KR101266832B1 - Power distribution cable tray grounding apparatus - Google Patents

Power distribution cable tray grounding apparatus Download PDF

Info

Publication number
KR101266832B1
KR101266832B1 KR1020130040978A KR20130040978A KR101266832B1 KR 101266832 B1 KR101266832 B1 KR 101266832B1 KR 1020130040978 A KR1020130040978 A KR 1020130040978A KR 20130040978 A KR20130040978 A KR 20130040978A KR 101266832 B1 KR101266832 B1 KR 101266832B1
Authority
KR
South Korea
Prior art keywords
tray
connecting plate
cable
cable tray
ground wire
Prior art date
Application number
KR1020130040978A
Other languages
Korean (ko)
Inventor
김복남
Original Assignee
주식회사 엠피코씨엠
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 엠피코씨엠 filed Critical 주식회사 엠피코씨엠
Priority to KR1020130040978A priority Critical patent/KR101266832B1/en
Application granted granted Critical
Publication of KR101266832B1 publication Critical patent/KR101266832B1/en

Links

Images

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
    • H02G3/0456—Ladders or other supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/26—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting the pipes all along their length, e.g. pipe channels or ducts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/16—Earthing arrangements
    • 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
    • H02G3/30—Installations of cables or lines on walls, floors or ceilings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Power Engineering (AREA)
  • Details Of Indoor Wiring (AREA)

Abstract

PURPOSE: A power distribution cable tray grounding apparatus is provided to prevent current leakage by using an insulating film and an insulating cover which are made of electric insulators. CONSTITUTION: A channel groove is formed in the outer surface of a cable tray. A trapezoid bending part is formed in a tray connection plate(40). An insulating film(60) is positioned between the tray connection plate and a ground line(50). A screw flange(46) is formed in the tray connection plate. A check hole is formed in both sides of an insulating cover.

Description

배전용 케이블트레이 접지장치{Power distribution cable tray grounding apparatus}Power distribution cable tray grounding apparatus

본 발명은 배전용 케이블트레이의 연결부위에 설치되는 접지장치에 관한 것으로, 더욱 상세하게는 케이블트레이의 연결부위에 설치되는 접지선 교체시 케이블트레이의 연결을 유지한 상태에서 가능하고 접지선의 단선유무를 편리하게 측정할 수 있도록 한 배전용 케이블트레이 접지장치에 관한 것이다.The present invention relates to a grounding device is installed on the connection portion of the cable tray for power distribution, and more particularly, it is possible in the state of maintaining the connection of the cable tray when replacing the ground wire is installed on the connection portion of the cable tray and the presence or absence of disconnection of the ground wire The present invention relates to a cable tray grounding device for a distribution system for convenient measurement.

일반적으로 전력케이블을 안내하기 위해 사용하는 케이블트레이는 볼트에 의해 길이방향으로 연결되기 때문에 케이블트레이에 포설된 전력케이블의 절연피복이 파괴되어 누전된 경우 볼트결합 된 케이블트레이의 연결부위에서 접촉저항에 의해 누설전류를 효과적으로 전달하지 못하고 발열하여 화재의 위험이 있거나 감전시 매우 큰 충격을 주게 된다.In general, the cable tray used to guide the power cable is connected in the longitudinal direction by bolts, so when the insulation coating of the power cable installed in the cable tray is broken and short-circuited, it is caused by contact resistance at the connection part of the bolted cable tray. It does not transmit leakage current effectively and generates heat, which may cause a fire or give a big shock in case of electric shock.

이러한 케이블트레이의 볼트결합면에서의 접촉저항은 밀착면이 미세한 요철에 의해 들떠 있기 때문에 발생되는 것으로 알려져 있다.The contact resistance at the bolted surface of the cable tray is known to occur because the contact surface is excited by minute irregularities.

따라서 케이블트레이의 연결부위를 건너서 동편조선과 같은 별도의 접지선을 양측 케이블트레이에 접속하여 누설전류가 접지선을 타고 넘어가도록 함으로써 누설전류를 대지에 효과적으로 흘려보낼 수 있도록 되어 있다.Therefore, a separate ground wire such as a copper braided wire is connected to both cable trays across the cable tray connection portion so that the leakage current flows over the ground wire so that the leakage current can be effectively flowed to the ground.

이러한 케이블트레이의 접지기술로는 국내특허출원번호 제 10-2009-0020989호(명칭, "케이블 트레이의 신축식 연결구조", 이하 "종래기술 1" 이라 함)가 제안된 바 있으며, 이와 같은 종래기술 1은 이송가이드부재와 가동연결부재에 의해 케이블트레이의 연결부위를 온도변화에 따라 신축가능하게 연결한 특징을 갖고 있다.As a grounding technology of such a cable tray, Korean Patent Application No. 10-2009-0020989 (name, "stretchable connection structure of a cable tray", hereinafter referred to as "prior art 1") has been proposed. The technique 1 is characterized in that the connection portion of the cable tray is flexibly connected to the temperature change by the transfer guide member and the movable connecting member.

그러나, 종래기술 1은 접지점퍼가 외부에 노출되어 있기 때문에 외력에 의해 접지점퍼가 단선되거나 손상되는 등의 문제를 일으킬 우려가 매우 높았다.However, in the related art 1, since the ground jumper is exposed to the outside, there is a high possibility of causing a problem such as disconnection or damage of the ground jumper by external force.

또 다른 케이블트레이의 접지기술로는 국내특허출원번호 제 10-2009-0098327호(명칭, "다방향 접지가 가능한 케이블트레이 시스템", 이하 "종래기술 2" 라 함)가 제안된 바 있으며, 이와 같은 종래기술 2는 케이블트레이를 지지하기 위한 렁에 접지홈을 형성하여 접지부재에 의해 렁을 접속함으로써 케이블트레이의 연결부위를 전기적으로 접속하도록 되어 있었다. As another cable tray grounding technology, Korean Patent Application No. 10-2009-0098327 (named, "Cable tray system capable of multi-directional grounding", hereinafter referred to as "prior art 2") has been proposed. In the related art 2, a ground groove is formed in the rung for supporting the cable tray, and the connection portion of the cable tray is electrically connected by connecting the rung by the ground member.

그러나, 종래기술 2도 접지부재를 보호하기 위한 구성이 없기 때문에 종래기술 1과 같이 접지부재가 외력에 의해 단선되거나 손상되는 문제를 그대로 갖고 있었다.However, since the prior art 2 does not have a configuration for protecting the ground member, as in the prior art 1, the ground member is disconnected or damaged by an external force.

이와 같은 종래기술 1 및 종래기술 2의 문제를 해결하고 있는 케이블트레이의 접지기술로는 국내특허출원번호 제 10-2009-0007085호(명칭, "케이블트레이 또는 레이스웨이의 코인접지구조", 이하 "종래기술 3" 이라 함)가 제안된 바 있으며, 이와 같은 종래기술 3은 케이블트레이의 연결부위 사이에 무른 금속으로 된 접지부재를 삽입하고 볼트에 의해 압착함으로써 접지가 가능하게 하고 동시에 접지부재를 은폐시키도록 되어 있었다.As a grounding technique of a cable tray which solves the problems of the prior art 1 and the prior art 2, Korean Patent Application No. 10-2009-0007085 (name, "coin ground structure of a cable tray or a raceway", hereinafter " Prior art 3 "has been proposed, and this prior art 3 allows a grounding by inserting a soft metal grounding member between the connection portions of the cable tray and crimping it with bolts, and simultaneously concealing the grounding member. It was supposed to have.

그러나, 종래기술 3은 케이블트레이 연결에 사용하는 볼트에 의해 접지부재를 압착하도록 되어 있기 때문에 설치 후 온도변화에 따른 케이블트레이의 신축과 하중에 의해 처음의 압착력에 변화를 일으키면서 접촉저항이 증가되어 접지에 문제를 일으키는 단점이 있었으며, 압착시 내부가 보이지 않기 때문에 어느 정도 압착되었는가를 알 수 없어 접지시공의 신뢰성이 떨어지고, 접지홈에 접지부재를 끼우고 케이블트레이를 결합하여야 하기 때문에 작업 도중 접지부재가 접지홈으로 떨어질 우려가 매우 커 작업성이 불량하게 되는 많은 문제점을 갖고 있었으며, 접지부재를 교체하는 경우 볼트를 풀어서 케이블트레이를 해체하여야 되는 문제점이 있었다.However, in the conventional technique 3, since the ground member is pressed by bolts used to connect the cable tray, the contact resistance is increased while the initial compressive force is changed by the expansion and load of the cable tray according to the temperature change after installation. There was a drawback that caused a problem in the grounding, and because the inside was not visible during the crimping, it was impossible to know how much it was squeezed, so the reliability of the grounding was inferior. Has a lot of problems that the workability is very large to fall into the ground groove, there was a problem that, when replacing the ground member had to dismantle the cable tray by loosening the bolts.

또 종래기술 1 및 종래기술 2의 문제를 해결하고 있는 또 다른 케이블트레이의 접지기술로는 국내특허출원번호 제 10-2011-0140268호(명칭, "케이블 트레이 연결구조 및 장치", 이하 "종래기술 4" 라 함)가 제안된 바 있으며, 이와 같은 종래기술 4는 고정부재에 의해 접지점퍼를 덮는 구조로 되어 접지점퍼를 보호함으로써 종래기술 1과 종래기술 2의 문제를 해결하도록 되어 있었다.In addition, the grounding technology of another cable tray that solves the problems of the prior art 1 and the prior art 2 is a domestic patent application No. 10-2011-0140268 (name, "cable tray connection structure and device", hereinafter "prior art" 4 ") has been proposed, and the prior art 4 has a structure in which the ground jumper is covered by the fixing member to protect the ground jumper, thereby solving the problems of the prior art 1 and the prior art 2.

그러나, 종래기술 4는 접지점퍼를 덮기 위한 고정부재가 연결부재와 짝이 되어 케이블트레이를 연결하도록 되어 있기 때문에 접지점퍼를 교체하기 위해 고정부재를 분리하려면 연결부재도 함께 케이블트레이로부터 분리되어 케이블트레이의 연결이 해제되므로, 사전에 이에 대한 대책을 세우고 작업하여야 되는 매우 심각한 결함이 있었다.However, in the related art 4, since the fixing member for covering the ground jumper is paired with the connecting member to connect the cable tray, the connecting member is also separated from the cable tray to separate the fixing member to replace the ground jumper. Because of the disconnection of, there was a very serious flaw that must be taken in advance for countermeasures.

본 발명은 상기와 같은 문제점을 해결하기 위하여 이루어진 것으로, 그 목적은 케이블트레이의 연결부위에 설치되는 접지선 교체시 케이블트레이의 연결상태를 유지한 상태에서 교체가 가능하고, 접지선의 단선유무를 편리하게 측정할 수 있는 배전용 케이블트레이 접지장치를 제공함에 있다.The present invention has been made to solve the above problems, the object of which is to replace the ground wire is installed in the connection portion of the cable tray can be replaced while maintaining the connection state of the cable tray, it is convenient to disconnect the ground wire To provide a cable tray grounding device for measurement.

이러한 본 발명의 목적을 달성하기 위하여 케이블트레이의 외측면에 형성된 채널홈에 일치되는 사다리꼴절곡부를 트레이연결판에 형성하고, 트레이연결판과 접지선 사이에 위치되는 절연필름을 트레이연결판의 표면에 설치하며, 절연커버를 커버체결볼트에 의해 트레이연결판에 형성된 스크류플랜지에 체결하고, 트레이연결판 설치를 위한 연결볼트의 헤드부가 위치되는 볼트머리구멍을 절연커버에 형성하며, 접지선의 단선 유무를 점검하기 위한 체크홀을 절연커버의 좌우측에 천공하여 배전용 케이블트레이 접지장치가 제공된다.In order to achieve the object of the present invention, a trapezoidal bent portion corresponding to the channel groove formed on the outer surface of the cable tray is formed in the tray connecting plate, and an insulating film located between the tray connecting plate and the ground line is installed on the surface of the tray connecting plate. The insulation cover is fastened to the screw flange formed on the tray connecting plate by the cover fastening bolt, and the bolt head hole in which the head of the connecting bolt for installing the tray connecting plate is located is formed in the insulating cover, and the ground wire is disconnected. A cable tray grounding device for power distribution is provided by drilling a check hole to the left and right sides of the insulating cover.

이상에서 설명한 바와 같은 본 발명은 접지선 교체를 위해 절연커버를 트레이연결판으로부터 분리하는 경우 트레이연결판은 케이블트레이에 연결된 상태로 있기 때문에 종래와 같이 케이블트레이의 연결이 해제되는 문제를 일으키지 않게 되는 효과가 있다.According to the present invention as described above, when the insulating cover is removed from the tray connecting plate for replacing the ground wire, since the tray connecting plate is connected to the cable tray, the effect that the connection of the cable tray is not caused as in the prior art is not caused. There is.

또한, 절연커버를 트레이연결판에 결합할 때 연결볼트의 헤드부가 절연커버에 형성된 볼트머리구멍에 삽입되도록 되어 있기 때문에 헤드부와 절연커버의 간섭을 회피할 수 있어 조립을 편리하게 할 수 있는 효과가 있다.In addition, since the head part of the connecting bolt is inserted into the bolt head hole formed in the insulating cover when the insulating cover is coupled to the tray connecting plate, the interference between the head part and the insulating cover can be avoided, so as to facilitate the assembly. There is.

또한, 절연커버에 형성되어 있는 체크홀을 통해 절연커버 안쪽에 위치되어 있는 접지선의 단선유무를 편리하게 점검할 수 있기 때문에 점검작업을 매우 편리하게 할 수 있는 효과가 있다.In addition, since the check hole formed in the insulating cover can easily check the presence or absence of the disconnection of the ground wire located inside the insulating cover has an effect that can be very convenient to check.

또한, 트레이연결판의 표면에 설치된 절연필름과 전기적 절연체로 구성된 절연커버에 의해 접지선의 단선유무 체크시 전류 누설에 따른 에러를 방지할 수 있는 효과가 있다. In addition, an insulation cover composed of an insulating film and an electrical insulator installed on the surface of the tray connecting plate has an effect of preventing an error due to leakage of current when checking whether a ground wire is disconnected.

더 나아가서 본 발명은 트레이연결판에 의해 케이블트레이를 연결할 때 트레이연결판에 형성된 사다리꼴절곡부를 케이블트레이에 형성된 채널홈에 밀착시킨 상태에서 트레이연결판을 좌우로 움직이게 되면, 트레이연결판에 형성된 체결공의 중심과 케이블트레이에 형성된 탭구멍의 중심을 일치시키는 작업을 매우 편리하게 할 수 있는 효과도 있다.Furthermore, when the tray connection plate is moved left and right in a state in which the trapezoidal bending portion formed in the tray connection plate is closely attached to the channel groove formed in the cable tray when the cable tray is connected by the tray connection plate, the fastening hole formed in the tray connection plate is provided. There is also an effect that can be very convenient to match the center of the tap hole formed in the cable tray with the center of the.

또한, 트레이연결판과 케이블트레이가 결합되었을 때 트레이연결판에 형성된 사다리꼴절곡부가 케이블트레이에 형성된 채널홈에 쐐기 형태로 밀착되어 견고한 결합이 가능하게 되는 효과도 기대할 수 있다.In addition, when the tray connecting plate and the cable tray is coupled, the trapezoidal bent portion formed in the tray connecting plate is in close contact with the channel groove formed in the cable tray in the form of a wedge can also be expected to be able to achieve a strong coupling.

도 1은 본 발명에 따른 배전용 케이블트레이 접지장치를 보인 사시도
도 2는 본 발명에 따른 배전용 케이블트레이 접지장치를 보인 정면도
도 3은 본 발명에 따른 배전용 케이블트레이 접지장치를 보인 분해사시도
도 4는 도3의 요부를 확대하여 보인 분해사시도
도 5는 도2의 A-A'선 부분 확대단면도
도 6은 도2의 B-B'선 부분 확대단면도1 is a perspective view showing a cable tray grounding apparatus for power distribution according to the present invention
Figure 2 is a front view showing a cable tray grounding apparatus for power distribution according to the present invention
Figure 3 is an exploded perspective view showing a cable tray grounding device for distribution according to the present invention
4 is an exploded perspective view showing the main part of FIG. 3 in an enlarged manner;
5 is an enlarged cross-sectional view along the line AA ′ of FIG. 2;
6 is an enlarged cross-sectional view taken along the line B-B 'of FIG.

이하 본 발명에 따른 실시예를 첨부도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

첨부도면 도 1 내지 도 6에 도시된 바와 같이 케이블트레이(20)(30)의 외측면에 형성된 채널홈(22)(32)에 일치되는 사다리꼴절곡부(42)를 트레이연결판(40)에 형성하고, 트레이연결판(40)과 접지선(50) 사이에 위치되는 절연필름(60)을 트레이연결판(40)의 표면에 설치한다.1 to 6, the trapezoidal bent portion 42 corresponding to the channel grooves 22 and 32 formed on the outer surface of the cable trays 20 and 30 is attached to the tray connecting plate 40 as shown in FIGS. And the insulating film 60 positioned between the tray connecting plate 40 and the ground line 50 on the surface of the tray connecting plate 40.

이와 같은 절연필름(60)은 얇은 필름을 트레이연결판(40)의 모양과 동일한 모양으로 따내어 만들며, 접착제에 의해 트레이연결판(40)의 표면에 접착하거나 양면테이프를 이용 트레이연결판(40)에 부착하면 트레이연결판(40)과 절연필름(60)이 분리되지 않기 때문에 사용이 더욱 편리하나 꼭 절연필름(60)을 접착하지 않고 절연커버(70)를 트레이연결판(40)에 조립할 때 사이에 끼워서 고정할 수도 있다.The insulating film 60 is made of a thin film in the same shape as the shape of the tray connecting plate 40, and adhered to the surface of the tray connecting plate 40 by an adhesive or using a double-sided tape tray connecting plate 40 ), It is more convenient to use because the tray connecting plate 40 and the insulating film 60 are not separated, but the insulating cover 70 can be assembled to the tray connecting plate 40 without necessarily attaching the insulating film 60. It can also be clamped in between.

상기 트레이연결판(40)은 케이블트레이(20)(30)에 형성된 탭구멍(24)(34)에 결합되는 연결볼트(48)에 의해 양측 케이블트레이(20)(30)의 연결부위에 설치하며, 상기 접지선(50)은 양측 케이블트레이(20)(30)에 형성된 접지구멍(26)(36)에 체결되는 단자볼트(52)(54)에 의해 양단을 접속한다.The tray connecting plate 40 is installed at the connecting portion of both cable trays 20 and 30 by connecting bolts 48 coupled to the tab holes 24 and 34 formed in the cable trays 20 and 30. The ground wire 50 is connected to both ends by terminal bolts 52 and 54 fastened to the ground holes 26 and 36 formed in both cable trays 20 and 30.

또, 트레이연결판(40)과 절연필름(60)에는 중심이 일치되는 체결공(41)과 관통구멍(62)을 각각 형성하여 트레이연결판(40)과 절연필름(60)을 겹친 상태에서 이들 체결공(41)과 관통구멍(62)을 통해 연결볼트(48)를 삽입하여 케이블트레이(20)(30)에 형성된 탭구멍(24)(34)에 결합한다.In addition, in the tray connecting plate 40 and the insulating film 60, the fastening holes 41 and the through-holes 62 having the same center are formed, respectively, so that the tray connecting plate 40 and the insulating film 60 overlap each other. The connecting bolts 48 are inserted through the fastening holes 41 and the through holes 62 to be coupled to the tab holes 24 and 34 formed in the cable trays 20 and 30.

또한, 절연커버(70)를 커버체결볼트(74)에 의해 트레이연결판(40)에 형성된 스크류플랜지(46)에 체결하고, 트레이연결판(40) 설치를 위한 연결볼트(48)의 헤드부(48h)가 위치되는 볼트머리구멍(76)을 절연커버(70)에 형성한다.In addition, the insulating cover 70 is fastened to the screw flange 46 formed on the tray connecting plate 40 by the cover fastening bolt 74, and the head portion of the connecting bolt 48 for installing the tray connecting plate 40 A bolt head hole 76 in which 48h is positioned is formed in the insulating cover 70.

그리고, 스크류플랜지(46)에는 커버체결볼트(74)가 결합되는 나사구멍(46a)을 형성하며, 절연필름(60)과 절연커버(70)에는 커버체결볼트(74)가 삽입되는 관통공(64)과 볼트삽입구멍(71)을 나사구멍(46a)의 중심과 일치되게 형성한다.In addition, the screw flange 46 forms a screw hole 46a to which the cover fastening bolt 74 is coupled, and the through hole through which the cover fastening bolt 74 is inserted into the insulating film 60 and the insulating cover 70. 64 and the bolt insertion hole 71 are formed to coincide with the center of the screw hole 46a.

또, 볼트머리구멍(76)은 연결볼트(48)의 헤드부(48h) 직경보다 큰 내경을 갖도록 천공된 것으로, 트레이연결판(40) 연결에 사용한 연결볼트(48)의 헤드부(48h)에 절연커버(70)가 걸리는 것을 방지하기 위한 것이며, 절연커버(70)를 트레이연결판(40)에 밀착시켰을 때 헤드부(48h)가 볼트머리구멍(76)으로 진입되면서 걸림이 방지된다.In addition, the bolt head hole 76 is drilled to have an inner diameter larger than the diameter of the head portion 48h of the coupling bolt 48, and the head portion 48h of the coupling bolt 48 used to connect the tray connecting plate 40 is used. In order to prevent the insulation cover 70 from being caught, the head portion 48h enters the bolt head hole 76 when the insulation cover 70 is brought into close contact with the tray connecting plate 40, thereby preventing the jam.

한편, 접지선(50)의 단선 유무를 점검하기 위한 체크홀(78)(79)을 절연커버(70)의 좌우측에 적어도 총 두 개 천공하여 접지선(50) 단선 측정시 접지선(50)의 양측 단자볼트(52)(54)를 풀어서 접지선(50)을 케이블트레이(20)(30)로부터 완전하게 분리한 다음 도통테스터와 같이 전기적인 통선상태를 점검하기 위한 테스터의 플러스리드봉(도시생략)과 마이너스리드봉(도시생략)을 체크홀(78)(79)로 통과시켜 안쪽에 위치된 접지선(50)에 접촉하여 봄으로써 절연커버(70)를 분리하지 않고 접지선(50)의 단선유무를 점검할 수 있도록 한다.Meanwhile, at least two check holes 78 and 79 for checking whether the ground wire 50 is disconnected are drilled in the left and right sides of the insulating cover 70, so that both terminals of the ground wire 50 are measured when the ground wire 50 is disconnected. Loosen the bolts 52 and 54 to completely separate the ground wire 50 from the cable trays 20 and 30, and then the plus lead rod (not shown) of the tester for checking the electrical A negative lead rod (not shown) is passed through the check holes 78 and 79 so as to contact the ground wire 50 located therein, thereby checking the disconnection of the ground wire 50 without removing the insulation cover 70. Do it.

즉, 절연필름(60)과 절연커버(70)가 절연체로 구성되어 있기 때문에 도통테스터의 리드봉이 절연커버(70)에 접촉하여도 측정정밀도에 큰 영향을 미치지 않게 되며, 점검전 접지선(50)의 양단을 케이블트레이(20)(30)로부터 분리하여 떨어뜨리게 되면 케이블트레이(20)(30)를 통한 통전을 방지할 수 있게 된다.That is, since the insulating film 60 and the insulating cover 70 are made of an insulator, even if the lead rod of the conductive tester is in contact with the insulating cover 70, the measurement accuracy is not significantly influenced, and the ground wire 50 before inspection is checked. If both ends of the cable tray (20, 30) to separate and drop to be able to prevent the electricity through the cable tray (20, 30).

그리고, 트레이연결판(40)에는 공지된 바와 같이 접지선(50)이 위치되는 접지선수용홈(44)을 형성하며, 접지선(50)을 덮기 위한 절연커버(70)의 내측면에는 절연커버홈(72)을 형성한다.In addition, the tray connecting plate 40 forms a ground bow groove 44 in which the ground wire 50 is located, as is known, and an insulation cover groove (inside) of the insulation cover 70 for covering the ground wire 50. 72).

도면 중 미설명 부호 10은 케이블트레이(20)(30)를 지지하는 렁을 나타낸 것이며, 12는 렁(10)을 매달기 위한 행거볼트를 나타낸 것이다.In the figure, reference numeral 10 denotes a rung for supporting the cable trays 20 and 30, and 12 denotes a hanger bolt for hanging the rung 10.

이하 본 발명에 따른 작용을 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, the operation according to the present invention will be described in detail with reference to the accompanying drawings.

첨부도면 도 1 내지 도 6에 도시된 바와 같이 양측 케이블트레이(20)(30)가 연결볼트(48)와 트레이연결판(40)에 의해 결합된 상태에서 접지선(50)으로 양쪽 케이블트레이(20)(30)를 전기적으로 접속하는 경우에는 우선 트레이연결판(40)의 표면에 절연필름(60)을 밀착시킨 상태에서 접지선(50)의 양단을 단자볼트(52)(54)에 의해 케이블트레이(20)(30)에 형성된 접지구멍(26)(36)에 체결하게 되면, 양측의 케이블트레이(20)(30)가 접지선(50)에 의해 통전 가능한 상태로 된다.As shown in FIGS. 1 to 6, both cable trays 20 are connected to the ground wire 50 in a state in which both side cable trays 20 and 30 are coupled by the connecting bolts 48 and the tray connecting plate 40. (30) electrically connect both ends of the ground wire (50) by means of terminal bolts (52) (54) while the insulating film (60) is in close contact with the surface of the tray connecting plate (40). When it is fastened to the ground holes 26 and 36 formed in the (20) and (30), the cable trays 20 and 30 of both sides become the state which can be supplied with electricity by the ground wire 50. As shown in FIG.

이후 절연커버(70)에 형성된 볼트삽입구멍(71)의 중심을 절연필름(60)에 형성된 관통공(64)의 중심과 일치시킨 상태에서 볼트삽입구멍(71)과 관통공(64)으로 커버체결볼트(74)를 삽입하여 트레이연결판(40)에 형성된 나사구멍(46a)에 결합하게 되면, 절연커버(70)가 트레이연결판(40)에 부착된다.Subsequently, the cover of the bolt insertion hole 71 formed in the insulating cover 70 is covered with the bolt insertion hole 71 and the through hole 64 while the center of the bolt insertion hole 71 coincides with the center of the through hole 64 formed in the insulating film 60. When the fastening bolt 74 is inserted into the screw hole 46a formed in the tray connecting plate 40, the insulating cover 70 is attached to the tray connecting plate 40.

이때 접지선(50)은 통상의 경우에서와 같이 트레이연결판(40)과 절연커버(70)에 형성된 접지선수용홈(44)과 절연커버홈(72)에 위치되어 은폐되어 보호되며, 다만 접지선(50)의 양단부는 노출된 상태로 된다. At this time, the ground wire 50 is located in the ground bow groove 44 and the insulation cover groove 72 formed in the tray connecting plate 40 and the insulating cover 70 as in the usual case is concealed and protected, but the ground wire ( Both ends of 50) are exposed.

또, 절연커버(70)를 트레이연결판(40)에 결합할 때 절연커버(70)에 형성된 볼트머리구멍(76)은 트레이연결판(40) 고정을 위한 연결볼트(48)의 헤드부(48h)를 수용하여 절연커버(70)를 조립할 때 헤드부(48h)에 의한 간섭을 방지하는 작용을 하게 된다.In addition, when the insulating cover 70 is coupled to the tray connecting plate 40, the bolt head hole 76 formed in the insulating cover 70 may have a head portion of the connecting bolt 48 for fixing the tray connecting plate 40. 48h) serves to prevent interference by the head portion 48h when assembling the insulating cover 70.

상기 트레이연결판(40)에 절연커버(70)를 조립할 때 사이에 절연필름(60)을 위치시키고 조립하여도 되지만 접착제 또는 양면테이프를 이용해서 트레이연결판(40)의 표면에 절연필름(60)을 미리 접착하거나 부착하여 두면, 현장에서 더욱 편리하게 작업할 수 있게 된다. When assembling the insulating cover 70 on the tray connecting plate 40, the insulating film 60 may be positioned and assembled between the insulating connecting films 40, but the insulating film 60 is formed on the surface of the tray connecting plate 40 by using an adhesive or double-sided tape. ) Can be more convenient to work on site.

한편, 절연커버(70)에 의해 보호되고 있는 접지선(50)의 단선유무를 체크하는 경우 먼저 접지선(50)의 양측 단자볼트(52)(54)를 풀어서 접지선(50)을 케이블트레이(20)(30)로부터 완전하게 분리한 다음 절연커버(70)의 좌우측에 형성되어 있는 체크홀(78)(79)로 도통테스터의 플러스리드봉과 마이너스리드봉을 각각 집어넣어서 안쪽의 접지선(50)에 접촉여 측정하게 되면, 접지선(50)이 단선되었는가의 여부를 절연커버(70)를 분리하지 않고 편리하게 점검할 수 있게 된다.On the other hand, in the case of checking the disconnection of the ground wire 50 which is protected by the insulating cover 70, first unscrew both terminal bolts 52, 54 of the ground wire 50 to the ground wire 50 to the cable tray 20 After completely separating from the (30), the positive lead rod and the negative lead rod of the conductive tester are respectively inserted into the check holes 78 and 79 formed on the left and right sides of the insulating cover 70 to contact the inner ground wire 50. When the measurement is performed, it is possible to conveniently check whether the ground wire 50 is disconnected without removing the insulation cover 70.

이때 트레이연결판(40)의 표면에 설치된 절연필름(60)은 트레이연결판(40)과 접지선(50) 사이를 전기적으로 절연하여 접지선(50)으로부터 트레이연결판(40)으로 이어지는 통전경로를 미리 차단하여 전류누설에 따른 단선체크 에러를 방지하는 작용을 하게 되며, 체크홀(78)(79)에 도통테스터의 플러스리드봉과 마이너스리드봉이 접촉하더라도 절연커버(70)가 전기적인 절연체로 구성되어 있기 때문에 점검에러를 방지할 수 있게 된다.At this time, the insulating film 60 installed on the surface of the tray connecting plate 40 electrically insulates the tray connecting plate 40 from the ground wire 50 to connect the conductive path leading from the ground wire 50 to the tray connecting plate 40. It blocks in advance to prevent disconnection check error due to current leakage, and the insulation cover 70 is composed of an electrical insulator even if the positive lead rod and the negative lead rod of the conductive tester contact the check holes 78 and 79. As a result, inspection errors can be prevented.

또, 접지선(50)이 단선으로 판정되어 교체하는 경우 커버체결볼트(74)를 풀게 되면, 절연커버(70)가 트레이연결판(40)으로부터 분리되어 접지선(50)이 노출되며, 이 상태에서 단자볼트(52)(54)를 풀고 접지선(50)을 정상적인 것으로 교체한 다음 커버체결볼트(74)를 이용 절연커버(70)를 트레이연결판(40)에 결합하게 되면, 편리하게 접지선(50)의 교체가 가능하게 된다.In addition, when the ground wire 50 is determined to be disconnected and replaced, when the cover fastening bolt 74 is released, the insulation cover 70 is separated from the tray connecting plate 40 to expose the ground wire 50. Loosen the terminal bolts 52 and 54, replace the ground wire 50 with a normal one, and then use the cover fastening bolt 74 to couple the insulating cover 70 to the tray connecting plate 40, thereby providing a convenient ground wire (50). ) Can be replaced.

이와 같이 절연커버(70)를 트레이연결판(40)으로부터 분리할 때 케이블트레이(20)(30)는 트레이연결판(40)에 의해 결합된 상태를 유지하기 때문에 종래와 같이 케이블트레이(20)(30)의 연결이 해제되는 구조적인 문제를 일으키지 않게 된다.As such, when the insulating cover 70 is separated from the tray connecting plate 40, the cable trays 20 and 30 maintain the state in which they are coupled by the tray connecting plate 40. The connection of 30 is not caused to cause structural problems.

그리고, 트레이연결판(40)에 의해 양쪽 케이블트레이(20)(30)를 연결할 때 트레이연결판(40)에 형성된 사다리꼴절곡부(42)를 케이블트레이(20)(30)에 형성된 채널홈(22)(32)에 밀착시키게 되면, 트레이연결판(40)에 형성된 체결공(41)의 중심과 케이블트레이(20)(30)에 형성된 탭구멍(24)(34)의 중심이 동일 수평선상에 놓이게 되며, 이 상태에서 트레이연결판(40)을 좌우로 움직여 체결공(41)의 중심과 탭구멍(24)(34)의 중심이 동일 수직선상에 일치되는 지점에서 멈추게 되면, 체결공(41)의 중심과 탭구멍(24)(34)의 중심을 편리하게 맞출 수 있게 된다.In addition, when connecting both cable trays 20 and 30 by the tray connecting plate 40, the channel grooves formed in the cable trays 20 and 30 have a trapezoidal bent portion 42 formed in the tray connecting plate 40. 22 and 32, the center of the fastening hole 41 formed in the tray connecting plate 40 and the center of the tab holes 24 and 34 formed in the cable trays 20 and 30 are on the same horizontal line. In this state, the tray connecting plate 40 is moved to the left and right to stop at the point where the center of the fastening hole 41 and the center of the tab hole 24 and 34 coincide on the same vertical line. The center of the tab 41 and the center of the tab holes 24 and 34 can be conveniently aligned.

또한, 트레이연결판(40)과 케이블트레이(20)(30)가 연결볼트(48)에 의해 결합되었을 때 트레이연결판(40)에 형성된 사다리꼴절곡부(42)가 케이블트레이(20)(30)에 형성된 채널홈(22)(32)에 쐐기 형태로 밀착되어 상호 견고한 결합이 이루어지게 된다.Further, when the tray connecting plate 40 and the cable trays 20 and 30 are coupled by the connecting bolts 48, the trapezoidal bent portion 42 formed in the tray connecting plate 40 is connected to the cable trays 20 and 30. In close contact with the channel grooves (22) and (32) formed in the wedge shape is made to be firmly coupled to each other.

10 : 크로스바 12 : 행거볼트
20,30 : 케이블트레이 22,32 : 채널홈
24,34 : 탭구멍 26,36 : 접지구멍
40 : 트레이연결판 41 : 체결공
42 : 사다리꼴절곡부 44 : 접지선수용홈
46 : 스크류플랜지 46a : 나사구멍
48 : 연결볼트 48h : 헤드부
50 : 접지선 52,54 : 단자볼트
60 : 절연필름 62 : 관통구멍
64 : 관통공 70 : 절연커버
71 : 볼트삽입구멍 72 : 절연커버홈
74 : 커버체결볼트 76 : 볼트머리구멍
78,79 : 체크홀10 cross bar 12 hanger bolt
20,30: Cable tray 22,32: Channel groove
24, 34: tap hole 26, 36: ground hole
40: tray connection plate 41: fastening hole
42: trapezoidal bent portion 44: the ground bow home
46: screw flange 46a: screw hole
48: Connecting bolt 48h: Head part
50: ground wire 52,54: terminal bolt
60: insulating film 62: through hole
64: through hole 70: insulation cover
71: Bolt insertion hole 72: Insulation cover groove
74: cover fastening bolt 76: bolt head hole
78,79: Check hole

Claims (1)

케이블트레이(20)(30)의 외측면에 형성된 채널홈(22)(32)에 일치되는 사다리꼴절곡부(42)를 트레이연결판(40)에 형성하고, 트레이연결판(40)과 접지선(50) 사이에 위치되는 절연필름(60)을 트레이연결판(40)의 표면에 설치하며, 절연커버(70)를 커버체결볼트(74)에 의해 트레이연결판(40)에 형성된 스크류플랜지(46)에 체결하고, 트레이연결판(40) 설치를 위한 연결볼트(48)의 헤드부(48h)가 위치되는 볼트머리구멍(76)을 절연커버(70)에 형성하며, 접지선(50)의 단선 유무를 점검하기 위한 체크홀(78)(79)을 절연커버(70)의 좌우측에 천공하여 구성한 것을 특징으로 하는 배전용 케이블트레이 접지장치.A trapezoidal bent portion 42 corresponding to the channel grooves 22 and 32 formed on the outer surface of the cable trays 20 and 30 is formed in the tray connecting plate 40, and the tray connecting plate 40 and the ground wire ( The insulating film 60 positioned between 50 is installed on the surface of the tray connecting plate 40, and the screw flange 46 formed on the tray connecting plate 40 by the cover fastening bolt 74 is installed on the insulating cover 70. ), A bolt head hole 76 in which the head portion 48h of the connecting bolt 48 for installing the tray connecting plate 40 is located is formed in the insulating cover 70, and the disconnection line of the ground wire 50 is formed. Cable tray grounding apparatus for power distribution, characterized in that the hole to check the presence of the check hole (78) (79) to check the presence and absence of the insulating cover (70).
KR1020130040978A 2013-04-15 2013-04-15 Power distribution cable tray grounding apparatus KR101266832B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130040978A KR101266832B1 (en) 2013-04-15 2013-04-15 Power distribution cable tray grounding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130040978A KR101266832B1 (en) 2013-04-15 2013-04-15 Power distribution cable tray grounding apparatus

Publications (1)

Publication Number Publication Date
KR101266832B1 true KR101266832B1 (en) 2013-05-24

Family

ID=48666722

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130040978A KR101266832B1 (en) 2013-04-15 2013-04-15 Power distribution cable tray grounding apparatus

Country Status (1)

Country Link
KR (1) KR101266832B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102475774B1 (en) * 2022-01-10 2022-12-08 안진섭 Grounding Device of Power Cable Tray

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200416740Y1 (en) 2006-01-27 2006-05-23 주식회사 단성 Variable type cable tray
KR200459803Y1 (en) 2011-01-27 2012-04-18 아인텍(주) Ground connection member for cable tray

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200416740Y1 (en) 2006-01-27 2006-05-23 주식회사 단성 Variable type cable tray
KR200459803Y1 (en) 2011-01-27 2012-04-18 아인텍(주) Ground connection member for cable tray

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102475774B1 (en) * 2022-01-10 2022-12-08 안진섭 Grounding Device of Power Cable Tray

Similar Documents

Publication Publication Date Title
US9066578B2 (en) Fixed tap low threshold current power supply
US20140290052A1 (en) Apparatus For Coupling Circuit Boards
WO2015162641A1 (en) Terminal head for sheathed temperature measurement sensor
MX2011000138A (en) Universal front/back post terminal block and test link.
KR20140102406A (en) diverging device for bus duct
KR102124659B1 (en) busduct joint
JPWO2016052314A1 (en) Insulation deterioration monitoring device
KR102238913B1 (en) recognizing method of temperature sensor for multi point temperature monitering system of busduct
KR101266832B1 (en) Power distribution cable tray grounding apparatus
CN107078417A (en) Terminal box
CN202772278U (en) Connector for connecting high-current cable
US9780508B2 (en) Test cable and socket adapter for a test cable
KR20210145185A (en) Circuit board for electric vehicle charging station
JP4401314B2 (en) Bypass connection device
CN103500888A (en) Wiring terminal for wire
CN209946289U (en) Low-voltage test box sealing lead hole wiring terminal
US9903902B2 (en) Electrical connector for detecting discontinuities in an electrical network
CN108539443B (en) Wall-penetrating type wiring terminal
KR200490136Y1 (en) Apparatus for connecting overhead line and underground line
CN208386109U (en) A kind of naked cable separation sleeve
CN106505338A (en) A kind of Fast Installation and the long private cable part of furniture of fastness can be strengthened
KR102191790B1 (en) Voltage indicator display module
CN221007767U (en) Detection device for rapidly detecting cable delivery partial discharge withstand voltage test
CN216450937U (en) Low-voltage switchgear grounding expansion board and low-voltage switchgear
CN214626279U (en) Power transmission line jumper wire clamp

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20160516

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20170516

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20180516

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20190516

Year of fee payment: 7