GB908036A - Improvements in or relating to the sheathing of oil-filled electric cables - Google Patents
Improvements in or relating to the sheathing of oil-filled electric cablesInfo
- Publication number
- GB908036A GB908036A GB4304259A GB4304259A GB908036A GB 908036 A GB908036 A GB 908036A GB 4304259 A GB4304259 A GB 4304259A GB 4304259 A GB4304259 A GB 4304259A GB 908036 A GB908036 A GB 908036A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- sheath
- chamber
- oil
- seal
- 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
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/30—Drying; Impregnating
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
908,036. Making cables. PIRELLI-GENERAL CABLE WORKS Ltd. Nov. 14, 1960 [Dec. 18, 1959], No. 43042/59. Class 36. [Also n Group XXII] In the manufacture of oil-filled electric cables, the core or cores are first evacuated and dried, a sheath is then applied by extrusion and the core or cores are impregnated, all these steps being performed under vacuum. A lead-sheathed core 3 leaving an extrusion die 4 passes through a first vacuum chamber 9 and then through a seal 8 into a second vacuum chamber 10 where the sheath is cooled by a water spray 13. The chambers are evacuated by connections 11, 12 to a steam-jet ejector. An outer seal 6 closes the chamber 10 and a seal 5 is provided against the extrusion press 1. Upon leaving the chamber 10 the cable core is impregnated whilst the vacuum still exists between the core and sheath, a valved plug having been fitted to each end of the cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4304259A GB908036A (en) | 1959-12-18 | 1959-12-18 | Improvements in or relating to the sheathing of oil-filled electric cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4304259A GB908036A (en) | 1959-12-18 | 1959-12-18 | Improvements in or relating to the sheathing of oil-filled electric cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB908036A true GB908036A (en) | 1962-10-10 |
Family
ID=10427071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4304259A Expired GB908036A (en) | 1959-12-18 | 1959-12-18 | Improvements in or relating to the sheathing of oil-filled electric cables |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB908036A (en) |
-
1959
- 1959-12-18 GB GB4304259A patent/GB908036A/en not_active Expired
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