GB2160721B - Protection of electrical/electronic equipment - Google Patents

Protection of electrical/electronic equipment

Info

Publication number
GB2160721B
GB2160721B GB08512706A GB8512706A GB2160721B GB 2160721 B GB2160721 B GB 2160721B GB 08512706 A GB08512706 A GB 08512706A GB 8512706 A GB8512706 A GB 8512706A GB 2160721 B GB2160721 B GB 2160721B
Authority
GB
United Kingdom
Prior art keywords
electrical
protection
electronic equipment
electronic
equipment
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
GB08512706A
Other versions
GB8512706D0 (en
GB2160721A (en
Inventor
David William Hawkes
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.)
Measurement Technology Ltd
Original Assignee
Measurement Technology Ltd
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
Priority claimed from GB848423351A external-priority patent/GB8423351D0/en
Application filed by Measurement Technology Ltd filed Critical Measurement Technology Ltd
Priority to GB08512706A priority Critical patent/GB2160721B/en
Publication of GB8512706D0 publication Critical patent/GB8512706D0/en
Publication of GB2160721A publication Critical patent/GB2160721A/en
Application granted granted Critical
Publication of GB2160721B publication Critical patent/GB2160721B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • H02H9/026—Current limitation using PTC resistors, i.e. resistors with a large positive temperature coefficient
GB08512706A 1984-05-19 1985-05-20 Protection of electrical/electronic equipment Expired GB2160721B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08512706A GB2160721B (en) 1984-05-19 1985-05-20 Protection of electrical/electronic equipment

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8412841 1984-05-19
GB848423351A GB8423351D0 (en) 1984-09-15 1984-09-15 Protection of electrical/electronic equipment
GB08512706A GB2160721B (en) 1984-05-19 1985-05-20 Protection of electrical/electronic equipment

Publications (3)

Publication Number Publication Date
GB8512706D0 GB8512706D0 (en) 1985-06-26
GB2160721A GB2160721A (en) 1985-12-24
GB2160721B true GB2160721B (en) 1987-08-19

Family

ID=27262364

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08512706A Expired GB2160721B (en) 1984-05-19 1985-05-20 Protection of electrical/electronic equipment

Country Status (1)

Country Link
GB (1) GB2160721B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2205457A (en) * 1987-05-27 1988-12-07 Gary John Lusby Electrical surge diverter unit
GB2258570A (en) * 1991-08-08 1993-02-10 British Telecomm Device for protecting high speed communications network from overvoltages
US5436786A (en) * 1992-12-21 1995-07-25 Dairyland Electrical Industries, Inc. Isolator surge protector for DC isolation and AC grounding of cathodically protected systems
DE4423798A1 (en) * 1994-07-01 1996-01-11 Krone Ag Process for the protection of, in particular, telecommunications systems and protective circuit for carrying out the process
CA2183176C (en) * 1995-08-18 2000-10-24 Brian R. Pelly High power dc blocking device for ac and fault current grounding
US5856904A (en) * 1996-11-15 1999-01-05 Dairyland Electrical Industries, Inc. Voltage and current based control and triggering for isolator surge protector
CA2266322C (en) * 1998-04-03 2011-10-25 Wayne Kwok-Wai Wong High current protection circuit for telephone interface
EP0986158A1 (en) * 1998-09-11 2000-03-15 Siemens Building Technologies AG Overvoltage protective device for telephone connection
US6356027B1 (en) 1999-05-07 2002-03-12 Philips Electronics North America Corporation 0-10V dimming interface protection circuit
JP2007312460A (en) * 2006-05-16 2007-11-29 Omron Corp Power supply protection circuit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL258073A (en) * 1960-11-17
DE1437387A1 (en) * 1964-07-03 1968-11-28 Danfoss As Overvoltage protection device on telephone network lines
GB1242673A (en) * 1967-08-18 1971-08-11 English Electric Co Ltd Overvoltage protection circuit
GB1230206A (en) * 1968-11-12 1971-04-28
US3890543A (en) * 1973-09-14 1975-06-17 Telecommunications Ind Low voltage surge protection network
US3934175A (en) * 1973-12-03 1976-01-20 General Semiconductor Industries, Inc. Power surge protection system
US4054830A (en) * 1974-03-25 1977-10-18 Landis Tool Company Regulated power supply
US4099216A (en) * 1976-11-12 1978-07-04 Westinghouse Electric Corp. Fuseless intrinsic safety barrier
US4389695A (en) * 1981-02-09 1983-06-21 Carpenter Jr Roy B Equipment for protecting electronic equipment and personnel against inadvertent occurrence of extended or transient high voltages and method
SE445409B (en) * 1981-12-08 1986-06-16 Porta Systems Corp CURRENT AND VOLTAGE PROTECTION CIRCUIT FOR USE IN CONNECTION WITH A PHONE CORD

Also Published As

Publication number Publication date
GB8512706D0 (en) 1985-06-26
GB2160721A (en) 1985-12-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010520