EP1308968A1 - Câble d'énergie ou de communication adapté à être enterré - Google Patents
Câble d'énergie ou de communication adapté à être enterré Download PDFInfo
- Publication number
- EP1308968A1 EP1308968A1 EP02292568A EP02292568A EP1308968A1 EP 1308968 A1 EP1308968 A1 EP 1308968A1 EP 02292568 A EP02292568 A EP 02292568A EP 02292568 A EP02292568 A EP 02292568A EP 1308968 A1 EP1308968 A1 EP 1308968A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- outer layer
- layer
- cable according
- external
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
- H01B7/1885—Inter-layer adherence preventing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/184—Sheaths comprising grooves, ribs or other projections
Definitions
- the present invention relates to a cable withstand high mechanical particularly suitable for being buried.
- the invention applies not only to an energy cable whatever the supply voltage, but also to a communication cable, including a fiber cable optics.
- the sheaths of cable protection are generally made of polyethylene or polyvinyl chloride and to get satisfactory mechanical strength, it is necessary to foresee a significant increase in the thickness of the cable protection sheath so that the unwinding of cable and the use of cable preparation tools become difficult.
- the cable protection sheath with an external layer produced made of a material having a higher elasticity that the protective sheath and having relative to the protective sheath less grip than strength tearing of the outer layer.
- the outer layer achieves by its elasticity cushioning of constraints and thus indirectly provides reduced risk of damage to the cable so the use of a textured material thin in the trench is no longer necessary.
- materials with high elasticity can easily be cut by the usual cable preparation tools and the limited adhesion of the outer layer compared with the protective sheath allows successively to be carried out cutting the outer layer and then protective sheath using preparation tools usual.
- the outer layer has an outer contour having parts projecting.
- the protruding parts are requested first and depreciation that they realize minimizes the constraint to which the central part of the cable is subjected to.
- the protruding parts constitute pads wear when rubbing on the ground during unwinding of the cable and its laying in the trench, which verifies that the abrasion did not cause a wear of the outer layer beyond an acceptable amount.
- the parts of the outer layer of lesser thickness between the projecting parts allow a better thermal evacuation than that achieved by a layer of uniform thickness.
- the outer layer has an outline external in slots whose protruding parts are longitudinal or arranged in a helix around the cable. This provides multidirectional protection of the cable while promoting flexion of the cable during unwinding.
- the outer layer has reinforcing fibers which preferably extend in a direction substantially longitudinal of the cable.
- the electrical cable illustrated comprises in a manner known per se a conductor 1 covered with a conductive layer 2, itself covered an insulating layer 3.
- the insulating layer 3 is at turn covered with a conductive layer 4 on which is disposed a metal shield 5 covered a protective sheath 6, the latter generally being made of polyethylene or polyvinyl chloride.
- the cable further comprises a outer layer 7 which covers the protective sheath 6 and is made of a material with elasticity higher than the protective sheath 6 and whose adhesion to the protective sheath 6 is less than the resistance tearing of the outer layer.
- Layer external 7 is for example made of crosslinked elastomer, or in elastomeric thermoplastic material, that is to say a multiphase polymer comprising a thermoplastic phase and a mixed polymer phase, the polymer obtained can be either in mass form or under cell form, and not naturally adhering to protective shealth.
- the outer layer 7 has a niche outline, the projecting parts 8 extend in a helix around the cable.
- the outer layer further includes reinforcing fibers 9, for example aramid fibers, which extend between the parts protruding 8 and thus provide a reinforcement of the layer external 7 in the parts of lesser thickness thereof.
- the fibers of reinforcement 9 extend like the protruding parts 8, in propeller in a substantially longitudinal direction of the cable.
- Figure 2 illustrates a second embodiment in which the cable has the same structure base covered with an outer layer 7 produced in a material with higher elasticity than protective sheath 6.
- the outer layer 7 does not have reinforcing fibers 9 and has a polygonal outer contour whose edges 10 projecting extend in the longitudinal direction of the cable.
- the outer layer according to the invention can be applied to a cable without metal shield 5 or conductive layers and can have any external contour, including a smooth circular outer contour corresponding to a layer external 7 of constant thickness.
- a cable can be made with several metallic conductors or with optical fibers extending in a protective sheath itself covered an elastic outer layer.
- the thickness of the outer layer 7 is adapted to the size of the cable, the efforts to which it risks to be subjected during its installation and to the nature of the soil in which the cable is to be laid.
- an outer layer having a thickness between 1 mm and 5 mm gave satisfactory results when tests simulating handling, installation and use of the cable.
- reinforcing fibers can be provided extending lengthwise, or segments of reinforcing fibers distributed randomly in elastic layer 7, the fibers of reinforcement having as main function to distribute a radial impact on the area surrounding the impact point.
- the protruding parts are shown with widths identical, parts of different widths can be provided, a wider part which can in particular be made to facilitate marking of the cable.
Landscapes
- Insulated Conductors (AREA)
- Communication Cables (AREA)
- Organic Insulating Materials (AREA)
- Insulating Bodies (AREA)
Abstract
Description
- la figure 1 est une vue en perspective d'un premier mode de réalisation de l'invention,
- la figure 2 est une vue en perspective d'un deuxième mode de réalisation de l'invention.
Claims (10)
- Câble comportant au moins un conducteur (1) s'étendant dans une gaine de protection (6), caractérisé en ce qu'il comporte une couche externe (7) qui recouvre la gaine de protection (6) et est réalisée en une matière présentant une élasticité plus élevée que la gaine de protection (6) et ayant par rapport à la gaine de protection (6) une adhérence inférieure à la résistance au déchirement de la couche externe (7).
- Câble selon la revendication 1, caractérisé en ce que la couche externe (7) est réalisée en une matière n'adhérant pas naturellement à la gaine de protection (6).
- Câble selon la revendication 1, caractérisé en ce que la couche externe (7) est réalisée en élastomère.
- Câble selon la revendication 1, caractérisé en ce que la couche externe (7) a un contour externe présentant des parties en saillie (8, 10).
- Câble selon la revendication 4, caractérisé en ce que la couche externe (7) a un contour externe en créneaux.
- Câble selon la revendication 4, caractérisé en ce que la couche externe (7) a un contour externe polygonal.
- Câble selon l'une quelconque des revendications 4 à 6, caractérisé en ce que les parties en saillie (8) s'étendent selon une hélice autour du câble.
- Câble selon la revendication 1, caractérisé en ce que la couche externe comporte des fibres de renfort (9).
- Câble selon la revendication 8, caractérisé en ce que les fibres de renfort (9) s'étendent selon une direction sensiblement longitudinale du câble.
- Câble selon la revendication 4 et la revendication 8, caractérisé en ce que les fibres de renfort (9) s'étendent entre les parties en saillie (8).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0113788A FR2831703B1 (fr) | 2001-10-25 | 2001-10-25 | Cable d'energie ou de communication adapte a etre enterre |
FR0113788 | 2001-10-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1308968A1 true EP1308968A1 (fr) | 2003-05-07 |
EP1308968B1 EP1308968B1 (fr) | 2009-01-14 |
Family
ID=8868700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02292568A Expired - Lifetime EP1308968B1 (fr) | 2001-10-25 | 2002-10-17 | Câble d'énergie ou de communication adapté à être enterré |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1308968B1 (fr) |
AT (1) | ATE421155T1 (fr) |
DE (1) | DE60230852D1 (fr) |
DK (1) | DK1308968T3 (fr) |
ES (1) | ES2319618T3 (fr) |
FR (1) | FR2831703B1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007120646A2 (fr) * | 2006-04-11 | 2007-10-25 | General Dynamics Advanced Information Systems, Inc. | Chemise rainurée pour câble sous-marin et procédé de fabrication |
CN111462948A (zh) * | 2020-04-20 | 2020-07-28 | 夏纪成 | 地埋式抗压电缆 |
CN112071483A (zh) * | 2020-08-26 | 2020-12-11 | 远东电缆有限公司 | 一种智慧能源用抗压电缆及其制备方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2996046B1 (fr) * | 2013-02-08 | 2014-09-05 | Silec Cable | Cable tous terrains a denudabilite facilitee |
CN105489293A (zh) * | 2016-03-07 | 2016-04-13 | 广西资优电气设备有限公司 | 电力线缆 |
CH713982A2 (de) | 2017-07-14 | 2019-01-15 | Studer Aeronautical Ag | Elektrokabel für die Stromversorgung von Flugzeugen, Fahrzeugen, Schiffen oder anderen Einrichtungen. |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB478517A (en) * | 1936-07-25 | 1938-01-20 | British Insulated Cables Ltd | Improvements in electric cables |
US3793476A (en) * | 1973-02-26 | 1974-02-19 | Gen Electric | Insulated conductor with a strippable layer |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0511611Y2 (fr) * | 1988-07-26 | 1993-03-23 | ||
GB9915141D0 (en) * | 1999-06-30 | 1999-09-01 | Read Well Services Limited | Cable |
-
2001
- 2001-10-25 FR FR0113788A patent/FR2831703B1/fr not_active Expired - Fee Related
-
2002
- 2002-10-17 ES ES02292568T patent/ES2319618T3/es not_active Expired - Lifetime
- 2002-10-17 EP EP02292568A patent/EP1308968B1/fr not_active Expired - Lifetime
- 2002-10-17 DK DK02292568T patent/DK1308968T3/da active
- 2002-10-17 DE DE60230852T patent/DE60230852D1/de not_active Expired - Lifetime
- 2002-10-17 AT AT02292568T patent/ATE421155T1/de not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB478517A (en) * | 1936-07-25 | 1938-01-20 | British Insulated Cables Ltd | Improvements in electric cables |
US3793476A (en) * | 1973-02-26 | 1974-02-19 | Gen Electric | Insulated conductor with a strippable layer |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007120646A2 (fr) * | 2006-04-11 | 2007-10-25 | General Dynamics Advanced Information Systems, Inc. | Chemise rainurée pour câble sous-marin et procédé de fabrication |
WO2007120646A3 (fr) * | 2006-04-11 | 2008-02-14 | Gen Dynamics Advanced Inf Sys | Chemise rainurée pour câble sous-marin et procédé de fabrication |
CN111462948A (zh) * | 2020-04-20 | 2020-07-28 | 夏纪成 | 地埋式抗压电缆 |
CN112071483A (zh) * | 2020-08-26 | 2020-12-11 | 远东电缆有限公司 | 一种智慧能源用抗压电缆及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
ES2319618T3 (es) | 2009-05-11 |
ATE421155T1 (de) | 2009-01-15 |
FR2831703B1 (fr) | 2003-12-26 |
DE60230852D1 (de) | 2009-03-05 |
FR2831703A1 (fr) | 2003-05-02 |
DK1308968T3 (da) | 2009-05-04 |
EP1308968B1 (fr) | 2009-01-14 |
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