JPS5465906A - Method of detecting wear of trolley wire - Google Patents
Method of detecting wear of trolley wireInfo
- Publication number
- JPS5465906A JPS5465906A JP13323977A JP13323977A JPS5465906A JP S5465906 A JPS5465906 A JP S5465906A JP 13323977 A JP13323977 A JP 13323977A JP 13323977 A JP13323977 A JP 13323977A JP S5465906 A JPS5465906 A JP S5465906A
- Authority
- JP
- Japan
- Prior art keywords
- trolley wire
- wire
- wear
- optical
- luminous element
- 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
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE: To provide a detection system which enables accurate management of the wear of the trolley wire as compared with the conventional visual method through detection based on the condition of operation while ensuring accurate action and improving the reliability with a simple device employing a optical system for signal.
CONSTITUTION: For example, an alarm wire 1 insulated is buried at a position which is considered as the wear limit of a AC trolley wire T. A luminous element 2 made of luminous semi-conductor and a DC power source are directly connected to the alarm wire 1 to form a DC circuit. One end of an optical carrier cable 4 such as optical fiber cable is directed to the luminous element 2 while at the other end thereof, provided is an optical-electric signal convertor 5 to which a detection indicator 6 is connected. On the other hand, the power source 3 is charged by a rectifying circuit 8 on the secondary side of a power transformer mounted on the trolley wire T. With such an arrangement, any wear of the trolley wire breaks the insulation of the alarm wire 1 causing the luminous element 2 to emit light thereby actuating the device 6.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13323977A JPS5465906A (en) | 1977-11-07 | 1977-11-07 | Method of detecting wear of trolley wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13323977A JPS5465906A (en) | 1977-11-07 | 1977-11-07 | Method of detecting wear of trolley wire |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5465906A true JPS5465906A (en) | 1979-05-28 |
Family
ID=15099952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13323977A Pending JPS5465906A (en) | 1977-11-07 | 1977-11-07 | Method of detecting wear of trolley wire |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5465906A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4912955B1 (en) * | 1970-02-10 | 1974-03-28 |
-
1977
- 1977-11-07 JP JP13323977A patent/JPS5465906A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4912955B1 (en) * | 1970-02-10 | 1974-03-28 |
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