Electrically insulative hollow-profile structural part with high-tension attaching elements and method of constructing same
US4319076A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 1979 |
| Grant date | Mar 9, 1982 |
| Priority date | — |
| Expiry date | Sep 5, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49227
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrically nonconducting hollow-profile structural part having a protective cover, preferably made of polyester threads or fibers, with a mechanically supporting glass-reinforced plastic core, especially for SF.sub.6 insulating gas technology. The hollow-profile structural part has an end that is conically shaped and connected to an attaching element with an oppositely facing conical surface by means of conically-constructed screw and/or cemented connections in such a way that the glass-fiber interfaces of the core exposed at the end surface are covered gastight by the cone superficies of the attaching element. As a result, the SF.sub.6 insulation gas products of separation which attack glass and which develop as a result of corona discharges cannot come into contact with the glass fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.