CA2429985A1 - Process for the production of a multipolar cable, and multipolar cable produced therefrom - Google Patents
Process for the production of a multipolar cable, and multipolar cable produced therefrom Download PDFInfo
- Publication number
- CA2429985A1 CA2429985A1 CA002429985A CA2429985A CA2429985A1 CA 2429985 A1 CA2429985 A1 CA 2429985A1 CA 002429985 A CA002429985 A CA 002429985A CA 2429985 A CA2429985 A CA 2429985A CA 2429985 A1 CA2429985 A1 CA 2429985A1
- Authority
- CA
- Canada
- Prior art keywords
- layer
- polymeric material
- multipolar cable
- comprised
- cores
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/141—Insulating conductors or cables by extrusion of two or more insulating layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/142—Insulating conductors or cables by extrusion of cellular material
-
- 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
- H01B7/1895—Internal space filling-up means
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Insulated Conductors (AREA)
- Communication Cables (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The present invention relates to a manufacturing process of a multipolar cable comprising at least one pair of cores, each core comprising at least one conductive element and at least one layer of electrical insulation in a position which is radially external to said at least one conductive element.
This process comprises the steps of: a) assembling said at least one pair of cores so as to form an assembled element having a plurality of interstitial zones between said cores, and b) depositing by co-extrusion an expandable polymeric material in a position which is radially external to said cores so as to fill said interstitial zone and to form a filling layer of substantially zone and to form a filling layer of substantially circular transverse cross section, and at least one containment layer of polymeric, and at least one containment layer of polymeric material in a position radially external to said filling layer. The present invention also relates to a multipolar cable obtained from said process.
This process comprises the steps of: a) assembling said at least one pair of cores so as to form an assembled element having a plurality of interstitial zones between said cores, and b) depositing by co-extrusion an expandable polymeric material in a position which is radially external to said cores so as to fill said interstitial zone and to form a filling layer of substantially zone and to form a filling layer of substantially circular transverse cross section, and at least one containment layer of polymeric, and at least one containment layer of polymeric material in a position radially external to said filling layer. The present invention also relates to a multipolar cable obtained from said process.
Claims (17)
1. Manufacturing process of a multipolar cable (10) comprising at least one pair of cores, each core ,comprising at least one conductive element (1) and at least one layer of electrical insulation (2) in a position radially external to said at least one conductive element (1), said process comprising the steps of:
a) assembling at least one pair of cores to form an assembled element (20) provided with a plurality of interstitial zones (3) between said cores, and b) depositing by co-extrusion:
.cndot. an expandable polymeric material in a position radially external to said cores so as to fill said interstitial zones (3) and form a filling layer (4) of substantially circular transverse cross section, and .cndot. at least one containment layer (5) of polymeric material in a position radially external to said filling layer (4).
a) assembling at least one pair of cores to form an assembled element (20) provided with a plurality of interstitial zones (3) between said cores, and b) depositing by co-extrusion:
.cndot. an expandable polymeric material in a position radially external to said cores so as to fill said interstitial zones (3) and form a filling layer (4) of substantially circular transverse cross section, and .cndot. at least one containment layer (5) of polymeric material in a position radially external to said filling layer (4).
2. Process according to Claim 1, characterized in. that it also comprises the step of depositing by co-extrusion at least one further layer (6) of expanded polymeric material in a position radially external to said containment layer (5).
3. Process according to Claim 1 or 2, characterized in that said expanded polymeric material expands during said deposition step.
4. Process according to Claim 1, characterized in that said assembling step comprises the step of helicoidally winding together said at least one pair of cores in accordance with a predetermined pitch.
5. Multipolar cable (10) comprising at least one pair of cores, each core comprising at least one conductive element (1) and at least one layer of-electrical insulation (2) in a position radially external to said at least one conductive element (1), said cores being twisted together so as to form an assembled element (20) provided with a plurality of interstitial zones (3) between said cores, said interstitial zones (3) being filled with an expanded.
polymeric material to form a filling layer (4), said expanded polymeric material being co-extruded with at least one containment layer (5) of polymeric material located in a position radially external to said filling layer (4).
polymeric material to form a filling layer (4), said expanded polymeric material being co-extruded with at least one containment layer (5) of polymeric material located in a position radially external to said filling layer (4).
6. Multipolar cable (10) according to Claim 5, characterized in that it also comprises at least one further layer (6) of expanded polymeric material in a position radially external to said containment layer (5).
7. Multipolar cable (10) according to Claim 5 or 6, characterized in that said expandable polymeric material of said filling layer (4), said polymeric material of said containment layer (5) and said expandable polymeric material of said further layer (6) located in a position radially external to said containment layer (5) are selected separately from, each other from polyolefin polymers or copolymers based on ethylene and/or propylene.
8. Multipolar cable (10) according to Claim 7, characterized in that said expandable polymeric material of said filling layer (4), said polymeric material of said containment layer (5), and said expandable polymeric material of said further layer (6) located in a position radially external to said containment layer (5) are selected, separately from each other, from:
a) ethylene copolymers with an ethylenically unsaturated ester in which the quantity of unsaturated ester is comprised between 5% and 80%
by weight, b) elastomeric copolymers of ethylene with at least one C3-C12 .alpha.-olefin, and optionally a dime, having the following composition: 35%-90% as moles of ethylene, 10%-65% as moles of .alpha.-olefin, 0%-10% as moles of dime, c) copolymers of ethylene with at least one C4-C12 .alpha.-olefin, and optionally a dime, having a density between 0.86 and 0.90 g/cm3, d) polypropylene modified with ethylene/C3-C12 .alpha.-olefin copolymers where the ratio by weight between polypropylene and the ethylene/C3-C12 .alpha.-olefin copolymer is comprised between 90/10 and 30/70.
a) ethylene copolymers with an ethylenically unsaturated ester in which the quantity of unsaturated ester is comprised between 5% and 80%
by weight, b) elastomeric copolymers of ethylene with at least one C3-C12 .alpha.-olefin, and optionally a dime, having the following composition: 35%-90% as moles of ethylene, 10%-65% as moles of .alpha.-olefin, 0%-10% as moles of dime, c) copolymers of ethylene with at least one C4-C12 .alpha.-olefin, and optionally a dime, having a density between 0.86 and 0.90 g/cm3, d) polypropylene modified with ethylene/C3-C12 .alpha.-olefin copolymers where the ratio by weight between polypropylene and the ethylene/C3-C12 .alpha.-olefin copolymer is comprised between 90/10 and 30/70.
9. Multipolar cable (10) according to any one of Claims to 8, characterized in that the expansion degree of said filling layer (4) is comprised between 5%
and 500%.
and 500%.
10.Multipolar cable (10) according to Claim 9, characterized in that said expansion degree is comprised between 10% and 200%.
11.Multipolar cable (10) according to Claim 10, characterized in that said expansion degree is comprised between 20% and 150%.
12.Multipolar cable (10) according to Claim 6, characterized in that the expansion degree of said further layer (6) is comprised between. 5% and 500%.
13. Multipolar cable (10) according to Claim 12, characterized in that said expansion degree is comprised between 10% and 200%
14. Multipolar cable (10) according to Claim 13, characterized in that said expansion degree is comprised between 20% and 150%.
15. Multipolar cable (10) according to any one of Claims 5 to 14, characterized in that the thickness of said containment layer (5) is comprised between 0.1 and 1.5 mm.
16. Multipolar cable (10) according to Claim 15, characterized in that said thickness is comprised between 0.2 and 1.0 mm.
17. Multipolar cable (10) according to Claim 16, characterized in that said thickness is comprised between 0.5 and 0.7 mm.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00126132.0 | 2000-11-30 | ||
| EP00126132 | 2000-11-30 | ||
| US25187000P | 2000-12-08 | 2000-12-08 | |
| PCT/EP2001/013579 WO2002045100A1 (en) | 2000-11-30 | 2001-11-22 | Process for the production of a multipolar cable, and multipolar cable produced therefrom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2429985A1 true CA2429985A1 (en) | 2002-06-06 |
| CA2429985C CA2429985C (en) | 2012-02-21 |
Family
ID=27798770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2429985A Expired - Lifetime CA2429985C (en) | 2000-11-30 | 2001-11-22 | Process for the production of a multipolar cable, and multipolar cable produced therefrom |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1346376B1 (en) |
| AT (1) | ATE362637T1 (en) |
| AU (2) | AU2002227940B2 (en) |
| BR (1) | BR0115739B1 (en) |
| CA (1) | CA2429985C (en) |
| DE (1) | DE60128485T2 (en) |
| ES (1) | ES2287177T3 (en) |
| PT (1) | PT1346376E (en) |
| WO (1) | WO2002045100A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7166802B2 (en) | 2004-12-27 | 2007-01-23 | Prysmian Cavi E Sistemi Energia S.R.L. | Electrical power cable having expanded polymeric layers |
| HUE028809T2 (en) | 2005-07-15 | 2017-01-30 | Prysmian Spa | Cable having expanded, strippable jacket |
| CN100546797C (en) * | 2006-09-06 | 2009-10-07 | 中国科学技术大学 | The production method of ultraviolet light cross-linking polyolefin insulation electric wire and cable and ultraviolet light irradiation cross-linking apparatus thereof |
| US8886334B2 (en) | 2008-10-07 | 2014-11-11 | Mc10, Inc. | Systems, methods, and devices using stretchable or flexible electronics for medical applications |
| CN113077930A (en) * | 2021-04-13 | 2021-07-06 | 宁波容合电线有限公司 | Thermal expansion yarn filling cable and processing technology thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1515709A1 (en) * | 1962-10-19 | 1969-06-12 | Felten & Guilleaume Carlswerk | Cold-resistant electrical cable |
| DE8103947U1 (en) * | 1981-02-13 | 1989-11-16 | U. I. Lapp KG, 7000 Stuttgart | Electrical device and machine connection cable with special mechanical resistance and flexibility |
| DE9216118U1 (en) * | 1992-04-28 | 1993-02-25 | Dätwyler AG Kabel und Systeme, Altdorf | Cable |
| BR9809119B1 (en) * | 1997-05-15 | 2011-10-18 | cable, and processes for imparting impact resistance to an inner structure of a cable and for assessing the impact resistance of a cable, and use of an expanded polymer material. | |
| HU223024B1 (en) * | 1997-12-22 | 2004-03-01 | Pirelli Cavi E Sistemi S.P.A. | Electrical cable having a semiconductive water-blocking expanded layer |
-
2001
- 2001-11-22 WO PCT/EP2001/013579 patent/WO2002045100A1/en active IP Right Grant
- 2001-11-22 AU AU2002227940A patent/AU2002227940B2/en not_active Expired
- 2001-11-22 AT AT01989502T patent/ATE362637T1/en not_active IP Right Cessation
- 2001-11-22 DE DE60128485T patent/DE60128485T2/en not_active Expired - Lifetime
- 2001-11-22 BR BRPI0115739-6A patent/BR0115739B1/en not_active IP Right Cessation
- 2001-11-22 PT PT01989502T patent/PT1346376E/en unknown
- 2001-11-22 EP EP01989502A patent/EP1346376B1/en not_active Expired - Lifetime
- 2001-11-22 CA CA2429985A patent/CA2429985C/en not_active Expired - Lifetime
- 2001-11-22 AU AU2794002A patent/AU2794002A/en active Pending
- 2001-11-22 ES ES01989502T patent/ES2287177T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AU2794002A (en) | 2002-06-11 |
| WO2002045100A1 (en) | 2002-06-06 |
| AU2002227940B2 (en) | 2005-09-29 |
| EP1346376A1 (en) | 2003-09-24 |
| ES2287177T3 (en) | 2007-12-16 |
| ATE362637T1 (en) | 2007-06-15 |
| BR0115739B1 (en) | 2011-06-14 |
| CA2429985C (en) | 2012-02-21 |
| PT1346376E (en) | 2007-08-27 |
| BR0115739A (en) | 2003-09-16 |
| DE60128485T2 (en) | 2008-01-10 |
| DE60128485D1 (en) | 2007-06-28 |
| EP1346376B1 (en) | 2007-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20211122 |