WO2013035078A2 - Protection de câbles - Google Patents

Protection de câbles Download PDF

Info

Publication number
WO2013035078A2
WO2013035078A2 PCT/IB2012/054644 IB2012054644W WO2013035078A2 WO 2013035078 A2 WO2013035078 A2 WO 2013035078A2 IB 2012054644 W IB2012054644 W IB 2012054644W WO 2013035078 A2 WO2013035078 A2 WO 2013035078A2
Authority
WO
WIPO (PCT)
Prior art keywords
cable
protector
connectors
interconnection member
receiving zone
Prior art date
Application number
PCT/IB2012/054644
Other languages
English (en)
Other versions
WO2013035078A3 (fr
Inventor
Johannes VAN ZYL
Renier JANSE VAN VUUREN
Original Assignee
Aman Technologies (Pty) Ltd
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 Aman Technologies (Pty) Ltd filed Critical Aman Technologies (Pty) Ltd
Publication of WO2013035078A2 publication Critical patent/WO2013035078A2/fr
Publication of WO2013035078A3 publication Critical patent/WO2013035078A3/fr
Priority to ZA2014/02230A priority Critical patent/ZA201402230B/en

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
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/05—Suspension arrangements or devices for electric cables or lines
    • H02G7/053—Suspension clamps and clips for electric overhead lines not suspended to a supporting wire
    • 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
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/12—Devices for maintaining distance between parallel conductors, e.g. spacer
    • 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
    • H02G2200/00—Indexing scheme relating to installation of electric cables or lines covered by H02G
    • H02G2200/10—Prevention of theft of valuable metals

Definitions

  • This invention relates to protection of cables.
  • the invention relates to a cable protector, a cable protection arrangement and to a method of protecting a cable.
  • Cables that contain metals such as Copper, Aluminium and other metals are sometimes vulnerable to theft.
  • Methods used to conduct cable theft operations include cutting the cables and ripping them from overhead masks or from underground conduits.
  • This invention aims to address this problem.
  • a cable protector which includes
  • each cable connector each defining a cable-receiving zone operatively extending co-axially with a cable on which the cable protector is to be mounted, the cable connectors being mechanically connectable to two adjacent cables, the cable connectors each having gripping means for gripping onto the cables;
  • the isolated interconnection member may be capable of withholding a tensile strength exerted thereon when a cable to which it is connected is severed.
  • the interconnection member In a normal state, the interconnection member may extend transversely from the cable-receiving zone. In use, when a cable is cut the cable connectors may be urged apart by the recoil force of the cables forcing the interconnection member to extend substantially parallel with the two cables, being permitted thereto by the articulation joints between the cable connectors and the interconnection member.
  • the term "normal state" refers to the state in which the interconnection member is installed onto two adjacent cables and refers to an unstressed state of the interconnection member.
  • the interconnection member In use, when a cable is cut, the interconnection member operates in a "stressed state" in which the at least two cable connectors grip onto the cables in the cable receiving zones, being held together by the isolated interconnection member under tensile stress induced by the recoil force of at least one of the cables.
  • the articulation joint may permit movement of the isolated interconnection member in a plane defined between two adjacent cables.
  • the gripping means may be self-locking, thereby to automatically grip onto the cable when a cable onto which the cable connector is mechanically connected is severed and the isolated interconnection member no longer extends transversely form the cable-receiving zone and operates in a stressed state.
  • the isolated interconnection member may include isolators between the at least two cable connectors to prevent ionisation and arc-over between the two cable connectors.
  • the interconnection member may be stiff to retain the spacing between the cable connectors. Alternatively the interconnection member may be flexible to permit relative movement between the cable connectors.
  • a clamp having a washer receiving slot extending transversely to the cable-receiving zone
  • gripping means defined by a split washer receivable into the transverse washer receiving slot of the clamp.
  • the cable-receiving zone may be defined by an aperture in the washer.
  • the split washer may be bent open to allow a cable to be received within the centre circular aperture of the washer.
  • the washer may twist on the cable and operates in a stressed state, thereby gripping onto the cable and preventing movement between the grip and the cable along the length of the cable.
  • the clamp may include receiving zones, for receiving the articulation joint.
  • At least one of the at least two cable connectors may be defined by two open-cylindrical shaped members having tapered bores co-axial with the cable-receiving zone.
  • the gripping means may be in the form of wedges receivable into the tapered bores.
  • the wedges may be arranged circumferentially around the cable-receiving zone for gripping onto the cable.
  • the wedges may define an inner cylindrical passage into which a cable is receivable, the passage defining the cable-receiving zone.
  • the wedges in the tapered bore of one open-cylindical shaped members may be oppositely arranged to the wedges in the tapered bore of the other open-cylindical shaped member, the wedges of the two open-cylindical shaped members thereby acting in opposing directions, in use when a cable is cut on either side of the cable connector, the coiling action of the cable will cause one of the sets of wedges to engage the cable to prevent it from being withdrawn from either side of the cable connector.
  • at least one of the at least two cable connectors may be in the form of a U-shaped member, having an opening for receiving the cable into the cable receiving zone which is defined inside the U-shaped member.
  • the cable connector may be provided with a closing member arranged to close an open side of the U-shaped member once a cable is received into the cable-receiving zone.
  • a closing member arranged to close an open side of the U-shaped member once a cable is received into the cable-receiving zone.
  • a cable protection arrangement which includes
  • the invention extends to a method of protecting a cable, which includes
  • Figure 1 shows a three dimensional view of one embodiment of a cable protector in accordance with the invention
  • Figure 2 shows the cable protector of Figure 1 installed onto two adjacent cables
  • Figure 3 shows a sectional view at line III and III
  • FIGS. 4 and 5 show another embodiment of a cable protector in accordance with the invention
  • Figure 6 show a further embodiment of a cable protector in accordance with the invention.
  • a cable protector 10 is shown in three dimensions.
  • the cable protector 10 includes two cable connectors 12, 14.
  • the cable connectors in this example are each defined by two open-cylindrical shaped members 16, 18 and 21 , 23 (not visible in Figurel ) respectively.
  • Each member 16, 18 and 21 , 23 has a tapered centre opening 16.1 , 18.1 , 21.1 , 23.1 (not visible) and is shaped and dimensioned to receive a cable.
  • the centre openings 16.1 , 18.1 , 20.1 , 22.1 are in the form of tapered bores and define cable receiving zones operatively extending co-axially to a cable, when in use.
  • the bores of the pairs of members 16, 18 and 21 , 23 are oppositely tapered towards the operative outer direction.
  • the gripping means is in the form of wedges receivable into the tapered bores.
  • Each member 16, 18, 21 , 23 includes a set of four wedges 16.2 to 16.5, 18.2 to 18.5, 21.2 to 21.5 (not visible) and 23.2 to 23.5 (not visible) respectively, arranged circumferentially inside the tapered bores 16.1 , 18.1 , 21.1 (not visible), 23.1 (not visible).
  • the wedges 16.2 to 16.5, 18.2 to 18.5, 21.2 to 21.5 (not visible) and 23.2 to 23.5 (not visible) are all elongated, wedge shaped and extend coaxial to the cable-receiving zones 16.1 , 18.1 , 21.1 , 23.1.
  • the wedges 16.2 to 16.5, 18.2 to 18.5, 21.2 to 21.5 and 23.2 to 23.5 being in contact with a cable to be installed into the cable connectors 12, 14 and being wedge shaped in the tapered bores 16.1 , 18.1 , 20.1 , 22.1 defining self-locking grips.
  • the grips are activated when an installed cable is jerked in either operative outer direction of the pairs of members 16, 18 and 21 , 23.
  • the cable protector 10 further includes an isolated interconnection member 20 connected to the two cable connectors 12, 14.
  • the cable protector includes articulation joints 15, 17 between the interconnection member 20 and the cable connectors 12, 14.
  • the isolated interconnection member 20 includes isolators 26, 28 between the cable connectors 12, 14 to improve the isolation properties of the protector when installed. The isolators 26, 28 will reduce the possibility of arc-over between two adjacent cables.
  • the interconnection member 20 is stiff to retain the spacing between cables. In other examples, not shown, the interconnection member may be flexible to permit free independent movement of cables.
  • the cable protector 10 is installed onto two adjacent, parallel running cables 22, 24.
  • This arrangement defines a cable protection arrangement also in accordance with the invention.
  • the cable protector 10 is installed by clipping the cable connectors 12, 14 over the cables 22, 24.
  • the interconnection member 20 extends roughly transversely from the cable receiving zones 16.1 , 18.1 and 21.1 , 23.1 in the normal position.
  • the wedges 16.2 to 16.5, 18.2 to 18.5, 21.2 to 21.5 and 23.2 to 23.5 being wedged into the tapered bores 16.1 , 18.1 , 21.1 , 23.1.
  • the cable protector 50 includes two cable connectors of which only one is indicated as 52.
  • the cable connector 52 is in the form of a U-shaped member 54, having an opening for receiving the cable into the cable receiving zone which is defined inside the U-shaped member 54.
  • the cable connector 52 is provided with a closing member 56.
  • the cable connector 52 is connected to an isolated interconnection member 58 via a hinge 59.
  • the U-shaped member 54 and the closing member 56 are connected to each other by means of two locking pins 60, 62.
  • the locking pins 60, 62 protrude through apertures 54.1 , 54.2 and 56.1 (not visible), 56.2.
  • the U-shaped member 54 and the closing member 56 lock around a cable when the pins 60, 62, are inserted through the apertures 54.1 , 54.2, 56.1 , 56.2.
  • a cable connector 60 is shown in accordance with yet another embodiment installed on a cable 74 (shown in broken lines).
  • the cable connector 60 includes a clamp 62, having a washer receiving slot 64 extending transversely to the cable receiving-zone and gripping means defined by a split washer 66 receivable into the transverse washer receiving slot 64 of the clamp 62.
  • the cable-receiving zone is defined by a central aperture (not shown) in the washer 66.
  • the split washer 66 may be bent open to allow the cable 74 to be received into the aperture in the washer 66, and be re-closed thereafter to fit in the washer receiving slot 64.
  • the washer 66 When a differential tensile force is exerted on the cable across the cable connector 60, the washer 66 will twist on the cable, thereby gripping onto the cable and preventing longitudinal movement of the cable 74 in the cable connector 60.
  • the clamp 62 includes apertures 68, 70 for receiving an articulation axis 72 defining an articulation joint.
  • the installation of the cable protector 10 described provides a method of protecting a cable.
  • the inventor is of the opinion that the present invention, as described provides a new cable protector, a new cable protection arrangement and a new method of protecting a cable.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

L'invention porte sur un protecteur de câbles, lequel protecteur comprend au moins deux connecteurs de câble, définissant chacun une zone de réception de câble s'étendant de façon fonctionnelle coaxialement avec un câble sur lequel le protecteur de câbles doit être monté, les connecteurs de câble pouvant être mécaniquement reliés à deux câbles adjacents, les connecteurs de câble ayant chacun des moyens de saisie pour effectuer une saisie sur les câbles. Le protecteur de câbles comprend de plus un élément d'interconnexion isolé relié aux au moins deux connecteurs de câble pour maintenir les connecteurs de câble ensemble et un raccord d'articulation disposé entre chacun des connecteurs de câble et une extrémité de l'élément d'interconnexion pour permettre une articulation entre le connecteur et l'élément d'interconnexion.
PCT/IB2012/054644 2011-09-08 2012-09-07 Protection de câbles WO2013035078A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA2014/02230A ZA201402230B (en) 2011-09-08 2014-03-26 Protection of cables

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA201101764 2011-09-08
ZA2011/01764 2011-09-08

Publications (2)

Publication Number Publication Date
WO2013035078A2 true WO2013035078A2 (fr) 2013-03-14
WO2013035078A3 WO2013035078A3 (fr) 2013-08-08

Family

ID=46968329

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2012/054644 WO2013035078A2 (fr) 2011-09-08 2012-09-07 Protection de câbles

Country Status (2)

Country Link
WO (1) WO2013035078A2 (fr)
ZA (1) ZA201402230B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3249430A1 (fr) * 2015-03-26 2017-11-29 CGG Services SA Dispositif de protection de câble à montage rapide utilisable dans des sondages marins

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1973502A (en) * 1934-03-12 1934-09-11 Anton J Olson Cable clamp
GB788076A (en) * 1955-05-07 1957-12-23 Metalastik Ltd Improvements in or relating to cable spacers for multi-conductor electrical overheadtransmission lines
GB944522A (en) * 1961-06-01 1963-12-18 Metalstik Ltd Improvements in or relating to cable spacers for multi-conductor electrical overhead transmission lines
GB1482083A (en) * 1973-10-27 1977-08-03 Brush Switchgear Cable spacer for overhead power transmission lines
HU189686B (en) * 1983-05-18 1986-07-28 Deldunantuli Aramszolgaltato Vallalat,Hu Position fixing device for ensuring position of lines with respect to each other of transmission lines of at most 1 kilovolt
US5801336A (en) * 1997-09-02 1998-09-01 Blanding; Douglas Aerial conductor spacer
EP2362511B1 (fr) * 2010-02-26 2020-10-07 Tyco Electronics SIMEL Espaceur pour lignes à moyenne ou haute tension

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3249430A1 (fr) * 2015-03-26 2017-11-29 CGG Services SA Dispositif de protection de câble à montage rapide utilisable dans des sondages marins
US9889907B2 (en) 2015-03-26 2018-02-13 Cgg Services Sas Quick mount cable-protecting device usable in marine surveys

Also Published As

Publication number Publication date
ZA201402230B (en) 2015-04-29
WO2013035078A3 (fr) 2013-08-08

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