GB1432560A - - Google Patents

Info

Publication number
GB1432560A
GB1432560A GB5696472A GB5696472A GB1432560A GB 1432560 A GB1432560 A GB 1432560A GB 5696472 A GB5696472 A GB 5696472A GB 5696472 A GB5696472 A GB 5696472A GB 1432560 A GB1432560 A GB 1432560A
Authority
GB
United Kingdom
Prior art keywords
dielectric
screen
intermediate layer
ethylene
extruded
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.)
Expired
Application number
GB5696472A
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 filed Critical
Priority to GB5696472A priority Critical patent/GB1432560A/en
Priority to ZA739166A priority patent/ZA739166B/en
Priority to ES421319A priority patent/ES421319A1/en
Priority to CA187,743A priority patent/CA990816A/en
Publication of GB1432560A publication Critical patent/GB1432560A/en
Priority to HK655/76*UA priority patent/HK65576A/en
Priority to MY197742A priority patent/MY7700042A/en
Expired 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
    • 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
    • H01B7/187—Sheaths comprising extruded non-metallic layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0015—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion die
    • B29C48/0016—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion die using a plurality of extrusion dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • 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
    • H01B7/02—Disposition of insulation
    • H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1432560 Strippable extruded cable layer BICC Ltd 10 Dec 1973 [11 Dec 1972] 56964/72 Heading B5A [Also in Division H1] In between the extruded dielectric and a conductive or semi-conductive dielectric screen of a cable core is interposed a mechanically weak intermediate layer of rubber or plastics insulating material bonded to both the dielectric and the screen such that, when stripping the screen from the core cover part of its length for jointing purposes, separation later place within the intermediate layer leaving a portion of that layer on the extruded dielectric. The dielectric and screen are of a rubber or plastics material and may be based on such compounds as ethylene-propylene rubber or cross-linked polyethylene. The intermediate layer may be an extrusion of, for example, an ethylene-propylene rubber compound containing a copolymer of ethylene-vinyl acetate and/or a filler. Extrusion process.-A conductor C passes through an extrusion head 1 where a conductor screen of, for example, a semi-conducting ethylene-propylene rubber based compound, and the dielectric, are applied simultaneously. These layers are then cured in treatment chamber 2 and an in-line scanner at 3 locates any voids in the dielectric. The intermediate layer is applied at 4 and the dielectric screen by extruder 5. The treatment chamber 6 cures the dielectric screen and because of diffusion effects also partially cures the intermediate layer. In cases where in-line scanning is not required the first curing step at 2 may be omitted and all layers cured at 6
GB5696472A 1972-12-11 1972-12-11 Expired GB1432560A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB5696472A GB1432560A (en) 1972-12-11 1972-12-11
ZA739166A ZA739166B (en) 1972-12-11 1973-12-03 Improvements in electric cables
ES421319A ES421319A1 (en) 1972-12-11 1973-12-10 A method of forming a nucleus of cables. (Machine-translation by Google Translate, not legally binding)
CA187,743A CA990816A (en) 1972-12-11 1973-12-10 Electric cables
HK655/76*UA HK65576A (en) 1972-12-11 1976-10-21 Improvements in electric cables
MY197742A MY7700042A (en) 1972-12-11 1977-12-31 Improvements in electric cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5696472A GB1432560A (en) 1972-12-11 1972-12-11

Publications (1)

Publication Number Publication Date
GB1432560A true GB1432560A (en) 1976-04-22

Family

ID=10477998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5696472A Expired GB1432560A (en) 1972-12-11 1972-12-11

Country Status (6)

Country Link
CA (1) CA990816A (en)
ES (1) ES421319A1 (en)
GB (1) GB1432560A (en)
HK (1) HK65576A (en)
MY (1) MY7700042A (en)
ZA (1) ZA739166B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247504A (en) * 1976-10-18 1981-01-27 Oy Nokia Ab Method of manufacturing plastic covered highvoltage cables
GB2298081A (en) * 1995-02-16 1996-08-21 Delta Crompton Cables Ltd Electric cable
CN104795178A (en) * 2014-10-11 2015-07-22 安徽明星电缆有限公司 Preparation technology for rail transit vehicle cable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247504A (en) * 1976-10-18 1981-01-27 Oy Nokia Ab Method of manufacturing plastic covered highvoltage cables
GB2298081A (en) * 1995-02-16 1996-08-21 Delta Crompton Cables Ltd Electric cable
GB2298081B (en) * 1995-02-16 1999-04-07 Delta Crompton Cables Ltd Electric cable
CN104795178A (en) * 2014-10-11 2015-07-22 安徽明星电缆有限公司 Preparation technology for rail transit vehicle cable

Also Published As

Publication number Publication date
MY7700042A (en) 1977-12-31
ES421319A1 (en) 1976-06-16
CA990816A (en) 1976-06-08
ZA739166B (en) 1974-10-30
HK65576A (en) 1976-10-29

Similar Documents

Publication Publication Date Title
GB1214181A (en) Control of the dimensions of multiple layers of extruded insulation
US3885085A (en) High voltage solid extruded insulated power cables
GB1036465A (en) Method and apparatus for extruding laminar coverings on moving cores
GB1228820A (en)
GB999549A (en) Improvements in and methods of manufacturing electric cables
GB1103098A (en) Improvements in or relating to shielded electric cable
SE7711619L (en) PROCEDURE FOR MANUFACTURE OF HIGH VOLTAGE PLASTIC CABLES
IE42140L (en) Electric cable
GB1432560A (en)
GB334840A (en) Improvements in the manufacture of electric cables
GB951155A (en) Composite dielectric material for wires and cables
US3962517A (en) Electric cables
GB926065A (en) Improvements in shielded electric cables
IE41389L (en) Manufacture of longitudinally watertight cable
GB1161210A (en) Conductors Surrounded by Three or More Extruded Layers.
GB1299563A (en) Ethylene-propylene rubber insulated cable
GB1273696A (en) Insulated electrical conductor and method of making
GB1137626A (en) Improvements in or relating to the manufacture of electrical cable insulated with a synthetic plastics material
GB1370122A (en) Electric cables
JPS5290086A (en) Manufacturing method of resin mold having buried metallic conductor
GB1168128A (en) Power Cable
GB1336407A (en) Method of shielding high voltage solid dielectric power cables
JP3087284B2 (en) Electrical insulation cable
JPS5810384A (en) Method of forming connector of insulated cable
FR2275000A1 (en) Electric cable core with low cohesion intermediate layer - between insulator and sheath, to facilitate removal of sheath (SW19.1.76)

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee