KR20200062655A - Photovoltaic composite low toxicity flame retardant wire and its structure - Google Patents

Abstract

The present invention shortens construction time by coating with a low-toxic flame retardant mixture after an aluminum interlock sheath including a single-mode and multi-mode optical fiber of quartz glass suitable for transmitting optical multiple signals of an optical communication system and a conductor insulated on an electric copper wire. It is related to the optical power composite low-toxic flame-retardant wire and its structure, which is configured to prevent disconnection due to load, etc. There is no need for separate wiring, and it is not a method of introducing optical communication cables and power cables in the existing piping, so there is no possibility of damage to the optical fibers and conductors formed inside the optical power composite wires, so the reliability of wire laying work is high and separate precedence is required. Since it does not perform wiring work, it is possible to easily and smoothly install wires, and it improves the straightness of wiring by improving the sagging phenomenon of the wires, which is a disadvantage of existing wire laying work. It is made of lightweight, corrosion-resistant, and durable aluminum or alloy material. Since the outer layer is constructed, it is easy to handle when laying electric wires in the field, and there is a significant reduction in construction costs through shortening the installation time in preparation for the existing wire wiring work. In addition, since the communication cable and the power cable using the optical fiber are disposed together, it is possible to increase the convenience and efficiency of manufacturing the composite wire.

Description

Photovoltaic composite low toxicity flame retardant wire and its structure

The present invention relates to an electric wire including an optical fiber and a power line, and more particularly, to include a single-mode and multi-mode optical fiber of a quartz glass suitable for transmitting an optical multiplex signal of an optical communication system and a conductor insulated on an electric copper wire. It relates to an optical interlocking composite low-toxic flame-retardant electric wire and its structure to shorten construction time and prevent breakage due to load by coating with a low-toxic flame retardant mixture after the aluminum interlock exterior.

In general, optical cables are coated with thin strands of 0.125mm in diameter, which are about the thickness of hair used for optical communication (a communication method that converts and transmits electrical signals into strong and weak light), and are coated with several strands to be used for communication. will be. The original name is optical fiber cable (OFC), but it is usually called an optical cable because it transmits communication signals using light. A light source such as a laser or LED is located at one end of the'optical fiber' and a light detector is located at the other end. Light is transmitted from one end to the other through glass fibers, and information is carried on a beam that comes out by controlling the light source. Looking at the cross section of the optical fiber, it is divided into two parts, and the central part is called a core and the outer part is called a clad.

When light passes through the optical fiber, the clad acts like a mirror and reflects the light. The reflected light passes through the core again and goes back to the clad and is reflected. By repeating this process, light is transmitted through the optical fiber. At this time, the optical fiber is coated so that light cannot escape from the clad.

The optical fiber is lighter and thinner than the coaxial cable, so it does not occupy much space, and has a bandwidth of giga-class, which is 10 billion times wider than the copper wire used previously. Although the transmission speed is very fast (theoretically, the speed of light), the transmission error is only one tenth of a billion, and it is frequently used in the field of data transmission that requires high-speed data transmission and reception and high reliability. In addition, the transmission loss is very low, the life span is semi-permanent, and since information is transmitted using light, there is an advantage that the network security is large without being subjected to electrical interference. As such, the optical cable is fast becoming incomparable to the existing coaxial cable and has no noise. For this reason, coaxial cables are gradually being replaced by fiber optic cables. Recently, it has been used most frequently for the purpose of digital audio signal transmission for A/V, whose demand has rapidly increased.

Meanwhile, a power cable that transmits electric power serves to transmit electricity from one end to the other by placing a conductor capable of passing electricity to the center line. If the power cable is classified as an exterior surface, there are soft skin, aluminum skin, jute winding, exterior (steel strip, steel wire), croroprene exterior, vinyl exterior, CD cable, etc., and if classified as a structural surface, belt type, H type, SL Type, SO type, inflow (OF), gas inlet, gas pressure, hydraulic pressure, BN cable, etc.

Looking at only a few of the above, the belt cable insulates the core wire with oil immersion paper and winds the oil immersion paper thereon. It was again covered with lead and sheathed as needed. It is rarely used above 20kV. The H cable is made of metal-coated paper or copper tape over the core insulation, and has the same exterior as the belt cable, and has good heat dissipation. The inlet cable (OF cable) is the center of the core wire in the case of a single core, and in the case of a three core, an oil passage is set in the inclusion, and a low-viscosity oil is supplied at a pressure higher than atmospheric pressure to maintain the immersion in a fully immersed state at 40 kV. It is used for the above high voltage. The gas pressure cable is a low-pressure nitrogen gas of about 0.7 ㎏/㎠ instead of the oil of the inflow cable. A triangular cross-section three-core cable or a H-type, SL-type cable, etc., is inserted into a special steel pipe and inserted into the steel pipe. Nitrogen gas of 12~14 ㎞/㎠ is sealed. Finally, the hydraulic cable is pressurized with a high-viscosity insulating oil of 14㎏/㎠ instead of the gas of the gas pressure cable.

An optical power composite cable that is composed of a mixture of the optical cable and the power cable described above is called an optical power composite cable. As a prior art for a cable composed of a mixture of the optical cable and the power cable, the outer layer is registered in Korean Patent Registration No. 10-1907160. A watertight exterior comprising an exterior unit that wraps an exterior metal material to form an exterior layer and a coating unit that wraps a coating material on the exterior layer to form a coating layer, and a water tight unit disposed between the exterior unit and the exterior unit to apply watertight powder to the exterior layer. A cable manufacturing apparatus and a method thereof are disclosed. Also, in Korean Patent Application 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 a cable, and an optical fiber of at least one core and Disclosed is an optical power composite cable made of a tube surrounding an optical fiber and comprising at least one optical fiber unit and a cable sheath arranged together with a power line, and there is an internal flow path in Korean Patent Registration No. 10-1102100. ), a core made of a central conductor, an inner semiconducting layer formed around the center conductor, an insulating layer formed around the semiconducting layer and impregnated with insulating oil, and an outer semiconducting layer formed around the insulating layer A core sheath layer formed of a portion and a metal sheath layer formed around the outer semiconducting layer, and a protective layer covered around the metal sheath layer, and an inner layer formed around the protective layer and extruded from a polyethylene material. An optical unit comprising an optical unit comprising an optical unit-inner skin and an outer skin layer formed on the outermost layer and extruding from a polyethylene material; and an optical fiber unit composed of an optical unit disposed between the optical unit-inner skin and the optical unit-skin. A power cable is disclosed, and is disposed between a plurality of power line units each composed of a conductor and an insulating layer covering the conductor in Korean Patent Application Publication No. 10-2015-0101221, and between the adjacent power line units. A plurality of ground wire units, at least one optical fiber core wire and the optical fiber core wire are mounted. A moving optical power signal cable comprising a fiber optic unit having a tube, a signal line unit composed of a plurality of signal lines, and a sheath layer surrounding the outer periphery of the power line unit, the ground line unit, the optical fiber unit, and the signal line unit is disclosed. It is.

However, when the cables are laid in the field, the prior arts have a hassle of using a joint pipe for each part bent at a right angle, and when using a pipe made of plastic, there is a problem that the plastic pipe may be damaged by the load of concrete. In the case of using steel pipe, corrosion may occur due to moisture in the concrete, and a separate manpower is mobilized to connect the wires, which causes a factor that increases the labor cost, increases the construction time and construction cost of the building, and damages the wires. And there is room for problems in which communication and current are not smoothly transmitted within the wire due to corrosion, and the construction time is extended because the power cable and the communication cable are separately configured.

The present invention solves the problems of the prior art, prevents the bending or disconnection of the optical fiber and the conductor in the center line of the optical power composite wire, and when installing or operating the optical power composite wire, concrete from external impact or construction site In order to protect the optical fiber and the conductor inside by the impact and weight of the optical fiber and the outer peripheral surface of the conductor, the purpose is to provide an optical power composite wire formed of an aluminum interlock sheath wrapped with a band of aluminum material that is resistant to shock and corrosion. , More specifically, the optical fiber for optical communication is placed inside the optical power composite wire manufactured by the flexible electric wire of Korean Patent Registration No. 10-0527360 registered by the applicant of the present invention and registered, and a conductor for transmission It is intended to provide an optical power composite low-toxic flame-retardant electric wire and a structure in which an aluminum interlock is formed on an exterior layer that is an outer peripheral surface.

As a solution for the optical power composite low-toxic flame-retardant wire and its structure according to the object of the present invention, there are 3 to 9 power conductors 11 and the power conductors 11 through which current flows inside the main body 1. A power cable 10 formed of a surrounding power line insulator 15 and two to five optical fiber core wires 21 passing light inside and an optical cable formed of an optical unit 25 surrounding the optical fiber core wire 21 (20) and a power ground wire (30) and a power ground wire (10) formed by a power ground wire conductor (31) that uses current and flows inside, and a power ground wire insulator (35) surrounding the power ground wire conductor (31). And a sheath body 50 surrounding the circumference including both the optical cable 20 and the power ground wire 30, and the outer surface of the sheath body 50 is formed by wrapping with a curved band made of aluminum and applying a specific color to indicate the purpose And, it is composed of an outer layer 60 that displays the entire length of the wire at regular intervals.

And the power line 10 is formed to adjoin two, the empty space between the power line 10 and the optical cable 20 and the power ground line 30 inside the sheath body 50 is polypropylene The inclusions 40 formed by filling them with PP strings, which are strings formed with, are formed, and LSZH layers are additionally formed by using low smoke zero halogen (LSZH) material on the outer circumferential surface of the sheath body 50.

In addition, the sheath body 50 has a polyester binder 51 formed from a polyester material from the innermost side and a shielding layer 52 and a shielding layer formed of copper tape on the outer surfaces of the polyester binder 51. Consists of a PP tape binder (53) formed of polypropylene (PP) tape on the outer surface of (52) and a PVC bedding (54) formed of polyvinyl chloride (PVC) on the outer surface of the PP tape binder (53). And, the exterior layer 60 is selected and used from any one of aluminum or alloy materials, and is formed by spirally winding a curved band having a cross section of ~, and a portion of the curved band recessed by leading the curved portion of the curved band It is configured to interpolate and wind up.

The color applied to the outer surface of the exterior layer 60 is selected by applying either yellow or green for communication, red for fire fighting, and blue or black for heating. The entire length of the electric wire is marked on the outer surface of the exterior layer 60 at 5 m intervals.

In addition, a communication ground line 70 may be additionally formed on the power line 10 and the optical cable 20 and the power ground line 30 formed inside the sheath body 50. The communication ground line 70 is composed of a communication ground line conductor 71 and a communication ground line insulator 75.

When the communication grounding conductor 71 is generally installed together with the optical cable 20, there is a possibility that an induction disturbance may occur in the optical cable 20 due to the current of the grounding cable 20, so that the communication grounding conductor insulator surrounding the outer surface of the communication grounding conductor 71 The configuration of (75) is configured so that induction interference does not occur in communication.

According to the inventor's optical power composite low-toxic flame-retardant wire, since the optical fiber and the conductor are formed together inside the exterior layer made of aluminum, there is no need for additional wiring when working in the field. Since there is no possibility of damage to the optical fiber and the conductor formed inside the photoelectric power composite wire because it is not a method of drawing in, the reliability of the wire laying work is high, and since there is no separate preceding wiring work, it is possible to easily and smoothly install the wire. It has the effect of improving the sagging phenomenon of the wires, which is a disadvantage of the electric wire laying construction, and improves the straightness of the wires.It is lightweight, corrosion-resistant, and consists of an exterior layer made of durable aluminum or alloy material, so it is easy to handle when installing wires in the field. , In preparation for the wiring work of the existing wires, it is possible to reduce the construction cost by reducing the installation time.

In addition, since the communication cable and the power cable using the optical fiber are disposed together, it is possible to increase the convenience and efficiency of manufacturing the composite wire.

1 is a plan view of the present invention, a photovoltaic composite low-toxic flame-retardant wire and its structure.
Figure 2 is a perspective view of the inventors of the photovoltaic composite low-toxic flame-retardant wire and its structure.
3 is a plan view of another embodiment of the inventors of the photovoltaic composite low-toxic flame-retardant wire and its structure.
Figure 4 is a perspective view of another embodiment of the present invention, a photovoltaic composite low-toxic flame-retardant wire and its structure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, when it is determined that a detailed description of known functions or configurations related to the present invention may unnecessarily obscure the subject matter of the present invention. The detailed description is omitted.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, the definition should be made based on the contents throughout this specification.

1 is a plan view of an optical power composite low toxicity flame retardant wire and its structure, FIG. 2 is a perspective view of an optical power composite low toxicity flame retardant wire and its structure, and FIG. 3 is a plan view of another embodiment of the optical power composite low toxicity flame retardant wire and its structure 4 is a perspective view of another embodiment of a low-power flame retardant wire and its structure,

Referring to Figures 1 and 2 in detail,

Power lines 10 formed of 3 to 9 power conductors 11 through which current flows inside and power line insulators 15 surrounding the power conductors 11 and 2 to 2 through which light passes through the inside The optical cable 20 formed of five optical fiber core wires 21 and the optical unit 25 surrounding the optical fiber core wire 21, and a power grounding conductor 31 and the power grounding conductor (current) flowing through the current and using copper wire ( 31) a power source ground line 30 formed of a power ground line insulator 35 surrounding the sheath body 50 surrounding the power line 10, the power cable 10, an optical cable 20 and a power ground line 30, both of which surround the sheath body 50 and the The outer surface of the sheath body 50 is composed of a body 1 comprising an outer layer 60 formed by wrapping with a curved surface made of aluminum.

The power conductor 11 is composed of a copper wire formed of copper, a current flows inside, and is composed of a power wire insulator 15 made of polyvinyl chloride (PVC) or polypropylene material on the outer circumferential surface.

The power line insulator 15 prevents insulation breakdown caused by an overcurrent flowing in the power wire conductor 11 in advance and blocks heat generated by the overcurrent from being radiated to the outside.

For this function, the power line insulator 15 can be constructed by adding polyvinyl chloride (PVC) or polypropylene (polypropylene) material to a fluorine resin having excellent heat resistance and electrical insulation.

In addition, glass fibers that are resistant to heat and chemicals and have high elasticity can be added. When the glass fiber and the fluorine resin are additionally composed of polyvinyl chloride (PVC) or polypropylene, the heat resistance, chemical resistance, and elastic resistance are improved, so that the power conductor 11 located inside can be safely protected.

The power lines 10 are configured to be adjacent to each other by attaching the power line insulators 15 to each other. The power line 10 is preferably composed of two to three in the optical power composite low-toxic flame-retardant wire as the main body (1).

The optical cable 20 consists of an optical fiber core wire 21 inside and an optical unit 25 outside. The optical fiber core wire 21 is preferably formed of one or more cores using glass or plastic fibers.

The optical unit 25 has a configuration similar to the power line insulator 15. In addition, the optical unit 25 wraps and protects the outer surface of the optical fiber core wire 21 used for communication, so it is composed of polyvinyl chloride (PVC) or polypropylene to physically protect the optical fiber core wire 21. , In order to avoid further interference with the communication, it is preferable to configure the shielding wire (shielding wire).

Since the probability of communication interference is significantly lowered in the optical cable 20 additionally configured with the shielding line, it may be configured adjacent to the power line 10 and the like.

The shielding wire is to shield the optical fiber core wire 21 by forming and wrapping a network with a copper wire or the like on the outer circumferential surface of the optical unit 25.

The two to three power lines 10 and the optical cable 20 are configured adjacent to the power supply ground line 30. The power ground line 30 requires a ground line because current flows through the power line 10. The main body 1 constitutes a power line 10 and a power ground line 30 together.

The power ground wire 30 is composed of a power ground wire conductor 31 and a power ground wire insulator 35. The power grounding conductor 31 is generally constructed using copper (Cu) copper wire, and because the probability of communication interference is high by the power grounding conductor 31, the power grounding conductor insulator 35 has the optical unit 25 ).

That is, it is composed of polyvinyl chloride (PVC) or polypropylene (polypropylene) so as to physically protect the power grounding conductor 31, and additionally composed of a shielding wire in order not to interfere with communication. desirable.

The power line 10 and the optical cable 20 and the power grounding line 30 are positioned to be adjacent to each other, and polypropylene is disposed in an empty space between the power line 10 and the optical cable 20 and the power grounding line 30. Polypropylene) is filled with a PP string, so that there is no empty space between the power line 10 and the optical cable 20 and the power ground line 30.

The outer circumferential surfaces of the power line 10, the optical cable 20, and the power ground line 30 are formed to surround the sheath body 50.

The sheath body 50 includes a polyester binder 51 formed of a polyester material from the innermost side and a shielding layer 52 and a shielding layer 52 formed of copper tape on the outer surfaces of the polyester binder 51. ) Consists of a PP tape binder (53) formed of polypropylene (PP) tape on the outer surface and a PVC bed (54) formed of polyvinyl chloride (PVC) on the outer surface of the PP tape binder (53).

The polyester binder 51, the shielding layer 52, the PP tape binder 53, and the PVC bedding 54 constituting the sheath body 50 are not burned for a long time when a fire occurs inside or outside the body 1 The flames are not easily emitted to the surroundings, and toxic substances can be suppressed.

On the outer surface of the sheath body 50, an LSZH layer may be additionally formed using a low smoke zero halogen (LSZH) material for low toxicity and flame retardancy in the event of a fire, which can be more reliably and efficiently prevented from fire. do.

The flame retardant (low flame zero halogen) material included in the outer surface of the sheath body 50 is a material classification generally used for cable jackets in the wire and cable industries, and the LSZH cable jacket is a high heat source. Consists of thermoplastic or thermosetting compounds that do not emit limited smoke and halogens when exposed to. In other words, it is closely related to Flame Retardant.

The exterior layer 60 is made of an aluminum interlock exterior, is made of an aluminum material or an alloy material, and provides flexibility and flexibility of the inner power conductor 11 and the optical fiber core 21 and the power ground conductor 31. In order to provide the same as the exterior layer 60, it is configured to have elasticity and flexibility. That is, the metal strip forming the exterior layer 60 is processed to form a curved section by using a processing means such as a press or a jig to form a curved band, and the sheath body 50 is formed by spirally processing the curved band. It is wound on the outer peripheral surface of

At this time, in the shape of the cross-section of the outer layer 60, the curved portion of the curved band with the convex upper surface leading to the convex shape is partially interpolated so as to be interpolated to be bent and bent by the curved portion and recessed portion. It is possible to form such as shrinking. In the expansion, the ends of each of the recessed portion and the curved portion are engaged with each other, so that a gap does not occur, so that the curved band always surrounds the outside.

In addition, a specific color is applied to the outer surface of the exterior layer 60 by using a whole color, the wire for communication is coated in yellow or green, the wire for fire fighting is coated in red, and the wire for heating is coated in blue or black. It is desirable to do.

If the color of the main body 1 is different according to the use of the wire as described above, a number of workers can intuitively recognize the use of the wire in the field, so that it can be performed quickly and accurately, and it is easy and accurate in maintenance management. Repairs can be made to the wires.

In addition, the length of the entire wire is marked on the outer surface of the entire painted exterior layer 60 at intervals of 5 m, and the entire length of the wire is indicated, so it is possible to perform smooth and simple work while checking the length of the remaining wire when working in the field. There will be.

Referring to Figures 3 and 4 in detail,

A communication ground line 70 is additionally formed on the power line 10 and the optical cable 20 and the power ground line 30 formed inside the sheath body 50.

The communication ground line 70 is composed of a communication ground line conductor 71 and a communication ground line insulator 75, and when the communication ground line conductor 71 is generally installed like an optical cable 20, the optical cable 20 due to the ground line current Since there is a possibility that an induction interference may occur, the communication ground line insulator 75 surrounding the outer surface of the communication ground wire conductor 71 is configured so that induction interference does not occur in communication.

The communication ground wire insulator 75 is made of polyvinyl chloride (PVC) or polypropylene, and a shielding wire to prevent communication interference. It is preferred to further configure.

Since the communication ground line 70 is additionally configured in the main body 1, the power line 10, the optical cable 20, the power ground line 30, and the communication ground line 70 are mixed in one wire to communicate in the field. Since the cables, power cables, and ground wires can be worked at once without separate work, construction time can be shortened, and labor costs can be prevented, resulting in a significant reduction in construction costs.

In the present invention, the above embodiment is only an example, and the present invention is not limited thereto. Anything that has substantially the same configuration and the same working effect as the technical idea described in the claims of the present invention is included in the technical scope of the present invention.

1. Main body
10. Power cable
11. Power conductor
15. Power line insulator
20. Optical cable
21. Optical fiber core wire
25. Optical Unit
30. Power Ground Wire
31. Power ground conductor
35. Power Ground Wire Insulator
40. Inclusions
50. Sische
51. Polyester Binder
52. Shielding layer
53. PP Tape Binder
54. PVC bedding
60. Exterior layer
70. Communication ground wire
71. Communication ground conductor
75. Communication ground insulator

Claims (6)

In the electric wire mixed with the optical fiber and the cable through which the current flows,
A power line 10 formed of 3 to 9 power conductors 11 through which current flows inside and a power line insulator 15 surrounding the power conductors 11;
An optical cable 20 formed of 2 to 5 optical fiber core wires 21 for passing light inside and an optical unit 25 surrounding the optical fiber core wire 21;
A power ground wire (30) formed of a power ground wire conductor (31) using a copper wire and a power ground wire insulator (35) surrounding the power ground wire conductor (31);
A sheath body 50 surrounding the periphery including both the power line 10 and the optical cable 20 and the power ground line 30;
The outer surface of the sheath body 50 is formed of a main body 1 including an outer layer 60 which is formed by wrapping with a curved band made of aluminum and applying a specific color to indicate its use, and displaying the entire length of the cable at regular intervals. Characterized in that the optical power composite low-toxic flame-retardant wire and its structure. The method according to claim 1,
The sheath body 50 includes a polyester binder 51 formed of a polyester material from the innermost side and a shielding layer 52 and a shielding layer 52 formed of copper tape on the outer surfaces of the polyester binder 51. ) Consisting of a PP tape binder (53) formed of polypropylene (PP) tape on the outer surface and a PVC bed (54) formed of polyvinyl chloride (PVC) on the outer surface of the PP tape binder (53). Light-power composite low-toxic flame-retardant wire and its structure. The method according to claim 1,
The exterior layer 60 is selected by using any one of aluminum or alloy materials, is configured by spirally winding a curved band having a cross section of ~, and interpolating a portion of the curved band depressed portion in which the curved portion of the curved band is preceded and wound. It characterized in that it is configured to be wound by winding an optical power composite low-toxic flame-retardant wire and its structure. The method according to claim 1,
The color applied to the outer surface of the exterior layer 60 is selected by applying either yellow or green for communication, red is applied for fire fighting, and blue or black is selected for heating. Optical power composite low-toxic flame-retardant wire and its structure, characterized in that the entire length of the electric wire that is the main body (1) on the outer surface of the exterior layer 60 is displayed at intervals of 5 m. The method according to claim 1,
The power line 10 is formed so as to adjoin two, and is made of polypropylene in an empty space between the power line 10 and the optical cable 20 and the power ground line 30, which are inside the sheath body 50. Characterized in that the LSZH layer is additionally formed by using low smoke zero halogen (LSZH) material on the outer circumferential surface of the sheath body 50 to form an inclusion 40 formed by filling it with a formed PP string. Light-power composite low-toxic flame-retardant wire and its structure. The method according to claim 1,
The main body (1) inside the sheath body (50) formed inside the power line (10) and the optical cable (20) and the power ground line (30) are composed of a communication ground conductor (71) and a communication ground line insulator (75). Optical power composite low-toxic flame-retardant wire and its structure, characterized in that further comprises a communication ground wire (70).

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