FR2251900A1 - Laminated electric insulating material board - has asbestos, resin and glass fibre based layers - Google Patents
Laminated electric insulating material board - has asbestos, resin and glass fibre based layersInfo
- Publication number
- FR2251900A1 FR2251900A1 FR7341012A FR7341012A FR2251900A1 FR 2251900 A1 FR2251900 A1 FR 2251900A1 FR 7341012 A FR7341012 A FR 7341012A FR 7341012 A FR7341012 A FR 7341012A FR 2251900 A1 FR2251900 A1 FR 2251900A1
- Authority
- FR
- France
- Prior art keywords
- resin
- asbestos
- glass fibre
- insulating material
- layer
- 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.)
- Granted
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
- H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
Landscapes
- Laminated Bodies (AREA)
- Insulating Bodies (AREA)
- Organic Insulating Materials (AREA)
Abstract
The laminated board consists of a refractory material layer (1) such as asbestos, layer of a resin (2), which hardens by polymerisation after adding a catalyst, and a layer of glass fibres. In practice, the layer of refractory material can be 5mm thick, and the layers of resin and glass fibres can be 3 to 4mm thick. The number of various layers can be increased according to requirements. Such a board can be exposed on its refractory side to electric arcs, and can be subjected to mechanical loads because of its resin and glass fibre layers. Typically, it can be used for electric contact breaker chambers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7341012A FR2251900A1 (en) | 1973-11-16 | 1973-11-16 | Laminated electric insulating material board - has asbestos, resin and glass fibre based layers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7341012A FR2251900A1 (en) | 1973-11-16 | 1973-11-16 | Laminated electric insulating material board - has asbestos, resin and glass fibre based layers |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2251900A1 true FR2251900A1 (en) | 1975-06-13 |
FR2251900B1 FR2251900B1 (en) | 1976-10-01 |
Family
ID=9127902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7341012A Granted FR2251900A1 (en) | 1973-11-16 | 1973-11-16 | Laminated electric insulating material board - has asbestos, resin and glass fibre based layers |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2251900A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0094424A1 (en) * | 1981-11-23 | 1983-11-23 | Essex Group | Unitary sleeving insulation. |
-
1973
- 1973-11-16 FR FR7341012A patent/FR2251900A1/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0094424A1 (en) * | 1981-11-23 | 1983-11-23 | Essex Group | Unitary sleeving insulation. |
EP0094424A4 (en) * | 1981-11-23 | 1984-04-06 | Essex Group | Unitary sleeving insulation. |
Also Published As
Publication number | Publication date |
---|---|
FR2251900B1 (en) | 1976-10-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |