GB1521359A - Devices for transmitting electrical signals in regions having an explosion risk - Google Patents

Devices for transmitting electrical signals in regions having an explosion risk

Info

Publication number
GB1521359A
GB1521359A GB41315/76A GB4131576A GB1521359A GB 1521359 A GB1521359 A GB 1521359A GB 41315/76 A GB41315/76 A GB 41315/76A GB 4131576 A GB4131576 A GB 4131576A GB 1521359 A GB1521359 A GB 1521359A
Authority
GB
United Kingdom
Prior art keywords
explosion risk
cable
regions
devices
electrical signals
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
GB41315/76A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1521359A publication Critical patent/GB1521359A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G08C15/06Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Emergency Alarm Devices (AREA)
GB41315/76A 1975-10-08 1976-10-05 Devices for transmitting electrical signals in regions having an explosion risk Expired GB1521359A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO753392A NO753392L (enExample) 1975-10-08 1975-10-08

Publications (1)

Publication Number Publication Date
GB1521359A true GB1521359A (en) 1978-08-16

Family

ID=19882485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41315/76A Expired GB1521359A (en) 1975-10-08 1976-10-05 Devices for transmitting electrical signals in regions having an explosion risk

Country Status (4)

Country Link
DE (1) DE2644955A1 (enExample)
GB (1) GB1521359A (enExample)
NO (1) NO753392L (enExample)
SE (1) SE7611053L (enExample)

Also Published As

Publication number Publication date
SE7611053L (sv) 1977-04-09
NO753392L (enExample) 1977-04-13
DE2644955A1 (de) 1977-04-21

Similar Documents

Publication Publication Date Title
GB1456102A (en) Intrusion detection system
ES8705628A1 (es) Un aparato sensor para medir impurezas corrosivas en un fluido.
ES8506905A1 (es) Una instalacion y un metodo para detectar la proximidad de un objeto a una linea de energia electrica de corriente alterna
AU591894B2 (en) Vibration-sensitive transducer
GB2020042B (en) Monitoring rate of change of an electrical signal
GB1121720A (en) Control and measuring system for high voltage electric power transmission systems
GB1521359A (en) Devices for transmitting electrical signals in regions having an explosion risk
EP0144774A3 (en) Audiotactile communication system
JPS5585156A (en) Protective unit of transmission system
IT8422757A0 (it) Sistema per la trasmissione bidirezionale di segnali elettrici su una linea conduttrice e strumento indicatore incorporante un tale sistema.
JPS5744356A (en) Ais signal detecting circuit
GB1297628A (enExample)
GB1091372A (en) Safety remote control system for a motor or plurality of motors
GB1056881A (en) Electrical relays
GB1438334A (en) System for monitoring current in a high-voltage line
JPS51147125A (en) Power signal monitor between two devices
JPS53131706A (en) Automatic telephone exchange system
JPS53140551A (en) Protective circuit breaker
JPS5723352A (en) Signal transmission system
JPS52154981A (en) Remote monitoring control system
JPS56117441A (en) Suppressing method for undesired electric wave in information collecting system
JPS524723A (en) Multiple signal transmission system
JPS56143739A (en) Data remote monitoring system
JPS52143709A (en) Signal synthesizing circuit
FR2358064A1 (fr) Dispositif d'observation permanente de lignes telephoniques de securite

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee