JPS55141677A - Fault point detecting method of cable - Google Patents

Fault point detecting method of cable

Info

Publication number
JPS55141677A
JPS55141677A JP5015479A JP5015479A JPS55141677A JP S55141677 A JPS55141677 A JP S55141677A JP 5015479 A JP5015479 A JP 5015479A JP 5015479 A JP5015479 A JP 5015479A JP S55141677 A JPS55141677 A JP S55141677A
Authority
JP
Japan
Prior art keywords
cable
fault point
potential difference
polarity
changed
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.)
Granted
Application number
JP5015479A
Other languages
Japanese (ja)
Other versions
JPS6229748B2 (en
Inventor
Hironori Matsuba
Satoshi Ishikawa
Akio Yoshizawa
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co Ltd
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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP5015479A priority Critical patent/JPS55141677A/en
Publication of JPS55141677A publication Critical patent/JPS55141677A/en
Publication of JPS6229748B2 publication Critical patent/JPS6229748B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Locating Faults (AREA)

Abstract

PURPOSE: To detect cable fault point readily and accurately by obtaining the potential difference when the polarity of the DC voltage to be applied to the cable to be measured is changed and the potential difference between cable conductors.
CONSTITUTION: A switch S is closed and the value of a voltmeter Vx is read. Next, with the switch S being held closed, the polarity of an electric power source E is changed and the value of the voltmeter Vx is read. If the potential difference of the voltages between the respective conductors and shield layers and the potential difference V0 between the cables 1, 2 to be measured when the polarity of the DC power source E is changed are measured in this way, the ratio of the resistances up to the fault point of the cable conductors, namely, from the terminal up to the fault point, may be known.
COPYRIGHT: (C)1980,JPO&Japio
JP5015479A 1979-04-23 1979-04-23 Fault point detecting method of cable Granted JPS55141677A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5015479A JPS55141677A (en) 1979-04-23 1979-04-23 Fault point detecting method of cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5015479A JPS55141677A (en) 1979-04-23 1979-04-23 Fault point detecting method of cable

Publications (2)

Publication Number Publication Date
JPS55141677A true JPS55141677A (en) 1980-11-05
JPS6229748B2 JPS6229748B2 (en) 1987-06-27

Family

ID=12851259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5015479A Granted JPS55141677A (en) 1979-04-23 1979-04-23 Fault point detecting method of cable

Country Status (1)

Country Link
JP (1) JPS55141677A (en)

Also Published As

Publication number Publication date
JPS6229748B2 (en) 1987-06-27

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