GB467496A - Improvements relating to devices for interrupting electric current - Google Patents
Improvements relating to devices for interrupting electric currentInfo
- Publication number
- GB467496A GB467496A GB3146035A GB3146035A GB467496A GB 467496 A GB467496 A GB 467496A GB 3146035 A GB3146035 A GB 3146035A GB 3146035 A GB3146035 A GB 3146035A GB 467496 A GB467496 A GB 467496A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resin
- wool
- silk
- employed
- mechanical strength
- 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
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/38—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes condensation products of aldehydes with amines or amides
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Insulating Bodies (AREA)
- Organic Insulating Materials (AREA)
Abstract
An insulating material suitable for use in situations exposed to electric arcs, under the action of which the material gives off gas or vapour, consists of artificial resin containing nitrogen as a chemical constituent. The material is preferably one having the nitrogen combined with hydrogen in the molecule, for instance a carbamide resin such as those known under the Registered Trade Marks "Pollopas" and "Resopal". In some cases there may be added fillers such as ammonium carbonate, ammonium acetate, ammonium alum, hydrazine compounds, or urea, which may be dissolved in the resin, or incorporated in the colloidal state or in the form of grains. Alternatively, stable metal oxides, of the earth or alkaline earth metals, for example, or fibrous material such as cellulose or asbestos thread, or animal fibres such as hair, wool, silk, leather, skin, or horn may be used as fillers. The resins may be made by moulding or pressing with subsequent heat treating, or by casting, and may be given a metal or other core for mechanical strength. A layer of resin may be applied, before hardening, to supports of hard paper, hard fabric, fibre, or ceramic or other material. When an insulating member with resin filler is employed, the former may comprise fibrous material held together by a binder which is the same or as similar to that used for the protective layer, for example, hard paper or carbamide resin. Rods and tubes may be made by winding paper, cotton, linen, wool, or silk saturated with the resin, and pheno-plast is employed where considerable mechanical strength is necessary. Specification 354,174, [Group V], is referred to.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL53195D NL53195C (en) | 1935-07-03 | ||
| DE1935R0093720 DE690566C (en) | 1935-07-03 | 1935-07-03 | Electric circuit breaker with arcing loescas |
| DER93797D DE713612C (en) | 1935-07-03 | 1935-07-17 | Electric circuit breaker |
| DER93831D DE671284C (en) | 1935-07-03 | 1935-07-23 | Oil-filled electrical apparatus with arcing under oil, especially Schlter |
| DEST2824D DE941439C (en) | 1935-07-03 | 1935-07-31 | Electrical switch with conductive switching fluid |
| DER94209D DE657125C (en) | 1935-07-03 | 1935-09-13 | Electric switch with arc extinguishing by gases and vapors |
| GB3146035A GB467496A (en) | 1935-11-13 | 1935-11-13 | Improvements relating to devices for interrupting electric current |
| FR798333D FR798333A (en) | 1935-07-03 | 1935-11-26 | Electric switch |
| US57940A US2073565A (en) | 1935-07-03 | 1936-01-07 | Electric circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3146035A GB467496A (en) | 1935-11-13 | 1935-11-13 | Improvements relating to devices for interrupting electric current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB467496A true GB467496A (en) | 1937-06-14 |
Family
ID=10323409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3146035A Expired GB467496A (en) | 1935-07-03 | 1935-11-13 | Improvements relating to devices for interrupting electric current |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB467496A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3824025A1 (en) * | 1988-07-15 | 1990-01-18 | Asea Brown Boveri | LOW VOLTAGE SWITCHGEAR |
| WO2019137579A1 (en) * | 2018-01-12 | 2019-07-18 | Peter Lell | Electric interruption switch comprising reactive coating in the reaction chamber |
-
1935
- 1935-11-13 GB GB3146035A patent/GB467496A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3824025A1 (en) * | 1988-07-15 | 1990-01-18 | Asea Brown Boveri | LOW VOLTAGE SWITCHGEAR |
| WO2019137579A1 (en) * | 2018-01-12 | 2019-07-18 | Peter Lell | Electric interruption switch comprising reactive coating in the reaction chamber |
| US11437210B2 (en) | 2018-01-12 | 2022-09-06 | Peter Lell | Electric interruption switch comprising reactive coating in the reaction chamber |
| AT525159B1 (en) * | 2018-01-12 | 2023-02-15 | Lell Peter | Electrical circuit breaker with reactive coating in the reaction chamber |
| AT525159A5 (en) * | 2018-01-12 | 2023-02-15 | Lell Peter | Electrical circuit breaker with reactive coating in the reaction chamber |
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