KR102278052B1 - Complex wire cable - Google Patents

Abstract

The present invention relates to a composite harness, comprising: a pair of communication cables; a pair of power cables; a center support; a plurality of close-fitting floating cables; a first resin coating layer; a plurality of breakage detection lines; a second resin coating layer; a plurality of inner tensile steel wires; a metal sheath layer; and an interference shield. The present invention not only can be used for power and communication purposes, but also has high durability and impact resistance compared to conventional harnesses, and excellent waterproofness, so it is possible to extend the lifespan.

Description

Composite harness {Complex wire cable}

The present invention relates to a composite harness, and more specifically, it can be used for power and communication purposes, as well as having high durability and impact resistance compared to the previous harness, excellent waterproofing, and thus can extend the lifespan, and furthermore, more functional than conventional harnesses It relates to a composite harness that can be reinforced so that it can be used for underwater flotation, can also detect breakage, and can provide fire-resistant properties.

When constructing a building, various types of electric wires, ie, cables, may be used. For example, a power cable for supplying power, a communication cable for communication, etc. may be used. These various types of cables are applied not only to buildings, but also to ships, which are large payloads.

Meanwhile, as described above, cables may be divided into several types according to their functions, and even if they have the same function, they may be divided and used individually or in bundles according to thickness or usage.

However, in consideration of the fact that if such multiple types of cables are used individually, they may become tangled and congested, and management difficulties will inevitably occur, recently it is called a composite cable, that is, a composite harness, and the functions of power and communication, for example, are reduced. Complex products are being marketed.

However, in the case of the existing composite harness, due to its structural limitations, it is weak to impact and has poor durability, and in particular, the lifespan may be reduced due to being vulnerable to waterproofing. In order to compensate for this, the present applicant submitted registration number 10 through the last patent application. -No. 2015481, technology related to harness has been registered.

However, this time, by adding a certain function to the last registered technology, we have come to propose a more efficient and functional composite harness.

Korean Intellectual Property Office Registration No. 10-2015481

The object of the present invention is not only that it can be used for power and communication purposes, but also has high durability and impact resistance compared to the previous harness and excellent waterproofing, so it can extend the lifespan, and furthermore, it can be used for underwater levitation because its functionality can be further strengthened than in the prior art It is possible to provide a composite harness that can detect breakage and provide fire-resistant properties.

The above object is a pair of communication cables; a pair of power cables intersecting with the pair of communication cables and concentrically disposed together with the pair of communication cables; a center support disposed in a center region of the communication cables and the power cables, the center support preventing the communication cables and the power cables from being deformed toward the center at the corresponding position; a waterproof coating layer disposed to integrally surround the communication cables and the power cables and providing a waterproof function; A plurality of communication cables and a plurality of power cables are disposed in the space between the outer side of the power cables and the waterproof coating layer, and the communication cables and the power cables are prevented from being deformed in the radial direction at the corresponding positions, while floating in the water a plurality of close-fitting floating cables; A first resin coating layer formed of polyethylene, polypropylene, or polyvinyl chloride (PVC) impregnated with a flame retardant material to protect the waterproof coating layer by being applied in a way that surrounds the outer portion of the waterproof coating layer; a plurality of breakage detection lines disposed on the outer circumferential surface of the first resin coating layer and for detecting damage to the structure; a second resin coating layer surrounding the outer circumferential surface of the first resin coating layer to a thickness that can cover the damage detection line, the surfaces in contact with the first resin coating layer being thermally fused to each other; a plurality of inner tensile steel wires supporting them from the outside of the communication cable, the power cable, the center support and the close-fitting floating cable, but providing a predetermined tensile force to resist breaking force; a plurality of outer tensile steel wires disposed on the radially outer side of the inner tensile steel wires and providing the tensile force together with the inner tensile steel wires; a metal sheath layer disposed radially outside the second resin coating layer and providing a non-flammable function; a ceramic sheath layer surrounding the metal sheath layer to provide a non-combustible function; It can improve the strength of the product while improving the bending characteristics, and includes an interference blocking part formed on the inner surface of the metal sheath layer to block external interference caused by electromagnetic waves generated from other adjacent cables or other electronic equipment. , The communication cable, a plurality of optical fibers; a coating tube wrapped around the optical fiber and formed of a material selected from among polybutylene terephthalate (PBT), polypropylene, polyethylene, or polyvinyl chloride (PVC) and painted in a color; and a waterproof gel filled in the coating tube, wherein the power cable is applied as a copper wire made of a conductive material, and a plurality of twisted bundle power lines are arranged in bundles and are formed in a twisted form; And electrically insulate the twisted bundle power line, low density polyethylene (LDPE), ethylene-alphaolefin copolymer, propylene-alphaolefin copolymer, ethylene-vinyl acetate (EVA) copolymer, ethylene-methylacrylate (EMA) copolymer , an ethylene-propylene monomer (EPM) rubber and a power line insulating layer formed of a rubber resin selected from the group consisting of polyolefin elastomer (POE), wherein the center support is a steel wire, a galvanized steel wire, or a fiber-reinforced plastic (FRP) It is formed with a tension line that provides a tensile force; and a foam made of a polymer or rubber material formed to surround the tension wire, and minimizing contact between the communication cables and the power cables to prevent damage to the communication cables and the power cables while preventing the communication cables from being damaged a skin layer for mitigating an impact applied to cables and the power cables, wherein the waterproof coating layer is formed to surround the communication cables and the power cables, and ethylene vinyl acetate copolymer and ethylene-propylene-diene rubber With respect to 100 parts by weight of the base resin containing, 80 to 300 parts by weight of a non-halogen flame retardant, 1 to 25 parts by weight of a flame retardant auxiliary, 0.5 to 8 parts by weight of a silane coupling agent, 0.5 to 10 parts by weight of a crosslinking aid, and 2 to 15 parts by weight of a crosslinking agent an inner waterproof coating layer comprising parts by weight; It is provided to be spaced apart from each other in the radial direction of the inner waterproof coating layer, and based on 100 parts by weight of the ethylene vinyl acetate copolymer, 80 to 250 parts by weight of a non-halogen-based flame retardant, 2 to 25 parts by weight of a flame retardant auxiliary, 0.5 to 8 parts by weight of a silane coupling agent parts, an outer waterproof coating layer comprising 0.5 to 10 parts by weight of a crosslinking aid and 2 to 15 parts by weight of a crosslinking agent; and a metal ring for maintaining rigidity interposed between the inner waterproof coating layer and the external waterproof coating layer and providing rigidity to the waterproof coating layer, wherein the interference blocking unit is formed in a mesh structure through conductive copper wires. blocking; and a second interference blocking unit plated with any one of tin (Sn), silver (Ag), and nickel (Ni) on the first interference blocking unit and formed thicker than the first interference blocking unit. is achieved by

The metal sheath layer may be formed of any one of copper, copper alloy, stainless steel, and incoloy 825.

The ceramic of the ceramic sheath layer is silicon dioxide (SiO2), alumina (Al2O3), calcium oxide (CaO), sodium oxide (Na2O), potassium oxide (K2O), titanium oxide (Ti2O) and zirconia based on 100 parts by weight of the polymer resin. 5 to 40 parts by weight of one or more metal oxides selected from the group consisting of (ZrO2).

The polymer resin may include a blend of 50 to 90 parts by weight of an ethylene-vinyl acetate copolymer resin and 10 to 50 parts by weight of an ethylene-vinyl acetate copolymer resin grafted with maleic anhydride based on 100 parts by weight of the polymer resin.

A steel wire boundary tape forming a boundary between the inner tensile steel wires and the outer tensile trunk lines may be further included.

According to the present invention, not only can it be used for power and communication purposes, but it can also be used for underwater levitation because it has high durability and impact resistance compared to the previous harness and excellent waterproofing, so it can extend the lifespan, and furthermore, the functionality can be further strengthened than before. There is an effect of being able to detect damage and providing strong characteristics against fire.

1 is a structural diagram of a composite harness according to an embodiment of the present invention.
Fig. 2 is an excerpt of a communication cable applied to the harness of Fig. 1;
Fig. 3 is an excerpt of a power cable applied to the harness of Fig. 1;
Fig. 4 is an excerpt of the area of the waterproof coating layer applied to the harness of Fig. 1;
5 is an excerpt of the first and second resin coating layers and the area of the breakage detection line.
Fig. 6 is an excerpt of an interference shielding area applied to the harness of Fig. 1;

Advantages and features of the present invention, and methods for achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms.

In the present specification, the present embodiment is provided to complete the disclosure of the present invention, and to completely inform those of ordinary skill in the art to which the present invention pertains to the scope of the present invention. And the invention is only defined by the scope of the claims.

Accordingly, in some embodiments, well-known components, well-known operations, and well-known techniques have not been specifically described to avoid obscuring the present invention.

Like reference numerals refer to like elements throughout. And the terms used (referred to) herein are for the purpose of describing the embodiments and are not intended to limit the present invention.

In this specification, the singular form also includes the plural form unless otherwise specified in the written word. In addition, elements and operations (acts) referred to as 'include (or include)' do not exclude the presence or addition of one or more other elements and operations.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs.

Also, terms defined in commonly used dictionary are not to be interpreted ideally or excessively unless defined.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a structural diagram of a composite harness according to an embodiment of the present invention, FIG. 2 is an excerpt of a communication cable applied to the harness of FIG. 1, FIG. 3 is an excerpt of a power cable applied to the harness of FIG. 1, FIG. 4 is 1 is an excerpt of the area of the waterproof coating layer applied to the harness of FIG. 1 , FIG. 5 is an excerpt of the first and second resin coating layers and the area of the breakage detection line, and FIG. 6 is an excerpt of the area of the interference shield applied to the harness of FIG.

Referring to these drawings, the composite harness 100 according to the present embodiment can be used for power and communication purposes, as well as having high durability and impact resistance compared to the previous harness, and excellent waterproofing, so that it can extend the lifespan, and furthermore, more functional than the prior art. It can be further strengthened so that it can be used for underwater levitation, can detect damage, and provide strong properties against fire.

Composite harness 100 according to this embodiment that can provide this effect is a pair of communication cables 110 and a pair of communication cables 110 and a pair of cross-positioned communication cables 110 together with A pair of concentrically arranged power cables 120 , the communication cables 110 and the power cables 120 are integrally disposed and provided with a waterproof coating layer 130 , and a waterproof coating layer 130 . ) may include first and second resin coating layers 151 and 152 formed on the radially outer side, a metal sheath layer 160 , and a ceramic sheath layer 161 .

The communication cable 110 includes a plurality of optical fibers 111 for communication, that is, transmission of an optical signal, and a sheathed tube 112 surrounding the optical fiber 111 . A waterproofing gel 113 (gel) may be filled in the coating tube 112 .

The coating tube 112 may be formed of a material selected from polybutylene terephthalate (PBT), polypropylene, polyethylene, or polyvinyl chloride (PVC), and may be painted in a color of color.

The power cable 120 is applied as a copper wire made of a conductive material, and a plurality of twisted bundle power lines 121 are arranged in bundles and are formed in a twisted shape, and a power line insulation layer 122 that electrically insulates the twisted bundle power lines 121. may include.

At this time, the power line insulating layer 122 is a low density polyethylene (LDPE), ethylene-alpha olefin copolymer, propylene-alpha olefin copolymer, ethylene-vinyl acetate (EVA) copolymer, ethylene-methyl acrylate (EMA) copolymer, It is formed of a rubber resin selected from the group consisting of ethylene-propylene monomer (EPM) rubber and polyolefin elastomer (POE). Accordingly, insulation properties may be further improved. The outer color of the power line insulating layer 122 may be different from each other.

The waterproof coating layer 130 is formed to surround the communication cables 110 and the power cables 120 .

The waterproof coating layer 130 includes an inner waterproof coating layer 131 surrounding the communication cables 110 and the power cables 120, and an external waterproof coating layer 132 that is provided to be spaced apart from each other in the radial direction of the inner waterproof coating layer 131. and a metal ring 133 for maintaining rigidity interposed between the inner waterproof coating layer 131 and the outer waterproof coating layer 132 and providing rigidity to the waterproof coating layer 130 .

The inner waterproof coating layer 131 is formed to surround the communication cables 110 and the power cables 120, and is based on 100 parts by weight of a base resin including ethylene vinyl acetate copolymer and ethylene-propylene-diene rubber, non-halogen-based. 80 to 300 parts by weight of a flame retardant, 1 to 25 parts by weight of a flame retardant auxiliary agent, 0.5 to 8 parts by weight of a silane coupling agent, 0.5 to 10 parts by weight of a crosslinking aid, and 2 to 15 parts by weight of a crosslinking agent.

And, the outer waterproof coating layer 132 is provided to be spaced apart from the radially outer side of the inner waterproof coating layer 131, with respect to 100 parts by weight of the ethylene vinyl acetate copolymer, 80 to 250 parts by weight of a non-halogen flame retardant, a flame retardant auxiliary agent 2 ~ 25 parts by weight, 0.5 to 8 parts by weight of a silane coupling agent, 0.5 to 10 parts by weight of a crosslinking aid, and 2 to 15 parts by weight of a crosslinking agent.

Due to the metal ring 133 for maintaining rigidity, since the waterproof coating layer 130 itself can have strong strength, it is possible to keep the external shape of the composite harness 100 constant, as well as to safely support the internal cables. have.

A center support 141 is provided in the center region of the communication cables 110 and the power cables 120 . The center support body 141 is formed of a resin material that has a certain rigidity but is bendable. The center support 141 prevents the communication cables 110 and the power cables 120 concentrically arranged on the outside thereof from being deformed toward the center.

The center support 140 is formed of a steel wire, a galvanized steel wire, or a fiber-reinforced plastic (FRP), and a tensile wire 141 providing a tensile force, and a foam of a polymer or rubber material is formed to surround the tensile wire 141 . is manufactured to prevent damage to the communication cables 110 and the power cables 120 by minimizing the contact between the communication cables 110 and the power cables 120 while preventing the communication cables 110 and the power cables from being damaged. It may include a skin layer 142 that mitigates the impact applied to the 120 .

In the space between the outer side of the communication cables 110 and the power cables 120 and the waterproof coating layer 130 , a plurality of contact-type floating cables 125 are provided.

In addition to the role of filling the empty space, the adhesion-type floating cable 125 prevents the communication cables 110 and the power cables 120 from being deformed outward in the radial direction.

In addition, the contact-type levitation cable 125 provides a function to be levitated when the harness 100 according to the present embodiment is used in water. Therefore, the harness 100 according to the present embodiment can be expanded to the extent that it can be used for underwater use.

The first resin coating layer 151 is applied in a way that surrounds the outer portion of the waterproof coating layer 130 , and protects the waterproof coating layer 130 . The first resin coating layer 151 is formed of polyethylene, polypropylene, or polyvinyl chloride (PVC) impregnated with a flame retardant.

A plurality of breakage detection lines 153 for detecting damage to the structure of the composite harness 100 according to the present embodiment are provided on the outer peripheral surface of the first resin coating layer 151 .

In addition, the second resin coating layer 152 is formed on the outside of the damage detection line 153 . The second resin coating layer 152 surrounds the outer circumferential surface of the first resin coating layer 151 to a thickness that can cover the damage detection line 153 , and surfaces in contact with the first resin coating layer 151 are thermally fused to each other.

The operation of the breakage detection line 153 will be described. The breakage detection line 153 is a passage for transmitting and receiving a signal for detecting structure damage of the composite harness 100 according to the present embodiment, and when the structure is damaged, the connection of the passage is cut off at that part.

For example, when the structure is normal, when a breakage detection signal, for example, a breakage detection signal, which is a pulse signal, is sent from one end of the breakage detection line 153, the signal arrives at the other end and is sensed. When the signal is sensed at the other end, the breakage of the structure It is judged that there is no

Conversely, when the structure is damaged, the damage detection line 153 is also damaged at the damaged portion of the structure, and in this case, the damage detection signal transmitted from one end is reflected and returned without being transmitted to the other end.

When the reflected signal is detected in this way, it can be considered that the structure is damaged. In addition, the location of the damage can be calculated using the difference between the transmission time and the detection time of the reflected signal.

As shown in FIGS. 1 and 4 , a plurality of inner tensile steel wires 181 , a plurality of outer tensile steel wires 182 , and a steel wire boundary tape 183 are provided inside the first resin coating layer 151 .

The inner tensile steel wire 181 supports them from the outside of the communication cable 110, the power cable 120, the center support 140 and the close contact levitation cable 125, but serves to provide a predetermined tensile force to resist the breaking force. do.

Similarly, the outer tensile trunk line 182 is disposed radially outside the inner tensile steel wires 181 and provides a tensile force together with the inner tensile steel wire 181 .

In addition, the steel wire boundary tape 183 forms a boundary between the inner tensile steel wires 181 and the outer tensile trunk lines 182 .

Give a little more explanation about these. The inner and outer tensile steel wires 181 and 182 are for securing the stability of the harness 100 satisfying the breaking strength of several or tens of tons, and a plurality of cables are united in the circumferential direction while having a constant pitch. is composed

The inner and outer tensile steel wires 181 and 182 are composed of two layers. At this time, the inner tensile steel wire 181 has an outer diameter of 2.0 mm, and the outer tensile steel wire 182 has an outer diameter of 1.5 mm. Due to this, the union pitch of the outer tensile steel wire 182 is the union of the inner tensile steel wire 181 . larger than the pitch. At this time, the pitch means that when composing one completed cable, a plurality of cables constituting the one completed cable are collected while twisting in one direction with respect to the center. At this time, the center is rotated 360 degrees to return to the original position. means the length Therefore, the pitch length of the outer tensile trunk line 182 is shorter than the pitch length of the inner tensile steel wire 181 .

And, since the inner and outer tensile steel wires 181 and 182 are the factors that have the greatest influence on the structural bending performance, if the combined pitch of the inner and outer tensile steel wires 181 and 182 is too large, the flexibility for bending decreases, and when the combined pitch becomes small, the flexibility is increased, but the outer diameter is increased, so it may be impossible to configure the outer shape of the cable completed in the manufacturing stage due to the strength of the inner and outer tensile steel wires 181 and 182, so a suitable design is required.

Meanwhile, a metal sheath layer 160 and a ceramic sheath layer 161 are provided on the outermost side of the harness 100 to provide a flame retardant, particularly a non-flammable function.

The metal sheath layer 160 is provided on the radially outer side of the interference blocking unit 170 to provide a non-flammable function of the harness 100 . To this end, the metal sheath layer 160 may be formed of any one of copper, copper alloy, stainless steel, and incoloy 825 .

And, the ceramic of the ceramic sheath layer 161 is silicon dioxide (SiO2), alumina (Al2O3), calcium oxide (CaO), sodium oxide (Na2O), potassium oxide (K2O), titanium oxide based on 100 parts by weight of the polymer resin ( 5 to 40 parts by weight of one or more metal oxides selected from the group consisting of Ti2O) and zirconia (ZrO2).

At this time, the polymer resin constituting the ceramic of the ceramic sheath layer 161 contains 50 to 90 parts by weight of an ethylene-vinyl acetate copolymer resin and 10 to 50 parts by weight of an ethylene-vinyl acetate copolymer resin grafted with maleic anhydride based on 100 parts by weight of the polymer resin. It may contain parts by weight of the blend.

In the case of this embodiment, it is possible to improve the strength of the composite harness 100 while improving the bending characteristics, and in order to block external interference by electromagnetic waves generated from other adjacent cables or other electronic equipment, the metal sheath layer ( An interference blocking unit 170 is additionally applied to the inner surface of 160 .

The interference blocking unit 170 includes a first interference blocking unit 171 formed in a mesh structure through conductive copper wires, and tin (Sn), silver (Ag), and nickel (Ni) in the first interference blocking unit 171 . ) may include a second interference blocking portion 172 that is formed thicker than the first interference blocking portion 171 plated with any one of.

The first interference blocking unit 171 is braided with a conductive copper wire to block external interference caused by electromagnetic waves. In particular, for the purpose of blocking internal/external electrical noise, the first interference blocking unit 171 is disposed in a mesh structure to block external interference caused by electromagnetic waves.

The second interference blocking unit 172 is a portion plated with any one of tin (Sn), silver (Ag), and nickel (Ni) on the first interference blocking unit 171 . Accordingly, the second interference blocking unit 172 is formed to be thicker than the first interference blocking unit 171 .

Tin (Sn), silver (Ag), and nickel (Ni) are for reinforcing the physical and mechanical properties of the first interference blocking unit 171 , and depending on the required properties to be reinforced, tin (Sn), silver (Ag) , nickel (Ni) may be used.

That is, when the second interference blocking unit 172 is plated with tin (Sn) on the first interference blocking unit 171 , it is possible to prevent corrosion of the first interference blocking unit 171 , and the second interference blocking unit 172 . ) is plated with silver (Ag) on the first interference blocking unit 171 , the conductivity of the first interference blocking unit 171 may be improved, and the second interference blocking unit 172 may be formed by the first interference blocking unit ( When the 171 is plated with nickel (Ni), the workability of the first interference blocking unit 171 may be improved.

According to this embodiment, which works with the structure as described above, it can be used for power and communication purposes, as well as has high durability and impact resistance compared to the previous harness, excellent waterproofing, and can extend the lifespan, and furthermore, more functional than conventional harnesses It can be strengthened so that it can be used for underwater flotation, can detect breakage, and provide fire-resistant properties.

As such, the present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such modifications or variations fall within the scope of the claims of the present invention.

100: composite harness 110: communication cable
120: power cable 125: close-fitting floating cable
130: waterproof coating layer 140: center support
151: first resin coating layer 152: second resin coating layer
153: damage detection line 160: metal sheath layer
161: ceramic sheath layer 170: interference blocking unit

Claims (5)

a pair of communication cables;
a pair of power cables intersecting with the pair of communication cables and concentrically disposed together with the pair of communication cables;
a center support disposed in a center region of the communication cables and the power cables, the center support preventing the communication cables and the power cables from being deformed toward the center at the corresponding position;
a waterproof coating layer disposed to integrally surround the communication cables and the power cables and providing a waterproof function;
A plurality of communication cables and a plurality of power cables are disposed in the space between the outer side of the power cables and the waterproof coating layer, and the communication cables and the power cables are prevented from being deformed in the radial direction at the corresponding positions, while floating in the water a plurality of close-fitting floating cables;
A first resin coating layer formed of polyethylene, polypropylene, or polyvinyl chloride (PVC) impregnated with a flame retardant material to protect the waterproof coating layer by being applied in a way that surrounds the outer portion of the waterproof coating layer;
a plurality of breakage detection lines disposed on the outer circumferential surface of the first resin coating layer to detect damage to the structure;
a second resin coating layer surrounding the outer circumferential surface of the first resin coating layer to a thickness that can cover the damage detection line, the surfaces in contact with the first resin coating layer being thermally fused to each other;
a plurality of inner tensile steel wires supporting them from the outside of the communication cable, the power cable, the center support and the close-fitting floating cable, but providing a predetermined tensile force to resist breaking force;
a plurality of outer tensile steel wires disposed on the radially outer side of the inner tensile steel wires and providing the tensile force together with the inner tensile steel wires;
a metal sheath layer disposed radially outside the second resin coating layer and providing a non-flammable function;
a ceramic sheath layer surrounding the metal sheath layer to provide a non-combustible function;
It can improve the strength of the product while improving the bending characteristics, and includes an interference blocking part formed on the inner surface of the metal sheath layer to block external interference caused by electromagnetic waves generated from other adjacent cables or other electronic equipment. ,
The communication cable is
a plurality of optical fibers;
a coating tube wrapped around the optical fiber and formed of a material selected from among polybutylene terephthalate (PBT), polypropylene, polyethylene, or polyvinyl chloride (PVC) and painted in a color; and
It contains a waterproof gel (gel) filled in the coating tube,
The power cable is
A twisted bundle power line applied as a copper wire made of a conductive material, a plurality of which are arranged in a bundle and formed in a twisted shape; and
Electrically insulate the twisted bundle power line, low density polyethylene (LDPE), ethylene-alphaolefin copolymer, propylene-alphaolefin copolymer, ethylene-vinyl acetate (EVA) copolymer, ethylene-methylacrylate (EMA) copolymer, A power line insulating layer formed of a rubber resin selected from the group consisting of ethylene-propylene monomer (EPM) rubber and polyolefin elastomer (POE),
The center support,
a tensile wire formed of steel wire, galvanized steel wire or fiber-reinforced plastic (FRP) and providing tensile force; and
It is formed to surround the tension wire and is made of a polymer or rubber foam material, and minimizes contact between the communication cables and the power cables to prevent damage to the communication cables and the power cables while preventing the communication cables from being damaged. and a skin layer that cushions the impact applied to the power cables,
The waterproof coating layer,
Formed to surround the communication cables and the power cables, with respect to 100 parts by weight of the base resin comprising an ethylene vinyl acetate copolymer and ethylene-propylene-diene rubber, 80 to 300 parts by weight of a non-halogen flame retardant, a flame retardant auxiliary agent 1 to 25 parts by weight, an inner waterproof coating layer comprising 0.5 to 8 parts by weight of a silane coupling agent, 0.5 to 10 parts by weight of a crosslinking aid, and 2 to 15 parts by weight of a crosslinking agent;
It is provided to be spaced apart from each other in the radial direction of the inner waterproof coating layer, based on 100 parts by weight of the ethylene vinyl acetate copolymer, 80 to 250 parts by weight of a non-halogen-based flame retardant, 2 to 25 parts by weight of a flame retardant auxiliary, 0.5 to 8 parts by weight of a silane coupling agent parts, an external waterproof coating layer comprising 0.5-10 parts by weight of a crosslinking aid and 2-15 parts by weight of a crosslinking agent; and
and a metal ring for maintaining rigidity interposed between the inner waterproof coating layer and the outer waterproof coating layer and providing rigidity to the waterproof coating layer,
The interference blocking unit,
a first interference blocking unit formed in a mesh structure through conductive copper wires; and
and a second interference blocking part plated with any one of tin (Sn), silver (Ag), and nickel (Ni) on the first interference blocking part and formed thicker than the first interference blocking part.
According to claim 1,
The metal sheath layer is a composite harness, characterized in that made of any one of copper, copper alloy, stainless steel and incoloy (incoloy) 825.
According to claim 1,
The ceramic of the ceramic sheath layer is silicon dioxide (SiO2), alumina (Al2O3), calcium oxide (CaO), sodium oxide (Na2O), potassium oxide (K2O), titanium oxide (Ti2O) and zirconia based on 100 parts by weight of the polymer resin. A composite harness comprising 5 to 40 parts by weight of at least one metal oxide selected from the group consisting of (ZrO2).
4. The method of claim 3,
wherein the polymer resin comprises a blend of 50 to 90 parts by weight of an ethylene-vinyl acetate copolymer resin and 10 to 50 parts by weight of an ethylene-vinyl acetate copolymer resin grafted with maleic anhydride based on 100 parts by weight of the polymer resin composite harness.
According to claim 1,
Composite harness further comprising a steel wire boundary tape forming a boundary between the inner tensile steel wires and the outer tensile trunk lines.

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