JPS61197569U - - Google Patents

Info

Publication number
JPS61197569U
JPS61197569U JP8013885U JP8013885U JPS61197569U JP S61197569 U JPS61197569 U JP S61197569U JP 8013885 U JP8013885 U JP 8013885U JP 8013885 U JP8013885 U JP 8013885U JP S61197569 U JPS61197569 U JP S61197569U
Authority
JP
Japan
Prior art keywords
circuit
connection
pair
power supply
detection
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
JP8013885U
Other languages
Japanese (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 JP8013885U priority Critical patent/JPS61197569U/ja
Publication of JPS61197569U publication Critical patent/JPS61197569U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Fire Alarms (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図および第２図は、この考案による断線検
出装置の一実施例における外観図および回路図、
第３図は、従来の導通試験回路を受信機に内蔵し
た火災警報設備の回路図である。 Ｅ…電源、ＣＥ…コンデンサ、ＲＥ…抵抗、Ｌ
…一対の線路、２，３…一対の接続端子、Ｔ１…
接続回路構成部、Ｔ２，Ｔ３，Ｒ１，ＺＤ，ＬＥ
Ｄ…検出表示回路構成部、ＰＧ…駆動回路として
の発振器。 1 and 2 are an external view and a circuit diagram of an embodiment of the disconnection detection device according to this invention,
FIG. 3 is a circuit diagram of a fire alarm system in which a conventional continuity test circuit is built into a receiver. E...power supply, CE...capacitor, RE...resistance, L
...A pair of lines, 2, 3...A pair of connection terminals, T1 ...
Connection circuit component, T 2 , T 3 , R 1 , ZD, LE
D...detection display circuit component, PG...oscillator as a drive circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電源と、終端にコンデンサと抵抗よりなる直列
回路を接続した一対の線路が接続される一対の接
続端子と、該接続端子と上記電源とを接続する接
続回路と、上記接続端子間を流れる上記コンデン
サからの放電電流を検出して表示を行なう検出表
示回路と、上記接続回路と検出表示回路とを交互
に駆動する駆動回路とを一体に収容してなる線路
の断線検出装置。 A power supply, a pair of connection terminals to which a pair of lines each having a series circuit connected to a capacitor and a resistor at the end thereof are connected, a connection circuit that connects the connection terminal and the power supply, and the capacitor flowing between the connection terminals. A line breakage detection device which integrally houses a detection and display circuit that detects and displays a discharge current from a line, and a drive circuit that alternately drives the connection circuit and the detection and display circuit.
JP8013885U 1985-05-30 1985-05-30 Pending JPS61197569U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8013885U JPS61197569U (en) 1985-05-30 1985-05-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8013885U JPS61197569U (en) 1985-05-30 1985-05-30

Publications (1)

Publication Number Publication Date
JPS61197569U true JPS61197569U (en) 1986-12-10

Family

ID=30625706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8013885U Pending JPS61197569U (en) 1985-05-30 1985-05-30

Country Status (1)

Country Link
JP (1) JPS61197569U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5915977B2 (en) * 1980-06-16 1984-04-12 住友金属工業株式会社 Seamless steel for pipes with excellent corrosion resistance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5915977B2 (en) * 1980-06-16 1984-04-12 住友金属工業株式会社 Seamless steel for pipes with excellent corrosion resistance

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