GB1545187A - Switching device combination - Google Patents

Switching device combination

Info

Publication number
GB1545187A
GB1545187A GB22602/77A GB2260277A GB1545187A GB 1545187 A GB1545187 A GB 1545187A GB 22602/77 A GB22602/77 A GB 22602/77A GB 2260277 A GB2260277 A GB 2260277A GB 1545187 A GB1545187 A GB 1545187A
Authority
GB
United Kingdom
Prior art keywords
switching device
device combination
combination
switching
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
GB22602/77A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1545187A publication Critical patent/GB1545187A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/04—Distributing means for power supply in mines
    • E21F17/06—Distributing electric power; Cable networks; Conduits for cables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/40—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect
    • G01R13/404—Arrangements for displaying electric variables or waveforms using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect for discontinuous display, i.e. display of discrete values

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Power Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Breakers (AREA)
  • Measuring Fluid Pressure (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Distribution Board (AREA)
GB22602/77A 1976-06-25 1977-05-27 Switching device combination Expired GB1545187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2629226A DE2629226C3 (en) 1976-06-25 1976-06-25 Measuring device for flameproof switchgear assemblies

Publications (1)

Publication Number Publication Date
GB1545187A true GB1545187A (en) 1979-05-02

Family

ID=5981776

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22602/77A Expired GB1545187A (en) 1976-06-25 1977-05-27 Switching device combination

Country Status (4)

Country Link
DE (1) DE2629226C3 (en)
FR (1) FR2356145A1 (en)
GB (1) GB1545187A (en)
ZA (1) ZA773809B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3008974C2 (en) * 1980-03-08 1985-10-03 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Electric control device for underground longwall structures
DE3035835C2 (en) * 1980-09-19 1989-02-23 Siemens AG, 1000 Berlin und 8000 München Flameproof housing with a rectangular cover

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501345A (en) * 1947-06-02 1950-03-21 Westinghouse Electric Corp Metal-clad switchgear
FR1259268A (en) * 1960-06-09 1961-04-21 Heliowatt Werke Elek Zitats Ag Frame intended for viewing windows of electrical equipment boxes or equivalent devices
FR1354661A (en) * 1963-04-24 1964-03-06 Bassani Spa Electrical apparatus with hermetically sealed external box, more particularly for open air installations
GB1374991A (en) * 1971-03-25 1974-11-20 Vernon Instr Co Ltd Signal indicator systems
DE2242973C3 (en) * 1972-08-31 1978-08-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Flameproof housing for accommodating electrical devices
DE2242974A1 (en) * 1972-08-31 1974-03-21 Siemens Ag PRESSURE-RESISTANT HOUSING EQUIPPED WITH ELECTRICAL DEVICES
US3885230A (en) * 1973-05-24 1975-05-20 Marconi Co Canada System for improving the reliability of indicator arrangements
DE2331660B2 (en) * 1973-06-22 1977-02-03 Robert Bosch Gmbh, 7000 Stuttgart CIRCUIT ARRANGEMENT FOR DISPLAYING DC VOLTAGE USING ELECTRO-OPTICAL DISPLAY ELEMENTS
AT342123B (en) * 1974-02-05 1978-03-10 Siemens Ag Oesterreich CIRCUIT FOR A CHAIN OF LIGHTING DIODES USING AS A DISPLAY UNIT
DE2409995B2 (en) * 1974-02-28 1980-06-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen Display device for changing switching states of an encapsulated combination of electrical switching devices
GB1489072A (en) * 1975-02-17 1977-10-19 Ind Control Services Ltd Intrinsically safe systems

Also Published As

Publication number Publication date
DE2629226C3 (en) 1981-02-19
FR2356145A1 (en) 1978-01-20
DE2629226A1 (en) 1977-12-29
ZA773809B (en) 1979-04-25
FR2356145B1 (en) 1982-02-19
DE2629226B2 (en) 1978-04-27

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Legal Events

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