GB497391A - Improvements in or relating to electric connecting cables or power leads - Google Patents
Improvements in or relating to electric connecting cables or power leadsInfo
- Publication number
- GB497391A GB497391A GB16490/37A GB1649037A GB497391A GB 497391 A GB497391 A GB 497391A GB 16490/37 A GB16490/37 A GB 16490/37A GB 1649037 A GB1649037 A GB 1649037A GB 497391 A GB497391 A GB 497391A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stranded
- signalling
- conductors
- earthing conductor
- cores
- 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
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
- H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables
Landscapes
- Insulated Conductors (AREA)
Abstract
497,391. Cables. SIEMENS-SCHUCKERTWERKE AKT.-GES. June 14, 1937, No. 16490. Convention date, June 15, 1936. [Class 36] A power cable for connecting to transportable apparatus comprises one or more signalling or remote control conductors in addition to stranded insulated and unsheathed power cores, the signalling or remote control conductor or conductors being arranged within a stranded protective earthing conductor or conductors which is or are stranded with the power cores. In the construction shown in Fig. 1, three rubber insulated power cores 1 are stranded together with a similarly insulated earthing conductor 4 and embedded in a tough rubber covering 3 over which may be applied an earthing braid surrounded by a further rubber covering. The earthing conductor 4 is stranded over a core comprising signalling conductors 5 enclosed in a common rubber jacket surrounded by an asbestos layer 6. In the modified construction shown in Fig. 2, the earthing conductor 4 is constituted by three separate cores arranged in the spaces between the power cores 1. A rubber insulated signalling wire 5 surrounded by a heat-resisting layer, forms the centre of each of the separate cores of the earthing conductor.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE497391X | 1936-06-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB497391A true GB497391A (en) | 1938-12-14 |
Family
ID=6545170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16490/37A Expired GB497391A (en) | 1936-06-15 | 1937-06-14 | Improvements in or relating to electric connecting cables or power leads |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE422076A (en) |
GB (1) | GB497391A (en) |
-
0
- BE BE422076D patent/BE422076A/xx unknown
-
1937
- 1937-06-14 GB GB16490/37A patent/GB497391A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE422076A (en) |
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