GB1468022A - Location of faults in electric cables - Google Patents

Location of faults in electric cables

Info

Publication number
GB1468022A
GB1468022A GB3544673A GB3544673A GB1468022A GB 1468022 A GB1468022 A GB 1468022A GB 3544673 A GB3544673 A GB 3544673A GB 3544673 A GB3544673 A GB 3544673A GB 1468022 A GB1468022 A GB 1468022A
Authority
GB
United Kingdom
Prior art keywords
break
conductor
location
change
broken
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
GB3544673A
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Priority to GB3544673A priority Critical patent/GB1468022A/en
Publication of GB1468022A publication Critical patent/GB1468022A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
    • 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
    • G01R31/54—Testing for continuity

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Locating Faults (AREA)

Abstract

1468022 Locating faults in cables BICC Ltd 25 July 1974 [25 July 1973] 35446/73 Heading G1U Having established that a conductor 4, 5, Fig. 1 in a multi-core cable is broken, the location of the break is found by connecting one part 5 of the broken conductor to the other conductors and to earth as shown, by causing small localized flexing of the cable, for example by striking it with a tube 7, and by simultaneously detecting any resultant change in potential of the isolated part 4 of the broken cables. According to the Specification each blow by tube 7 causes a momentary change in the potential of the isolated part 4 of the conductor, the magnitude of the change when the blows are just before the break on part 4 being substantially larger than when the blows are just past the break on the earthed part 5. Thus, by applying a succession of blows along the faulty conductor the location of the break can be determined by noting the position at which the resulting potentials on the isolated part 4 change abruptly in magnitude.
GB3544673A 1974-07-25 1974-07-25 Location of faults in electric cables Expired GB1468022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3544673A GB1468022A (en) 1974-07-25 1974-07-25 Location of faults in electric cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3544673A GB1468022A (en) 1974-07-25 1974-07-25 Location of faults in electric cables

Publications (1)

Publication Number Publication Date
GB1468022A true GB1468022A (en) 1977-03-23

Family

ID=10377833

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3544673A Expired GB1468022A (en) 1974-07-25 1974-07-25 Location of faults in electric cables

Country Status (1)

Country Link
GB (1) GB1468022A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600034A1 (en) * 1986-01-03 1987-07-09 Franke Lutz Dr Ing METHOD FOR DETERMINING MECHANICAL DEFECTS ON COMPONENTS MADE OF COMPOSITE FIBER MATERIAL, APPLICATION OF THE METHOD AND MEASURING DEVICE AND REINFORCEMENT BAR FOR IMPLEMENTING THE METHOD
GB2521183A (en) * 2013-12-12 2015-06-17 Camlin Technologies Ltd Method and apparatus for testing current limited devices
CN107610819A (en) * 2017-09-18 2018-01-19 浙江华普电缆有限公司 A kind of vibration wireline

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600034A1 (en) * 1986-01-03 1987-07-09 Franke Lutz Dr Ing METHOD FOR DETERMINING MECHANICAL DEFECTS ON COMPONENTS MADE OF COMPOSITE FIBER MATERIAL, APPLICATION OF THE METHOD AND MEASURING DEVICE AND REINFORCEMENT BAR FOR IMPLEMENTING THE METHOD
GB2521183A (en) * 2013-12-12 2015-06-17 Camlin Technologies Ltd Method and apparatus for testing current limited devices
GB2521183B (en) * 2013-12-12 2016-03-16 Camlin Technologies Ltd Method and apparatus for testing current limited devices
CN107610819A (en) * 2017-09-18 2018-01-19 浙江华普电缆有限公司 A kind of vibration wireline

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee