WO2018174461A1 - Revêtement isolant de protection de fil électrique - Google Patents

Revêtement isolant de protection de fil électrique Download PDF

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Publication number
WO2018174461A1
WO2018174461A1 PCT/KR2018/002982 KR2018002982W WO2018174461A1 WO 2018174461 A1 WO2018174461 A1 WO 2018174461A1 KR 2018002982 W KR2018002982 W KR 2018002982W WO 2018174461 A1 WO2018174461 A1 WO 2018174461A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric wire
protrusion
coupled
fixing
contact
Prior art date
Application number
PCT/KR2018/002982
Other languages
English (en)
Korean (ko)
Inventor
임정훈
임서정
배상우
Original Assignee
주식회사 거성에코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 거성에코 filed Critical 주식회사 거성에코
Publication of WO2018174461A1 publication Critical patent/WO2018174461A1/fr

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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
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • 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
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H02G3/0418—Covers or lids; Their fastenings

Definitions

  • the present invention relates to an insulation cover for protecting the wire, and more particularly, is coupled to the outside of the wire to protect the wire, including the high-voltage cable from external contact, etc., has excellent bonding and insulation properties, such as snow, rain, wind, etc.
  • the present invention relates to an insulation cover for protecting wires that does not easily corrode even after long-term exposure from environmental factors.
  • trees near the power transmission tower such as electric poles and high-voltage lines on the roadside is lush, so that the covering of the wire is peeled off, resulting in an electric shock due to a short circuit.
  • Insulation cover used to protect the electric wire is to be coupled to and separated by the worker to climb the electric pole to open the opening of the insulating cover to the area where the wire is connected.
  • Patent Document 1 An example of such a technique is disclosed in Patent Document 1 below.
  • Patent Document 1 in the wire protection tube made of an insulator wrapped around the wire, the protective tube, the body portion is formed to wrap and protect the wire, on both sides of the body portion is formed to face the hook and the coupling groove facing each other elastically coupled
  • a wire protection tube characterized in that the coupling protrusion and the coupling recess is configured.
  • An object of the present invention is to solve the problems as described above, when using the insulation cover to reinforce the adhesion by a plurality of contact protrusions and the insertion groove, and the fixing projections are coupled to the three points of the fixing groove portion Accordingly, an object of the present invention is to provide an insulating cover for protecting a wire that can be firmly coupled without a gap.
  • an object of the present invention is to provide an insulation cover for protecting a wire that can provide an insulation effect by a space forming a plurality of air layers formed by coupling a close protrusion to an insertion groove.
  • Insulating cover for protecting the wire according to the present invention for achieving the above object is formed to correspond to each other in the hollow body 10 and the cut-out portion 11 formed in the longitudinal direction of the body 10 to wrap and protect the wire
  • the coupling portion 20 is formed to extend outward along the longitudinal direction of the body 10 on one side of the cutout 11, the inner side
  • a first extension part 21 having a plurality of contact protrusions 211 protruding from each other at a predetermined interval and a fixing protrusion 212 protruding at one end thereof;
  • a plurality of insertion grooves 221 and the fixing protrusions 212 which are formed along the lengthwise direction of the first extension part 21 on the other side of the cutout part 11, into which the contact protrusion 211 is inserted. It is characterized in that it comprises a second extension portion 22 having a fixing groove 222 is inserted and locked.
  • the body 10 and the coupling portion 20 is 70 to 80% by weight of polyurethane resin, 10 to 20% by weight of styrene butadiene-styrene block copolymer, 5 to 10% by weight of fluororesin and 2 to 5% by weight of aluminum hydroxide. It is characterized by including the%.
  • the fixing protrusion 212 includes a stepped portion 212a extending in a direction orthogonal to the first extension portion and a protrusion 212b protruding in a triangle shape at an end of the stepped portion 212a.
  • the fixing groove 222 is formed in communication with one side of the rectangular groove 222a and the groove 222a formed to have a size corresponding to the size of the protrusion 212b so that the rear surface of the protrusion 212b is caught. It characterized in that it comprises a hook portion 222b is fixed.
  • the width (W1) to form the insertion groove 221 is formed to be wider than the width (W2) that the contact protrusion 211 is formed to protrude, the contact protrusion 211 is coupled to the insertion groove 221 is in close contact
  • Constant spaces S1 and S2 are formed between the side surfaces 213a and 231b of the protrusion 211 and the side surfaces 223a and 223b of the insertion groove 221, and the front surface 214 and the insertion groove of the close protrusion 211.
  • Corresponding surfaces 224 of 221 may be in contact with each other.
  • the protruding portion 212b of the fixing protrusion 212 has the tip 215 contacting the intermediate point of the corresponding surface 224 of the recess 222a, and the side surfaces 216 and 216a of the protruding portion 212b are It is characterized in that it is coupled to contact with the side (226, 226a) of the recess 222a.
  • edge portion of the contact protrusion 211 and the edge portion of the insertion groove 221 is characterized in that the curved surface (a, b, c, d, e, f, g, h).
  • the insulation cover for protecting the wire according to the present invention, as well as reinforcing the adhesion by a plurality of adhesion protrusions and the insertion groove as well as the fixing projections to be in contact with the fixed groove portion can be firmly coupled without gaps, excellent It protects wires by maintaining airtightness.
  • the fluororesin is mixed with the polyurethane resin to provide excellent insulation and to prevent corrosion by blocking penetration of ultraviolet rays or moisture.
  • FIG. 1 is a perspective view showing an insulating cover for protecting the wire according to the present invention.
  • Figure 2 is a front view showing a coupled state of the insulating cover for protecting the wire according to the present invention.
  • Figure 3 is a perspective view showing an open state of the insulating cover for protecting the wire according to the present invention.
  • FIG. 4 is a front view showing the insulating cover for protecting the wire according to FIG.
  • FIG. 5 is a cross-sectional view showing an insulating cover for protecting the wire according to the present invention.
  • Figure 6 is an enlarged view showing a coupling state of the fixing protrusion according to the present invention.
  • fixing protrusion 212a stepped portion
  • FIG. 1 is a perspective view showing an insulating cover for protecting the wire according to the present invention
  • Figure 2 is a front view showing a coupling state of the insulating cover for protecting the wire according to the present invention
  • Figure 3 is an opening of the insulating cover for protecting the wire according to the invention
  • Figure 4 is a perspective view showing a state
  • Figure 4 is a front view showing the insulation cover for protecting the wire according to Figure 3
  • Figure 5 is a cross-sectional view showing the insulation cover for protecting the wire according to the present invention.
  • the insulation cover for protecting the wire according to the present invention is a hollow body 10 for wrapping and protecting the electric wire, and in the cut-out portion 11 formed in the longitudinal direction of the body 10 It includes a coupling portion 20 is formed to correspond to each other.
  • the body 10 is formed of a hollow circular body to surround the outside of the wire, and is installed on the wire by opening to both sides through the cutout portion 11 formed in the longitudinal direction of the body 10 to protect the wire.
  • the body 10 is preferably made of a synthetic resin material of a flexible material to surround the wire.
  • the body 10 and the coupling portion 20 is 70 to 80% by weight of polyurethane resin, 10 to 20% by weight of styrene butadiene-styrene block copolymer, 5 to 10% by weight of fluororesin and aluminum hydroxide 2 5 wt%.
  • the polyurethane resin is excellent in tensile strength and wear resistance, and is commonly used in almost all fields of polymer materials such as plastics, paints, adhesives, and synthetic leathers.
  • the polyurethane resin content is less than 70% by weight, the effect of improving tensile strength and abrasion resistance is insignificant.
  • the polyurethane resin content is more than 80% by weight, the ductility is strong and deformation is easily caused by the load.
  • the styrene-butadiene-styrene block copolymer is used to improve the hardness, specific gravity and injection processability of the polyurethane resin.
  • the content of the styrene-butadiene-styrene block copolymer is less than 10% by weight, injection processability is lowered, and if it exceeds 20% by weight, there is a problem that wear resistance is lowered.
  • the fluorocarbon resin is also called teflon resin, and has low air permeability and excellent electrical insulation, heat resistance, oil resistance, and non-tackiness. Therefore, there is an advantage that it is possible to ensure stable insulation performance even in contact with the liquid.
  • fluorine resin is a crystalline polymer with a melting point of 327 ° C. Its continuous use temperature is 260 ° C, and has excellent heat resistance that can be used stably from low temperature to high temperature. Will be.
  • the content of the fluororesin is less than 5% by weight, the insulating effect is lowered, if it exceeds 10% by weight there is a problem that the workability of the resin composition is lowered.
  • the aluminum hydroxide is used to prevent oxidation and corrosion.
  • the content of the aluminum hydroxide is less than 2% by weight, the oxidation and corrosion protection effects are insignificant, and when the content of the aluminum hydroxide is more than 5% by weight, curing becomes faster and workability is lowered.
  • the coupling part 20 includes a first extension part 21 and a second extension part 22 formed to correspond to each other in the cutout part 11 of the body 10.
  • the first extension portion 21 is formed to extend outward along the longitudinal direction of the body 10 on one side of the cutout (11).
  • the first extension part 21 has a plurality of contact protrusions 211 protruding at a predetermined interval therein and fixing protrusions 212 protruding at one inner end thereof.
  • the close contact protrusion 211 is formed extending in the direction orthogonal to the first extension portion 21, preferably made of a square or circular shape.
  • the adhesion protrusion 211 serves to reinforce the adhesion while being closely coupled to the insertion groove 221 formed in the second extension portion 22 when the first extension portion 21 and the second extension portion 22 are coupled to each other. .
  • the fixing protrusion 212 includes a stepped portion 212a extending in a direction orthogonal to the first extension portion 21 and a protrusion 212b protruding in a triangle shape at an end of the stepped portion.
  • FIG. 6 is an enlarged view illustrating a coupling state of the fixing protrusion according to the present invention.
  • the protrusion 212b of the fixing protrusion 212 has a tip 215 in the middle of the corresponding surface 224 of the recess 222a. Contact point.
  • side surfaces 216 and 216a of the protrusion 212b are coupled to the side surfaces 226 and 226a of the recess 222a.
  • the second extension part 22 extends along the longitudinal direction of the body 10 on the other side of the cutout 11.
  • the second extension part 22 has a plurality of insertion grooves 221 into which the contact protrusion 211 is inserted and a fixing groove part 222 into which the fixing protrusion 212 is inserted and locked.
  • the insertion groove 221 is preferably formed in the same shape as the shape of the close contact protrusion 211, in particular formed in a width larger than the width of the close contact protrusion 211, the close contact protrusion 211 is coupled to the layer at the same time A plurality of spaces S1 and S2 are formed, and an insulation effect can be obtained by the spaces S1 and S2.
  • the fixing groove 222 is formed in communication with one side of the rectangular groove portion 222a and the groove portion 222a formed to have a size corresponding to the size of the protrusion portion 212b, so that the rear surface of the protrusion portion 212b is fixed. It includes a hook portion 222b.
  • the protrusion 212b of the fixing protrusion 212 when the protrusion 212b of the fixing protrusion 212 is coupled to the groove portion 222a, the protrusion 212b, which has been contracted, is seated on the groove portion 222a and is returned to its original state while being rearward of the protrusion 212b. This hook is caught and firmly coupled.
  • interval of space S1, S2 is not limited, It is preferable to form in 1.0-1.5 mm range.
  • the present invention primarily reinforces the adhesion force by the plurality of contact protrusions 211 and the insertion groove 221, and as the second fixed projections 212 are coupled to the three points of the fixed groove portion to be contacted without a gap Can be firmly combined.
  • the corner portion of the contact protrusion 211 is formed of a rounded surface (a, b, c, d) of a predetermined radius of curvature,
  • edge portion of the insertion groove 221 is formed of curved surfaces (e, f, g, h) rounded to a constant radius of curvature.
  • the curved surfaces (a, b, c, d, e, f) is to suppress the concentration of the electric shock to prevent electrical degradation thereby improving the durability of the insulating cover.
  • the radius of curvature for forming the curved surfaces a, b, c, d, e, and f is not limited.
  • the present invention wraps and covers the electric wire with a body 10 that can block the penetration of ultraviolet rays or moisture, and prevent corrosion, and the position by the combination of the first extension portion 21 and the second extension portion 22. Fix it.
  • the contact protrusions 211 are formed in the plurality of insertion grooves 221 formed in the second extension portion 22, respectively. While tightly coupled to reinforce the adhesion. In addition, it may provide an insulation effect by the space (S2, S2) to form a plurality of air worm formed while the close contact 211 is coupled to the insertion groove (221).
  • the protrusion 212b of the fixing protrusion 212 is the intermediate point and side surfaces 226, 226a of the groove 222a, the corresponding surface 225 of the fixing groove 212. Are coupled to each contact. Therefore, the protrusions 212b may be firmly coupled without flow by contacting the three points of the recesses 222a, respectively.
  • the mixture was prepared by stirring 70% by weight of polyurethane resin, 20% by weight of styrenebutadiene-styrene block copolymer, 5% by weight of fluororesin, 2% by weight of aluminum hydroxide, and 3% by weight of other binder to have viscosity.
  • the prepared mixture was introduced into an extruder to prepare an insulation cover for protecting a wire having a thickness of 3 mm.
  • the mixture was prepared by stirring 70% by weight of polyurethane resin, 20% by weight of styrenebutadiene-styrene block copolymer, 6% by weight of fluororesin, 2% by weight of aluminum hydroxide, and 2% by weight of other binder to have viscosity.
  • the prepared mixture was introduced into an extruder to prepare an insulation cover for protecting a wire having a thickness of 3 mm.
  • the mixture was prepared by stirring 70% by weight of polyurethane resin, 20% by weight of styrenebutadiene-styrene block copolymer, 7% by weight of fluororesin and 2% by weight of aluminum hydroxide, and 1% by weight of the other binder to have viscosity.
  • the prepared mixture was introduced into an extruder to prepare an insulation cover for protecting a wire having a thickness of 3 mm.
  • Polyurethane resin wire insulated cover supplied to KEPCO was purchased and used.
  • test example shows the experimental results comparing the characteristics of the Examples and Comparative Examples according to the present invention to more easily understand the characteristics of Examples 1 to 3 according to the present invention.
  • Tensile strength test was conducted using a universal testing machine in accordance with KS M6518.
  • the corrosion resistance test was carried out using the salt spray test according to KS D9502.
  • Examples 1 to 3 are excellent in tensile strength, insulation and corrosion resistance, while Comparative Example is inferior in tensile strength, leakage current occurs in the insulation test, and corrosion occurs in the corrosion resistance test. I could see.
  • Insulating cover for protecting the wire according to the present invention, as well as reinforcing the adhesion by a plurality of contact protrusions and the insertion groove, as well as the fixing projections to be in contact with the fixing grooves can be firmly coupled without gap, maintaining excellent airtightness It has the effect of protecting the wire, so it is highly applicable to the industry.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Insulating Bodies (AREA)

Abstract

La présente invention concerne un revêtement isolant de protection de fil électrique et, plus spécifiquement, un revêtement isolant de protection de fil électrique, qui : est couplé à une partie externe d'un fil électrique de façon à protéger le fil électrique d'un contact externe ; présente d'excellentes propriétés de couplage et d'isolation ; et ne corrode pas facilement même après une exposition sur le long terme à des facteurs environnementaux externes (neige, pluie, vent, et similaire). Le revêtement isolant de protection de fil électrique, selon la présente invention, comprend : un corps creux pour recouvrir et protéger un fil électrique ; et une partie de couplage formée pour correspondre à une partie découpée, qui est découpée dans la direction longitudinale du corps et couplée à la partie découpée, la partie de couplage comprenant : une première partie étendue s'étendant vers l'extérieur dans la direction longitudinale du corps à partir d'un côté de la partie découpée, et ayant une pluralité de saillies de contact étroit faisant saillie à une distance prédéterminée à partir du côté interne de celle-ci, et une saillie de fixation faisant saillie à partir d'une extrémité du côté interne de celle-ci ; et une seconde partie étendue s'étendant dans la direction longitudinale du corps à partir de l'autre côté de la partie découpée, et ayant, sur le côté interne de celle-ci, une pluralité de rainures d'insertion dans lesquelles les saillies de contact étroit sont insérées et une partie de rainure de fixation dans laquelle la saillie de fixation est insérée et est prise et fixée.
PCT/KR2018/002982 2017-03-20 2018-03-14 Revêtement isolant de protection de fil électrique WO2018174461A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0034936 2017-03-20
KR1020170034936A KR101761602B1 (ko) 2017-03-20 2017-03-20 전선 보호용 절연커버

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WO2018174461A1 true WO2018174461A1 (fr) 2018-09-27

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Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
KR101995893B1 (ko) 2019-01-09 2019-07-04 (주)웅진엔지니어링 전선 방호용 절연커버
KR102092052B1 (ko) 2019-01-09 2020-03-23 주식회사 우성 전선 방호용 절연커버
KR102335551B1 (ko) * 2019-08-12 2021-12-07 주식회사 광운기술 시공성이 우수한 케이블용 차화 구조체 및 이를 포함하는 케이블용 차화 시스템
KR102076797B1 (ko) 2019-08-27 2020-02-12 (주)웅진엔지니어링 나전선용 방호관 연결구
KR102266549B1 (ko) * 2020-06-11 2021-06-18 한국전력공사 배전선용 애자 절연커버
KR102295513B1 (ko) * 2020-11-02 2021-08-31 주식회사 태우라바텍 전선 보호 커버
KR102630787B1 (ko) * 2021-03-04 2024-01-29 한기학 전선방호관
KR20220127534A (ko) 2021-03-11 2022-09-20 금오공과대학교 산학협력단 반려동물 기피제를 포함하는 전선 피복 조성물

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000188816A (ja) * 1998-12-22 2000-07-04 Yotsugi Kk 電線防護管
KR200341989Y1 (ko) * 2003-11-10 2004-02-14 (주)실사구시 전선보호관
KR100766576B1 (ko) * 2007-03-14 2007-10-12 (주)한신콘설탄트 전력 케이블의 보호커버 설치구조
KR101322706B1 (ko) * 2012-05-24 2013-10-29 한국전력공사 전선 보호 커버
KR101421942B1 (ko) * 2013-07-22 2014-08-01 주식회사 나래테크 광케이블용 인입선 행거

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000188816A (ja) * 1998-12-22 2000-07-04 Yotsugi Kk 電線防護管
KR200341989Y1 (ko) * 2003-11-10 2004-02-14 (주)실사구시 전선보호관
KR100766576B1 (ko) * 2007-03-14 2007-10-12 (주)한신콘설탄트 전력 케이블의 보호커버 설치구조
KR101322706B1 (ko) * 2012-05-24 2013-10-29 한국전력공사 전선 보호 커버
KR101421942B1 (ko) * 2013-07-22 2014-08-01 주식회사 나래테크 광케이블용 인입선 행거

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