GB445902A - Improvements in high potential fuses - Google Patents
Improvements in high potential fusesInfo
- Publication number
- GB445902A GB445902A GB669/35A GB66935A GB445902A GB 445902 A GB445902 A GB 445902A GB 669/35 A GB669/35 A GB 669/35A GB 66935 A GB66935 A GB 66935A GB 445902 A GB445902 A GB 445902A
- Authority
- GB
- United Kingdom
- Prior art keywords
- section
- cross
- current
- amperes
- jan
- 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
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
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/055—Fusible members
- H01H85/08—Fusible members characterised by the shape or form of the fusible member
- H01H85/10—Fusible members characterised by the shape or form of the fusible member with constriction for localised fusing
Landscapes
- Fuses (AREA)
Abstract
445,902. Fusible cut-outs. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Jan. 8, 1935, Nos. 669 and 670. Convention dates, Jan. 8, 1934 and Dec. 13, 1934. [Class 38 (i)] A fuse element in a high - potential circuit comprises a portion of uniform cross-section of a length not substantially greater than is sufficient to cut out the limiting current, e.g. 15 amperes, determined by this cross-section, and a further portion of increased cross-section of which a sufficient amount melts on a heavy excess-current, e.g. 1000 amperes, to prevent persistence of the arc. The element may taper from both ends, Fig. 1, or be of step form, Fig. 2, or the portion of increased section may be formed by wrapping a wire 13, Fig. 3. The change in cross-section may also be produced by electrolytic reinforcement or weakening. The Specification contains a table giving suitable dimensions for an element of silver-wire for different values of current and potential.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE445902X | 1934-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB445902A true GB445902A (en) | 1936-04-21 |
Family
ID=6537812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB669/35A Expired GB445902A (en) | 1934-01-08 | 1935-01-08 | Improvements in high potential fuses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB445902A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3569889A (en) * | 1968-10-17 | 1971-03-09 | Mitsubishi Electric Corp | Current-limiting fusable device with fusable elements of stepped or graduated cross-sectional areas and having dents |
| US20140043134A1 (en) * | 2011-04-27 | 2014-02-13 | Yazaki Corporation | Fuse circuit assembly |
-
1935
- 1935-01-08 GB GB669/35A patent/GB445902A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3569889A (en) * | 1968-10-17 | 1971-03-09 | Mitsubishi Electric Corp | Current-limiting fusable device with fusable elements of stepped or graduated cross-sectional areas and having dents |
| US20140043134A1 (en) * | 2011-04-27 | 2014-02-13 | Yazaki Corporation | Fuse circuit assembly |
| US9484175B2 (en) * | 2011-04-27 | 2016-11-01 | Yazaki Corporation | Fuse circuit assembly |
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