EP0302753A2 - Schmelzsicherungsanlagen für elektrische Systeme - Google Patents

Schmelzsicherungsanlagen für elektrische Systeme Download PDF

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Publication number
EP0302753A2
EP0302753A2 EP88307270A EP88307270A EP0302753A2 EP 0302753 A2 EP0302753 A2 EP 0302753A2 EP 88307270 A EP88307270 A EP 88307270A EP 88307270 A EP88307270 A EP 88307270A EP 0302753 A2 EP0302753 A2 EP 0302753A2
Authority
EP
European Patent Office
Prior art keywords
enclosure
cover
fuse assembly
fuse
fuselink
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Withdrawn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
EP88307270A
Other languages
English (en)
French (fr)
Other versions
EP0302753A3 (de
Inventor
Alfred G. Pratt
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.)
Eaton MEDC Ltd
Original Assignee
WINSTON ENGINEERING Co Ltd
WINSTON ENG CO Ltd
Manufacturing Electrical Design Consultants 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
Application filed by WINSTON ENGINEERING Co Ltd, WINSTON ENG CO Ltd, Manufacturing Electrical Design Consultants Ltd filed Critical WINSTON ENGINEERING Co Ltd
Publication of EP0302753A2 publication Critical patent/EP0302753A2/de
Publication of EP0302753A3 publication Critical patent/EP0302753A3/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof
    • H01H85/2045—Mounting means or insulating parts of the base, e.g. covers, casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/0013—Means for preventing damage, e.g. by ambient influences to the fuse
    • H01H85/0021—Means for preventing damage, e.g. by ambient influences to the fuse water or dustproof devices
    • H01H85/0026—Means for preventing damage, e.g. by ambient influences to the fuse water or dustproof devices casings for the fuse and its base contacts

Definitions

  • This invention relates to electrical systems and, in particular, fuse assemblies therefor.
  • An object of the present invention is to provide an alternative fuse assembly for use in hazardous atmospheres which does not suffer from the disadvantage discussed above.
  • a fuse assembly for use in harzardous atmospheres comprises an elongate enclosure which is explosion-proof/flame-proof and dimensioned to accept a specified size of fuselink, the enclosure having an opening through which the fuse­link is fitted closable by a tightly fitting cover, electrical connectors extending through end walls of the enclosure and supported in spaced relationship within the enclosure and fixing means whereby the terminals of the fuselink can be directly and fixedly connected to respective connectors.
  • the cover is hinged at one end to the enclosure and has fixing means at the other end.
  • the enclosure and cover would be moulded from a suitable plastics material and would be of a thickness sufficient to ensure the integrity of the enclosure should an internal spark or explosion occur.
  • the cover 2 is dimensioned and shaped to correspond to the wall of the case defining the opening 3 and is hinged at one end via integral bosses 9 and 10 in the cover and case respectively and a pin 11 therethrough. To prevent removal of the pin 11 it is inserted fully within a blind hole, through the parts 9 and 10 and the insert end is then sealed with expoxy resin.
  • the other end of the cover is provided with a captive screw 12 which can be screwed into a threaded aperture provided in a thickening 13 of the respective end wall, and thereby tightened down onto the case.
  • the fuselink 6 is fixedly connected via its terminals 6 directly to the heads 5 of the connectors 4 via fixing screws 14.
  • the side walls of the enclosure 1 have spacer lugs 15 formed therein so that a number of fuse assemblies can be mounted side-by-side on a fuseboard, or in a further enclosure with a miniumum space defined between them. Conveniently, they may be fitted squarely together on the fuseboard by providing a DIN rail on which the assemblies are mounted via a shaped slot 16 in the bottom wall of each enclosure. To retain each enclosure in position on the DIN rail, a plastics clip 17 is provided which is slidably mounted in a bore 18 opening into the groove 16.

Landscapes

  • Fuses (AREA)
EP88307270A 1987-08-07 1988-08-05 Schmelzsicherungsanlagen für elektrische Systeme Withdrawn EP0302753A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8718804 1987-08-07
GB878718804A GB8718804D0 (en) 1987-08-07 1987-08-07 Fuse assemblies

Publications (2)

Publication Number Publication Date
EP0302753A2 true EP0302753A2 (de) 1989-02-08
EP0302753A3 EP0302753A3 (de) 1990-05-16

Family

ID=10622004

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88307270A Withdrawn EP0302753A3 (de) 1987-08-07 1988-08-05 Schmelzsicherungsanlagen für elektrische Systeme

Country Status (2)

Country Link
EP (1) EP0302753A3 (de)
GB (2) GB8718804D0 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101667524B1 (ko) * 2014-01-24 2016-10-19 주식회사 엘지화학 퓨즈 장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1463525A1 (de) * 1963-05-31 1970-01-08 Siemens Ag Niederspannungsschmelzsicherung fuer explosions- und schlagwettergefaehrdete Betriebe,insbesondere fuer Spannungswandler in Hochspannungsschaltanlagen in Untertagebetrieben des Bergbaues
DE2052040A1 (de) * 1970-10-23 1971-12-02 Stahl R Fa Sicherungen, Sicherungsautomaten u. dergl. in elektrischen Steuerungen und Lichtverteilungen
US3983460A (en) * 1975-04-02 1976-09-28 Westinghouse Electric Corporation Enclosed circuit interrupter with improved fuse assembly
US4060785A (en) * 1976-09-13 1977-11-29 Kearney-National Inc. Enclosing structure for a high voltage electric fuse
GB2176664A (en) * 1985-06-13 1986-12-31 Bbc Brown Boveri & Cie Explosion-protected single- or multi-pole low-voltage HBC fuse

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE798340A (fr) * 1972-04-21 1973-08-16 Krone Gmbh Porte-fusibles pour appareillage haute tension a isolement par resine coulee et a manoeuvre monopolaire

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1463525A1 (de) * 1963-05-31 1970-01-08 Siemens Ag Niederspannungsschmelzsicherung fuer explosions- und schlagwettergefaehrdete Betriebe,insbesondere fuer Spannungswandler in Hochspannungsschaltanlagen in Untertagebetrieben des Bergbaues
DE2052040A1 (de) * 1970-10-23 1971-12-02 Stahl R Fa Sicherungen, Sicherungsautomaten u. dergl. in elektrischen Steuerungen und Lichtverteilungen
US3983460A (en) * 1975-04-02 1976-09-28 Westinghouse Electric Corporation Enclosed circuit interrupter with improved fuse assembly
US4060785A (en) * 1976-09-13 1977-11-29 Kearney-National Inc. Enclosing structure for a high voltage electric fuse
GB2176664A (en) * 1985-06-13 1986-12-31 Bbc Brown Boveri & Cie Explosion-protected single- or multi-pole low-voltage HBC fuse

Also Published As

Publication number Publication date
GB2207821B (en) 1991-09-11
GB2207821A (en) 1989-02-08
GB8718804D0 (en) 1987-09-16
EP0302753A3 (de) 1990-05-16
GB8818625D0 (en) 1988-09-07

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