GB1329635A - Device for the relief of dielectric stress in high voltage cable splices terminations and regions adjacent ground electrodes - Google Patents
Device for the relief of dielectric stress in high voltage cable splices terminations and regions adjacent ground electrodesInfo
- Publication number
- GB1329635A GB1329635A GB1329635DA GB1329635A GB 1329635 A GB1329635 A GB 1329635A GB 1329635D A GB1329635D A GB 1329635DA GB 1329635 A GB1329635 A GB 1329635A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- cable
- high voltage
- terminations
- electrode
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/06—Cable terminating boxes, frames or other structures
- H02G15/064—Cable terminating boxes, frames or other structures with devices for relieving electrical stress
- H02G15/068—Cable terminating boxes, frames or other structures with devices for relieving electrical stress connected to the cable shield only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
- H02G15/103—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress
- H02G15/105—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress connected to the cable shield only
Landscapes
- Cable Accessories (AREA)
Abstract
1329635 Cable joints and terminations; insulators MINNESOTA MINING & MFG CO 20 April 1971 10205/71 Headings H2C and H2E A device for relieving dielectric stress in high voltage shielded and insulated cables comprises a housing, one or more ground electrodes adapted to be connected to the shielding of one or more cables and one or more tubes comprising a titanate and/or titanium dioxide surrounding an exposed portion of the insulation of the or each cable and contacting a respective ground electrode. The device may be used at a cable splice, at the support between a transmission line and a transmission tower or, as shown in Fig. 3 at a cable termination. A conductively glazed porcelain housing 30, supported by a mounting bracket 34, contains the end of a cable 20 comprising a conductor 22, insulation 26 and shielding 24, a ground electrode 14, a high voltage electrode 16 and a tube 12 supported within dielectric filler 28. The tube 12 which is composed of barium titanate and a ceramic and has a relative permittivity of 600, has its ends coated with silver and contacting the electrodes 14, 16. The filler 28 may comprise rubber, silicone grease, phenol-aldehyde, silicone gums or resins and the tube may be additionally supported by springs or clamps (not shown); the tube may also comprise MgO, hexamethylene diamine and hexafluoropropylene. In the embodiments of Figs. 4 and 5 (not shown) the tube contacts only one electrode or comprises two portions contacting the ground and highvoltage electrodes respectively but not each other.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1020571 | 1971-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1329635A true GB1329635A (en) | 1973-09-12 |
Family
ID=9963521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1329635D Expired GB1329635A (en) | 1971-04-20 | 1971-04-20 | Device for the relief of dielectric stress in high voltage cable splices terminations and regions adjacent ground electrodes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1329635A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT375220B (en) * | 1981-09-30 | 1984-07-10 | Silec Liaisons Elec | ELECTRODE TO REDUCE ELECTRICAL LOADS AT THE END OF THE CONNECTION OF A SHIELDED ELECTRIC CONDUCTOR |
EP0388779A2 (en) * | 1989-03-20 | 1990-09-26 | Alcatel Stk A/S | Cable termination |
-
1971
- 1971-04-20 GB GB1329635D patent/GB1329635A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT375220B (en) * | 1981-09-30 | 1984-07-10 | Silec Liaisons Elec | ELECTRODE TO REDUCE ELECTRICAL LOADS AT THE END OF THE CONNECTION OF A SHIELDED ELECTRIC CONDUCTOR |
EP0388779A2 (en) * | 1989-03-20 | 1990-09-26 | Alcatel Stk A/S | Cable termination |
EP0388779A3 (en) * | 1989-03-20 | 1992-01-15 | Alcatel Stk A/S | Cable termination |
US5206780A (en) * | 1989-03-20 | 1993-04-27 | Alcatel Stk A/S | Cable termination |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |