JPS6412818A - Absorption of overvoltage - Google Patents

Absorption of overvoltage

Info

Publication number
JPS6412818A
JPS6412818A JP16551987A JP16551987A JPS6412818A JP S6412818 A JPS6412818 A JP S6412818A JP 16551987 A JP16551987 A JP 16551987A JP 16551987 A JP16551987 A JP 16551987A JP S6412818 A JPS6412818 A JP S6412818A
Authority
JP
Japan
Prior art keywords
building
power line
communication line
earth
arrester
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
JP16551987A
Other languages
Japanese (ja)
Inventor
Tamio Motomitsu
Takeshi Ideguchi
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
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 Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP16551987A priority Critical patent/JPS6412818A/en
Publication of JPS6412818A publication Critical patent/JPS6412818A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:To protect equipment in a building collectively, by unifying the earthing of the building and by providing lightning arresters between the earthing of lead-in cables of a communication line and a power line to the building. CONSTITUTION:A building 17 is earthed at one point 14, to which an electronic equipment 16 is earthed. A communication line 1 and a power line 2 are connected to an earth 14 respectively through a communication line arrester 6 and a power line arrester 15. The thunder surge breaking into from the communication line 1 and power line 2 flows to the earth 14 through an earthing conductor by the operation of arresters. At this time, as the potential of earth goes up, the potential of the building goes up so that no potential difference will apear. No more voltage than the operating voltage of the arrester will be applied to the equipment inside the building, either.
JP16551987A 1987-07-03 1987-07-03 Absorption of overvoltage Pending JPS6412818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16551987A JPS6412818A (en) 1987-07-03 1987-07-03 Absorption of overvoltage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16551987A JPS6412818A (en) 1987-07-03 1987-07-03 Absorption of overvoltage

Publications (1)

Publication Number Publication Date
JPS6412818A true JPS6412818A (en) 1989-01-17

Family

ID=15813934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16551987A Pending JPS6412818A (en) 1987-07-03 1987-07-03 Absorption of overvoltage

Country Status (1)

Country Link
JP (1) JPS6412818A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0423045U (en) * 1990-06-15 1992-02-25
JP2004254487A (en) * 2003-02-24 2004-09-09 Nippon Kouatsu Electric Co Lightning surge protection method
JP2005176554A (en) * 2003-12-15 2005-06-30 Nippon Telegr & Teleph Corp <Ntt> Outflow lightning surge reduction circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0423045U (en) * 1990-06-15 1992-02-25
JP2004254487A (en) * 2003-02-24 2004-09-09 Nippon Kouatsu Electric Co Lightning surge protection method
JP2005176554A (en) * 2003-12-15 2005-06-30 Nippon Telegr & Teleph Corp <Ntt> Outflow lightning surge reduction circuit

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