GB2021309A - Over-voltage protection devices - Google Patents

Over-voltage protection devices

Info

Publication number
GB2021309A
GB2021309A GB7904437A GB7904437A GB2021309A GB 2021309 A GB2021309 A GB 2021309A GB 7904437 A GB7904437 A GB 7904437A GB 7904437 A GB7904437 A GB 7904437A GB 2021309 A GB2021309 A GB 2021309A
Authority
GB
United Kingdom
Prior art keywords
electrodes
protection devices
envelope
over
junction
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.)
Withdrawn
Application number
GB7904437A
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.)
Italtel SpA
Original Assignee
Societa Italiana Telecomunicazioni Siemens SpA
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 Societa Italiana Telecomunicazioni Siemens SpA filed Critical Societa Italiana Telecomunicazioni Siemens SpA
Publication of GB2021309A publication Critical patent/GB2021309A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00—Details of spark gaps
    • H01T1/20—Means for starting arc or facilitating ignition of spark gap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes

Landscapes

  • Emergency Protection Circuit Devices (AREA)
GB7904437A 1978-02-16 1979-02-08 Over-voltage protection devices Withdrawn GB2021309A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT20266/78A IT1108971B (it) 1978-02-16 1978-02-16 Dispositivo per la protezione da sovratensioni

Publications (1)

Publication Number Publication Date
GB2021309A true GB2021309A (en) 1979-11-28

Family

ID=11165270

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7904437A Withdrawn GB2021309A (en) 1978-02-16 1979-02-08 Over-voltage protection devices

Country Status (9)

Country Link
BE (1) BE870357R (pt)
BR (1) BR7806031A (pt)
ES (1) ES476481A1 (pt)
FR (1) FR2417849A2 (pt)
GB (1) GB2021309A (pt)
IT (1) IT1108971B (pt)
NL (1) NL7805301A (pt)
NO (1) NO790296L (pt)
SE (1) SE7901200L (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122807A (en) * 1982-06-24 1984-01-18 English Electric Valve Co Ltd Impulse protection device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB353924A (en) * 1930-01-29 1931-07-29 Edison Swan Electric Co Ltd Improvements in protecting devices for electric circuits
CH313669A (de) * 1953-07-23 1956-04-30 Bbc Brown Boveri & Cie Vorionisierte Funkenstrecke, insbesondere für Überspannungsableiter
US2830216A (en) * 1954-08-02 1958-04-08 Elsi L Elettronica Sicula S P Multiple discharger particularly for protecting telecommunication nets and the method for manufacturing it
US3328632A (en) * 1965-08-16 1967-06-27 English Electric Co Ltd Vacuum-protective spark gap with trigger electrode
DE2346174B2 (de) * 1973-09-13 1977-04-07 Siemens AG, 1000 Berlin und 8000 München Ueberspannungsableiter
IT1115469B (it) * 1977-05-06 1986-02-03 Sits Soc It Telecom Siemens Dispositivo ad effetto di campo per la protezione da sovratensioni

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122807A (en) * 1982-06-24 1984-01-18 English Electric Valve Co Ltd Impulse protection device

Also Published As

Publication number Publication date
IT1108971B (it) 1985-12-16
IT7820266A0 (it) 1978-02-16
NO790296L (no) 1979-08-17
SE7901200L (sv) 1979-08-17
ES476481A1 (es) 1979-04-16
BR7806031A (pt) 1980-03-25
NL7805301A (nl) 1979-08-20
BE870357R (fr) 1979-01-02
FR2417849A2 (fr) 1979-09-14

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)