EP0390836A1 - Armoire pour une installation de commande blindee, procede pour passer hermetiquement des conducteurs a travers une ouverture menagee dans une paroi d'une tellearmoire et utilisation d'un outil pour la mise en oeuvre du procede - Google Patents

Armoire pour une installation de commande blindee, procede pour passer hermetiquement des conducteurs a travers une ouverture menagee dans une paroi d'une tellearmoire et utilisation d'un outil pour la mise en oeuvre du procede

Info

Publication number
EP0390836A1
EP0390836A1 EP89900335A EP89900335A EP0390836A1 EP 0390836 A1 EP0390836 A1 EP 0390836A1 EP 89900335 A EP89900335 A EP 89900335A EP 89900335 A EP89900335 A EP 89900335A EP 0390836 A1 EP0390836 A1 EP 0390836A1
Authority
EP
European Patent Office
Prior art keywords
plate
wall
cable
opening
cables
Prior art date
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.)
Withdrawn
Application number
EP89900335A
Other languages
German (de)
English (en)
Inventor
Lennart LÄRKA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RABOMS ELEKTRISKA AB
Original Assignee
RABOMS ELEKTRISKA AB
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 RABOMS ELEKTRISKA AB filed Critical RABOMS ELEKTRISKA AB
Publication of EP0390836A1 publication Critical patent/EP0390836A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/12—Distribution boxes; Connection or junction boxes for flush mounting
    • 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
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/305—Cable entries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/081—Bases, casings or covers
    • H02G3/083—Inlets

Definitions

  • a further drawback of conventional lead-in flanges is that they require a special fitting and a matching rubber seal for each hole and cable.
  • the diameter of such fittings is fairly large, and to tighten the fittings a big space around each cable is necessary.
  • the fittings further demand a great deal of work for mounting of the cables.
  • the flange first used must be replaced by a flange having a different, matching pattern of holes.
  • the present invention aims at obviating the above drawbacks of conventional lead-in flanges in cabinets containing electrical equipment, and at creating oppor ⁇ tunities for simple, quick and conveniently performed leading-in of electric cables or other conductors.
  • this is achieved by a method which is characterised in that a plate of elastic material, such as rubber or plastic, and preferably of uniform thickness is used as a sealing element completely covering the opening in the wall of the cabinet, and that for each cable, there is cut, without removing any material, a slit in said elastic plate, and that each cable is forced through said slit, while pressing aside and compressing the elastic material in the area of the slit.
  • the invention also relates to a sealing element for carrying out the method and a tool for leading a cable through the sealing element.
  • the characteristic features of the sealing element and the tool are stated in the appended claims.
  • a further essential advantage is that one or more cables already mounted can be removed- from the installation by simply being withdrawn from the plate which because of its elastic properties then automatically fills up the cavity earlier occupied by the cable. If one or more cables are removed, the sealing plate itself thus need not be replaced, which results in great cost savings both in storing of sealing elements and in dismounting and remounting of cables in the installation.
  • FR 1,540,647, FR 2,171,021, SE 354,387 and DE 2,109,548 disclose plates or elements which are adapted to lead cables to switch cabinets or the like and which are at least partly made of elastic material.
  • a common feature of these prior art lead-in plates is that for each cable they are provided with a preformed membrane or thin part which is readily penetrated to leave a permanent hole. This means that the hole remains open if the associated cable is later removed, and the lead-in plate must thus in its entirety be replaced by a new plate, in case the wiring of the installation need be rearranged.
  • the lead-in membranes are further prefabricated in given patterns which restrict the electrician's liberty to arrange the wires in any desired manner when leading the wires into the cabinet.
  • GB Patent Specification 1,507,027 discloses a sealing device for electric cables or conductors, which is based on the use of a rubber plate having one or more holes and mounted in a sleeve-coupling comprising at least two parts which via a screw joint can be tightened relative to each other, while the material of the rubber plate is being compressed to cause the rubber to sealingly engage the conductor! s) passed through the respective holes in the rubber plate.
  • the holes can be provided just prior to use
  • the inventive idea which can be read from the publication is entirely limited to the concept of providing, in one way or another (by drilling, cutting or punching), precisely holes, i.e. areas in which material has been removed, in the rubber plate. After the holes have been made, they remain irrevocably in the rubber plate which thus must be discarded and replaced by a new lead-in plate in case of rearrangement of the wires.
  • SE 7809750-8
  • Fig. 1 is an exploded view of different parts included in the sealing or lead-in element according to the invention
  • Fig. 2 is a perspective view of the same element mounted in a cabinet.
  • a casing containing electrical equipment is designated 1.
  • the casing may consist of a simple switch box, a cabinet or a large switchboard.
  • a wall 2 of the cabinet 1 there is formed an opening 3 which can preferably be of standard design having a rectangular shape with bevelled corners.
  • the wall 2 is provided with four threaded holes 4 for a corresponding number of fixing screws 5.
  • This lead-in plate 7 may preferably have a thickness of 10-15 mm and be made of pure rubber in which a reinforcement layer 8 suitably consisting of tow or ' woven textile fabric of some suitable kind is embedded or vulcanised.
  • This reinforcement layer 8 gives the rubber plate 7 excellent rigidness and stability ensuring that each cable or wire 6 is automatically retained in its mounted position, without the tendency of the rubber to return to its original shape being lost.
  • Four holes 9 are formed in the rubber plate 7 which match the holes 4 in the wall 2 of the cabinet 1.
  • the plate 7 is adapted to coact with a frame 10 of metal or rigid plastic which has a through opening 11 of the same shape, in this case substantially rectangular, as the opening 3 in the cabinet 1.
  • the frame 10 also has four holes 12 whose mutual positions correspond to the positions of the holes 9 in the plate 7 and the holes 4 in the cabinet 1.
  • the frame 10 itself can suitably be made of thin metal sheet which is compression moulded, while forming both inner edge portions 13 which extend perpendicular away from the planar sheet metal web and are pressed into the rubber plate 7 as the fixing screws 5 are being tightened, and slightly more shallow outer edge portions 14 em ⁇ bracing and protecting the edge portions of the rubber plate 7 in the mounted state.
  • a tool generally designated 15 comprises a handle 16 and, extending therefrom, a metal blade 17 of arcuate cross section which tapers successively from the handle 16 to a narrow front tip 18.
  • the handle 16 is formed with a successively tapering rounded recess 19 along which a cable 6 can easily slide.
  • the leading in of a cable 6 by means of the tool 15 is carried out in the following manner.
  • an arcuate slit 20 is formed which widens as the tool moves through the plate.
  • the cable 6 is passed through the slit 20 thus cut, the cable being kept in engagement with the inside of the blade 17.
  • the rubber material in the area of the slit is pressed aside and compressed. This means that the cable is automatically firmly pinched by the rubber material when the cable front end has been passed through the rubber plate and the tool 15 has been removed. After mounting, the cable will thus be retained in its given position solely by the pressure applied to the cable by the compressed rubber material.
  • this pressure also provides for an extremely tight seal between the cable and the surrounding rubber material. If an individual cable is to be removed after some time, it can be disconnected from the associated connecting means in the cabinet 1 and be withdrawn through the lead-in plate 7 in one motion. Then the rubber material which enclosed the cable returns to its original shape while filling up the space pre ⁇ viously occupied by the cable. In other words, the cable leaves but the arcuate cut as shown at 20. In actual practice, the cut is completely sealed, which means that after removal of the cable the sealing action of the rubber plate is intact.
  • the invention is, of course, not limited merely - to the embodiment described above and shown in the drawing.
  • inventive lead-in plate of some material other than rubber, e.g. various types of plastic.
  • shape of the lead-in plate can deviate from the one shown. The essential* thing is that the plate fully covers and seals the opening in the wall to which it is applied. It may further be pointed out that the slit which is cut in the plate can have a shape other than arcuate, e.g. a linear shape.
  • the fixing frame of metal, it is possible - and in practice preferred - to use plastic. It may finally be mentioned that the frame as well as the lead-in plate can be attached to the cabinet in some other manner than by screws, for example by means of so-called drivable rivets or other types of rapidly applicable fixing means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Power Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)

Abstract

L'élément décrit, qui sert à faire passer hermétiquement un câble (6) à travers une paroi (2) d'une armoire (1) contenant des équipements électriques, se compose d'une plaque (7) en matériau élastique, tel que caoutchouc ou plastique, et d'épaisseur uniforme, plaque qui est destinée à recouvrir complètement une ouverture ménagée dans la paroi (2) et dans laquelle on peut éventuellement découper des fentes (20) dont la position peut être choisie, sans retirer une quelconque partie du matériau, les câbles (6) étant passés à travers lesdites fentes, pendant que le matériau élastique circonvoisin est pressé latéralement et comprimé.
EP89900335A 1987-12-04 1988-11-16 Armoire pour une installation de commande blindee, procede pour passer hermetiquement des conducteurs a travers une ouverture menagee dans une paroi d'une tellearmoire et utilisation d'un outil pour la mise en oeuvre du procede Withdrawn EP0390836A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8704862 1987-12-04
SE8704862A SE458490B (sv) 1987-12-04 1987-12-04 Foerfarande och tillslutningselement foer taetande genomfoering av ledningar genom en oeppning uppvisande vaegg till ett skaap eller hoelje innehaallande elektrisk materiel samt anvaendning av ett verktyg foer genomfoering av en ledning genom ett tillslutningselement

Publications (1)

Publication Number Publication Date
EP0390836A1 true EP0390836A1 (fr) 1990-10-10

Family

ID=20370504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89900335A Withdrawn EP0390836A1 (fr) 1987-12-04 1988-11-16 Armoire pour une installation de commande blindee, procede pour passer hermetiquement des conducteurs a travers une ouverture menagee dans une paroi d'une tellearmoire et utilisation d'un outil pour la mise en oeuvre du procede

Country Status (7)

Country Link
EP (1) EP0390836A1 (fr)
AU (1) AU2793489A (fr)
DK (1) DK165862C (fr)
FI (1) FI90810C (fr)
NO (1) NO175658C (fr)
SE (1) SE458490B (fr)
WO (1) WO1989005533A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5871914A (en) * 1993-06-03 1999-02-16 Intelligene Ltd. Method for detecting a nucleic acid involving the production of a triggering RNA and transcription amplification
US6200753B1 (en) 1993-06-03 2001-03-13 Intelligene Ltd. Detection of nucleic acid sequences
US6057099A (en) * 1994-12-02 2000-05-02 Intelligene Ltd. Detection of nucleic acid sequences
DE29912630U1 (de) * 1999-07-23 2000-12-07 Asecos Gmbh Anordnung für Installationseinrichtungen
FR2808409B1 (fr) * 2000-04-27 2002-06-14 Schneider Electric Ind Sa Enveloppe pour appareils electriques
EP1217703A1 (fr) * 2000-12-22 2002-06-26 Inventio Ag Armoire de contrôle pour ascenseur
JP2002211848A (ja) 2000-12-22 2002-07-31 Inventio Ag 昇降機のための制御ボックス
FR2856203B1 (fr) * 2003-06-13 2005-09-16 Paul Sibert Presse-etoupe destine au passage etanche de cables, kit de montage et procede de mise en place.
EP2139086B1 (fr) * 2008-06-26 2017-01-18 Schneider Electric Industries SAS Plaque flexible à membrane pour une passe-câbles
FR2968471B1 (fr) * 2010-12-02 2012-12-07 Schneider Electric Ind Sas Bouchon pour gaine electrique
EP2515397A1 (fr) * 2011-04-18 2012-10-24 ABB Technology AG Ensemble de fixation et de séparation pour tableau d'appareillage de commutation
DE102018109331A1 (de) 2018-04-19 2019-10-24 Bimed Teknik Aletler Sanayi Ve Ticaret A.S. Strangdurchführungsvorrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1630420A (en) * 1925-12-22 1927-05-31 Garland Richard Plugging knife
GB1507027A (en) * 1975-04-30 1978-04-12 Hawke Cable Glands Ltd Sealing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8905533A1 *

Also Published As

Publication number Publication date
DK165862C (da) 1993-06-21
DK165862B (da) 1993-01-25
NO175658C (no) 1994-11-30
DK135290D0 (da) 1990-05-31
SE8704862D0 (sv) 1987-12-04
SE458490B (sv) 1989-04-03
FI90810C (fi) 1994-03-25
NO902432L (no) 1990-07-16
FI902770A0 (fi) 1990-06-04
NO902432D0 (no) 1990-05-31
DK135290A (da) 1990-06-01
WO1989005533A1 (fr) 1989-06-15
FI90810B (fi) 1993-12-15
AU2793489A (en) 1989-07-05
NO175658B (fr) 1994-08-01

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