KR101659521B1 - Residential electric cable joint protection case - Google Patents
Residential electric cable joint protection case Download PDFInfo
- Publication number
- KR101659521B1 KR101659521B1 KR1020160067727A KR20160067727A KR101659521B1 KR 101659521 B1 KR101659521 B1 KR 101659521B1 KR 1020160067727 A KR1020160067727 A KR 1020160067727A KR 20160067727 A KR20160067727 A KR 20160067727A KR 101659521 B1 KR101659521 B1 KR 101659521B1
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- KR
- South Korea
- Prior art keywords
- electric cable
- underground
- protective case
- present
- tube
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/088—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
- H02G9/025—Coverings therefor, e.g. tile
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cable Accessories (AREA)
Abstract
An electric cable protective case for a residential house of the present invention comprises: an electric cable embedded in an underground or installed in a grounded apartment; And a protective case for an electric cable which has a certain shape and space to protect the electric cable from the external environment and which surrounds the electric cable, wherein the protective case for the electric cable has a structure to withstand external impact, The present invention provides a technique for implementing a function or a structure for implementing a waterproof function.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protection case for an electric cable for a residential house, and more particularly to a protection case for an electric cable, which has a certain shape and space for protecting an underground or ground electric cable from external environment, To a protection case for an electric cable for a residential house which is resistant to an external shock, has a soundproof and heat insulating function, and also realizes a waterproof function.
Generally, electric devices such as door phones, interphones, and lights installed in apartments and multi-family apartment buildings are installed by straight lines connecting the upper and lower layers of the electric devices and branching to each household through terminal boxes. The cable is generally inserted into the corrugated tube which protects the wire cable and fixed to the terminal box as a connector.
On the other hand, conduit pipes, gas pipelines, upper and lower water pipes, etc., in which the transmission and distribution wires are housed, are buried in underground, commercial and industrial parks. The reason why the underground railway is buried in the ground is due to the safety and the heat insulation. The underground railway buried in the ground for a long time should be repaired after a certain time after being corroded by breakage and penetration water due to its own aging.
However, the related art has a problem in that it can not provide a multi-purpose multi-function electric cable protection case for a dwelling house, such as being able to withstand external impacts, have a soundproof and heat insulating function, and realize a waterproof function.
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a protective case for an electric cable having a certain shape and space for protecting an underground or ground electric cable from the external environment, And which has a soundproof and heat insulating function, and which implements a waterproof function.
According to an aspect of the present invention, there is provided an electric cable protection case for a dwelling house, comprising: an electric cable embedded in a basement or installed in a grounded apartment; And a protective case for an electric cable which has a certain shape and space to protect the electric cable from the external environment and which surrounds the electric cable, wherein the protective case for the electric cable has a structure to withstand external impact, A structure for implementing a function or a structure for implementing a waterproof function.
The present invention has a technical effect of providing an electric cable protection case for a dwelling which is resistant to an external impact, has a soundproof and heat insulating function, and also implements a waterproof function.
1 is an exploded perspective view of a protection case of an electric cable for a residential home according to the present invention.
FIG. 2A is an exploded perspective view illustrating an inner state of an electric cable protection case for a dwelling house according to a first embodiment of the present invention.
Fig. 2B is a cross-sectional perspective view showing the shape of a soundproofing / insulating member for an electric cable in the internal constitution of Fig. 2A.
FIG. 3A is a cross-sectional view illustrating a waterproof structure of an inner cable of a second embodiment of the present invention. FIG.
3B is a cross-sectional view of a heat shrinkable tube for processing a cable terminal whose color changes according to a temperature change according to a third embodiment of the present invention.
4A is a cross-sectional view illustrating an internal structure of a condensation and leakage leak type sensor provided inside a protective case for an electric cable for a residential house according to the present invention.
FIG. 4B is a circuit diagram for explaining the principle of measuring condensation and water leakage in an electric cable protection case using a condensation and leakage leak type sensor according to the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 is an exploded perspective view of a protection case of an electric cable for a residential home according to the present invention.
A protective case (10) for an electric cable for a dwelling according to the present invention comprises a housing (10) for enclosing the outside of the electric cable so as to be able to be safely protected from an external environment (waterproof, soundproof, (For example, a case, a tube, a box, etc.), and the installed position may be used in the underground, inside or outside of the apartment, depending on the purpose of use.
1, the present invention relates to an electric cable protection case 10 (so-called 'underground pipe') in which an underground cable is embedded in the ground and an electric cable protection case 10 A
In this case, the electric
The
The connecting
The left and right fastening
In the present invention, the protection tube (20) is placed on the outer circumferential surface of the electric cable protection case (10) buried in the ground, and the knife of the excavator is directly connected to the protection tube It is possible to easily recognize that the electric cable
2A is an exploded perspective view showing an inner state of an electric cable protection case for a dwelling house according to a first embodiment of the present invention. Fig. 2B is a cross- As shown in FIG.
Referring to FIGS. 2A and 2B, the interior of the electric cable
2B, the soundproof
Since the
Meanwhile, the
In this case, since the
At this time, the
On the other hand, the light-and-heat insulating part (13) for an electric cable according to the present invention is inserted into the electric cable protective case (10) for a residential house as an inclined part on the outer side of the elastic member It can be easily inserted when it is inserted and not released after insertion.
At this time, the
Accordingly, the present invention can easily insert wires of various thicknesses by a conical insertion path without interfering with it, and it is possible to maintain an airtight state even when the wire is not inserted by the close insertion. When the wire is inserted, It is possible to maintain the airtight state by tightly adhering even when the electric wire is bent strongly so as to maintain the airtightness without being dependent on the number and thickness of the electric wires and to prevent sound insulation,
Further, it is formed of a flame-retardant elastic member, so that the fire is prevented from spreading through the conduit.
In addition, the light incidence part is inserted easily into the conduit since the diameter is narrow, and after the insertion, the part having a large diameter is prevented from being separated due to elasticity.
In addition, since the front and rear sides of the elastic member are formed symmetrically in the front and rear directions, it is possible to install the electric wire directly without dividing the front and rear sides, thereby reducing the possibility of user's mistakes and simplifying installation.
Hereinafter, the flame retardant thermoplastic composition used for the soundproof and
≪ Preparation of flame retardant thermoplastic composition >
The flame retardant thermoplastic composition according to the present invention can be prepared according to two different processes.
They can be prepared according to a two-step process:
In the first step, the coupling agent is prepared by simply mixing the two compounds.
Next, in the second step, the coupling agent prepared above is mixed with a flame retardant additive such as a copolymer of aluminum trihydrate and / or 2 magnesium hydroxide, an ethylenic monomer having ethylene and a polar functional group and also polyethylene to a melt.
It is not possible to have at least one of these two components in the composition according to the invention, such as polyethylene, although the aforementioned copolymer may not be present in the composition, and the coupling agent may be chosen especially from the copolymer and / And the like.
The compositions according to the present invention may also be prepared according to a one-step process wherein the components are mixed to produce a homogeneous composition and to perform any chemical reaction between the components.
These compositions can be prepared by conventional means using highly filled thermoplastic materials, for example by mixing various components via extrusion or blending.
An internal mixer, a cone or a twin-screw co-rotating extruder may be used. Preferably, the composition is prepared at a temperature above the melting point of the component and below the decomposition initiation temperature of the flame retardant.
Fillers, especially inorganic fillers, may be added to improve the thermomechanical strength of the composition. Nonlimiting examples that may be presented are silica, alumina, talc or calcium carbonate, or carbon nanotubes. Advantageously, modified or unmodified clays are used to meet the requirements of certain plastic flammability standards, such as UL94-V0 (self-extinction possible in up to 10 seconds, no ignition bubbles), which are mixed at the nanometer scale.
Plasticizers can be added to promote processing and improve the productivity of the composition and the method of making the structure.
Examples which may be mentioned are aromatic or naphthenic paraffin mineral oils. Plasticizers which may also be mentioned are phthalates, azelates, adipates and tricresylphosphates.
Whether a "non-drip" agent, such as a silicone-based product (PDMS) or a fluoro product, such as PTFE, is added to the composition will not depart from the scope of the present invention.
<Examples>
The present invention is a novel coupling agent for a thermoplastic flame retardant composition comprising maleic anhydride-grafted polyethylene having a melting point of greater than 115 캜 (centigrade), the coupling agent also being an ethylene / acrylate / maleic anhydride terpolymer And the proportion of the terpolymer corresponds to 33% to 99.5% by weight of the mixture forming the coupling agent.
According to an advantageous embodiment, the coupling agent according to the invention consists only of these two components: maleic anhydride-grafted polyethylene and ethylene / acrylate / maleic anhydride terpolymer.
Preferably, the proportion of the terpolymer falls between 34% and 67% by weight of the mixture. Even more preferably, the proportion of the terpolymer corresponds to 45% to 55% by weight of the mixture.
Advantageously, the abovementioned terpolymer is a terpolymer of ethylene, butyl acrylate and maleic anhydride.
Preferably, the aforementioned maleic anhydride-grafted polyethylene is a linear low density polyethylene.
Through such embodiments, the present invention relates to a composition comprising a first ethylene / acrylate / maleic anhydride terpolymer and, secondly, maleic anhydride-grafted polyethylene in a certain ratio, / RTI > has a very beneficial synergistic effect with respect to maintenance of mechanical performance quality while maintaining the other properties of the composition, regardless of the physical / high humidity conditions.
The invention proposes a thermoplastic composition which satisfies all the specific requirements for electrical cables, optical fibers and more generally insulating parts in the electrical and electrical engineering field, so that in the high humidity medium, the mechanical properties of the prior art materials It is possible to relieve the lethal deterioration of the apparatus.
FIG. 3A is a cross-sectional view illustrating a waterproof structure of an inner cable of a second embodiment of the present invention. FIG.
Referring to FIG. 3, a heat
The peeled
At this time, the heat
In addition, resin is injected into the heat
At this time, an injector (not shown) is used so that the resin can be easily injected into the heat
Forming the nozzle of the injector in the form of a needle is for injecting the resin while minimizing damage to the heat
Further, the injector is discharged at a high pressure by the resin contained therein by the compressed air supplied from the outside. As a result, the resin injected into the heat-
On the other hand, the resin according to this embodiment can use any one selected from polyvinyl chloride, phenol resin and silicone, and it is particularly preferable to use silicon.
Thus, the present invention has the effect of inserting a heat shrinkable tube into a portion where the sheath of the electric wire is peeled and injecting resin into the heat shrinkable tube through the compressed air to seal the electric wire to more tightly seal the electric wire .
3B is a cross-sectional view of a heat shrinkable tube for processing a cable terminal whose color changes according to a temperature change according to a third embodiment of the present invention.
Referring to FIG. 3B, the heat-
This heat
For example, the outer surface of the heat-
As a result, the heat-exporting tube for treating a cable terminal of the present invention adds a discoloring function of changing the color of a surface according to temperature to a heat-shrinkable tube, and when the cable is overheated, the color of the surface of the heat-shrinkable tube is also changed to check the surface color of the discolored heat- It is possible to determine the degree of overheating of the bolt terminal.
In addition, since the heat-shrinkable tube for treating a cable terminal of the present invention can be visually inspected for an overheated location, it can not be equipped with expensive overheat measuring equipment. However, the risk of internal fire Thereby contributing to the improvement of the stability of the operation of the control panel which is vulnerable to fire.
4A is a cross-sectional view illustrating an internal structure of a condensation and leakage leak type sensor provided inside a protective case for an electric cable for a residential house according to the present invention.
Referring to FIG. 4A, the condensation and leakage integrated
The
In this case, the first
The first
A plurality of holes h1 and h2 are formed in the
FIG. 4B is a circuit diagram for explaining the principle of measuring condensation and water leakage in an electric cable protection case using a condensation and leakage leak type sensor according to the present invention.
Referring to FIG. 4B, when
That is, the third resistor R3 is formed by the
In this case, the third current I3 has a total of 5uA due to, for example, five contacts.
A first resistor R1 is formed by the
In this case, the first current I1 has a total of 5uA due to the five contacts, and it is determined that the leakage current is one step.
The second resistor R2 is formed by the
In this case, the second current I2 has a total of 5uA due to the five contacts, and the sum of the first current I1 and the second current I2 is 10uA, so that the leakage current is determined to be two stages.
Accordingly, the present invention can easily detect the condensation state and the degree of leakage occurring at the same point by using the condensation and leak-type integrated type sensor. This is because the conventional condensation detector and the leak detector are relatively Installation cost and manufacturing cost are small.
While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention.
10: Electric cable protection case
11:
12a, 12b: front and rear side bending flanges
20: Protection tube
21: curved protrusion
22: air buffer
30: Connecting rubber ring
31: Bending flange insertion groove
40a, 40b: Right and left fastening rings
41: Anchor bolt
42: Fixing plate
42a: Anchor ball
43: Nuts
Claims (3)
And a protective case for an electric cable having a certain shape and space to protect the electric cable from an external environment and to house the electric cable therein,
The protective case for an electric cable,
It has a structure that can withstand external impact, a structure that implements a soundproof insulation function, or a structure that implements a waterproof function,
The protective case for an electric cable, which has a structure for implementing the sound insulation and heat-insulating function,
A conical insertion formed through the front portion of the body in a conical shape and into which the electric cable is inserted;
A tight insertion hole penetrating to communicate with the conical insertion path and formed in a state in which the electric cable is not inserted; And
And an inclined light incidence part on the outer side of the body to narrow the front side part.
In the protective case for an electric cable having a structure that can withstand the external impact,
An underground pipe made of a synthetic resin material, which is buried in the ground and has an underground line inside, a front and a rear side bending flange are formed at both ends, and a seat back is formed entirely around the outer periphery;
A rubber tube of a ring type sandwiched between the seat back of the underground pipe and a curved protrusion protruding outwardly in a curved shape is formed on the outer circumference of the tube, ;
Wherein a bending flange insertion groove for enclosing and sealing a front side bending flange of another underground tube closely attached to a rear side bending flange of the underground tube is formed at an inner peripheral edge of a ring body made of a rubber material, A connecting rubber ring enclosing and sealing; And
And a pair of anchor bolts protruding outward are formed at both ends of the ring body so as to surround the outer surface of the connecting rubber ring. The anchor bolts are fastened and fixed by nuts by a fixing plate having an anchor holes into which the respective anchor bolts are respectively inserted And a left and right tightening rings for preventing the flow of the front and rear bent flanges of the underground pipe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020160067727A KR101659521B1 (en) | 2016-05-31 | 2016-05-31 | Residential electric cable joint protection case |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160067727A KR101659521B1 (en) | 2016-05-31 | 2016-05-31 | Residential electric cable joint protection case |
Publications (1)
Publication Number | Publication Date |
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KR101659521B1 true KR101659521B1 (en) | 2016-09-23 |
Family
ID=57047408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020160067727A KR101659521B1 (en) | 2016-05-31 | 2016-05-31 | Residential electric cable joint protection case |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102684134B1 (en) * | 2024-01-02 | 2024-07-10 | 이헌관 | branching connector |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100697645B1 (en) * | 2006-11-28 | 2007-03-20 | 주식회사 배산엔지니어링 | Structure of protective pipe for underground cable |
KR20080093862A (en) | 2007-04-17 | 2008-10-22 | 가부시기가이샤쯔바기모도체인 | Tube type cable or the like protection and guide device |
KR20090081480A (en) * | 2008-01-24 | 2009-07-29 | (주)상지엔지니어링건축사사무소 | Protection tube for subterranean cable of apartment house |
-
2016
- 2016-05-31 KR KR1020160067727A patent/KR101659521B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100697645B1 (en) * | 2006-11-28 | 2007-03-20 | 주식회사 배산엔지니어링 | Structure of protective pipe for underground cable |
KR20080093862A (en) | 2007-04-17 | 2008-10-22 | 가부시기가이샤쯔바기모도체인 | Tube type cable or the like protection and guide device |
KR20090081480A (en) * | 2008-01-24 | 2009-07-29 | (주)상지엔지니어링건축사사무소 | Protection tube for subterranean cable of apartment house |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102684134B1 (en) * | 2024-01-02 | 2024-07-10 | 이헌관 | branching connector |
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