JPH01105337U - - Google Patents

Info

Publication number
JPH01105337U
JPH01105337U JP19835387U JP19835387U JPH01105337U JP H01105337 U JPH01105337 U JP H01105337U JP 19835387 U JP19835387 U JP 19835387U JP 19835387 U JP19835387 U JP 19835387U JP H01105337 U JPH01105337 U JP H01105337U
Authority
JP
Japan
Prior art keywords
varistor
varistors
input line
power
end connected
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
JP19835387U
Other languages
English (en)
Other versions
JPH062438Y2 (ja
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 filed Critical
Priority to JP1987198353U priority Critical patent/JPH062438Y2/ja
Publication of JPH01105337U publication Critical patent/JPH01105337U/ja
Application granted granted Critical
Publication of JPH062438Y2 publication Critical patent/JPH062438Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Thermistors And Varistors (AREA)
  • Emergency Protection Circuit Devices (AREA)

Description

【図面の簡単な説明】
第1図は本考案の実施例を示す回路図、第2図
は従来例の回路図である。 1……TEL(電話機回路)、2……PS(電
源部)、3,4……入力線、L,L……線路
端子、AC,AC……電源端子、ACE……
接地端子、VR〜VR……バリスタ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 交流電源の各入力線間へ接続された低定格電圧
    を有する第1のバリスタと、前記各入力線の各々
    へ一端が各個に接続されかつ他端が共通接続され
    た前記第1のバリスタより高い定格電圧を有する
    第2および第3のバリスタとを備える交流電源式
    公衆電話機において、前記交流電源の各入力線の
    各々へ一端が接続されかつ他端が共通接続された
    前記第1のバリスタよりも更に低い定格電圧を有
    する第4および第5のバリスタと、該バリスタの
    前記共通接続点へ接続された接地端子とを設けた
    ことを特徴とする交流電源式公衆電話機の雷害防
    止回路。
JP1987198353U 1987-12-26 1987-12-26 交流電源式公衆電話機の雷害防止回路 Expired - Lifetime JPH062438Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987198353U JPH062438Y2 (ja) 1987-12-26 1987-12-26 交流電源式公衆電話機の雷害防止回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987198353U JPH062438Y2 (ja) 1987-12-26 1987-12-26 交流電源式公衆電話機の雷害防止回路

Publications (2)

Publication Number Publication Date
JPH01105337U true JPH01105337U (ja) 1989-07-17
JPH062438Y2 JPH062438Y2 (ja) 1994-01-19

Family

ID=31488868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987198353U Expired - Lifetime JPH062438Y2 (ja) 1987-12-26 1987-12-26 交流電源式公衆電話機の雷害防止回路

Country Status (1)

Country Link
JP (1) JPH062438Y2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019068365A (ja) * 2017-10-04 2019-04-25 キヤノン株式会社 通信装置
CN109888760B (zh) * 2019-03-12 2023-10-20 北京山图有源防雷科技有限公司 一种电气设备的安全保护装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5267928U (ja) * 1975-11-17 1977-05-19
JPS5928836A (ja) * 1982-08-05 1984-02-15 日本電信電話株式会社 縦サ−ジ防護用筐体接地回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5267928U (ja) * 1975-11-17 1977-05-19
JPS5928836A (ja) * 1982-08-05 1984-02-15 日本電信電話株式会社 縦サ−ジ防護用筐体接地回路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019068365A (ja) * 2017-10-04 2019-04-25 キヤノン株式会社 通信装置
CN109888760B (zh) * 2019-03-12 2023-10-20 北京山图有源防雷科技有限公司 一种电气设备的安全保护装置

Also Published As

Publication number Publication date
JPH062438Y2 (ja) 1994-01-19

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