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JPS6461673A - Accident section detecting method for power cable - Google Patents

Accident section detecting method for power cable

Info

Publication number
JPS6461673A
JPS6461673A JP21839287A JP21839287A JPS6461673A JP S6461673 A JPS6461673 A JP S6461673A JP 21839287 A JP21839287 A JP 21839287A JP 21839287 A JP21839287 A JP 21839287A JP S6461673 A JPS6461673 A JP S6461673A
Authority
JP
Japan
Prior art keywords
accident
current
current sensor
connection box
normal connection
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
JP21839287A
Other languages
Japanese (ja)
Other versions
JP2568092B2 (en
Inventor
Kazuo Amano
Shotaro Yoshida
Isao Miura
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.)
Fujikura Ltd
Original Assignee
Fujikura 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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP62218392A priority Critical patent/JP2568092B2/en
Publication of JPS6461673A publication Critical patent/JPS6461673A/en
Application granted granted Critical
Publication of JP2568092B2 publication Critical patent/JP2568092B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Locating Faults (AREA)

Abstract

PURPOSE:To securely and easily detect an accident section by connecting an edge-cut cable sheath by a bond wire, grounding respective bond wires, and providing a current sensor on one power source side and comparing and discriminating the level of an accident current. CONSTITUTION:If a ground fault occurs at an accident point 66 between insulating connection boxes 35 and 36 on a line, accident currents I and I' flow as shown by arrows. The accident current I which flows to the right passes through the current sensor 56c of a normal connection box 42 and is then shunt by a ground line 40 and reduced to almost I/3. Further, the current values of the current sensor of a right-hand side normal connection box 41 is also almost I/3. Further, the accident current I' which flows to the right from the accident point 60 is shunt by the ground line 40 in a 1st normal connection box 43 to almost I'/3 and measured by respective current sensors 56. Consequently, it is discriminated that the accident point is on the side of the bond wire of a current sensor which detects the large accident current.
JP62218392A 1987-09-01 1987-09-01 Power cable accident section detection method Expired - Fee Related JP2568092B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62218392A JP2568092B2 (en) 1987-09-01 1987-09-01 Power cable accident section detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62218392A JP2568092B2 (en) 1987-09-01 1987-09-01 Power cable accident section detection method

Publications (2)

Publication Number Publication Date
JPS6461673A true JPS6461673A (en) 1989-03-08
JP2568092B2 JP2568092B2 (en) 1996-12-25

Family

ID=16719187

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62218392A Expired - Fee Related JP2568092B2 (en) 1987-09-01 1987-09-01 Power cable accident section detection method

Country Status (1)

Country Link
JP (1) JP2568092B2 (en)

Also Published As

Publication number Publication date
JP2568092B2 (en) 1996-12-25

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees