FR2498387B1 - - Google Patents
Info
- Publication number
- FR2498387B1 FR2498387B1 FR8100774A FR8100774A FR2498387B1 FR 2498387 B1 FR2498387 B1 FR 2498387B1 FR 8100774 A FR8100774 A FR 8100774A FR 8100774 A FR8100774 A FR 8100774A FR 2498387 B1 FR2498387 B1 FR 2498387B1
- Authority
- FR
- France
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Emergency Protection Circuit Devices (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8100774A FR2498387A1 (fr) | 1981-01-16 | 1981-01-16 | Dispositif de protection contre les surtensions pour circuit terminal de centre telephonique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8100774A FR2498387A1 (fr) | 1981-01-16 | 1981-01-16 | Dispositif de protection contre les surtensions pour circuit terminal de centre telephonique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2498387A1 FR2498387A1 (fr) | 1982-07-23 |
| FR2498387B1 true FR2498387B1 (US07923587-20110412-C00001.png) | 1984-04-20 |
Family
ID=9254230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8100774A Granted FR2498387A1 (fr) | 1981-01-16 | 1981-01-16 | Dispositif de protection contre les surtensions pour circuit terminal de centre telephonique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2498387A1 (US07923587-20110412-C00001.png) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2552604B1 (fr) * | 1983-09-27 | 1989-02-24 | Europ Composants Electron | Circuit de protection telephonique contre les perturbations electriques |
| EP0186873B1 (en) * | 1984-12-24 | 1991-09-25 | Nippon Telegraph And Telephone Corporation | Protector circuit |
| CN114295886A (zh) * | 2021-12-07 | 2022-04-08 | 国网浙江省电力有限公司乐清市供电公司 | 用于高压带电告警装置的处理装置及处理电路 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4099216A (en) * | 1976-11-12 | 1978-07-04 | Westinghouse Electric Corp. | Fuseless intrinsic safety barrier |
| FR2419625A1 (fr) * | 1978-03-07 | 1979-10-05 | Labo Cent Telecommunicat | Dispositif de protection contre les surtensions de ligne telephonique |
-
1981
- 1981-01-16 FR FR8100774A patent/FR2498387A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2498387A1 (fr) | 1982-07-23 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |