FR2487107A1 - METHOD FOR IMPROVING THE LONGITUDINAL SEALING OF TELECOMMUNICATION CABLES - Google Patents

METHOD FOR IMPROVING THE LONGITUDINAL SEALING OF TELECOMMUNICATION CABLES Download PDF

Info

Publication number
FR2487107A1
FR2487107A1 FR8016299A FR8016299A FR2487107A1 FR 2487107 A1 FR2487107 A1 FR 2487107A1 FR 8016299 A FR8016299 A FR 8016299A FR 8016299 A FR8016299 A FR 8016299A FR 2487107 A1 FR2487107 A1 FR 2487107A1
Authority
FR
France
Prior art keywords
improving
belt
swelling
telecommunications cable
metal screen
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Withdrawn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
FR8016299A
Other languages
French (fr)
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.)
Treficable Pirelli SA
Original Assignee
Treficable Pirelli SA
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 Treficable Pirelli SA filed Critical Treficable Pirelli SA
Priority to FR8016299A priority Critical patent/FR2487107A1/en
Priority to IT22434/81A priority patent/IT1136683B/en
Priority to AR285873A priority patent/AR226901A1/en
Priority to ES503522A priority patent/ES8205075A1/en
Priority to AU72735/81A priority patent/AU7273581A/en
Priority to NO812490A priority patent/NO812490L/en
Priority to SE8104460A priority patent/SE8104460L/en
Priority to GB8122308A priority patent/GB2080998A/en
Priority to DE19813128779 priority patent/DE3128779A1/en
Priority to BR8104681A priority patent/BR8104681A/en
Publication of FR2487107A1 publication Critical patent/FR2487107A1/en
Priority to PT74381A priority patent/PT74381B/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • 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
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
    • H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid

Abstract

PROCEDE D'AMELIORATION DE L'ETANCHEITE LONGITUDINALE D'UN CABLE DE TELECOMMUNICATIONS, COMPORTANT, DU COEUR A LA PERIPHERIE, AU MOINS UN FAISCEAU DE CABLES ENROBE D'UNE MATIERE DE REMPLISSAGE HYDROPHOBE, UNE CEINTURE, UN ECRAN METALLIQUE ET UNE GAINE EXTERNE, DANS LEQUEL ON INTERPOSE ENTRE LA CEINTURE ET L'ECRAN METALLIQUE UNE POUDRE GONFLANT A L'EAU DISPERSEE DANS UN AGENT VISQUEUX N'ALTERANT PAS SA CAPACITE DE GONFLEMENT.METHOD FOR IMPROVING THE LONGITUDINAL SEALING OF A TELECOMMUNICATIONS CABLE, COMPRISING, FROM THE HEART TO THE PERIPHERY, AT LEAST ONE WIRE HARNESS COATED WITH HYDROPHOBIC FILLING MATERIAL, A BELT, A METAL SCREEN AND AN EXTERNAL SHEATH, IN WHICH ONE INTERPOSES BETWEEN THE BELT AND THE METAL SCREEN A POWDER INFLATING WITH WATER DISPERSED IN A VISCOUS AGENT NOT DIFFERENT IN ITS CAPACITY OF SWELLING.

Description

PROCEDE D'AMELIORATION DE L'ETANCHEITE LONGITUDINALEMETHOD FOR IMPROVING LONGITUDINAL SEALING

DE CABLES DE TELECOMMUNICATIONSTELECOMMUNICATIONS CABLES

La présente invention concerne un procédé d'amélioration de l'étanchéité  The present invention relates to a method of improving sealing

longitudinale de câbles de télécommunications.  longitudinal of telecommunications cables.

Les utilisateurs de câbles électriques, et notamment des câbles de télé-  Users of electrical cables, including TV cables

communications destinés à être enterrés, exigent de ces câbles une étan-  communications intended to be buried, require these cables to be

chéité dans le sens longitudinal, de sorte que si de l'eau parvient à pé-  lengthwise, so that if water comes out

nétrer par une blessure de la gaine de protection, lors de la pose ou  damage by a protective sheath injury during installation or

lors de travaux effectués dans la zone o le câble est enterré, la pro-  during work carried out in the area where the cable is buried, the pro-

pagation de l'humidité de part et d'autre de ladite blessure soit limi-  pagination of moisture on either side of said wound is limited

tée à une zone aussi réduite que possible.  ted to an area as small as possible.

Il est connu de réaliser l'étanchéité longitudinale des câbles par uti-  It is known to achieve longitudinal sealing of cables by using

lisation de mixtures hydrophobes, de consistance poisseuse comportant,  use of hydrophobic mixtures with a sticky consistency including,

entre autres, de l'huile de lin, des polyisobutylènes, des charges miné-  among others, linseed oil, polyisobutylenes, mineral fillers

rales diverses, ou encore des pâtes, enduits ou mastics, également hydro-  various rales, or even pastes, coatings or mastics, also hydro-

phobes, différents types d'huiles naturelles ou synthétiques, ou des ge-  phobes, different types of natural or synthetic oils, or ge-

lées, telles que de la "gelée de pétrole", disposées à l'intérieur du  lines, such as "petroleum jelly", placed inside the

faisceau de conducteurs.bundle of conductors.

La même matière peut être utilisée entre la ceinture qui entoure le fais-  The same material can be used between the belt that surrounds the

ceau de conducteurs, et l'écran métallique, mais, au cours du refroidis-  conductors, and the metallic screen, but, during the cooling

sement du câble, après pose de cette matière, lors de l'extrusion, le re-  cable, after laying this material, during extrusion, re-

trait et l'effet des irrégularités de diamètre ne permettent pas toujours  line and the effect of diameter irregularities do not always allow

d'obtenir une étanchéité suffisante.  to obtain a sufficient seal.

L'objet de l'invention est un procédé d'amélioration de l'étanchéité lon-  The object of the invention is a method of improving the tightness during

gitudinale consistant à remplir l'espace situé entre la ceinture et l'é-  gitudinal consisting in filling the space between the belt and the

cran avec une matière de remplissage susceptible de gonfler en présence d'eau. De préférence, cette matière est déposée sur la ceinture, et elle  notch with a filling material capable of swelling in the presence of water. Preferably, this material is deposited on the belt, and it

est constituée par une poudre gonflant à l'eau, telle que de la CMC (carbo-  consists of a powder swelling with water, such as CMC (carbo-

xyméthulcellulose), ou des dérivés voisins tels que HEC (hydroxyéthylcellu-  xymethulcellulose), or related derivatives such as HEC (hydroxyethylcellu-

lose), HECMC (hydroxyéthylcarboxyméthylcellulose), HPMC (hydroxypropylmé-  lose), HECMC (hydroxyethylcarboxymethylcellulose), HPMC (hydroxypropylmé-

thylcellulose), MC (méthylcellulose), EC (éthylcellulose) EHEC (éthylhy-  thylcellulose), MC (methylcellulose), EC (ethylcellulose) EHEC (ethylhy-

droxyéthylcellulose), HPS (hydroxypropylcellulose) utilisés seuls ou en mélange (cette énumération n'étant pas limitative), la poudre étant -2-  droxyethylcellulose), HPS (hydroxypropylcellulose) used alone or as a mixture (this list is not exhaustive), the powder being -2-

véhiculée par un agent visqueux ne supprimant pas sa capacité de gon-  carried by a viscous agent which does not suppress its capacity for

flement en présence d'eau.bleeding in the presence of water.

La figure I représente, en coupe, un câble téléphonique. Les proportions relatives des différents éléments n'ont pas été respectées, de façon à  Figure I shows, in section, a telephone cable. The relative proportions of the different elements were not respected, so as to

rendre le dessin plus lisible.make the drawing more readable.

Du coeur à la périphérie, on trouve: les faisceaux de câbles (1,2,3,4)  From the heart to the periphery, we find: the bundles of cables (1,2,3,4)

groupant un certain nombre de "paires téléphoniques", enrobés d'une ma-  grouping a certain number of "telephone pairs", coated with a ma-

tière de remplissage (5) de type classique, puis une ceinture (6) cons-  conventional filling filler (5), then a belt (6)

tituée de papier, de complexe à base de papier, ou d'un ruban de non-  lined with paper, paper-based complex, or a non-ribbon

tissé, un écran d'aluminium (7) replié autour du câble avec un recouvre-  woven, an aluminum screen (7) folded around the cable with a cover

ment (8), et une gaine externe (9) à laquelle l'écran (7) est contrecollé.  ment (8), and an outer sheath (9) to which the screen (7) is laminated.

La poudre gonflant à l'eau forme une couche intermédiaire (10), entre  The water-swelling powder forms an intermediate layer (10), between

l'écran (7) et la ceinture (6) sur laquelle elle est, de préférence, dé-  the screen (7) and the belt (6) on which it is preferably removed

posée avant ou au moment de la confection du câble.  installed before or at the time of making the cable.

Parmi les différents agents visqueux dans lesquels on peut disperser le  Among the various viscous agents in which the

dérivé cellulosique, sans lui faire perdre sa capacité de gonfler en pré-  cellulose derivative, without making it lose its ability to swell in pre-

sence de l'eau, on peut citer, en particulier, le polybutène, la glycéri-  sence of water, there may be mentioned, in particular, polybutene, glycerol-

ne, les cires hydrosolubles.ne, water-soluble waxes.

De cette façon, même s'il se produit des retraits lors du refroidisse-  In this way, even if shrinkage occurs during cooling

ment du câble sortant de l'extrudeuse, toute intrusion ultérieure d'eau dans la zone (10) provoquera un gonflement du produit d'étanchéité et  ment of the cable leaving the extruder, any subsequent intrusion of water into the area (10) will cause swelling of the sealant and

s'opposera à la progression de l'eau le long du câble.  will oppose the progression of water along the cable.

2487 10i - 3 -2487 10i - 3 -

Claims (3)

REVENDICATIONS 1/ Procédé d'amélioration de l'étanchéité longitudinale d'un câble de télécommunications, comportant, du coeur à la périphérie, au moins un faisceau de câbles enrobé d'une matière de remplissage hydrophobe, une ceinture, un écran métallique et une gaine externe, caractérisé en ce que l'on interpose entre la ceinture et l'écran métallique une poudre gonflant à l'eau dispersée dans un agent visqueux n'altérant pas sa  1 / Method for improving the longitudinal tightness of a telecommunications cable, comprising, from the core to the periphery, at least one bundle of cables coated with a hydrophobic filling material, a belt, a metal screen and a sheath external, characterized in that there is interposed between the belt and the metal screen a powder swelling with water dispersed in a viscous agent which does not alter its capacité de gonflement.swelling capacity. 2/ Procédé d'amélioration de l'étanchéité longitudinale d'un câble de télécommunications selon revendication 1, caractérisé en ce que la  2 / A method of improving the longitudinal tightness of a telecommunications cable according to claim 1, characterized in that the poudre gonflant à l'eau comporte au moins un dérivé cellulosique choi-  water-swelling powder contains at least one chosen cellulose derivative si parmi: CMC (carboxyméthylcellulose), HEC (hydroxyéthylcellulose),  if among: CMC (carboxymethylcellulose), HEC (hydroxyethylcellulose), HECMC (hydroxyéthylcarboxyméthylcellulose), HPMC (hydroxypropylméthyl-  HECMC (hydroxyethylcarboxymethylcellulose), HPMC (hydroxypropylmethyl- cellulose), MC (méthylcellulose), EC (éthylcellulose), EHEC (éthylhy-  cellulose), MC (methylcellulose), EC (ethylcellulose), EHEC (ethylhy- droxyéthylcellulose), HPC (hydroxypropylcellulose).  droxyethylcellulose), HPC (hydroxypropylcellulose). 3/ Procédé d'amélioration de l'étanchéité longitudinale d'un caâble de télécommunications selon revendication 1, caractérisé en ce que l'agent  3 / A method of improving the longitudinal tightness of a telecommunications cable according to claim 1, characterized in that the agent visqueux est choisi parmi le polybutène, la glycérine, les cires hydro-  viscous is chosen from polybutene, glycerin, hydro- solubles.soluble.
FR8016299A 1980-07-21 1980-07-21 METHOD FOR IMPROVING THE LONGITUDINAL SEALING OF TELECOMMUNICATION CABLES Withdrawn FR2487107A1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
FR8016299A FR2487107A1 (en) 1980-07-21 1980-07-21 METHOD FOR IMPROVING THE LONGITUDINAL SEALING OF TELECOMMUNICATION CABLES
IT22434/81A IT1136683B (en) 1980-07-21 1981-06-19 PROCEDURE FOR THE IMPROVEMENT OF THE LONGITUDINAL WATERPROOFING OF TELECOMMUNICATIONS CABLES
AR285873A AR226901A1 (en) 1980-07-21 1981-06-26 LONGITUDINALLY WATERPROOF TELECOMMUNICATION CABLE
ES503522A ES8205075A1 (en) 1980-07-21 1981-06-30 Telecommunications Cable
AU72735/81A AU7273581A (en) 1980-07-21 1981-07-10 Telecommunications cable process
NO812490A NO812490L (en) 1980-07-21 1981-07-20 PROCEDURE FOR IMPROVING DENSITY IN LONG-TOWED TELECOMMUNICATION CABLES
SE8104460A SE8104460L (en) 1980-07-21 1981-07-20 PROCEDURE FOR IMPROVING THE LONGITUDINAL DENSITY OF TELECOMMUNICATION CABLES
GB8122308A GB2080998A (en) 1980-07-21 1981-07-20 Telecommunications Cable
DE19813128779 DE3128779A1 (en) 1980-07-21 1981-07-21 CABLES WITH IMPROVED LENGTH TIGHTNESS FOR MESSAGE TRANSMISSION
BR8104681A BR8104681A (en) 1980-07-21 1981-07-21 PROCESS FOR IMPROVING THE LONGITUDINAL CABLE SEAL FOR TELECOMMUNICATIONS
PT74381A PT74381B (en) 1980-07-21 1982-02-03 METHOD FOR ENHANCING LONGITUDINAL SEALING OF TELECOMMUNICATION CABLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8016299A FR2487107A1 (en) 1980-07-21 1980-07-21 METHOD FOR IMPROVING THE LONGITUDINAL SEALING OF TELECOMMUNICATION CABLES

