JPS5642156A - Measuring method for accident point of cable - Google Patents
Measuring method for accident point of cableInfo
- Publication number
- JPS5642156A JPS5642156A JP11810079A JP11810079A JPS5642156A JP S5642156 A JPS5642156 A JP S5642156A JP 11810079 A JP11810079 A JP 11810079A JP 11810079 A JP11810079 A JP 11810079A JP S5642156 A JPS5642156 A JP S5642156A
- Authority
- JP
- Japan
- Prior art keywords
- pulses
- phase line
- accident
- accident point
- near end
- 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.)
- Pending
Links
Landscapes
- Locating Faults (AREA)
Abstract
PURPOSE: To enable easy measurement of the position of the accident point without using a differential detector by a method wherein pulses of reversed polarity, having the same potential and the same waveform, are sent out to a sound phase line and an accident phase line and at the middle point thereof the pulses are obtained differentially.
CONSTITUTION: The sound phase line X and the branch line X' thereof are charged with the voltage from a DC power source E. And, the near end AX of the sound phase line X and the near end AY of an accident phase line Y are short-circuitted by a spherical electrode S inserted between two ends AX and AY. Then, from the sphereical electrode S pulses of reversed polarities are transmitted to the lines X and Y, respectively, and these pulses are of the same voltage and of the same waveform. The reflected pulse at the accident point F appears as the 1st reflected pulse next to a sent-out pulse on a synchroscope SH, and the distance from the near end AY to the accident point F is calculated based on the speed of the transmission of pulses through the cable.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11810079A JPS5642156A (en) | 1979-09-14 | 1979-09-14 | Measuring method for accident point of cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11810079A JPS5642156A (en) | 1979-09-14 | 1979-09-14 | Measuring method for accident point of cable |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5642156A true JPS5642156A (en) | 1981-04-20 |
Family
ID=14727997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11810079A Pending JPS5642156A (en) | 1979-09-14 | 1979-09-14 | Measuring method for accident point of cable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642156A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60181665A (en) * | 1984-02-29 | 1985-09-17 | Dainichi Nippon Cables Ltd | Locating of insulation deterioration point of cable |
JPS6255569A (en) * | 1985-09-04 | 1987-03-11 | Showa Electric Wire & Cable Co Ltd | Location of fault point for cable line |
JPH0191263U (en) * | 1987-12-09 | 1989-06-15 |
-
1979
- 1979-09-14 JP JP11810079A patent/JPS5642156A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60181665A (en) * | 1984-02-29 | 1985-09-17 | Dainichi Nippon Cables Ltd | Locating of insulation deterioration point of cable |
JPS6255569A (en) * | 1985-09-04 | 1987-03-11 | Showa Electric Wire & Cable Co Ltd | Location of fault point for cable line |
JPH0191263U (en) * | 1987-12-09 | 1989-06-15 |
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