EP0212983A3 - Electrical switch - Google Patents

Electrical switch Download PDF

Info

Publication number
EP0212983A3
EP0212983A3 EP86306520A EP86306520A EP0212983A3 EP 0212983 A3 EP0212983 A3 EP 0212983A3 EP 86306520 A EP86306520 A EP 86306520A EP 86306520 A EP86306520 A EP 86306520A EP 0212983 A3 EP0212983 A3 EP 0212983A3
Authority
EP
European Patent Office
Prior art keywords
contacts
contact
tacts
con
consist
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Withdrawn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
EP86306520A
Other languages
German (de)
French (fr)
Other versions
EP0212983A2 (en
Inventor
Terence Victor Mcghie
Douglas Eaves
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Publication of EP0212983A2 publication Critical patent/EP0212983A2/en
Publication of EP0212983A3 publication Critical patent/EP0212983A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/40—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Contacts (AREA)
  • Breakers (AREA)

Abstract

A switch includes first and second contacts (1), (9), each having a substantially rectangular contact area, at least one of the contacts (9) being movable between an open and closed position. The contact area of each of the contacts is provided with contact regions separated by arc rooting zones of high electric field intensity. The contacts are disposed such that on separation thereof each of the contact regions (7; 52, 53, 54) of the first contact (1) are separated from those (10, 11, 12; 56, 57, 58) of the second contact (9) substantially simultane­ ously. In the event of arcing occuring on separation of the con­ tacts, the arc rooting zones are such that the arcing is en­ couraged to follow a multiplicity of paths between the con­ tacts. The contacts may consist of finger portions (7) with slots (4), (5) therebetween. Alternatively the arc rooting zones may consist of projections (55) or holes (51).
EP86306520A 1985-08-23 1986-08-22 Electrical switch Withdrawn EP0212983A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8521140 1985-08-23
GB858521140A GB8521140D0 (en) 1985-08-23 1985-08-23 Electrical switch

Publications (2)

Publication Number Publication Date
EP0212983A2 EP0212983A2 (en) 1987-03-04
EP0212983A3 true EP0212983A3 (en) 1989-05-24

Family

ID=10584222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86306520A Withdrawn EP0212983A3 (en) 1985-08-23 1986-08-22 Electrical switch

Country Status (7)

Country Link
EP (1) EP0212983A3 (en)
JP (1) JPS6255815A (en)
AU (1) AU6111386A (en)
ES (1) ES2001561A6 (en)
FI (1) FI863412A (en)
GB (2) GB8521140D0 (en)
ZA (1) ZA866251B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1798375A (en) * 1925-05-29 1931-03-31 Condit Electrical Mfg Corp Contact structure for electric switches
FR1000821A (en) * 1949-11-22 1952-02-18 Ericsson Telefon Sfe Fse Method and device for ensuring certain contact in telecommunications apparatus
FR1170621A (en) * 1957-04-04 1959-01-16 Kienzle Uhrenfabriken Ag Electrical contact device
US3420971A (en) * 1964-06-22 1969-01-07 Telemecanique Electrique Circuit breaker apparatus
DE2657735A1 (en) * 1976-12-20 1978-06-22 Hans Neuling Electric circuit breaker contacts - have ventilation grooves cut in opposite contact surfaces to reduce wear and damage to contacts and associated systems
DE3128929A1 (en) * 1981-07-22 1983-05-11 H. Kuhnke Gmbh Kg, 2427 Malente Contact arrangement for switching apparatuses

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB247665A (en) * 1924-11-21 1926-02-22 British Thomson Houston Co Ltd Laminated terminals for electric switches and the like
DE1063676B (en) * 1955-06-30 1959-08-20 Georg Kunz Hybrid contact device for single or multi-pole, easily loesba electrical connections

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1798375A (en) * 1925-05-29 1931-03-31 Condit Electrical Mfg Corp Contact structure for electric switches
FR1000821A (en) * 1949-11-22 1952-02-18 Ericsson Telefon Sfe Fse Method and device for ensuring certain contact in telecommunications apparatus
FR1170621A (en) * 1957-04-04 1959-01-16 Kienzle Uhrenfabriken Ag Electrical contact device
US3420971A (en) * 1964-06-22 1969-01-07 Telemecanique Electrique Circuit breaker apparatus
DE2657735A1 (en) * 1976-12-20 1978-06-22 Hans Neuling Electric circuit breaker contacts - have ventilation grooves cut in opposite contact surfaces to reduce wear and damage to contacts and associated systems
DE3128929A1 (en) * 1981-07-22 1983-05-11 H. Kuhnke Gmbh Kg, 2427 Malente Contact arrangement for switching apparatuses

Also Published As

Publication number Publication date
ES2001561A6 (en) 1988-06-01
FI863412A (en) 1987-02-24
FI863412A0 (en) 1986-08-22
AU6111386A (en) 1987-02-26
GB8620476D0 (en) 1986-10-01
GB8521140D0 (en) 1985-10-02
EP0212983A2 (en) 1987-03-04
GB2179797A (en) 1987-03-11
JPS6255815A (en) 1987-03-11
ZA866251B (en) 1987-05-27

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: EAVES, DOUGLAS

Inventor name: MCGHIE, TERENCE VICTOR