ES473000A1 - Procedimiento y aparato para controlar el desequilibrio de capacitancia a tierra entre conductores - Google Patents

Procedimiento y aparato para controlar el desequilibrio de capacitancia a tierra entre conductores

Info

Publication number
ES473000A1
ES473000A1 ES473000A ES473000A ES473000A1 ES 473000 A1 ES473000 A1 ES 473000A1 ES 473000 A ES473000 A ES 473000A ES 473000 A ES473000 A ES 473000A ES 473000 A1 ES473000 A1 ES 473000A1
Authority
ES
Spain
Prior art keywords
ground
cables
methods
capacitance unbalance
controlling capacitance
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
ES473000A
Other languages
English (en)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of ES473000A1 publication Critical patent/ES473000A1/es
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
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors
    • G01R31/59—Testing of lines, cables or conductors while the cable continuously passes the testing apparatus, e.g. during manufacture
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

Procedimiento y aparato para controlar el desequilibrio de capcitancia a tierra entre conductores, en donde los conductores individuales están cubiertos con un material de aislamiento de plástico para formar conductores aislados y se mide la capacitancia coaxial y diámetro exterior de cada uno de los conductores, procedimiento caracterizado porque comprende de las fases de: generar eléctricas correspondientes a la capacitancia coaxial y diámetro exterior medios de cada conductor aislado y relacionar éstas señales con el desequilibrio de capacitancia a tierra entre cada conductor y un conductor aislado de referencia que tiene valores previamente elegidos de capacitancia coaxial y diámetro exterior; y porque se controla el proceso de cubrir cada conductor para mantener el desequilibrio de capacitancia a tierra entre cada conductor y el conductor de referencia dentro de una gama de valores predeterminada.
ES473000A 1977-08-31 1978-08-31 Procedimiento y aparato para controlar el desequilibrio de capacitancia a tierra entre conductores Expired ES473000A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/829,362 US4174236A (en) 1977-08-31 1977-08-31 Methods of and apparatus for controlling capacitance unbalance-to-ground in cables

Publications (1)

Publication Number Publication Date
ES473000A1 true ES473000A1 (es) 1979-03-16

Family

ID=25254324

Family Applications (1)

Application Number Title Priority Date Filing Date
ES473000A Expired ES473000A1 (es) 1977-08-31 1978-08-31 Procedimiento y aparato para controlar el desequilibrio de capacitancia a tierra entre conductores

Country Status (7)

Country Link
US (1) US4174236A (es)
EP (1) EP0000954B1 (es)
JP (1) JPS5448086A (es)
CA (1) CA1105594A (es)
DE (1) DE2861199D1 (es)
ES (1) ES473000A1 (es)
IT (1) IT1099315B (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4244897A (en) * 1979-03-22 1981-01-13 Measurex Corporation Method and apparatus to control the density of products produced from an extrusion process
US4262164A (en) * 1979-11-27 1981-04-14 Bell Telephone Laboratories, Incorporated Telecommunications multipair cable
US4412094A (en) * 1980-05-21 1983-10-25 Western Electric Company, Inc. Compositely insulated conductor riser cable
US4340554A (en) * 1980-09-29 1982-07-20 Bardwell Robert G Method and apparatus for extrusion coating of a cable involving guider tip protection from an oversized portion of the cable
US4585603A (en) * 1982-03-15 1986-04-29 Showa Electric Wire & Cable Co., Ltd Method for controlling an extrusion line for foamed insulation cables involving use of a plurality of generated and measured electrical signals
US4592881A (en) * 1982-11-15 1986-06-03 Beta Instrument Company Limited Method for controlling a foam resin cable coating extrusion process
GB2130763B (en) * 1982-11-15 1986-05-21 Beta Instr Co Method and apparatus for controlling a cellular foam cable coating extrusion process
US4604497A (en) * 1983-07-28 1986-08-05 Northern Telecom Limited Electrical conductor for telecommunications cable
JP3093518B2 (ja) * 1993-06-02 2000-10-03 株式会社神戸製鋼所 金属線被覆設備の制御方法
JPH07153330A (ja) * 1993-11-29 1995-06-16 Junkosha Co Ltd 同軸ケーブル用コア、これを用いた同軸ケーブル、およびその製造方法
US5814768A (en) * 1996-06-03 1998-09-29 Commscope, Inc. Twisted pairs communications cable
US6140587A (en) * 1997-05-20 2000-10-31 Shaw Industries, Ltd. Twin axial electrical cable
DE60125948T2 (de) * 2001-10-22 2007-08-30 Nexans Kabel versehen mit einem äusseren Extrusionsmantel und Verfahren zur Herstellung des Kabels
FI20160270L (fi) * 2016-11-07 2018-05-08 Snow Secure Oy Menetelmä lumen varastointiin

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047276B (de) * 1958-03-29 1958-12-24 Siemens Ag Verfahren zur automatischen Regelung der Dicke und der Kapazitaet eines mit einem thermoplastischen Kunststoff umspritzten elektrischen Leiters
CH462910A (de) * 1967-02-13 1968-09-30 Gen Cable Corp Verfahren und Vorrichtung zum Aufbringen von Kunststoffschichten auf einen elektrischen Leiter
US3973187A (en) * 1973-01-04 1976-08-03 Western Electric Company, Inc. Sensing capacitance and thickness of insulated cable to provide outputs related to weigh and percent voids
US4017228A (en) * 1973-01-04 1977-04-12 Western Electric Company, Inc. Apparatus for monitoring cellular dielectric material
US3914357A (en) * 1973-01-04 1975-10-21 Western Electric Co Method of monitoring the application of cellular plastic insulation to elongated conductive material
DE2405654A1 (de) * 1974-02-04 1975-08-07 Siemens Ag Verfahren zur konstanthaltung der abmessungen und elektrischen eigenschaften von kabeladern mit verzellter kunststoffisolierung bei deren herstellung durch extrusion
CA1087712A (en) * 1976-11-01 1980-10-14 Northern Telecom Limited Control for wire coating line

Also Published As

Publication number Publication date
JPS5448086A (en) 1979-04-16
IT7827163A0 (it) 1978-08-30
JPS6235208B2 (es) 1987-07-31
US4174236A (en) 1979-11-13
DE2861199D1 (en) 1981-12-24
EP0000954A2 (en) 1979-03-07
IT1099315B (it) 1985-09-18
EP0000954A3 (en) 1979-04-04
CA1105594A (en) 1981-07-21
EP0000954B1 (en) 1981-10-21

Similar Documents

Publication Publication Date Title
ES473000A1 (es) Procedimiento y aparato para controlar el desequilibrio de capacitancia a tierra entre conductores
ES421993A1 (es) Metodo con su aparato correspondiente para controlar la a- plicacion de un material dielectrico.
JPS5240571A (en) Method of producing extruded product and insulated electric cable produced thereby
GB989815A (en) Improved electrical conductor assembly and method of making same
GB1344686A (en) Cables
GB838580A (en) Methods and apparatus for colour coding electric conductors
JPS5363483A (en) Continuous vulcanization method of polymer cable insulant
CA954636A (en) Method of producing tubular conductors for superconducting cables and the like
AU2721077A (en) Extruding polymer materials for high-voltage cables with cross-bound insulation
GB1100819A (en) Telecommunication cables
GB1458639A (en) Electrical cable including an insulation core and an polymers prepared therefrom
JPS5351481A (en) Production of insulated wire with dense foamed coating
KR790000718B1 (en) Method of monitoring the application of cellular plastic to elongated conductive material
GB570379A (en) Improvements in electric cables particularly applicable for high frequencies
JPS5358684A (en) Test method of insulators of extrusion insulated cables
GB592060A (en) Improvements relating to electric cables and the manufacture thereof
GB744279A (en) Improved construction of electric communication cable
JPS52129786A (en) Production of rubber or plastic insulated electric cable
GB886417A (en) Improvements in electric cables
AU503492B2 (en) Cable insulation extrusion die
CA908780A (en) Metallic sheathed cables with foam cellular polyolefin insulation and method of making
GB857847A (en) Methods and apparatus for colour coding electric conductors
JPS52150584A (en) Manufacturing method and device of insulator for coaxial cable
JPS54128246A (en) Delay time adjusting method
GB1468213A (en) Method of and apparatus for making an insulated cable

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990206