GB1213996A - Improvements in or relating to electrical stress grading elements - Google Patents
Improvements in or relating to electrical stress grading elementsInfo
- Publication number
- GB1213996A GB1213996A GB4522567A GB4522567A GB1213996A GB 1213996 A GB1213996 A GB 1213996A GB 4522567 A GB4522567 A GB 4522567A GB 4522567 A GB4522567 A GB 4522567A GB 1213996 A GB1213996 A GB 1213996A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cable
- sleeve
- insulation
- stress grading
- members
- 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
- 238000009413 insulation Methods 0.000 abstract 3
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 229920003051 synthetic elastomer Polymers 0.000 abstract 2
- 239000005061 synthetic rubber Substances 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 239000002390 adhesive tape Substances 0.000 abstract 1
- 229920001971 elastomer Polymers 0.000 abstract 1
- 239000013536 elastomeric material Substances 0.000 abstract 1
- 238000009422 external insulation Methods 0.000 abstract 1
- 239000004519 grease Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 239000005060 rubber Substances 0.000 abstract 1
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
Landscapes
- Cable Accessories (AREA)
Abstract
1,213,996. Cable terminations. PIRELLI GENERAL CABLE WORKS Ltd. 23 Sept., 1968 [4 Oct., 1967], No. 45225/67. Heading H2E. An electrical stress grading element, fitted to the termination of a high-voltage cable, comprises a sleeve 10 of insulating synthetic rubber around the external insulation I of the cable C, in sliding wedge engagement with a frustoconical member 11 of synthetic rubber in which carbon particles are dispersed to render it semiconductive. A tubular extension 20 of conical member 11 is slid on to the cable insulation I and is retained in abutment and electrical contact with the cable ground shield S by means of a semi-conductive adhesive tape 22. The wider portion of member 11 is provided with a peripheral beading 19. To facilitate fitment of the sleeve 10 on to the cable insulation, the latter may be smeared with silicone grease which collects in a cavity 16 when engagement of members 10 and 11 compresses the sleeve against the cable. Further stress grading is effected by an outer insulating rubber sheath 23 which also seals and protects the junction between the sleeve 10 and cone 11. Members 10, 11, 23 may conveniently be of the same elastomeric material as that of the cable insulation I.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4522567A GB1213996A (en) | 1967-10-04 | 1967-10-04 | Improvements in or relating to electrical stress grading elements |
| ES359197A ES359197A1 (en) | 1967-10-04 | 1968-10-03 | Improvements in or relating to electrical stress grading elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4522567A GB1213996A (en) | 1967-10-04 | 1967-10-04 | Improvements in or relating to electrical stress grading elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1213996A true GB1213996A (en) | 1970-11-25 |
Family
ID=10436372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4522567A Expired GB1213996A (en) | 1967-10-04 | 1967-10-04 | Improvements in or relating to electrical stress grading elements |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES359197A1 (en) |
| GB (1) | GB1213996A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4403109A (en) * | 1979-10-30 | 1983-09-06 | Siemens Aktiengesellschaft | Control element for high-voltage apparatus and method for the manufacture of a control element |
-
1967
- 1967-10-04 GB GB4522567A patent/GB1213996A/en not_active Expired
-
1968
- 1968-10-03 ES ES359197A patent/ES359197A1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4403109A (en) * | 1979-10-30 | 1983-09-06 | Siemens Aktiengesellschaft | Control element for high-voltage apparatus and method for the manufacture of a control element |
Also Published As
| Publication number | Publication date |
|---|---|
| ES359197A1 (en) | 1970-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |