JPS53107687A - Water tree detection method for cable - Google Patents

Water tree detection method for cable

Info

Publication number
JPS53107687A
JPS53107687A JP2177977A JP2177977A JPS53107687A JP S53107687 A JPS53107687 A JP S53107687A JP 2177977 A JP2177977 A JP 2177977A JP 2177977 A JP2177977 A JP 2177977A JP S53107687 A JPS53107687 A JP S53107687A
Authority
JP
Japan
Prior art keywords
water tree
cable
detection method
tree detection
discharging
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
JP2177977A
Other languages
Japanese (ja)
Other versions
JPS5848861B2 (en
Inventor
Minoru Yamamoto
Setsuya Isshiki
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 JP52021779A priority Critical patent/JPS5848861B2/en
Publication of JPS53107687A publication Critical patent/JPS53107687A/en
Publication of JPS5848861B2 publication Critical patent/JPS5848861B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Testing Relating To Insulation (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Manufacturing Of Electric Cables (AREA)

Abstract

PURPOSE: To detect water tree occurring portion with ease by bypassing initial instantaneous discharging current during discharging and measuring discharging characteristic of residual current after elapsing of redetermined time.
COPYRIGHT: (C)1978,JPO&Japio
JP52021779A 1977-03-01 1977-03-01 How to detect water trees in cables Expired JPS5848861B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52021779A JPS5848861B2 (en) 1977-03-01 1977-03-01 How to detect water trees in cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52021779A JPS5848861B2 (en) 1977-03-01 1977-03-01 How to detect water trees in cables

Publications (2)

Publication Number Publication Date
JPS53107687A true JPS53107687A (en) 1978-09-19
JPS5848861B2 JPS5848861B2 (en) 1983-10-31

Family

ID=12064537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52021779A Expired JPS5848861B2 (en) 1977-03-01 1977-03-01 How to detect water trees in cables

Country Status (1)

Country Link
JP (1) JPS5848861B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0412950Y2 (en) * 1985-04-27 1992-03-26

Also Published As

Publication number Publication date
JPS5848861B2 (en) 1983-10-31

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