cable, and includes an aluminum interlock exterior to reduce construction time and prevent disconnection and the like due to load by strengthening tensile force. According to the present invention, since a communication cable and a power conductor are complexly formed on the inside of the exterior layer made of aluminum, separate cable installation is not required during cable work in the field. Since a method of installing a communication cable and power cable in an existing pipe is not used so that there is no possibility of damage to the communication cable and power conductor formed inside the complex cable, reliability of cable work can be increased and easy and smooth cable work can be performed because separate pre-wiring work is not required. Since the complex cable removes deflection of a cable, which is a disadvantage of existing cable construction, so that tensile force is increased, thereby providing an effect of increasing straightness of wiring. In addition, since the exterior layer is made of lightweight, corrosion-resistant, and durable aluminum or alloy material and connectors are formed at both ends of the cable, a main body and a pull box are easily coupled when and the connectors are connected to pull box holes, thereby providing an effect of facilitating handling during cable work in the field and significantly reducing construction costs through the reduction of installation time in comparison with existing cable wiring work.

Description

Composite cables including communication cables and power cables

The present invention relates to a composite cable including a communication cable and a power cable, and more particularly, by covering the communication conductor with aluminum foil and stone-plated wire to prevent shielding and noise, and to provide a non-halogen resin between the power cable and the communication cable. Or, using inclusions such as polyester to maintain the original shape of the cable and make the arrangement uniform, shorten the construction time by using an aluminum interlock sheath, and strengthen the tensile force to prevent disconnection due to load. will be.

In general, a number of various transmission or communication cables supply high voltage, which is an energy source for electric facilities or electrical devices, or are cables for various communication. In order to prevent safety accidents due to high voltage, the conductor formed inside the cable should be coated to have insulation. The power cable, which is the power transmission wire, serves to transmit electricity from one end to the other by arranging a conductor through which electricity can pass through the center line. If the power cable is classified by the exterior surface, there are soft skin, aluminum sheath, jute winding, exterior (steel strip, iron wire), chloroprene exterior, vinyl exterior, CD cable, etc. Type, SO type, inflow (OF), gas inlet, gas pressure, hydraulic pressure, BN cable, etc. Looking at some of the above, in the belt cable, the core wire is insulated with oil-immersed paper, twisted, and the oil-dipped paper is wound thereon. The top was again covered with lead, and an exterior was applied if necessary. It is not used much above 20kV. H cable has good heat dissipation as it has metal chemical paper or copper tape wound on the core insulation and has the same sheath as that of the belt cable. The inflow cable (OF cable) is to keep the oil-immersed paper in a completely immersed state at all times by setting an oil passage in the inclusions at the center of the single-core wire and three-core in the case of a single core, and supplying low-viscosity oil at a pressure higher than atmospheric pressure. Used for higher voltages. A gas pressure cable is one in which 0.7 kg/cm2 of low-pressure nitrogen gas is sealed instead of oil in the inlet cable. 12~14km/cm2 of nitrogen gas is enclosed. Finally, the hydraulic cable is made by press-fitting 14kg/cm2 of high-viscosity insulating oil instead of the gas of the gas pressure cable. On the other hand, the coaxial cable, which is a communication wire, refers to a communication cable used for LCX broadband transmission, and the center conductor and the outer conductor are insulated by a polyethylene or polystyrene disk or tape, and are arranged concentrically at correct intervals. there is. In general, there are 9.5mm coaxial cables and fine coaxial cables. The 9.5mm coaxial cable has an outer conductor inner diameter of 9.4mm and an inner conductor outer diameter of 2.64mm, and the fine coaxial cable has a 1.18mm copper wire as the inner conductor and coated with foamed polyethylene, and the outer conductor has an inner diameter of 4.4. The copper tape is wound so that it becomes mm. All of them are used for transmission of long-distance or short-distance communication. The combination of the coaxial cable and the power cable described above is called a composite cable. As a prior art for a cable composed by mixing the coaxial cable and the power cable as described above, the outer skin layer is disclosed in Korean Patent Registration No. 10-1907160. A watertight enclosure comprising: an exterior unit forming an exterior layer by winding an exterior metal material on the A cable manufacturing apparatus and method are disclosed, and in Korean Patent Laid-Open Publication No. 10-2011-0125923, a plurality of power lines made of a central conductor and an insulating coating layer and disposed adjacent to each other in the cable, and an optical fiber of one or more cores, An optical power composite cable comprising at least one optical fiber unit and a cable sheath made of a tube surrounding an optical fiber and disposed together with a power line is disclosed. A core part and the outer part comprising a conductor, an inner semiconducting layer formed around the central conductor, an insulating layer formed around the semiconducting layer and impregnated with insulating oil, and an outer semiconducting layer formed around the insulating layer An optical unit comprising a core-outer skin comprising a metal sheath layer formed around the semiconducting layer, a protective layer coated around the metal sheath layer, and an inner skin layer formed around the protective layer and extruded from a polyethylene material - An optical unit-outer skin formed on the inner skin and the outermost layer and comprising an outer skin layer extruded from a polyethylene material, and an optical fiber composite power cable composed of an optical fiber unit placed between the optical unit-inner skin and the optical unit-outer skin A plurality of power line units each composed of a conductor and an insulating layer covering the conductor, and a plurality of ground line units disposed between the adjacent power line units are disclosed in Korean Patent Laid-Open Publication No. 10-2015-0101221 No. 10-2015-0101221 and at least one or more optical fiber core wires and a tube on which the optical fiber core wire is mounted. An optical power signal cable for movement comprising an optical fiber unit, a signal line unit composed of a plurality of signal lines, and a sheath layer surrounding the power line unit, the ground line unit, the optical fiber unit, and the outside of the signal line unit is disclosed, Minute registration Patent Publication Registration No. 10-0899436, vinyl acetate resin as a powder and color enhancer, urethane resin as a binder, celluloid resin to improve heat resistance, and anti-blocking agent to prevent blocking, etc. to a certain thickness on the upper surface of the plastic stack Disclosed are a laminated insulating film for electric wire covering and a method for manufacturing the same, which are manufactured by laminating another plastic film on a plastic film coated with a coating material and coated with a laminated paint composition. However, the prior art has the inconvenience of using a joint pipe for every part bent at a right angle when laying cables in the field, and when a pipe made of plastic is used, the plastic pipe may be damaged by the load of the concrete. When a steel pipe is used, corrosion may occur due to moisture in the concrete, and since a separate manpower is mobilized to connect the cable, there is a factor that increases the labor cost, increases the construction time and construction cost of the building, and damages the cable And corrosion may occur, which may cause problems in that communication and electric current are not transmitted smoothly within the cable, and since the power cable and the communication cable are separately configured, the construction time is prolonged.

The present invention solves the problems of the prior art, prevents bending or disconnection of the communication cable and the power conductor in the center line of the composite cable including the communication cable and the power cable, and when installing or operating the composite cable, external In order to protect the internal communication cable and power conductor from the impact of the construction site or the impact and weight of concrete at the construction site, an aluminum interlock sheath that is spirally wrapped with an aluminum band resistant to shock and corrosion on the outer peripheral surface of the communication cable and power conductor An object of the present invention is to provide a composite cable formed by

As a solution for a composite cable including a communication cable and a power cable according to the object of the present invention, the main body is configured by mixing a communication cable and a power cable, and surrounds the communication line with two communication lines that are communication cables for communication inside. A shielding layer that protects communication devices and a communication grounding wire that blocks noise coming in from the outside, a fireproof material layer that surrounds the shielding layer and the communication grounding line to prevent high internal and external heat, and the fireproof material layer A braided layer using a stone plated wire or aluminum alloy wire, an insulating film layer formed to surround the braided layer, two power cables that are electric current flowing inside, a grounding wire, the insulating film layer, the power wire and the grounding wire are cross-sectional shapes An inclusion layer filled with an inclusion composed of a non-halogen resin is formed in between to maintain the phosphorus circle, and an insulating protective layer formed by surrounding the insulating film layer, the power wire and the ground wire and the outer surface of the insulating protective layer are made of an aluminum material It is composed including an outer layer formed by wrapping it with a curved band of The connection between the body and the pool box is completed by simply inserting the main body into the pool box hole of the pool box during the operation of combining the main body with the full box by additionally configuring the screw-type connectors having threads formed on both ends of the main body. The screw-type connector is configured to form a screw thread at the end of the connector so that it can be easily coupled to another connector. In addition, the screw-type connector can be changed to a ring-type connector, and the ring-type connector is formed in a ring shape unlike the screw-type connector having a thread, so that when the main body and another main body are coupled, it is firmly fastened and can be easily combined. . If the main body is installed by standardizing and standardizing the distance between the full box and another pool box as described above, the construction time is shortened and the cable is cut or extended because it can directly enter the full box without cutting or extending the main body on site. Reduces the use of safety equipment, which significantly reduces the occurrence of safety accidents. The insulating protective layer formed inside the outermost outer layer of the body consists of five layers, and from the innermost to the outermost, a polyester tape layer, a polypropylene tape layer, a celluloid resin layer, an insulating shielding layer, and a PVC layer. The polyester tape layer is formed of a polyester tape on the outside of the intervening material layer, the polypropylene tape layer is a tape formed of a polypropylene material is formed on the outside of the polyester tape layer, The celluloid resin layer is formed of celluloid resin to block internal or external heat to form a celluloid resin layer on the outside of the polypropylene tape layer, and the insulating shielding layer is formed with a copper tape on the outside of the celluloid resin layer and the PVC layer is formed of polyvinyl chloride (PVC) and formed on the outside of the insulating shielding layer. The insulating protective layer configured as described above is formed to protect the power line, ground line, communication line, and communication ground line formed inside, and is formed to block fire and heat generation inside or outside the body, communication noise, noise and shielding. . The outer layer is formed by using a selected one of aluminum or alloy material, and spirally winding a curved band having a cross section of ~, and interpolating and winding a portion of the recessed portion of the curved band that is wound ahead of the curved part of the curved band. make up The power line is formed of a power conductor and a power line insulator from the inside, the ground line is formed of a grounding conductor and a ground wire insulator from the inside, and the communication line is formed of a communication conductor and a communication line insulator from the inside, and the communication ground line is It is formed from the inside of the communication grounding conductor and the communication grounding wire insulator. The main body configured as above forms a communication cable and a power cable at the same time, so there is no need to separately work for a communication cable and a power cable in the field. It is easy to connect and combine the main body and the full box by forming a screw-type connector at both ends. In addition, a specific color is applied to the outer surface of the exterior layer using the entire painting, and it is applied differently according to the purpose of the body at the user's discretion. For example, a body used for firefighting may indicate that it is being used for firefighting by applying red on the outer surface of the exterior layer. In addition, a symbol or character may be marked on the outer surface of the exterior layer to indicate its use. As described above, if the outer surface color of the exterior layer is changed or marked according to the purpose of the main body, a large number of workers in the field can intuitively recognize the purpose of the main body, so that the work can be done quickly and accurately, and also in maintenance and management. Maintenance of the main body can be carried out simply and accurately. And, on the outer surface of the entire painted exterior layer, the length of the entire wire is marked at intervals of 5m, and the total length of the wire is marked, so that you can work smoothly and easily while checking the length of the remaining wires when working at the site.

According to the composite cable including the communication cable and the power cable of the present invention, since the communication cable and the power conductor are compositely formed on the inside of the outer layer made of aluminum, there is no need for a separate cable entry during cable work in the field, and the existing pipe Since it is not a method of inserting the communication cable and power cable inside, there is no possibility of damage to the communication cable and power conductor formed inside the composite cable, so the reliability of the cable work is high. It is possible to work with cables, and it has the effect of improving the straightness of the wiring by strengthening the tensile force by improving the sagging of the cable, which is a disadvantage of the existing cable construction. By forming connectors at both ends of the cable and connecting the connector to the full box hole, the main body and the full box are easily combined, so handling is easy when working with cables in the field. There is a significant reduction in construction cost. In addition, since the communication cable and the power cable are arranged together, there is an effect of increasing the convenience and efficiency of manufacturing the composite cable.

An embodiment of the present invention will be described in detail with reference to the following content, and in the following, when it is determined that a detailed description of a known function or configuration related to the present invention may unnecessarily obscure the gist of the present invention, the Detailed description has been omitted. In addition, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification. In detail, two communication lines, which are communication cables for communication, and a shielding layer that surrounds and shields the communication line, a communication ground line that protects communication devices and blocks noise coming from the outside, and the shielding layer and the communication ground line surround the A refractory layer wrapped to prevent high internal and external heat, a braided layer using a stone plated wire or aluminum alloy wire formed to surround the refractory layer, an insulating film layer formed to surround the braided layer, and power through which current flows inside An inclusion layer filled with an inclusion composed of a non-halogen resin is formed between the two power wires, which are cables for use, the ground wire, the insulating film layer, and the power wire and the ground wire to maintain the circular shape of the cross-section, and the insulating film layer and the power supply It consists of a main body including an insulating protective layer formed to surround the wire and the grounding wire, and an outer layer formed by wrapping the outer surface of the insulating protective layer with a curved band made of aluminum. The body is formed by wrapping the exterior layer with a curved band made of aluminum. The communication cable, which is the communication cable, may be any material as long as it is a material generally used for communication cables. The communication line insulator that surrounds and insulates the communication conductor is made of polyvinyl chloride or polypropylene to physically protect the communication conductor. The shielding layer surrounding and shielding the communication line uses a braided shielding method that forms a network with a copper wire or the like and configures the surrounding shielding wire, or uses a transverse winding shielding method that forms by winding a copper wire on the communication line in the same direction, or a communication line It is preferable to select and use any one from among those using a tape shielding method in which a metal tape such as aluminum or copper is wound on top. The feature of the shielding line is to block the influence of electrostatic induction or electromagnetic induction from the outside, so it is possible to prevent electromagnetic noise generated in the shielding line from being induced to the communication line. The communication grounding wire is composed of a communication grounding conductor and a communication grounding insulator from the inside, and the communication grounding conductor uses a copper wire formed of copper, and the communication grounding wire insulator is polychlorinated to physically protect the communication grounding conductor inside. Constructed from vinyl or polypropylene. The fire resistant layer serves to block or prevent high heat outside or inside the fire resistant layer by exhibiting fire resistant performance. It is preferable to use a mica tape composed of mica for the fireproof material layer. Although there are various types of the mica tape, since it can withstand up to 1,000° C., it can protect the communication line formed in the fire-resistant layer in case of a fire, so that it can transmit or receive an alarm signal. The braided layer is formed by using a stone plated wire or an aluminum alloy wire to form a mesh body and surround the refractory material layer using this. The braided layer is to shield the inner communication line from internal or external influences so that communication can be performed smoothly. The insulating film layer uses either silicone rubber (SR) or Teflon (fluororesin) or PVC (PolivinylChloride) or PE (Polyethylene) or polyurethane (Polyurethane, PUT) or PET (polyester). It is preferable to do The silicone rubber is an elastic solid that is fluid even at room temperature, has good heat resistance and cold resistance, has excellent electrical insulation, and has a heat resistance temperature of about 200°C. The Teflon is a fluorine-containing resin and is widely used in heat-resistant wires due to its excellent thermal and chemical properties. There are various types of fluororesins (FEP, PFA, ETFE, etc.) Therefore, it is preferable to use it according to the intended purpose. PVC is the most commonly used material for general insulated wires and wires used in automobiles. PE has excellent non-toxicity, water resistance, chemical resistance and insulation resistance, and is widely used as an insulation and covering material for communication, power, and device wires. Polyurethane has excellent mechanical strength such as tensile strength, tear strength, elongation and abrasion resistance, good workability, and is widely used for moving objects due to its excellent wear resistance, high elasticity and flexibility. PET is widely used for base film and laminex of heating film and has chemical resistance, low hygroscopicity, low thermal expansion, and excellent abrasion resistance. The power conductor and ground conductor are made of copper wire, and the power line insulator and ground wire insulator are made of polyvinyl chloride or polypropylene to physically protect the inner power and grounding conductors. The inclusion layer is filled with an inclusion composed of a non-halogen resin to maintain the shape of the cross-section of the cable formed of the power line, the ground line, the communication line, and the communication ground line in a circular shape, and the lines are uniformly arranged. As described above, when the non-halogen flame retardant resin is used for the inclusion layer, mechanical properties and flexibility can be maintained, and the body can be configured with excellent flame retardancy and high heat resistance. In addition, by using polyester for the inclusion layer to increase elasticity and durability, a main body formed of a power line, a grounding line, a communication line, and a communication grounding line can be configured. The insulating protective layer consists of five layers. It is composed of a polyester tape layer, a polypropylene tape layer, a celluloid resin layer, an insulating shielding layer, and a PVC layer from the innermost to the outside of the insulating protective layer, and the polyester tape layer includes a tape made of a polyester material as an intervening layer. Located on the outside, the polypropylene tape layer forms a tape made of a polypropylene material on the outside of the polyester tape layer, and the celluloid resin layer is formed of celluloid resin to block internal or external heat, so that the number of celluloid A backing layer is formed on the outside of the polypropylene tape layer, the insulating shielding layer is formed of copper tape on the outside of the celluloid resin layer, and the PVC layer is formed of polyvinyl chloride (PVC) on the outside of the insulating shielding layer. formed and composed in The insulating protective layer is formed to protect the power line, the ground line, the communication line, and the communication ground line formed inside from the outside, or is formed to protect the outside of the main body from high heat and fire generated inside. In addition, an LSZH layer can be additionally formed using LSZH (Low Smoke Zero Halogen) material for low toxicity and flame retardancy when a fire occurs on the outer surface of the insulating protective layer, which enables more reliable and efficient fire prevention. The LSZH (Low smoke zero halogen) material is a class of materials generally used for cable jackets in the wire and cable industry. do. That is, it is closely related to Flame Retardant. The outer layer is formed by winding a curved band having a cross-section of a shape of ~ in a spiral, and interpolating and winding a portion of the curved band depression wound with a curved portion of the curved band preceded by a selection of aluminum or alloy material. make up The exterior layer is made of an aluminum interlock exterior, is made of an aluminum material or an alloy material, and has elasticity and flexibility in order to give the same bending angle and flexibility of the internal power line and ground wire, communication line and communication ground wire as that of the exterior layer. do. That is, the metal strip forming the exterior layer is processed so that the cross-section becomes ∽ shape using a processing means such as a press or a jig to form a curved strip, and the processed curved strip is spirally wound around the outer circumferential surface of the insulating protective layer. . At this time, in the ∽ shape, which is the shape of the cross-section of the exterior layer, a curved portion with a convex upper surface is preceded, and the winding is wound by interpolating a portion of a depression with a convex lower surface of the wound surface band. The same form is possible. In the expansion, the ends of the recessed part and the curved part are caught with each other, so there is no gap, so that the curved band always wraps around the outside. The power line is formed of a power wire conductor and a power wire insulator from the inside, the ground line is formed of a ground wire conductor and a ground wire insulator from the inside, and the communication line is formed of a communication conductor and a communication line insulator from the inside, and the communication ground wire is an inside It is formed from the communication grounding conductor and the communication grounding wire insulator. A copper wire made of copper is used for the power conductor, ground wire, and communication grounding conductor, and any material generally used for a copper wire or communication cable can be used for the communication conductor. A specific color is applied to the outer surface of the exterior layer formed at the outermost part of the body using the entire painting, and the application is applied differently according to the purpose of the body at the user's discretion. For example, a body used for firefighting may indicate that it is being used for firefighting by applying red on the outer surface of the exterior layer. In addition, a symbol or character may be marked on the outer surface of the exterior layer to indicate its use. As described above, if the outer surface color of the exterior layer is changed or marked according to the purpose of the main body, a large number of workers in the field can intuitively recognize the purpose of the main body, so that the work can be done quickly and accurately, and also in maintenance and management. Maintenance of the main body can be carried out simply and accurately. And, on the outer surface of the entire painted exterior layer, the length of the entire wire is marked at intervals of 5m, and the total length of the wire is marked, so that you can work smoothly and easily while checking the length of the remaining wires when working at the site. A screw-type connector is formed at both ends of the body. The screw type connector is to simply couple the main body to the pool box hole formed on the side or front of the pool box. In general, at a construction site, a full box is formed at the point where cables that are formed by embedding or fixing in a wall or ceiling diverge or converge, and extend or divide the cables into several branches. At this time, the cable is connected to the pool box through the pool box hole formed on the front or side of the pool box, except for the length connected to the pool box, the cable is cut and used. And after cutting the cable, remove the insulator so that the conductors can be connected, and then insulate again using an insulating tape. Because of this kind of work, electrical work on site is delayed and takes a long time. Therefore, in the present invention, screw-type connectors are formed at both ends of the main body, and the distance between the full box and the full box is standardized during electrical work in the field. To avoid the need for cutting, connect the main body to the full box using a screw-type connector and connect the main body to another full box so that electrical work can be done easily and quickly. And the screw-type connector is configured to form a screw thread at the end of the connector so that it can be firmly and easily fastened when the main body and another main body are combined. Make sure that the connector and the connector can be firmly connected. When the ring-type connector is configured in a ring shape and inserted into the pool box hole formed on the side of the pool box, the ring-type connector is perfectly coupled to the pool box by the elastic support while passing through the pool box hole. That is, the ring-type connector passes through the full box hole with little force, but the ring-type connector cannot pass through the full box hole reversely due to the support formed on the side of the ring-type connector. In the present invention, the above embodiment is an example, and the present invention is not limited thereto. Anything that has substantially the same configuration as the technical idea described in the claims of the present invention and achieves the same effect is included in the technical scope of the present invention.

Claims (1)

In a cable composed by mixing a cable for complex communication and a cable for power, two communication lines, which are communication cables for communication, and a shielding layer that surrounds and shields the communication line, protects communication devices, and blocks incoming noise from the outside Communication A refractory material layer that surrounds the ground wire, the shielding layer, and the communication ground wire to prevent high internal and external heat, and a braided layer using a stone plated wire or aluminum alloy wire and the braided layer to surround and form the refractory material layer An inclusion layer filled with an inclusion composed of a non-halogen resin between the insulating film layer, two power cables, which are power cables through which current flows, and a grounding wire, and the insulating film layer, the power wire and the grounding wire to maintain the circular shape of the cross-section. and a body including an insulating protective layer formed to surround the insulating film layer, the power line and the grounding wire, and an outer layer formed by wrapping an aluminum curved band on the outer surface of the insulating protective layer, and the body of the main body The screw-type connector with threads formed on both ends is additionally configured to simplify the connection work between the main body and another body, and the screw-type connector is formed in a ring shape at both ends of the main body and a support is formed on the side. Composite cable, characterized in that it can be changed with a connector.