JPS55158569A - Disconnection detecting method of insulated wire for aerial transmission system - Google Patents

Disconnection detecting method of insulated wire for aerial transmission system

Info

Publication number
JPS55158569A
JPS55158569A JP6702179A JP6702179A JPS55158569A JP S55158569 A JPS55158569 A JP S55158569A JP 6702179 A JP6702179 A JP 6702179A JP 6702179 A JP6702179 A JP 6702179A JP S55158569 A JPS55158569 A JP S55158569A
Authority
JP
Japan
Prior art keywords
light
optical fiber
transmission system
insulated wire
detecting method
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
Application number
JP6702179A
Other languages
Japanese (ja)
Inventor
Norio Abe
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP6702179A priority Critical patent/JPS55158569A/en
Publication of JPS55158569A publication Critical patent/JPS55158569A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To detect disconnection of the wire very effectively for public safety by detecting the arc light when it burns out.
CONSTITUTION: An optical fiber 2 is twisted into the clearance of the conductor 1. A severe arc discharge takes place when the wire burns out. At this moment, the optical fiber is left protruded into the arc at the burnt point. Even if there is little coupling at the section of the fiber, the optical fiber is able to transmit light detectable because the light source has a large intensity enough to do so. The light thus transmitted is detected by the light detector 5.
COPYRIGHT: (C)1980,JPO&Japio
JP6702179A 1979-05-30 1979-05-30 Disconnection detecting method of insulated wire for aerial transmission system Pending JPS55158569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6702179A JPS55158569A (en) 1979-05-30 1979-05-30 Disconnection detecting method of insulated wire for aerial transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6702179A JPS55158569A (en) 1979-05-30 1979-05-30 Disconnection detecting method of insulated wire for aerial transmission system

Publications (1)

Publication Number Publication Date
JPS55158569A true JPS55158569A (en) 1980-12-10

Family

ID=13332820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6702179A Pending JPS55158569A (en) 1979-05-30 1979-05-30 Disconnection detecting method of insulated wire for aerial transmission system

Country Status (1)

Country Link
JP (1) JPS55158569A (en)

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