GB764657A - Improvements in or relating to electric cables - Google Patents

Improvements in or relating to electric cables

Info

Publication number
GB764657A
GB764657A GB420355A GB420355A GB764657A GB 764657 A GB764657 A GB 764657A GB 420355 A GB420355 A GB 420355A GB 420355 A GB420355 A GB 420355A GB 764657 A GB764657 A GB 764657A
Authority
GB
United Kingdom
Prior art keywords
conductors
bared
feb
cable
coil
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
GB420355A
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.)
SUDDEUTSCHE KABELWERKE ZWEIGNE
Original Assignee
SUDDEUTSCHE KABELWERKE ZWEIGNE
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 SUDDEUTSCHE KABELWERKE ZWEIGNE filed Critical SUDDEUTSCHE KABELWERKE ZWEIGNE
Publication of GB764657A publication Critical patent/GB764657A/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
    • H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
    • H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/34—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using capacitative elements
    • G01K7/343—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using capacitative elements the dielectric constant of which is temperature dependant

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermally Actuated Switches (AREA)
  • Locating Faults (AREA)

Abstract

764,657. Thermal switches. SUDDEUTSCHE KABELWERKE ZWEIGNIEDERLASSUNG DER VEREINIGTE DEUTSCHE METALLWERKE AKT.-GES. Feb. 11, 1955 [Feb. 12, 1954], No. 4203/55. Class 38(5) [Also in Group XXXVI] Excessive heating in cable is indicated by a signalling system incorporated in the cable and comprising several conductors' and thermally-responsive means which produces a sufdden change in impedance between said conductors at any place along the system at which heating occurs. A shortcircuit may be formed between two of the signalling conductors 16, 17, Fig. 4, by means of a bimetallic coil 13 wound around a third, insulated, conductor 14, the conductors 16, 17 being bared adjacent the ends of the coil 13. Alternatively a V- shaped bimetallic strip 18, Fig. 7, may be supported by an insulating member 19 between bared portions of conductors 14, 16. In either case, excessive heating causes the bimetallic strip to contact the two bared conductors.
GB420355A 1954-02-12 1955-02-11 Improvements in or relating to electric cables Expired GB764657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES37610A DE1038140B (en) 1954-02-12 1954-02-12 Electric cable, in particular power cable, with a device for monitoring its operating temperature

Publications (1)

Publication Number Publication Date
GB764657A true GB764657A (en) 1956-12-28

Family

ID=7482629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB420355A Expired GB764657A (en) 1954-02-12 1955-02-11 Improvements in or relating to electric cables

Country Status (3)

Country Link
DE (1) DE1038140B (en)
FR (1) FR1119076A (en)
GB (1) GB764657A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1577918A3 (en) * 2004-03-20 2007-08-01 Hans Schneider Device for detecting locally appearing overtemperatures
US10488273B2 (en) 2013-12-20 2019-11-26 Leoni Kabel Holding Gmbh Measuring arrangement and temperature-measuring method, and sensor cable for such a measuring arrangement
US11041899B2 (en) 2016-11-11 2021-06-22 Leoni Kabel Gmbh Method and measuring assembly for monitoring a line

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4707686A (en) * 1986-04-03 1987-11-17 General Electric Company Over temperature sensing system for power cables
DE102008030730B4 (en) 2008-06-30 2013-11-14 Universität Kassel Method and device for measuring the temperature in a line or a bundle of cables and equipped with such a device vehicle
DE102020003143B4 (en) 2020-05-26 2021-12-09 Lapp Engineering Ag Device and method for line and cable diagnosis
DE102021000284B4 (en) 2021-01-20 2023-10-26 Lapp Engineering Ag System for monitoring a feed line of an electrical machine powered by a frequency converter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1152932A (en) * 1910-08-19 1915-09-07 J a riggs Automatic fire-alarm.
CH150426A (en) * 1929-11-06 1931-10-31 Siemens Ag Device for temperature measurement on cables.
DE624998C (en) * 1931-06-23 1936-02-01 Max Weiset Dr Ing Power cable with a device for displaying insulation faults and the location of the fault
US2495867A (en) * 1948-01-14 1950-01-31 Petcar Res Corp Method of manufacturing fire detector and like elements
US2581213A (en) * 1949-12-15 1952-01-01 Gen Electric Temperature responsive signaling and locating system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1577918A3 (en) * 2004-03-20 2007-08-01 Hans Schneider Device for detecting locally appearing overtemperatures
US10488273B2 (en) 2013-12-20 2019-11-26 Leoni Kabel Holding Gmbh Measuring arrangement and temperature-measuring method, and sensor cable for such a measuring arrangement
US11041899B2 (en) 2016-11-11 2021-06-22 Leoni Kabel Gmbh Method and measuring assembly for monitoring a line

Also Published As

Publication number Publication date
DE1038140B (en) 1958-09-04
FR1119076A (en) 1956-06-14

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