GB545839A - Improvements in or relating to lead-in bushings for electrical apparatus - Google Patents
Improvements in or relating to lead-in bushings for electrical apparatusInfo
- Publication number
- GB545839A GB545839A GB1765640A GB1765640A GB545839A GB 545839 A GB545839 A GB 545839A GB 1765640 A GB1765640 A GB 1765640A GB 1765640 A GB1765640 A GB 1765640A GB 545839 A GB545839 A GB 545839A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shell
- conductor
- mount
- insulation
- bushings
- 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
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/26—Lead-in insulators; Lead-through insulators
- H01B17/30—Sealing
- H01B17/303—Sealing of leads to lead-through insulators
- H01B17/306—Sealing of leads to lead-through insulators by embedding in material other than glass or ceramics
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Insulators (AREA)
Abstract
545,839. Lead-in bushings for electrical apparatus. REYROLLE & CO., Ltd., A., and ADAM, H. Dec. 13, 1940, No. 17656. [Class 36] A lead-in bushing for electrical apparatus comprises a bent insulated conductor with a lower straight portion entering the casing and an upper straight portion at an angle thereto and surrounded by a weatherproof insulating shell, and a mounting member round the first portion with a flange for attachment to the casing and its upper end adjacent the bend in the conductor so shaped that the insulating shell is held at the appropriate angle. In Fig. 1, the conductor A has insulation B moulded or formed of wound and vulcanized rubber-compound tape, or of impregnated paper, or as described in Specifications 515,890, or 515,891 ; the paper may be transversely or otherwise creped, wound with each turn overlapping half the previous turn and impregnated during or after winding with varnish, liquids such as hydrocarbons or halogenated hydrocarbons, polymerizable solutions such as styrene, or gases such as nitrogen, dichlorodifluoromethane &c. The insulation may include metal condenser layers, and its lower part may have a metallized surface C around which the flanged metal mount D fits ; the mount has an inclined upper face supporting packing E<1> against which abuts a porcelain shell E slightly spaced from the conductor to receive insulating compound G inserted under pressure, a metal cap F, with packing F<1> being held by a nut F<2> screwed on the end of the conductor. In a three-phase circuit-breaker, the six bushings are arranged in two rows with their upper ends diverging ; slightly inclined facings may be provided to receive the mounts. In Fig, 3, the shell E is received within the inclined upper end of the mount D, within which cement H and packing E3 are placed; the insulation B has a shoulder forming an abutment for the shell E. Alternatively, the shell may fit round an inclined cylindrical part of the mount.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1765640A GB545839A (en) | 1940-12-13 | 1940-12-13 | Improvements in or relating to lead-in bushings for electrical apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1765640A GB545839A (en) | 1940-12-13 | 1940-12-13 | Improvements in or relating to lead-in bushings for electrical apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB545839A true GB545839A (en) | 1942-06-16 |
Family
ID=10098958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1765640A Expired GB545839A (en) | 1940-12-13 | 1940-12-13 | Improvements in or relating to lead-in bushings for electrical apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB545839A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007073322A1 (en) * | 2005-12-23 | 2007-06-28 | Abb Technology Ltd. | A method for manufacturing a post insulator and a post insulator |
-
1940
- 1940-12-13 GB GB1765640A patent/GB545839A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007073322A1 (en) * | 2005-12-23 | 2007-06-28 | Abb Technology Ltd. | A method for manufacturing a post insulator and a post insulator |
US7943853B2 (en) | 2005-12-23 | 2011-05-17 | Abb Technology Ltd. | Method for manufacturing a post insulator and a post insulator |
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