GB501850A - Improvements in or relating to electric cables - Google Patents
Improvements in or relating to electric cablesInfo
- Publication number
- GB501850A GB501850A GB2529337A GB2529337A GB501850A GB 501850 A GB501850 A GB 501850A GB 2529337 A GB2529337 A GB 2529337A GB 2529337 A GB2529337 A GB 2529337A GB 501850 A GB501850 A GB 501850A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheath
- pipe
- conductors
- conductor
- cable
- 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
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
Landscapes
- Waveguides (AREA)
Abstract
501,850. Cables. STANDARD TELEPHONES & CABLES, Ltd. (Sonnenfeld, H.) Sept. 17, 1937, No. 25293. [Class 36] In a cable system of the kind comprising one or more insulated conductors installed in a rigid pipe filled with gas under pressure, the insulated conductor or conductors is or are surrounded, prior to installation in the pipe, by an expansible sheath which, after the drawing of the sheathed conductor or conductors into the pipe, is expanded into contact with the inner wall of the pipe, so as to form a lining therefor, by applying gas pressure to the interior of the cable. The sheath may be of elastic material such as rubber or the like, or suitably plasticized polystyrene ; or relatively inelastic materials, such as lead or cellulose esters, may be used, in which case the sheath is formed with a corrugated or folded cross section so that expansion may be effected without stretching the sheath by the. opening out of the folds or corrugations. The Figure shows such an unexpanded sheath 3 surrounding an insulated conductor 1 installed in a pipe 4. The insulated conductor or conductors may be closely surrounded by an extruded layer which separates the insulation from the gas filling the pipe, the expansible sheath being applied over the extruded layer and expanded by gas introduced under pressure in spaces between them. When the sheath is formed of a material which is a poor conductor of heat, longitudinally extending and circumferentially spaced heat conducting elements may be embedded in the sheath. A corrugated tubular electric conductor may be embedded in the sheath to enable the cable to be used for the transmission of high-frequency currents. To prevent damage to the sheath during the drawing of the cable into the pipe the outer surface of the sheath may be ribbed, whilst to facilitate drawing-in, a lubricating layer, such as a layer of soap or graphite, may be provided on the sheath. Specifications 488,069 ; and 490,814, [Group IV], are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2529337A GB501850A (en) | 1937-09-17 | 1937-09-17 | Improvements in or relating to electric cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2529337A GB501850A (en) | 1937-09-17 | 1937-09-17 | Improvements in or relating to electric cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB501850A true GB501850A (en) | 1939-03-07 |
Family
ID=10225355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2529337A Expired GB501850A (en) | 1937-09-17 | 1937-09-17 | Improvements in or relating to electric cables |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB501850A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2196469A (en) * | 1986-10-22 | 1988-04-27 | Wood Group Drilling & Prod | Tubular sheathed cable |
-
1937
- 1937-09-17 GB GB2529337A patent/GB501850A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2196469A (en) * | 1986-10-22 | 1988-04-27 | Wood Group Drilling & Prod | Tubular sheathed cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4016356A (en) | Heat recoverable article | |
| US3836702A (en) | Means for sealing and protecting a cable splice | |
| US2531156A (en) | Method of insulating hollow core conductors | |
| US4164620A (en) | Insulative corona discharge suppressing sheath for high voltage cable splices | |
| GB501850A (en) | Improvements in or relating to electric cables | |
| US4241004A (en) | High voltage splice | |
| US2093114A (en) | Electric cable and method of installation | |
| US2282003A (en) | Electric cable | |
| GB1429587A (en) | Hollow conductor pber cable | |
| GB906696A (en) | Improvements in electric cables and electric cable systems | |
| US2075019A (en) | Stop joint for electric cables | |
| CN210350763U (en) | Cable joint butt joint cold shrink pipe | |
| GB625512A (en) | Improvements in electric cables | |
| US2054046A (en) | Underground electric power trans | |
| FR2414245A1 (en) | Medium voltage fire-resistant electrical cable - has corrugated metallic sheath surrounding insulation layer to allow expansion of latter under effects of temp. | |
| US1757030A (en) | Electric cable | |
| RU182081U1 (en) | CABLE FOR ROLLING COMPOSITION OF RAIL TRANSPORT | |
| US1969720A (en) | Electric power cable | |
| US1959354A (en) | Electric cable | |
| US2808354A (en) | Electric cables and the method of making the same | |
| US2186446A (en) | Electric cable | |
| IE35446B1 (en) | Electric cable having a corrugated metal sheath | |
| US1589505A (en) | Cable-joint structure | |
| US2492437A (en) | Stress cone seal for electric cable systems | |
| CN220628864U (en) | Metal sheath cable connector |