JPS6030542Y2 - 絶縁継手保護装置 - Google Patents

絶縁継手保護装置

Info

Publication number
JPS6030542Y2
JPS6030542Y2 JP5325379U JP5325379U JPS6030542Y2 JP S6030542 Y2 JPS6030542 Y2 JP S6030542Y2 JP 5325379 U JP5325379 U JP 5325379U JP 5325379 U JP5325379 U JP 5325379U JP S6030542 Y2 JPS6030542 Y2 JP S6030542Y2
Authority
JP
Japan
Prior art keywords
transistor
current
variable resistor
protection device
joint protection
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.)
Expired
Application number
JP5325379U
Other languages
English (en)
Japanese (ja)
Other versions
JPS55152894U (OSRAM
Inventor
武夫 早川
三郎 土谷
悦一 小関
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.)
Nippon Corrosion Engineering Co Ltd
Original Assignee
Nippon Corrosion Engineering Co 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 Nippon Corrosion Engineering Co Ltd filed Critical Nippon Corrosion Engineering Co Ltd
Priority to JP5325379U priority Critical patent/JPS6030542Y2/ja
Publication of JPS55152894U publication Critical patent/JPS55152894U/ja
Application granted granted Critical
Publication of JPS6030542Y2 publication Critical patent/JPS6030542Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Prevention Of Electric Corrosion (AREA)
JP5325379U 1979-04-20 1979-04-20 絶縁継手保護装置 Expired JPS6030542Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5325379U JPS6030542Y2 (ja) 1979-04-20 1979-04-20 絶縁継手保護装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5325379U JPS6030542Y2 (ja) 1979-04-20 1979-04-20 絶縁継手保護装置

Publications (2)

Publication Number Publication Date
JPS55152894U JPS55152894U (OSRAM) 1980-11-04
JPS6030542Y2 true JPS6030542Y2 (ja) 1985-09-12

Family

ID=28945916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5325379U Expired JPS6030542Y2 (ja) 1979-04-20 1979-04-20 絶縁継手保護装置

Country Status (1)

Country Link
JP (1) JPS6030542Y2 (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59120633U (ja) * 1983-02-02 1984-08-14 日本防蝕工業株式会社 帰線自動開閉装置
JP5135305B2 (ja) * 2009-08-31 2013-02-06 東京瓦斯株式会社 埋設パイプラインのカソード防食管理システム及びカソード防食管理方法

Also Published As

Publication number Publication date
JPS55152894U (OSRAM) 1980-11-04

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