EP1347534B1 - Connection terminal and grounding device - Google Patents

Connection terminal and grounding device Download PDF

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Publication number
EP1347534B1
EP1347534B1 EP03003914A EP03003914A EP1347534B1 EP 1347534 B1 EP1347534 B1 EP 1347534B1 EP 03003914 A EP03003914 A EP 03003914A EP 03003914 A EP03003914 A EP 03003914A EP 1347534 B1 EP1347534 B1 EP 1347534B1
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EP
European Patent Office
Prior art keywords
reinforcing steel
connecting lug
concrete
welded
earthing
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Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP03003914A
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German (de)
French (fr)
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EP1347534A3 (en
EP1347534A2 (en
Inventor
Josef Mühlberger
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Primetals Technologies Austria GmbH
Original Assignee
Siemens VAI Metals Technologies GmbH and Co
Siemens VAI Metals Technologies GmbH Austria
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Publication of EP1347534A2 publication Critical patent/EP1347534A2/en
Publication of EP1347534A3 publication Critical patent/EP1347534A3/en
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Publication of EP1347534B1 publication Critical patent/EP1347534B1/en
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    • 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
    • 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
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
    • H01R4/625—Soldered or welded connections

Definitions

  • the present invention relates to a terminal lug for the conductive connection of installations to reinforcing steel cast in concrete for the purpose of grounding, to a corresponding grounding system and to a method for producing a grounding system.
  • a Flexible terminal lugs which consist of a copper conductor, welded to a sleeve and this sleeve with a bar of the reinforcement.
  • the welding of the copper conductor with the sleeve is done using the complex CADWELD method, which can only be performed by specially trained personnel.
  • Terminals are used to connect ground wires and reinforcing bars together.
  • connecting copper grounding wires to the reinforcing bars can cause galvanic element formation and therefore corrosion.
  • the use of an insulated conductor can not cause corrosion at the transition between concrete and air.
  • connection lug can simply be welded to the reinforcing steel without special welding procedures, no specially trained personnel is required for this purpose.
  • the welding of the terminal lugs can be advantageously carried out by the construction company, which manufactures the reinforcement.
  • a particularly simple solution for producing the terminal lug is to connect the piece of reinforcing steel and the conductor by brazing or notches by means of a notched sleeve with each other.
  • Reinforcing steel used is bare, hot-rolled reinforcing steel. This reinforcing steel does not corrode in concrete and is therefore well suited for grounding purposes (as a grounding network). Due to the relatively good conductivity of concrete (about 250 ohm m), the - in foundations - very large concrete surfaces and embedded therein bars of reinforcing steel, the so-called "natural earth” in large quantity or length is required for grounding propagation resistance easy to reach and given the required potential control automatically. The sole use of steel in concrete eliminates any galvanic element formation from the outset.
  • the design of the basic earthing network is carried out with regard to the maximum thermal load in the event of a fault and to the permissible contact voltages at the earthing system.
  • the design of grounding systems is familiar to the person skilled in the art and will not be discussed further here.
  • the required propagation resistance is achieved by deliberate concreting in of additional reinforcing steel in the foundations. This can e.g. in areas where very high ground fault currents can occur (switchgear, outdoor switchgear, ...) are used.
  • the connecting lug according to FIG. 1 consists of a piece of bare reinforcing steel 1 with a diameter of at least 10 mm and a length of approx. 2 m as well as one piece of insulated copper rope 2 with a cross section of approx. 95 mm 2 and likewise a length of approx 2 m. Cross-section and lengths are to be adapted to the respective requirements.
  • the reinforcing steel and the copper rope are connected by means of a notched sleeve 3 made of copper: the reinforcing steel is connected to the notch sleeve by brazing (brazing 4), the copper rope is notched.
  • the notched sleeve is surrounded by a shrink tube 5 beyond its ends.
  • Fig. 2 shows how the reinforcing bars 6, which have a length of at least 5 m and a diameter of at least 10 mm, are connected to each other mainly by Rödelharmen 7.
  • Rödel2000 are approved as earth connections.
  • the Rödeltechen serve on the one hand to produce longitudinal reinforcements 8 with a greater length than that of a reinforcing bar 6, on the other hand thereby the mutually perpendicular longitudinal reinforcements are connected together.
  • the individual reinforcing rods are welded together for reasons of better conductivity (black mark in Fig. 2).
  • the individual welds have a length of about 5 cm.
  • one of the longitudinal reinforcements is to be welded continuously.
  • the reinforcing steel 1 of the connecting lug is welded to the continuously welded reinforcing bars at least three places 10 over a length of about 5 cm.
  • the terminal lug including the notched sleeve 3 is also poured into concrete.
  • the notch sleeve should then be at least about 10 cm below the concrete surface.
  • the terminal lugs are generally arranged so that the loose end of the copper rope as close to the plant to be grounded (hall support, equipotential bonding rail and the like) is led out with an excess length of about 1 m.
  • the copper cable 2 has at the end of a pressed-cable lug and is guided in Fig. 2 approximately to a building wall 12 and screwed to a potential equalization rail 13 arranged there made of copper.
  • a connecting lug for expansion joints which serves to connect two to be ground construction parts, that is about two separate by an expansion joint floor panels, conductively connected to each other.
  • a 2 m long piece of reinforcing steel 1 is attached to an approximately 1 m long copper cable 2 with 95 mm 2 cross-sectional area at both ends by means of notched sleeves 3 and brazing 4, as already described in Fig. 1.
  • the notched sleeves are in turn surrounded by a shrink tube 5.
  • Fig. 4 shows how the connecting lug 1, 2 on two reinforcing bars of each longitudinally welded longitudinal reinforcement 9 of e.g. two adjacent floor panels are welded to both sides of the expansion joint 14.
  • This connection lug is not only suitable for expansion joints, but generally for joining metal-reinforced components.
  • a hall support 15 is shown, the anchor bolts 17 are embedded in the pillar foundation 18, which has a metal reinforcement 6.
  • connecting lug is positioned to the bottom plate 19 so that the flexible copper rope 22 comes to lie in the region of the expansion joint and in the adjacent concrete bodies 18, 19 at least 10 cm is embedded in concrete.
  • the associated copper cable 22 leads to about the height of the foundation anchor 16 and then goes back to another piece of reinforcing steel 23 of the connection lug.
  • This piece of reinforcing steel 23 extends to the lower boundary of the support foundation 18 and is there welded to the metal reinforcement 6 (welds 10).
  • the piece of reinforcing steel 23 is also welded to the foundation anchor 16 (weld 20).
  • This terminal lug 21, 22, 23 thus serves the conductive connection of the bottom plate 19 with the metal reinforcement 6 of the support foundation 18th
  • the copper cable 32 is guided into the support foundation 18 and only there transitions into a piece of reinforcing steel 31, which is welded to the foundation anchor 16 (welding point 20) and to the metal reinforcement 6 (welds 10) of the support foundation 18.
  • the metal reinforcement of the parapet wall 24 is conductively connected to the metal reinforcement 6 of the support foundation 18 via a piece of reinforcing steel 25.
  • Fig. 6 the hall floor of a production plant with inventive grounding system is shown in plan view.
  • the peripheral Parapetwand 24 has a dash-dotted lines continuously welded metal reinforcement 6.
  • the hall floor consists of individual rectangular plates 34 which are interconnected by means of connecting lugs 41 for expansion joints (see FIG. 4).
  • In the hall floor are also shown dash-dotted continuously welded metal reinforcements arranged.
  • About falling or rising earth electrode 1 (represented by lines with cross) are connected to ground systems, such as the hall supports 15, with continuously welded metal reinforcements 6.
  • the spouts 2 (represented by grounding arrows) can be connected to equipotential busbars in the individual rooms of the hall (transformer room 38, electrical control room 39, hydraulic room 40).
  • a grounding mesh net smaller 20x20 m is provided in the indoor area 36, shown in dashed lines.
  • Two of the stage supports 35 of the stage 37 are also connected via earth electrode 1 with the continuously welded reinforcement.
  • the invention is applicable to all environmental conditions and soil conditions, easy to document and due to the standardized material and the consistent operations by the respective construction company without special monitoring feasible.
  • connection lugs are used as before, but with copper cables attached to both sides of the reinforcing steel. On This way, elaborate welding processes and any kind of corrosion can be avoided.

Landscapes

  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Waveguide Aerials (AREA)

Abstract

The device is made up of at least one piece of reinforcing steel (1) for welding to the reinforcing steel embedded in the concrete and of at least one flexible insulated conductor such as a copper cable (2) for connection to the system to be earthed. For bridging an expansion joint the conductor is connected to a piece reinforcing steel at both ends. AN Independent claim is also included for the following: an earthing system with steel reinforcement embedded in concrete to which at least one inventive device is welded and a method of manufacturing an earthing system.

Description

Die gegenständliche Erfindung betrifft eine Anschlussfahne zum leitenden Verbinden von Anlagen an in Beton eingegossenen Bewehrungsstahl zum Zweck der Erdung, eine entsprechende Erdungsanlage sowie ein Verfahren zur Herstellung einer Erdungsanlage.The present invention relates to a terminal lug for the conductive connection of installations to reinforcing steel cast in concrete for the purpose of grounding, to a corresponding grounding system and to a method for producing a grounding system.

Herkömmliche Methoden zur Herstellung von Erdungsanlagen, wie in der US 4 361 719 A oder der DE 37 38 376 A1 gezeigt, schlagen vor, die in Gebäudefundamenten vorhandenen Bewehrungen, also Eisen- bzw. Stahlstäbe, für Erdungszwecke zu nutzen. Die dabei verwendeten Materialien, Verarbeitungsmethoden und die dazu notwendige fachliche Kompetenz und Dokumentation sind aber sehr aufwendig.Conventional methods for the production of grounding systems, as in US 4,361,719 A or the DE 37 38 376 A1 show that they use the reinforcements found in building foundations, ie iron or steel bars, for earthing purposes. However, the materials, processing methods and the necessary technical competence and documentation are very expensive.

Gemäß der US 4 361 719 A werden biegsame Anschlussfahnen, die aus einem Kupferleiter bestehen, mit einer Hülse und diese Hülse mit einem Stab der Bewehrung verschweißt. Das Verschweißen des Kupferleiters mit der Hülse erfolgt mit dem aufwendigen CADWELD-Verfahren, das nur von eigens dafür geschultem Personal ausgeführt werden kann.According to the US 4,361,719 A Flexible terminal lugs, which consist of a copper conductor, welded to a sleeve and this sleeve with a bar of the reinforcement. The welding of the copper conductor with the sleeve is done using the complex CADWELD method, which can only be performed by specially trained personnel.

Im Verfahren nach der DE 37 38 376 A1 werden Klemmen verwendet, um Erdungskabel und Armierungseisen miteinander zu verbinden. Allerdings kann das Verbinden von Erdungskabel aus Kupfer mit den Armierungseisen zu galvanischer Elementbildung und daher zu Korrosion führen.In the method according to DE 37 38 376 A1 Terminals are used to connect ground wires and reinforcing bars together. However, connecting copper grounding wires to the reinforcing bars can cause galvanic element formation and therefore corrosion.

Es ist daher eine Aufgabe der vorliegenden Erfindung, eine Anschlussfahne zur Verfügung zu stellen, welche die genannten Nachteile, nämlich aufwendige Schweißverfahren, spezielle Hilfskonstruktionen, Korrosion, teures Personal und aufwendige Dokumentation, vermeidet.It is therefore an object of the present invention to provide a terminal lug, which avoids the disadvantages mentioned, namely complex welding methods, special auxiliary structures, corrosion, expensive personnel and complex documentation.

Gelöst wird diese Aufgabe durch eine Anschlussfahne gemäß Anspruch 1 und durch ein Verfahren gemäß Anspruch 8.This object is achieved by a terminal lug according to claim 1 and by a method according to claim 8.

Dadurch, dass jener Teil der Anschlussfahne, der mit dem später in Beton eingegossenen Bewehrungsstahl zu verbinden ist, aus dem gleichen oder ähnlichen Material gefertigt ist wie der in Beton eingegossene Bewehrungsstahl, kann es nicht zu galvanischer Elementbildung und damit nicht zur Korrosion kommen. Durch die Verwendung eines isolierten Leiters kann es zu keiner Korrosion am Übergang zwischen Beton und Luft kommen.The fact that the part of the connecting lug, which is to be connected to the reinforcing steel cast in concrete later, is made of the same or similar material as the reinforcing steel cast in concrete, can not lead to galvanic element formation and thus not to corrosion. The use of an insulated conductor can not cause corrosion at the transition between concrete and air.

Die Anschlussfahne kann einfach mit dem Bewehrungsstahl ohne spezielle Schweißverfahren verschweißt werden, es wird hierfür kein speziell ausgebildetes Personal benötigt. Das Anschweißen der Anschlussfahnen kann vorteilhafterweise von der Baufirma vorgenommen werden, welche die Bewehrung herstellt.The connection lug can simply be welded to the reinforcing steel without special welding procedures, no specially trained personnel is required for this purpose. The welding of the terminal lugs can be advantageously carried out by the construction company, which manufactures the reinforcement.

Eine besonders einfache Lösung zum Herstellen der Anschlussfahne besteht darin, das Stück Bewehrungsstahl und den Leiter durch Hartlöten bzw. durch Kerben mittels einer Kerbmuffe miteinander zu verbinden.A particularly simple solution for producing the terminal lug is to connect the piece of reinforcing steel and the conductor by brazing or notches by means of a notched sleeve with each other.

Als Bewehrungsstahl wird blanker, warmgewalzter Bewehrungsstahl verwendet. Dieser Bewehrungsstahl korrodiert in Beton praktisch nicht und ist daher für Erdungszwecke (als Grunderdungsnetz) gut geeignet. Aufgrund der relativ guten Leitfähigkeit von Beton (ca. 250 Ohm m), den - bei Fundamenten - sehr großen Betonoberflächen und den darin eingegossenen Stäben aus Bewehrungsstahl, den sogenannten "natürlichen Erdern", in großer Menge bzw. Länge ist der für Erdungen geforderte Ausbreitungswiderstand leicht zu erreichen und die erforderliche Potentialsteuerung automatisch gegeben. Durch den alleinigen Einsatz von Stahl im Beton wird jede galvanische Elementbildung von Vornherein ausgeschaltet.Reinforcing steel used is bare, hot-rolled reinforcing steel. This reinforcing steel does not corrode in concrete and is therefore well suited for grounding purposes (as a grounding network). Due to the relatively good conductivity of concrete (about 250 ohm m), the - in foundations - very large concrete surfaces and embedded therein bars of reinforcing steel, the so-called "natural earth" in large quantity or length is required for grounding propagation resistance easy to reach and given the required potential control automatically. The sole use of steel in concrete eliminates any galvanic element formation from the outset.

An den Leiter der Anschlussfahne können Betriebserdungen, Potentialausgleichsschienen oder Blitzschutzanlagen, Stahlkonstruktionen, usw. angeschlossen werden.Operating grounding, equipotential bonding rails or lightning protection systems, steel structures, etc. can be connected to the conductor of the connection lug.

Die Auslegung des Grunderdungsnetzes erfolgt im Hinblick auf die maximale thermische Belastung im Fehlerfall und auf die zulässigen Berührungsspannungen an der Erdungsanlage. Die Auslegung von Erdungsanlagen ist dem zuständigen Fachmann geläufig und wird hier nicht weiter erläutert.The design of the basic earthing network is carried out with regard to the maximum thermal load in the event of a fault and to the permissible contact voltages at the earthing system. The design of grounding systems is familiar to the person skilled in the art and will not be discussed further here.

Bei Bauwerken ohne oder mit für Erdungszwecke nicht ausreichender Bewehrung wird durch gezieltes Einbetonieren von zusätzlichem Bewehrungsstahl in den Fundamenten der erforderliche Ausbreitungswiderstand erreicht. Dies kann z.B. in Bereichen, wo sehr hohe Erdschlussströme auftreten können (Schalthäuser, Freiluftschaltanlagen,...), zur Anwendung kommen.For structures without or with insufficient reinforcement for earthing purposes, the required propagation resistance is achieved by deliberate concreting in of additional reinforcing steel in the foundations. This can e.g. in areas where very high ground fault currents can occur (switchgear, outdoor switchgear, ...) are used.

Die Erfindung ist in den Figuren 1 bis 6 beispielhaft und schematisch dargestellt.

  • Fig. 1 zeigt eine erfindungsgemäße Anschlussfahne (Ausleitung).
  • Fig. 2 zeigt, wie die für eine Erdungsanlage verwendete Metallbewehrung in sich und mit der Anschlussfahne zu verschweißen ist (Draufsicht und Seitenansicht).
  • Fig. 3 zeigt eine erfindungsgemäße Anschlussfahne (Verbindungsfahne) für Dehnfugen.
  • Fig. 4 zeigt das Gleiche wie Fig. 2, jedoch für Dehnfugen (Draufsicht und Seitenansicht).
  • Fig. 5 zeigt die Seitenansicht einer Hallenstütze, mit den erforderlichen Anschlussfahnen von der Bewehrung des Fundaments zur Stahlkonstruktion und zur Bodenplatte.
  • Fig. 6 zeigt eine Halle mit erfindungsgemäßer Erdungsanlage.
The invention is illustrated by way of example and schematically in FIGS.
  • Fig. 1 shows a connection lug (discharge) according to the invention.
  • Fig. 2 shows how the metal reinforcement used for a grounding system is to be welded in itself and with the terminal lug (top view and side view).
  • 3 shows a connecting lug (connecting lug) according to the invention for expansion joints.
  • Fig. 4 shows the same as Fig. 2, but for expansion joints (top view and side view).
  • Fig. 5 shows the side view of a hall support, with the necessary connection lugs from the reinforcement of the foundation to the steel structure and the bottom plate.
  • Fig. 6 shows a hall with inventive grounding system.

Die Anschlussfahne gemäß Fig. 1 besteht aus einem Stück blanken Bewehrungsstahl 1 mit einem Durchmesser von mindestens 10 mm und einer Länge von ca. 2 m sowie aus einem Stück isoliertem Kupferseil 2 mit einem Querschnitt von ca. 95 mm2 und ebenfalls einer Länge von ca. 2 m. Querschnitt und Längen sind dem jeweiligen Bedarfsfall anzupassen. Der Bewehrungsstahl und das Kupferseil sind mittels einer Kerbmuffe 3 aus Kupfer verbunden: der Bewehrungsstahl ist mit der Kerbmuffe durch Hartlöten (Hartlot 4) verbunden, das Kupferseil ist gekerbt. Die Kerbmuffe ist über ihre Enden hinaus mit einem Schrumpfschlauch 5 umgeben.The connecting lug according to FIG. 1 consists of a piece of bare reinforcing steel 1 with a diameter of at least 10 mm and a length of approx. 2 m as well as one piece of insulated copper rope 2 with a cross section of approx. 95 mm 2 and likewise a length of approx 2 m. Cross-section and lengths are to be adapted to the respective requirements. The reinforcing steel and the copper rope are connected by means of a notched sleeve 3 made of copper: the reinforcing steel is connected to the notch sleeve by brazing (brazing 4), the copper rope is notched. The notched sleeve is surrounded by a shrink tube 5 beyond its ends.

Fig. 2 zeigt, wie die Bewehrungsstäbe 6, die eine Länge von mindestens 5 m sowie einen Durchmesser von mindestens 10 mm aufweisen, miteinander hauptsächlich durch Rödelverbindungen 7 verbunden werden. Rödelverbindungen sind als Erderverbindungen zugelassen. Die Rödelverbindungen dienen einerseits dazu, um Längsbewehrungen 8 mit größerer Länge als der eines Bewehrungsstabes 6 herzustellen, andererseits werden dadurch die zueinander rechtwinkelig angeordneten Längsbewehrungen miteinander verbunden. Bei jenen Längsbewehrungen 9, an welche eine Anschlussfahne angeschweißt wird, werden die einzelnen Bewehrungsstäbe aus Gründen der besseren Leitfähigkeit miteinander verschweißt (schwarze Markierung in Fig. 2). Die einzelnen Schweißnähte haben eine Länge von etwa 5 cm.Fig. 2 shows how the reinforcing bars 6, which have a length of at least 5 m and a diameter of at least 10 mm, are connected to each other mainly by Rödelverbindungen 7. Rödelverbindungen are approved as earth connections. The Rödelverbindungen serve on the one hand to produce longitudinal reinforcements 8 with a greater length than that of a reinforcing bar 6, on the other hand thereby the mutually perpendicular longitudinal reinforcements are connected together. In those longitudinal reinforcements 9 to which a terminal lug is welded, the individual reinforcing rods are welded together for reasons of better conductivity (black mark in Fig. 2). The individual welds have a length of about 5 cm.

In Parapetwänden und in Umfassungsmauern ist eine der Längsbewehrungen durchgehend zu verschweißen.In Parapetwänden and in enclosing walls one of the longitudinal reinforcements is to be welded continuously.

Der Bewehrungsstahl 1 der Anschlussfahne wird an den durchgehend verschweißten Bewehrungsstäben an mindestens drei Stellen 10 über eine Länge von jeweils etwa 5 cm angeschweißt. Beim Betonieren des Fundamentes 11 wird die Anschlussfahne einschließlich der Kerbmuffe 3 ebenfalls in Beton eingegossen. Die Kerbmuffe sollte danach zumindest etwa 10 cm unter der Betonoberfläche angeordnet sein. Die Anschlussfahnen werden generell so angeordnet, dass das lose Ende des Kupferseiles möglichst nahe an der zu erdenden Anlage (Hallenstütze, Potentialausgleichsschiene und dergleichen) mit einer Überlänge von etwa 1 m herausgeführt wird.The reinforcing steel 1 of the connecting lug is welded to the continuously welded reinforcing bars at least three places 10 over a length of about 5 cm. When concreting the foundation 11, the terminal lug including the notched sleeve 3 is also poured into concrete. The notch sleeve should then be at least about 10 cm below the concrete surface. The terminal lugs are generally arranged so that the loose end of the copper rope as close to the plant to be grounded (hall support, equipotential bonding rail and the like) is led out with an excess length of about 1 m.

Das Kupferseil 2 weist am Ende einen aufgepressten Kabelschuh auf und wird in Fig. 2 etwa zu einer Gebäudewand 12 geführt und an eine dort angeordnete Potentialausgleichsschiene 13 aus Kupfer angeschraubt.The copper cable 2 has at the end of a pressed-cable lug and is guided in Fig. 2 approximately to a building wall 12 and screwed to a potential equalization rail 13 arranged there made of copper.

In Fig. 3 ist eine Anschlussfahne für Dehnfugen dargestellt, die dazu dient, zwei zu erdende Konstruktionsteile, also etwa zwei durch eine Dehnfuge getrennte Bodenplatten, leitend miteinander zu verbinden. In diesem Fall wird an einem ca. 1 m langen Kupferseil 2 mit 95 mm2 Querschnittsfläche an beiden Enden mittels Kerbmuffen 3 und Hartlot 4 ein ca. 2 m langes Stück Bewehrungsstahl 1 befestigt, wie es bereits bei Fig. 1 beschrieben wurde. Die Kerbmuffen sind wiederum von einem Schrumpfschlauch 5 umgeben.In Fig. 3, a connecting lug for expansion joints is shown, which serves to connect two to be ground construction parts, that is about two separate by an expansion joint floor panels, conductively connected to each other. In this case, a 2 m long piece of reinforcing steel 1 is attached to an approximately 1 m long copper cable 2 with 95 mm 2 cross-sectional area at both ends by means of notched sleeves 3 and brazing 4, as already described in Fig. 1. The notched sleeves are in turn surrounded by a shrink tube 5.

Fig. 4 zeigt, wie die Anschlussfahne 1, 2 an zwei Bewehrungsstäben der jeweils durchgehend verschweißten Längsbewehrung 9 von z.B. zwei benachbarten Bodenplatten an beiden Seiten der Dehnfuge 14 angeschweißt werden. Diese Anschlussfahne eignet sich nicht nur für Dehnfugen, sondern generell zum Verbinden von metallbewehrten Bauteilen.Fig. 4 shows how the connecting lug 1, 2 on two reinforcing bars of each longitudinally welded longitudinal reinforcement 9 of e.g. two adjacent floor panels are welded to both sides of the expansion joint 14. This connection lug is not only suitable for expansion joints, but generally for joining metal-reinforced components.

In Fig. 5 ist eine Hallenstütze 15 dargestellt, deren Ankerschrauben 17 im Stützenfundament 18 eingebettet sind, welches eine Metallbewehrung 6 aufweist. An die Bewehrung 6 des Stützenfundaments 18 werden sowohl die Anschlussfahne 31, 32 für die Stahlkonstruktion als auch die Verbindungsfahne 21, 22, 23 für die angrenzende Bodenplatte angeschweißt.In Fig. 5, a hall support 15 is shown, the anchor bolts 17 are embedded in the pillar foundation 18, which has a metal reinforcement 6. To the reinforcement 6 of the support foundation 18, both the terminal lug 31, 32 welded to the steel structure and the connecting lug 21, 22, 23 for the adjacent base plate.

Wichtig ist, dass die Verbindungsfahne zur Bodenplatte 19 so situiert wird, dass das biegsame Kupferseil 22 im Bereich der Dehnfuge zu liegen kommt und in den angrenzenden Betonkörpern 18, 19 mindestens 10 cm einbetoniert wird.It is important that the connecting lug is positioned to the bottom plate 19 so that the flexible copper rope 22 comes to lie in the region of the expansion joint and in the adjacent concrete bodies 18, 19 at least 10 cm is embedded in concrete.

Das zugehörige Kupferseil 22 führt bis etwa auf die Höhe der Fundamentanker 16 und geht dann wieder in ein weiteres Stück Bewehrungsstahl 23 der Anschlussfahne über. Dieses Stück Bewehrungsstahl 23 reicht bis zur unteren Begrenzung des Stützenfundaments 18 und ist dort an der Metallbewehrung 6 (Schweißstellen 10) angeschweißt. Zusätzlich wird das Stück Bewehrungsstahl 23 auch mit dem Fundamentankern 16 verschweißt (Schweißsstelle 20). Diese Anschlussfahne 21, 22, 23 dient somit der leitenden Verbindung der Bodenplatte 19 mit der Metallbewehrung 6 des Stützenfundaments 18.The associated copper cable 22 leads to about the height of the foundation anchor 16 and then goes back to another piece of reinforcing steel 23 of the connection lug. This piece of reinforcing steel 23 extends to the lower boundary of the support foundation 18 and is there welded to the metal reinforcement 6 (welds 10). In addition, the piece of reinforcing steel 23 is also welded to the foundation anchor 16 (weld 20). This terminal lug 21, 22, 23 thus serves the conductive connection of the bottom plate 19 with the metal reinforcement 6 of the support foundation 18th

Die Erdung der Stützen 15 erfolgt über weitere Anschlussfahnen 31, 32, bei welchen das Kupferseil 32 mit der Stütze 15 leitend verbunden wird. Das Kupferseil 32 wird bis in das Stützenfundament 18 geführt und geht erst dort in ein Stück Bewehrungsstahl 31 über, welches am Fundamentanker 16 (Schweißsstelle 20) sowie an der Metallbewehrung 6 (Schweißstellen 10) des Stützenfundaments 18 angeschweißt ist.The grounding of the supports 15 via other terminal lugs 31, 32, in which the copper wire 32 is conductively connected to the support 15. The copper cable 32 is guided into the support foundation 18 and only there transitions into a piece of reinforcing steel 31, which is welded to the foundation anchor 16 (welding point 20) and to the metal reinforcement 6 (welds 10) of the support foundation 18.

Die Verbindungsstellen zwischen Bewehrungsstahl 21, 23, 31 und Kupferseil 22, 32 sind zur besseren Kennzeichnung mit jeweils einem schwarzen Punkt markiert.The joints between reinforcing steel 21, 23, 31 and copper cable 22, 32 are marked for better identification, each with a black dot.

Zusätzlich wird die Metallbewehrung der Parapetwand 24 über ein Stück Bewehrungsstahl 25 mit der Metallbewehrung 6 des Stützenfundaments 18 leitend verbunden.In addition, the metal reinforcement of the parapet wall 24 is conductively connected to the metal reinforcement 6 of the support foundation 18 via a piece of reinforcing steel 25.

In Fig. 6 ist der Hallenboden einer Produktionsanlage mit erfindungsgemäßer Erdungsanlage in Draufsicht dargestellt. Die umlaufende Parapetwand 24 weist eine strichpunktiert dargestellte durchgehend verschweißte Metallbewehrung 6 auf. Der Hallenboden besteht aus einzelnen rechteckigen Platten 34, welche mittels Anschlussfahnen 41 für Dehnfugen (siehe Fig. 4) untereinander verbunden sind. Im Hallenboden sind ebenfalls strichpunktiert dargestellte durchgehend verschweißte Metallbewehrungen angeordnet. Über fallende oder steigende Erder 1 (durch Linien mit Kreuz dargestellt) sind die zu erdenden Anlagen, etwa die Hallenstützen 15, mit durchgehend verschweißten Metallbewehrungen 6 verbunden. Die Ausleitungen 2 (durch Erdungspfeile dargestellt) können in den einzelnen Räumen der Halle (Transformatorraum 38, Elektroschaltraum 39, Hydraulikraum 40) an Potentialausgleichsschienen angeschlossen werden. Im strichliert dargestellten Hallenberech 36 ist ein Erdungsmaschennetz kleiner 20x20 m vorgesehen. Zwei der Bühnenstützen 35 der Bühne 37 sind ebenfalls über Erder 1 mit der durchgehend verschweißten Bewehrung verbunden.In Fig. 6, the hall floor of a production plant with inventive grounding system is shown in plan view. The peripheral Parapetwand 24 has a dash-dotted lines continuously welded metal reinforcement 6. The hall floor consists of individual rectangular plates 34 which are interconnected by means of connecting lugs 41 for expansion joints (see FIG. 4). In the hall floor are also shown dash-dotted continuously welded metal reinforcements arranged. About falling or rising earth electrode 1 (represented by lines with cross) are connected to ground systems, such as the hall supports 15, with continuously welded metal reinforcements 6. The spouts 2 (represented by grounding arrows) can be connected to equipotential busbars in the individual rooms of the hall (transformer room 38, electrical control room 39, hydraulic room 40). In the indoor area 36, shown in dashed lines, a grounding mesh net smaller 20x20 m is provided. Two of the stage supports 35 of the stage 37 are also connected via earth electrode 1 with the continuously welded reinforcement.

Mehrere einzelne Gebäude sollten mit isoliertem Kupferseil verbunden werden. Zubauten oder Einbauten in bestehende Bauwerke sollten mit den Erdern der bestehenden Gebäude an mindestens zwei Stellen verbunden werden.Several individual buildings should be connected with insulated copper wire. Additions or installations in existing structures should be connected to the earths of existing buildings in at least two places.

Die Erfindung ist für alle Umgebungsbedingungen und Bodenverhältnisse anwendbar, einfach zu dokumentieren und aufgrund des standardisierten Materials und der gleichbleibenden Arbeitsgänge von der jeweiligen Baufirma ohne besondere Überwachung realisierbar.The invention is applicable to all environmental conditions and soil conditions, easy to document and due to the standardized material and the consistent operations by the respective construction company without special monitoring feasible.

Die Erfindung ermöglicht eine einfachere, kostengünstigere und weltweit anwendbare Realisierung von Erdungsanlagen, indem der Bewehrungsstahl der Fundamente systematisch verschweißt wird (natürlicher Erder) und an diesem vorgefertigte, standardisierte Anschluss- oder Verbindungsfahnen angeschweißt werden. Das Kupferseil der Anschlussfahne wird mit der zu erdenden Ausrüstung (Stahlkonstruktion, Potentialausgleichschiene, Blitzschutzableitungen usw.) mittels aufgepresster Kabelschuhe und Schrauben verbunden. Zum Überbrücken von Dehnfugen werden Anschlussfahnen wie vor, jedoch mit beidseitig am Bewehrungsstahl befestigten Kupferseilen verwendet. Auf diese Weise können aufwändige Schweißverfahren und jede Art von Korrosion vermieden werden.The invention enables a simpler, more cost-effective and globally applicable implementation of earthing systems by the reinforcing steel of the foundations is systematically welded (natural earth) and welded to this prefabricated, standardized connection or connection lugs. The copper wire of the connecting lug is connected to the equipment to be grounded (steel construction, equipotential bonding bar, lightning arrester, etc.) by means of pressed-on cable lugs and screws. For bridging expansion joints, connection lugs are used as before, but with copper cables attached to both sides of the reinforcing steel. On This way, elaborate welding processes and any kind of corrosion can be avoided.

Claims (8)

  1. Prefabricated connecting lug for conductive connection of installations to reinforcing steel (6) which is enclosed in concrete, for earthing purposes, characterized in that the connecting lug is composed of at least one piece of reinforcing steel (1, 21, 23, 31) in the form of a rod or rods, which can be welded to the reinforcing steel (6) which is enclosed in concrete, and of at least one flexible insulated conductor, such as a copper cable (2, 22, 32) which can be connected to the installation.
  2. Connecting lug according to Claim 1 for bridging expansion joints, characterized in that the conductor (2, 22) is connected at both ends to in each case one piece of reinforcing steel (1; 21, 23).
  3. Connecting lug according to one of Claims 1 or 2, characterized in that the reinforcing steel (1, 21, 23, 31) and the conductor (2, 22, 32) are connected to one another by means of a notched collar (3).
  4. Connecting lug according to Claim 3, characterized in that the reinforcing steel (1, 21, 23, 31) is connected to the notched collar (3) by means of a brazed joint (4).
  5. Connecting lug according to Claim 3 or 4, characterized in that the notched collar (3) is surrounded by a shrink sleeve (5) for additional protection against moisture.
  6. Earthing installation, comprising reinforcing steel (6, 8, 9) which is enclosed in concrete and to which at least one prefabricated connecting lug is welded for conductive connection of earthing installations to installations to be grounded, or of installations to be grounded to grounded installations, characterized in that at least one connecting lug according to one of Claims 1 to 5 is formed, and the piece of reinforcing steel (1, 21, 23, 31) is welded to the reinforcing steel (9) which is enclosed in concrete.
  7. Earthing installation according to Claim 6, characterized in that the notched collar (3) for connection of the piece of reinforcing steel (1, 21, 23, 31) to the conductor (2, 22, 32) is likewise enclosed in concrete.
  8. Method for production of an earthing installation according to Claim 6 or 7, characterized
    in that the reinforcing steel (6, 8, 9) is laid and connected in accordance with its function as reinforcement and as part of the earthing installation,
    in that at least one prefabricated connecting lug according to one of Claims 1 to 5 is welded to the reinforcing steel (9), and
    in that the reinforcing steel (6, 8, 9) and weld point (10) where the connecting lug is welded to the reinforcing steel are enclosed in concrete.
EP03003914A 2002-03-19 2003-02-21 Connection terminal and grounding device Expired - Lifetime EP1347534B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT4142002 2002-03-19
AT0041402A AT411556B (en) 2002-03-19 2002-03-19 CONNECTING FLAG AND EARTHING SYSTEM

Publications (3)

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EP1347534A2 EP1347534A2 (en) 2003-09-24
EP1347534A3 EP1347534A3 (en) 2005-07-13
EP1347534B1 true EP1347534B1 (en) 2007-12-19

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Application Number Title Priority Date Filing Date
EP03003914A Expired - Lifetime EP1347534B1 (en) 2002-03-19 2003-02-21 Connection terminal and grounding device

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EP (1) EP1347534B1 (en)
AT (2) AT411556B (en)
DE (1) DE50308826D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113169462A (en) * 2018-12-03 2021-07-23 法尔福控股合资有限公司 Electrically conductive arrangement, concrete component, method and use

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102694327B (en) * 2012-06-06 2014-04-16 黄岩电力公司 Processing method of 10kV switch cable electroscopic connection wire
CN105071063B (en) * 2015-05-15 2017-08-18 国家电网公司 A kind of soft graphite is combined earthing material anticorrosion connection method
CN107959137A (en) * 2017-12-23 2018-04-24 河南智金网络技术有限公司 A kind of curve band steel strengthens the earthing or grounding means of support
CN110165434B (en) * 2019-06-17 2024-01-23 中国电建集团西北勘测设计研究院有限公司 Heliostat pile foundation grounding device and grounding method for tower type photo-thermal power station

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
US4129744A (en) * 1976-08-02 1978-12-12 Rca Corporation Solder connection between copper and aluminum conductors
US4361719A (en) * 1981-03-17 1982-11-30 William Hyde Earthing systems
JPH11122766A (en) * 1997-10-15 1999-04-30 Kansai Tech Corp Pole
DE20101299U1 (en) * 2001-01-25 2001-04-05 Weitkowitz Elektro GmbH, 31224 Peine Welding strap for an earthing bridge
DE20101301U1 (en) * 2001-01-25 2001-03-29 Weitkowitz Elektro GmbH, 31224 Peine Connection socket for an earthing bridge
DE20101302U1 (en) * 2001-01-25 2001-03-29 Weitkowitz Elektro GmbH, 31224 Peine Connection socket for an earthing bridge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113169462A (en) * 2018-12-03 2021-07-23 法尔福控股合资有限公司 Electrically conductive arrangement, concrete component, method and use

Also Published As

Publication number Publication date
EP1347534A3 (en) 2005-07-13
DE50308826D1 (en) 2008-01-31
ATE381797T1 (en) 2008-01-15
ATA4142002A (en) 2003-07-15
EP1347534A2 (en) 2003-09-24
AT411556B (en) 2004-02-25

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