GB808149A - Improvements in or relating to mineral insulated cables - Google Patents
Improvements in or relating to mineral insulated cablesInfo
- Publication number
- GB808149A GB808149A GB2434256A GB2434256A GB808149A GB 808149 A GB808149 A GB 808149A GB 2434256 A GB2434256 A GB 2434256A GB 2434256 A GB2434256 A GB 2434256A GB 808149 A GB808149 A GB 808149A
- Authority
- GB
- United Kingdom
- Prior art keywords
- insulation
- grease
- oil
- extruder
- fed
- 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
- H01B7/16—Rigid-tube cables
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
- H05B3/56—Heating cables
Landscapes
- Insulated Conductors (AREA)
- Organic Insulating Materials (AREA)
Abstract
808,149. Sheathed heating resistors. BRITISH INSULATED CALLENDER'S CABLES Ltd. Aug. 7, 1957 [Aug. 8, 1956], No. 24342/56. Drawings to Specification. Class 39(3) [Also in Group XXXVI] The mineral insulation of a sheathed heating resistor is rendered water-repellent by impregnation with a silicon oil or grease which may amount to up to 5 per cent by weight of the insulation and may comprise a methyl siloxane polymer or a phenyl methyl siloxane. The oil or grease may be applied to the inner surface of the sheath before the introduction of the insulation, or may be introduced into the insulation prior to or during the introduction of the latter into the sheath, the assembly being subsequently drawn down and annealed. For example, the oil or liquified grease may be sprayed on to the insulation as it leaves a drying furnace, or it may be sprayed or dipped into the cable sheath as the mineral insulation is fed in. Alternatively, the insulation in the form of a paste may be extruder about a conductor, the oil or liquified grease either being fed into the extruder or milled with the insulation before the latter is fed into the extruder.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE559636D BE559636A (en) | 1956-08-08 | ||
| GB2434256A GB808149A (en) | 1956-08-08 | 1956-08-08 | Improvements in or relating to mineral insulated cables |
| DEB45568A DE1084797B (en) | 1956-08-08 | 1957-08-03 | Method for making an electrical cable insulated with minerals water repellent |
| FR1180860D FR1180860A (en) | 1956-08-08 | 1957-08-06 | Improvements to mineral-insulated cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2434256A GB808149A (en) | 1956-08-08 | 1956-08-08 | Improvements in or relating to mineral insulated cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB808149A true GB808149A (en) | 1959-01-28 |
Family
ID=10210215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2434256A Expired GB808149A (en) | 1956-08-08 | 1956-08-08 | Improvements in or relating to mineral insulated cables |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE559636A (en) |
| DE (1) | DE1084797B (en) |
| FR (1) | FR1180860A (en) |
| GB (1) | GB808149A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265672A (en) | 1978-11-16 | 1981-05-05 | Walton Basil V E | Powdered telephone cable filling compound |
| CN114751036A (en) * | 2022-04-25 | 2022-07-15 | 重庆科宝电缆股份有限公司 | Filling magnesium oxide powder feeding hopper and insulating fireproof cable magnesium oxide filling method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1109402A (en) * | 1966-03-31 | 1968-04-10 | Decca Ltd | Improvements in or relating to position indicators for use in mobile craft |
| DE3007655A1 (en) * | 1980-02-29 | 1981-09-17 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Waterproofed radiator heating coil insulator prodn. - by coating inorganic, oxide or silicate substrate with organic titanate |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE890979C (en) * | 1943-03-06 | 1953-09-24 | Siemens Ag | Electrical cable or wire with powdery, mineral or ceramic insulation |
| FR1043327A (en) * | 1950-10-12 | 1953-11-09 | British Insulated Callenders | Improvements to electric cables |
| FR1027437A (en) * | 1950-10-24 | 1953-05-12 | Alsacienne Constr Meca | Improvements to shielded electrical conductors |
-
0
- BE BE559636D patent/BE559636A/xx unknown
-
1956
- 1956-08-08 GB GB2434256A patent/GB808149A/en not_active Expired
-
1957
- 1957-08-03 DE DEB45568A patent/DE1084797B/en active Pending
- 1957-08-06 FR FR1180860D patent/FR1180860A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265672A (en) | 1978-11-16 | 1981-05-05 | Walton Basil V E | Powdered telephone cable filling compound |
| CN114751036A (en) * | 2022-04-25 | 2022-07-15 | 重庆科宝电缆股份有限公司 | Filling magnesium oxide powder feeding hopper and insulating fireproof cable magnesium oxide filling method |
| CN114751036B (en) * | 2022-04-25 | 2024-03-15 | 重庆科宝电缆股份有限公司 | Magnesia powder filling hopper and magnesia filling method for insulated fireproof cable |
Also Published As
| Publication number | Publication date |
|---|---|
| BE559636A (en) | |
| DE1084797B (en) | 1960-07-07 |
| FR1180860A (en) | 1959-06-10 |
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