Publications (1)

Publication Number Publication Date
FR2487107A1 true FR2487107A1 (en) 1982-01-22

Family

ID=9244468

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8016299A Withdrawn FR2487107A1 (en) 1980-07-21 1980-07-21 METHOD FOR IMPROVING THE LONGITUDINAL SEALING OF TELECOMMUNICATION CABLES

Country Status (11)

Country Link
AR (1) AR226901A1 (en)
AU (1) AU7273581A (en)
BR (1) BR8104681A (en)
DE (1) DE3128779A1 (en)
ES (1) ES8205075A1 (en)
FR (1) FR2487107A1 (en)
GB (1) GB2080998A (en)
IT (1) IT1136683B (en)
NO (1) NO812490L (en)
PT (1) PT74381B (en)
SE (1) SE8104460L (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566955A1 (en) * 1984-06-29 1986-01-03 Cables De Lyon Geoffroy Delore Composite sealing material for an electrical cable and process for its manufacture
GB8422458D0 (en) * 1984-09-05 1984-10-10 Telephone Cables Ltd Cables
GB8425378D0 (en) * 1984-10-08 1984-11-14 Ass Elect Ind Electrical cables
FR2575110B1 (en) * 1984-12-21 1987-10-16 Intissel Sa WATERPROOFING COMPOSITE MATERIAL, ITS PREPARATION AND COMPOSITION FOR USE THEREOF, AS WELL AS ITS USES
US5256705A (en) * 1986-03-26 1993-10-26 Waterguard Industries, Inc. Composition with tackifier for protecting communication wires
US5218011A (en) * 1986-03-26 1993-06-08 Waterguard Industries, Inc. Composition for protecting the contents of an enclosed space from damage by invasive water
US5461195A (en) * 1986-03-26 1995-10-24 Waterguard Industries, Inc. Filled telecommunications cable having temperature stable mutual capacitance
US4963695A (en) * 1986-05-16 1990-10-16 Pirelli Cable Corporation Power cable with metallic shielding tape and water swellable powder
GB8704938D0 (en) * 1987-03-03 1987-04-08 Bp Chem Int Ltd Cables
BR8807482A (en) * 1987-05-01 1990-03-27 Clarence S Freeman COMPOSITION TO PROTECT TELECOMMUNICATIONS WIRES AND COMPOSITION TO PROTECT CABLES THAT CARRY CONTINUED CHAIN AGAINST WATER DAMAGE
US5010209A (en) * 1988-12-20 1991-04-23 Pirelli Cable Corp. Power cable with water swellable agents and elongated metal elements outside cable insulation
NL9001960A (en) * 1989-09-07 1991-04-02 Felten & Guilleaume Energie Removing traces of moisture from cable - by applying electrochemical mixt. of metal powders in or on material which swells up in water, seals cable, and decomposes water
CA2394846C (en) * 1999-12-20 2010-07-20 Pirelli Cavi E Sistemi S.P.A. Electric cable resistant to water penetration
EP1577901B1 (en) * 2004-03-10 2010-06-09 Nexans Multifilament wire

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE795126A (en) * 1972-04-01 1973-05-29 Kerpenwerk G M B H & Co MATERIAL FOR SEALING, IN PARTICULAR ELECTRICAL CABLES, LONGITUDINALLY
FR2266941A1 (en) * 1974-04-06 1975-10-31 Int Standard Electric Corp
EP0013477A1 (en) * 1978-11-22 1980-07-23 South African Inventions Development Corporation Electric cable including a plurality of separately insulated conductors and an adjuvant to be incorporated in the cable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE795126A (en) * 1972-04-01 1973-05-29 Kerpenwerk G M B H & Co MATERIAL FOR SEALING, IN PARTICULAR ELECTRICAL CABLES, LONGITUDINALLY
DE2216139A1 (en) * 1972-04-01 1973-10-04 Kerpenwerk Gmbh Electrical cable seal - consisting of mixture of bentonite and petroleum jelly
FR2266941A1 (en) * 1974-04-06 1975-10-31 Int Standard Electric Corp
EP0013477A1 (en) * 1978-11-22 1980-07-23 South African Inventions Development Corporation Electric cable including a plurality of separately insulated conductors and an adjuvant to be incorporated in the cable

Also Published As

Publication number Publication date
IT1136683B (en) 1986-09-03
GB2080998A (en) 1982-02-10
SE8104460L (en) 1982-01-22
PT74381B (en) 1983-09-27
PT74381A (en) 1982-03-01
NO812490L (en) 1982-01-22
ES503522A0 (en) 1982-06-01
AR226901A1 (en) 1982-08-31
AU7273581A (en) 1982-09-16
BR8104681A (en) 1982-04-06
ES8205075A1 (en) 1982-06-01
DE3128779A1 (en) 1982-04-29
IT8122434A0 (en) 1981-06-19

Similar Documents

Publication Publication Date Title
FR2487107A1 (en) METHOD FOR IMPROVING THE LONGITUDINAL SEALING OF TELECOMMUNICATION CABLES
US4360704A (en) Moisture proof electrical cable
DE1960252B2 (en) REMOTE COMMUNICATION CABLES AND METHOD OF MANUFACTURING THEREOF
EP1548754A3 (en) Finned jackets for lan cables
FR2597255A1 (en) EXTRUDED INSULATING ELECTRICAL CABLE WITH MOUTH-CAPACITOR, MISCELLANEOUS MATERIAL FOR ELECTRIC CABLES CONDUCTORS, AND METHOD OF MANUFACTURING THE SAME
FR2911441A1 (en) PROTECTIVE DEVICE FOR ELECTRIC CABLE WITH INSULATION BASED ON IMPREGNATED PAPER
FR2508227A1 (en) ELECTROMECHANICAL CABLE RESISTANT TO HIGH TEMPERATURES AND PRESSURES AND METHOD OF MANUFACTURING THE SAME
JPS6029778Y2 (en) waterproof electrical cable
DE2007163B2 (en) Longitudinally watertight electrical cable
DE2940193C2 (en) Longitudinally watertight, plastic-insulated medium or high voltage cable
GB2113453A (en) Electric power cable
FR3046288A1 (en) FIRE-RESISTANT INSULATING LAYER FOR CABLE
DE2801542A1 (en) ELECTRIC CABLE
EP0700057B1 (en) Longitudinally and transversely watertight power cable
DE7920687U1 (en) Electric cable with stranded conductor and moisture barrier
US2036414A (en) Method of grounding shielding tape at terminal of insulated conductors
EP0508322B1 (en) Cable junction sleeve
US3930112A (en) Mixed fluid impregnant for oil filled electric cables
PT2259270E (en) Cable element, data transmission cable, method for manufacturing and use of data transmission cable.
RU2686112C2 (en) Communication cable
NO159891B (en) OIL RESISTANT CABLE.
CN206441562U (en) A kind of drag chain composite optical/electrical cable
CN209216632U (en) A kind of novel anti-grinding tooth blocks water crosslinked cable
EP0041407B1 (en) Improvements relating to metal sheathed elastomeric cables
JPH0696624A (en) Water-tight insulated electric wire

Legal Events

Date Code Title Description
RE Withdrawal of published application