KR100269742B1 - Jig for measuring interficial pressure between cv cable and accessing - Google Patents

Jig for measuring interficial pressure between cv cable and accessing Download PDF

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Publication number
KR100269742B1
KR100269742B1 KR1019980002026A KR19980002026A KR100269742B1 KR 100269742 B1 KR100269742 B1 KR 100269742B1 KR 1019980002026 A KR1019980002026 A KR 1019980002026A KR 19980002026 A KR19980002026 A KR 19980002026A KR 100269742 B1 KR100269742 B1 KR 100269742B1
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South Korea
Prior art keywords
jig
cable
pressure
stress cone
outer diameter
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KR1019980002026A
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Korean (ko)
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KR19990066257A (en
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백주흠
전승익
정석윤
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권문구
엘지전선주식회사
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Priority to KR1019980002026A priority Critical patent/KR100269742B1/en
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Publication of KR100269742B1 publication Critical patent/KR100269742B1/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0028Force sensors associated with force applying means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/26Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE: A jig for measuring interface pressure of a superhigh pressure cable and a closure is provided to be utilized as a basic of designing closure interface by actually measuring interface pressure with directly adapting the jig to the closure product. CONSTITUTION: A jig for measuring interface pressure of a superhigh pressure cable and a closure includes a stress cone(13) formed between the outer diameter of a cable(11) and an external surface of an epoxy(12), a jig formed between the outer diameter of the cable and the inner diameter of the stress cone for measuring interface pressure of the cable, and a jig formed between an external surface of the stress cone and an inner surface of the epoxy for measuring the measuring interface pressure of the cable.

Description

초고압 Cable 및 접속함 계면압력 측정용 지그(JIG)Ultra High Voltage Cable and Junction Jig for Interfacial Pressure Measurement

본 발명은 초고압 Cable 및 접속함 계면 압력 측정에 관한 것으로, 케이블 및 에폭시유니트 계면에 지그를 포함한 하중센서를 부착하여 케이블의 외계면 즉 스트레스콘의 내 계면의 면압을 측정할 수 있도록 구성하고 에폭시 유니트 내 계면 즉 스트레스콘의 외계면에서 에폭시 유니트 외경으로 구멍을 내고 지그를 포함한 하중센서를 부착하여 직접 케이블과 접속함의 계면 압력을 측정할 수 있는 것에 관한 것이다.The present invention relates to the measurement of the ultra-high pressure cable and junction box interface pressure, it is configured to measure the surface pressure of the outer interface of the cable, that is, the inner surface of the stress cone by attaching a load sensor including a jig at the interface of the cable and epoxy unit The present invention relates to a method for measuring the interface pressure between a cable and a junction box by directly drilling a hole with an epoxy unit outer diameter at an inner interface, that is, an outer surface of a stress cone, and attaching a load sensor including a jig.

종래의 초고압 케이블 및 접속함 계면압 측정 장치의 구성은 케이블 대체용으로 나이론 파이프나 알루미늄 파이프에 스트레인 게이지를 측정부위에 부착하고 측정리드선을 뽑아 측정설비에 연결 이용하고, 에폭시 유니트 대용품으로 물리적인 힘에 변형이 잘 생기는 나이론을 에폭시 유니트 형상과 동일하게 가공하여 스트레인 게이지를 측정부위에 부착하고 측정리드선을 뽑아 측정설비에 연결 이용하여 왔으나, 실제로는 실제품에 모의 시험을 상기와 같은 방법을 이용하였다.Conventional ultra high voltage cable and junction box interface pressure measuring device is composed of nylon pipe or aluminum pipe by using strain gage on measuring part and connecting the measuring lead wire to measuring equipment. Nylon, which is easily deformed, was processed in the same shape as the epoxy unit, and a strain gauge was attached to the measurement site, and the measurement lead wire was pulled out and connected to the measurement facility.

상기와 같은 방법은 실측과 오차의 범위가 일정하지 않으므로 공정에 응용한다 해도 소기의 목적 달성을 기대하기에 어려움이 있으며, 시험대상에 따라 그 때 마다 시험을 해야하는 번거러움과 경비의 추가 부담이 있는 것이다.The method described above is difficult to expect to achieve the desired purpose even if applied to the process because the range of measurement and error is not constant, and there is an additional burden of burden and expense to test each time according to the test object. .

초고압 케이블 접속함의 스트레스콘 내계면과 접촉하는 케이블 외계면을 가공하여 지그를 설치하고 설치된 지그의 외경이 케이블 외경과 같도록 형성하여 스트레스콘의 내계면과 긴밀히 밀착되며, 스트레스 외계면과 접촉하는 에폭시 유니트 내계면을 가공하여 지그의 외경이 에폭시유니트 내계면과 같도록 형성하여 스트레스 외계면이 에폭시내계면과 긴밀히 밀착하도록 구성한다. 상기 각 지그에 하중센서를 형성하고 에폭시유니트 외계면으로 상기 지그 하중센서를 노출시켜 각 계면압을 측정할 수 있는 구성을 제공하는데 그 목적이 있다.Jig is installed by processing the outer surface of the cable in contact with the inner surface of the stress cone of the ultra-high voltage cable junction box, and the outer diameter of the installed jig is formed to be the same as the outer diameter of the cable. The inner diameter of the jig is processed so that the outer diameter of the jig is the same as the inner surface of the epoxy unit so that the stress outer surface is in close contact with the inner surface of the epoxy. It is an object of the present invention to provide a configuration in which load sensors are formed on each jig, and each interface pressure can be measured by exposing the jig load sensors to an epoxy unit outer surface.

상기와 같은 목적을 달성하기 위하여, 케이블의 절연체인 피복을 가공하여 지그가 연계된 하중센서를 부착하며 하중센서에 연계된 지그의 외경을 케이블의 외경과 동일하게 구성한다. 지그가 부착되는 케이블의 외경 부분을 가공하고 가공된 부분에 부착된 지그의 외경이 본래의 케이블 외경과 동일하도록 구성하며, 지그가 부착되는 에폭시유니트 내계면을 가공하여 지그가 설치된 후 지그의 외경이 본래의 에폭시유니트 내경과 동일하도록 구성한다.In order to achieve the above object, by processing the sheath which is the insulator of the cable to attach a load sensor associated with the jig and configure the outer diameter of the jig associated with the load sensor to the same as the outer diameter of the cable. The outer diameter of the jig is processed and the outer diameter of the jig attached to the processed part is the same as the original cable outer diameter.The outer diameter of the jig after the jig is installed by processing the inner surface of the epoxy unit to which the jig is attached is processed. It is configured to be identical to the inner diameter of the original epoxy unit.

에폭시유니트측정 지점에 지그가 연계된 하중센서를 부착하고 그 센서가 작동하여 면압이 표시되면 그 지점을 기점으로 하고 스프링 유니트의 스프링길이를 조절하여 일정한 하중이 유지되도록 한다.Attach a load sensor with a jig attached to the epoxy unit measurement point, and when the sensor operates to display the surface pressure, use the point as the starting point and adjust the spring length of the spring unit to maintain a constant load.

하중의 집중화를 위해 센서의 버튼의 길이를 3∼4㎜로 형성하는 것이 바람직하며, 케이블 계면의 로드버튼 상부를 황동재질로 형성하고 황동재질의 상부는 케이블의 외경 계면을 스트레스 콘 내면과 동일한 곡율로 가공한다. 에폭시 계면에 지그가 포함된 하중센서를 부착하기 위해 스트레스 콘 선단으로부터 하중센서 부착지점의 두께를 고려한 길이의 활동볼트 내에 도 3의 상부에 도시된 것과 같은 모양으로 홀을 형성하여 지그가 부착된 하중센서를 장착할 수 있는 구조로 형성하고 측정 리드선을 하중센서에 연계하여 가시적으로 각 계면압을 식별하도록 한다.In order to concentrate the load, it is preferable to form the length of the button of the sensor to 3 to 4 mm, and the upper part of the rod button of the cable interface is made of brass material, and the upper part of the brass material has the same radius of curvature as the inner surface of the stress cone. Process with In order to attach the load sensor with jig to the epoxy interface, the jig is attached by forming a hole in the action bolt of the length considering the thickness of the load sensor attachment point from the stress cone tip as shown in the upper part of FIG. It is designed to be equipped with the sensor and the measurement lead wire is linked to the load sensor to visually identify each interface pressure.

도 1은 Cable 계면에 부착되는 하중센서와 지그(JIG)1 is a load sensor and a jig attached to a cable interface

도 2는 Stress Cone의 외면과 내면에 하중센서와 지그(JIG)의 부착상태도2 is a state of attachment of the load sensor and the jig (JIG) on the outer and inner surfaces of the stress cone

도 3은 Epoxy 계면에 부착되는 하중센서와 지그(JIG)Figure 3 is a load sensor and jig (JIG) attached to the epoxy interface

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

11 : 케이블 12 : 에폭시 유니트11 cable 12 epoxy unit

13 : 스트레스 콘 14 : 케이블 계면13: stress cone 14: cable interface

15 : 에폭시 계면 16 : 하중센서15 epoxy interface 16 load sensor

17 : 리드선 18 : 볼트17: lead wire 18: bolt

19 : 지그(a,b) 20 : 로드버튼19: jig (a, b) 20: load button

21 : 유니트스프링 22 : 홀21: unit spring 22: hole

23 : 조절부 24 : 나사23: adjuster 24: screw

첨부된 도면과 실시 예를 참고하여 본 발명에 대해서 상세히 설명하고자 한다.With reference to the accompanying drawings and embodiments will be described in detail with respect to the present invention.

본 발명은 케이블(11)의 접속함 내의 지그(19a)가 안착할 수 있도록 가공된 케이블 계면(14)과 지그(19b)가 안착할 수 있도록 가공된 에폭시 계면(15)과 스트레스 콘(13) 내경(케이블외경과동일)과 외경(에폭시내경과동일)에 부착형성되는 지그(19a,19b)와 상기 지그(19a,19b)에 연계하여 형성되는 하중센서(16)로 구성되는 특징이 있다.According to the present invention, the epoxy interface 15 and the stress cone 13 processed to allow the cable interface 14 and the jig 19b to be seated can be seated by the jig 19a in the junction box of the cable 11. Jig (19a, 19b) attached to the inner diameter (same as the outer diameter of the cable) and the outer diameter (same as the epoxy inner diameter) and the load sensor 16 is formed in connection with the jig (19a, 19b).

볼트(18)는 지그(19a,19b)와 하중센서(16)의 거리를 조절할 수 있게 형성되고 리드선(17)은 하중센서(16)에 연계되며, 볼트(18)에 결합된 로드버튼(20)의 상부에 도 1에 도시된 것과 같은 모양의 지그(19a)가 형성되며, 상기 지그(19a)의 계면은 스트레스 콘(13)의 내경과 합착되고 상기 케이블(14)은 합착된 지그(19a)의 계면이 케이블(11)의 외경과 같도록 케이블 계면(14)이 가공된다.The bolt 18 is formed to adjust the distance between the jig 19a, 19b and the load sensor 16, the lead wire 17 is connected to the load sensor 16, the load button 20 is coupled to the bolt 18 A jig 19a having a shape as shown in FIG. 1 is formed on the upper part of the jig, and the interface of the jig 19a is bonded to the inner diameter of the stress cone 13 and the cable 14 is joined to the jig 19a. The cable interface 14 is processed so that the interface of) is the same as the outer diameter of the cable 11.

도 3에 도시된 것과 같은 모양의 지그(19b)에서 하중센서(16)가 황동나사(24)의 홀(22) 내부에 안착할 수 있도록 형성되며, 상기 지그(19b)는 에폭시 유니트 계면(15)과 스트레스 콘(13)의 외경 사이에 형성되고 상기 지그(19b)의 계면이 스트레스콘(13)의 외경과 용이하게 결합할 수 있도록 지그(19b)의 계면이 가공되고, 지그(19b)의 계면이 에폭시의 계면(15)과 동일하게 유지되도록 에폭시 계면(15)이 가공된다. 상기 도 1과 도 3에 도시된 것과 같은 모양의 지그(19a)는 각기 케이블(11)의 외경과 스트레스 콘(13)의 내경 사이에 고정되고, 지그(19b)는 에폭시유니트계면(15)과 스트레스 콘(13)의 외경 사이에 결합된다.In the jig 19b having a shape as shown in FIG. 3, the load sensor 16 is formed to be seated inside the hole 22 of the brass screw 24, and the jig 19b is formed of an epoxy unit interface 15. ) Is formed between the outer diameter of the stress cone 13 and the interface of the jig 19b is processed so that the interface of the jig 19b can easily be combined with the outer diameter of the stress cone 13, The epoxy interface 15 is processed so that the interface remains the same as the interface 15 of the epoxy. The jig 19a of the shape as shown in FIGS. 1 and 3 is fixed between the outer diameter of the cable 11 and the inner diameter of the stress cone 13, respectively, and the jig 19b is formed of an epoxy unit interface 15. It is coupled between the outer diameter of the stress cone 13.

케이블(11)과 에폭시유니트(12) 사이에 고정되는 스트레스 콘(13)의 접착압을 조정하기 위해 유니트 조절부(23)에 스프링(21)이 형성되며, 에폭시유니트(12)의 조절부(23)에 의하여 케이블(11)과 스트레스 콘(13) 사이와 에폭시유니트(12)와 스트레스 콘(13) 사이의 접착압이 원하는 압으로 조정되고 상기 조절부(23)의 작동에 의해 지그(19a)와 지그(19b)에서 작동하는 하중센서(16)가 원만한 기능을 수행할 수 있도록 형성된다.A spring 21 is formed in the unit adjusting unit 23 to adjust the adhesive pressure of the stress cone 13 fixed between the cable 11 and the epoxy unit 12, and the adjusting unit of the epoxy unit 12 ( 23, the adhesive pressure between the cable 11 and the stress cone 13 and between the epoxy unit 12 and the stress cone 13 is adjusted to the desired pressure and the jig 19a is operated by the operation of the adjusting section 23. ) And the load sensor 16 operating in the jig 19b are formed to perform a smooth function.

색인index

도면의 101은 케이블의 내경 102는 스트레스콘의 외경101 is the inner diameter of the cable 102 is the outer diameter of the stress cone

접속함 제품에 지그를 직접 적용하여 계면압 측정을 실측 가능하게 됨으로서 접속함 계면 설계의 기초로 활용할 수 있고, 케이블의 포설후 장기간 통전에 모의한 히트사이클 시험이 가능하게 되었으며 포설후 케이블 및 접속함 계면의 거동조사와 계면 안정화 연구를 할 수 있게 되었다.By applying the jig directly to the junction box product, it is possible to measure the interfacial pressure, which can be used as the basis of the junction box interface design, enabling the heat cycle test to simulate long-term electricity supply after the installation of the cable. Investigation of interfacial behavior and interfacial stabilization is now possible.

Claims (5)

케이블(11) 외경과 에폭시(12) 외부면 사이에 스트레스 콘(13)이 형성되고 케이블(11)외경과 스트레스 콘(13) 내경 사이에 케이블(11)의 계면압을 측정할 수 있는 지그(19a)가 형성되며 스트레스 콘(13) 외면과 에폭시(12) 내면 사이에 케이블(11)의 계면압을 측정할 수 있는 지그(19b)로 이루어짐을 특징으로 하는 초고압 Cable 및 접속함 계면압력 측정용 지그.A stress cone 13 is formed between the outer diameter of the cable 11 and the outer surface of the epoxy 12 and a jig capable of measuring the interfacial pressure of the cable 11 between the outer diameter of the cable 11 and the inner diameter of the stress cone 13. 19a) is formed between the outer surface of the stress cone 13 and the epoxy 12, jig (19b) for measuring the interfacial pressure of the cable 11, characterized in that for measuring the high pressure cable and junction box interface pressure Jig. 제1항에서 있어서, 지그(19a)는 하중센서(16)와의 거리를 조절하는 조절용나사(24)와 지그(19a)를 지지하며 조절용나사(24)의 작동으로 상,하 이동되는 로드버튼(20)으로 구성되는 것을 특징으로 하는 초고압 Cable 및 접속함 계면압력 측정용 지그.According to claim 1, the jig (19a) supports the adjustment screw 24 and the jig (19a) for adjusting the distance to the load sensor 16 and the load button (up and down moved by the operation of the adjustment screw 24 ( 20) Ultra-high voltage cable and junction box interfacial pressure measurement jig, characterized in that consisting of. 제1항에 있어서, 지그(19b)는 나사(24)의 상부에 홀(23)을 형성하여 그 홀(23)내부에 형성되며 지그(19b) 하부와 하중센서(16) 사이에 거리를 조절할 수 있는 볼트(18)와 로드버튼(20)으로 이루어지는 것을 특징으로 하는 초고압 Cable 및 접속함 계면압력 측정용 지그.The jig 19b is formed in the hole 23 by forming a hole 23 in the upper portion of the screw 24, and adjusts the distance between the lower jig 19b and the load sensor 16. Ultra high voltage cable and junction box interfacial pressure measurement jig, characterized in that consisting of a bolt 18 and the load button 20. 제1항에 있어서, 케이블(11) 외경에 접합되는 지그(19a)의 계면은 스트레스 콘(13)의 내면과 동일한 곡율로 가공하며, 에폭시 유니트(125)에 접합되는 지그(19b)의 계면은 스트레스콘(13)의 외경과 동일한 곡율을 가공되는 것을 특징으로 하는 초고압 Cable 및 접속함 계면압력 측정용 지그.The interface of the jig 19a bonded to the outer diameter of the cable 11 is processed with the same curvature as the inner surface of the stress cone 13, and the interface of the jig 19b bonded to the epoxy unit 125 is Ultra-high voltage cable and junction box interfacial pressure measurement jig, characterized in that the same curvature as the outer diameter of the stress cone (13). 제1항에 있어서, 지그(19b)는 스트레스콘(13)의 외경과 에폭시유니트(12) 내경에서 일정한 압력으로 유지되기 위하여 에폭시 유니트(12)의 조절부(24)에 압력조절용 스프링(21)이 형성되는 것을 특징으로 하는 초고압 Cable 및 접속함 계면압력 측정용지그According to claim 1, the jig (19b) is a pressure control spring 21 to the control unit 24 of the epoxy unit 12 to be maintained at a constant pressure in the outer diameter of the stress cone 13 and the inner diameter of the epoxy unit 12. Ultra-high voltage cable and junction box interfacial pressure measuring jig, characterized in that is formed
KR1019980002026A 1998-01-23 1998-01-23 Jig for measuring interficial pressure between cv cable and accessing KR100269742B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107505070A (en) * 2017-08-28 2017-12-22 广东电网有限责任公司电力科学研究院 A kind of interface pressure distribution testing method of cable accessory
WO2021225220A1 (en) * 2020-05-08 2021-11-11 일진전기 주식회사 Interfacial pressure measuring device

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KR102538687B1 (en) * 2016-02-05 2023-05-30 엘에스전선 주식회사 Dual turntable for submarine cable
CN108007622A (en) * 2017-12-18 2018-05-08 中国电力科学研究院有限公司 Cable connector interfacial pressure measuring method
KR102272086B1 (en) * 2020-01-02 2021-07-02 대한전선 주식회사 Apparatus of measuring pressure on heterogeneous interface and method thereof same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107505070A (en) * 2017-08-28 2017-12-22 广东电网有限责任公司电力科学研究院 A kind of interface pressure distribution testing method of cable accessory
CN107505070B (en) * 2017-08-28 2019-09-13 广东电网有限责任公司电力科学研究院 A kind of interface pressure distribution testing method of cable accessory
WO2021225220A1 (en) * 2020-05-08 2021-11-11 일진전기 주식회사 Interfacial pressure measuring device

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