GB917892A - Improvements in or relating to electrical fuses - Google Patents

Improvements in or relating to electrical fuses

Info

Publication number
GB917892A
GB917892A GB19138/60A GB1913860A GB917892A GB 917892 A GB917892 A GB 917892A GB 19138/60 A GB19138/60 A GB 19138/60A GB 1913860 A GB1913860 A GB 1913860A GB 917892 A GB917892 A GB 917892A
Authority
GB
United Kingdom
Prior art keywords
liquid
fusible
current
fuse
relating
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
GB19138/60A
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.)
EK Cole Ltd
Original Assignee
EK Cole 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 EK Cole Ltd filed Critical EK Cole Ltd
Priority to GB19138/60A priority Critical patent/GB917892A/en
Priority to US113456A priority patent/US3194925A/en
Publication of GB917892A publication Critical patent/GB917892A/en
Expired legal-status Critical Current

Links

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
    • H01H85/47—Means for cooling
    • 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
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/046—Fuses formed as printed circuits
    • 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
    • H01H85/38—Means for extinguishing or suppressing arc
    • H01H85/40—Means for extinguishing or suppressing arc using an arc-extinguishing liquid
    • 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
    • H01H85/0039—Means for influencing the rupture process of the fusible element
    • H01H85/0043—Boiling of a material associated with the fusible element, e.g. surrounding fluid

Landscapes

  • Fuses (AREA)

Abstract

917,892. Fusible cut-outs. COLE Ltd., E. K., and COX, V. J. May 26, 1961 [May 31, 1960], No. 19138/60. Class 38 (1). The fusible element 1 of an electric fuse is cooled mainly by vaporization of the surrounding dielectric liquid 5 and as the current in the element approaches the rated fusing current bubbles of vapour are formed around the element and virtually inhibit further cooling, thus allowing the element to gain heat quickly and melt. The liquid may be distilled water, with or without antifreeze, methyl alcohol or a liquid fluorocarbon. The element 1 comprises a thin film of silver or tin deposited on a mica sheet. The fuse advantageously protects semi-conductor devices against sudden large overloads.
GB19138/60A 1960-05-31 1960-05-31 Improvements in or relating to electrical fuses Expired GB917892A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB19138/60A GB917892A (en) 1960-05-31 1960-05-31 Improvements in or relating to electrical fuses
US113456A US3194925A (en) 1960-05-31 1961-05-29 Electrical fuses immersed in a dielectric fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19138/60A GB917892A (en) 1960-05-31 1960-05-31 Improvements in or relating to electrical fuses

Publications (1)

Publication Number Publication Date
GB917892A true GB917892A (en) 1963-02-06

Family

ID=10124382

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19138/60A Expired GB917892A (en) 1960-05-31 1960-05-31 Improvements in or relating to electrical fuses

Country Status (2)

Country Link
US (1) US3194925A (en)
GB (1) GB917892A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ302392B6 (en) * 2005-03-01 2011-04-27 Fojtík@Vincenc Low voltage safety fuse

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445798A (en) * 1967-08-04 1969-05-20 Dieter R Lohrmann Short-time melting fuse
US3710295A (en) * 1971-06-01 1973-01-09 Gen Electric Current limiting fuse
US3818409A (en) * 1972-05-17 1974-06-18 J Pastors Electric circuit breaking fuse

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2077429A (en) * 1937-04-20 G f mcmahon
US737254A (en) * 1902-09-09 1903-08-25 Stanley Electric Mfg Co Fuse.
US919563A (en) * 1905-05-04 1909-04-27 Gen Electric Submerged fuse.
USRE20962E (en) * 1933-01-23 1939-01-03 Circuit interrupter
GB499816A (en) * 1937-07-26 1939-01-26 Allen West & Co Ltd Improvements in or relating to electric circuit interrupters
US2223726A (en) * 1937-10-02 1940-12-03 Westinghouse Electric & Mfg Co Protective device for electrical apparatus and systems
US2159649A (en) * 1938-01-19 1939-05-23 Mackay Radio & Telegraph Compa Circuit arrangement for reducing transients
US2326031A (en) * 1942-05-20 1943-08-03 Westinghouse Electric & Mfg Co Protective device for electrical apparatus and systems
US2439931A (en) * 1944-01-29 1948-04-20 Westinghouse Electric Corp Protective fuse for electrical apparatus immersed in a dielectric liquid
US2509935A (en) * 1946-04-13 1950-05-30 Mcgraw Electric Co Protective means for electrical instrumentalities
US2864917A (en) * 1954-12-23 1958-12-16 Edward V Sundt Short-time delay fuse
US2921250A (en) * 1955-06-13 1960-01-12 Chase Shawmut Co Coordinated static power rectifiers and current-limiting fuses
US2941059A (en) * 1957-09-16 1960-06-14 Gen Motors Corp Printed circuit type fuse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ302392B6 (en) * 2005-03-01 2011-04-27 Fojtík@Vincenc Low voltage safety fuse

Also Published As

Publication number Publication date
US3194925A (en) 1965-07-13

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