Surge arrester
US4853670A · kind A · utility
13Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1988 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Feb 19, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C7/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An open surge arrester has an active part with a number of surge arrester elements of a metal oxide varistor material, arranged between two end fittings, and, a retaining part with a number of rods of an insulating material for mechanically holding the surge arrester together. Both the active part and the retaining part are exposed to the environment surrounding the surge arrester and are individually profiled to provide an extended creep distance between the end fittings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.