JPS51114677A - Contact device - Google Patents

Contact device

Info

Publication number
JPS51114677A
JPS51114677A JP3938675A JP3938675A JPS51114677A JP S51114677 A JPS51114677 A JP S51114677A JP 3938675 A JP3938675 A JP 3938675A JP 3938675 A JP3938675 A JP 3938675A JP S51114677 A JPS51114677 A JP S51114677A
Authority
JP
Japan
Prior art keywords
contact device
contact
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
JP3938675A
Other languages
Japanese (ja)
Inventor
Keiichirou Horiuchi
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP3938675A priority Critical patent/JPS51114677A/en
Publication of JPS51114677A publication Critical patent/JPS51114677A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
    • H01H2001/0026—Means for testing or for inspecting contacts, e.g. wear indicator wherein one or both contacts contain embedded contact wear signal material, e.g. radioactive material being released as soon as the contact wear reaches the embedded layer
JP3938675A 1975-03-31 1975-03-31 Contact device Pending JPS51114677A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3938675A JPS51114677A (en) 1975-03-31 1975-03-31 Contact device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3938675A JPS51114677A (en) 1975-03-31 1975-03-31 Contact device

Publications (1)

Publication Number Publication Date
JPS51114677A true JPS51114677A (en) 1976-10-08

Family

ID=12551556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3938675A Pending JPS51114677A (en) 1975-03-31 1975-03-31 Contact device

Country Status (1)

Country Link
JP (1) JPS51114677A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3021338A1 (en) * 2014-11-14 2016-05-18 Schneider Electric USA, Inc. Contact wear detection by spectral analysis shift

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3021338A1 (en) * 2014-11-14 2016-05-18 Schneider Electric USA, Inc. Contact wear detection by spectral analysis shift

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