GB1220669A - Method of sealing cables longitudinally against water - Google Patents

Method of sealing cables longitudinally against water

Info

Publication number
GB1220669A
GB1220669A GB35079/69A GB3507969A GB1220669A GB 1220669 A GB1220669 A GB 1220669A GB 35079/69 A GB35079/69 A GB 35079/69A GB 3507969 A GB3507969 A GB 3507969A GB 1220669 A GB1220669 A GB 1220669A
Authority
GB
United Kingdom
Prior art keywords
copolymer
foil
sheath
july
against water
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
GB35079/69A
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.)
Vereinigte Draht und Kabelwerke AG
Original Assignee
Vereinigte Draht und Kabelwerke AG
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 Vereinigte Draht und Kabelwerke AG filed Critical Vereinigte Draht und Kabelwerke AG
Publication of GB1220669A publication Critical patent/GB1220669A/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
    • H01B7/20—Metal tubes, e.g. lead sheaths
    • H01B7/202—Longitudinal lapped metal tubes
    • 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
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective 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
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
    • H01B13/2613—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping
    • 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
    • H01B7/2855—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using foamed plastic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)
  • Cable Accessories (AREA)
  • Manufacturing Of Electric Cables (AREA)

Abstract

1,220,669. Cables. VEREINIGTE DRAHTUND KABELWERKE A.G. 11 July, 1969 [13 July, 1968], No. 35079/69. Heading H1A. A cable is sealed against the ingress of water in a longitudinal direction by a metal foil 3, coated on one side with a copolymer 2, wrapped around the cable core which is embedded in a foamable material 1, to which the uncoated side adheres during or after foaming, and a sheath is provided around the metal foil. The seam 4 of the metal, e.g. aluminium foil 3, may be folded over, such that the bonding is between copolymer and copolymer, and sealed by heating before the sheath (not shown) is fitted. If a larger spacing is needed between the core and the foil to improve the dielectric strength, a wide mesh plastics net may be inserted to provided an additional space which is filled by the foam, which may be polyurethane.
GB35079/69A 1968-07-13 1969-07-11 Method of sealing cables longitudinally against water Expired GB1220669A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1765757A DE1765757C2 (en) 1968-07-13 1968-07-13 Process for sealing cables against longitudinal water

Publications (1)

Publication Number Publication Date
GB1220669A true GB1220669A (en) 1971-01-27

Family

ID=5698592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35079/69A Expired GB1220669A (en) 1968-07-13 1969-07-11 Method of sealing cables longitudinally against water

Country Status (8)

Country Link
BE (1) BE736007A (en)
CH (1) CH492285A (en)
DE (1) DE1765757C2 (en)
FR (1) FR2012930A1 (en)
GB (1) GB1220669A (en)
NL (1) NL6910636A (en)
NO (1) NO130917C (en)
SE (1) SE365645B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1139169B (en) * 1958-05-16 1962-11-08 Osnabruecker Kupfer Und Draht Process for the production of a longitudinally watertight conductor for electrical cables
US3206541A (en) * 1963-04-29 1965-09-14 Gen Cable Corp Sheathed electrical cable
US3315025A (en) * 1964-12-30 1967-04-18 Anaconda Wire & Cable Co Electric cable with improved resistance to moisture penetration
US3332138A (en) * 1965-08-11 1967-07-25 Gen Cable Corp Method and apparatus for making precision sized tubing

Also Published As

Publication number Publication date
DE1765757B1 (en) 1972-03-09
BE736007A (en) 1969-12-16
DE1765757C2 (en) 1974-10-03
NO130917C (en) 1975-03-05
CH492285A (en) 1970-06-15
SE365645B (en) 1974-03-25
NO130917B (en) 1974-11-25
FR2012930A1 (en) 1970-03-27
NL6910636A (en) 1970-01-15

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