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The performance of high voltage; outdoor insulation in polluted environments
"An iron wire, 12000 feet in length, was suspended about five feet from the ground by silk cords; one end of it was connected to the globe of an electrical machine, and at the other a lead ball was hung in order to perceive when the matter reached it. After five or six turns of the wheel, the matter...
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| Format: | Thesis |
| Language: | English |
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Department of Electrical Engineering
2023
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| _version_ | 1867613263391358976 |
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| access_status_str | Open Access |
| author | Macy, R E |
| author2 | Timme, H |
| author_browse | Macy, R E Timme, H |
| author_facet | Timme, H Macy, R E |
| author_sort | Macy, R E |
| collection | Thesis |
| description | "An iron wire, 12000 feet in length, was suspended about five feet from the ground by silk cords; one end of it was connected to the globe of an electrical machine, and at the other a lead ball was hung in order to perceive when the matter reached it. After five or six turns of the wheel, the matter had passed along the whole wire and communicated its virtue to the ball, which instantly attracted and repelled light bodies. 2. As this ball was equally electrified with every part of the wire, it is probable that the electric matter would instantly pervade a wire of a still greater length, provided we had a proper apparatus for the purpose. 3. Several metals and other conductors were substituted in place of the ball, and all received the electricity in the same manner. The ball and touched with other non-conductors, :when' the finger, gave a luminous spark and as smart a shock as when the end of the wire next to 'the 'gTobe·vas touched. All these effects instantly ceased whenever .. any person not electrified touched any part of the wire and commenced again a few seconds after his hand was withdrawn. The same effects are produced, though with more difficultly, when hair or woollen ropes were substituted in place of the silk ones: But they were entirely stopped by hemp ropes or when the silk ones were wetted." |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/38994 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:21.255Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Department of Electrical Engineering |
| publisherStr | Department of Electrical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/38994 The performance of high voltage; outdoor insulation in polluted environments Macy, R E Timme, H Outdoor insulation "An iron wire, 12000 feet in length, was suspended about five feet from the ground by silk cords; one end of it was connected to the globe of an electrical machine, and at the other a lead ball was hung in order to perceive when the matter reached it. After five or six turns of the wheel, the matter had passed along the whole wire and communicated its virtue to the ball, which instantly attracted and repelled light bodies. 2. As this ball was equally electrified with every part of the wire, it is probable that the electric matter would instantly pervade a wire of a still greater length, provided we had a proper apparatus for the purpose. 3. Several metals and other conductors were substituted in place of the ball, and all received the electricity in the same manner. The ball and touched with other non-conductors, :when' the finger, gave a luminous spark and as smart a shock as when the end of the wire next to 'the 'gTobe·vas touched. All these effects instantly ceased whenever .. any person not electrified touched any part of the wire and commenced again a few seconds after his hand was withdrawn. The same effects are produced, though with more difficultly, when hair or woollen ropes were substituted in place of the silk ones: But they were entirely stopped by hemp ropes or when the silk ones were wetted." 2023-10-02T09:38:37Z 2023-10-02T09:38:37Z 1981 2023-10-02T08:18:06Z Master Thesis Masters Masters http://hdl.handle.net/11427/38994 eng application/pdf Department of Electrical Engineering Faculty of Engineering and the Built Environment |
| spellingShingle | Outdoor insulation Macy, R E The performance of high voltage; outdoor insulation in polluted environments |
| thesis_degree_str | Master's |
| title | The performance of high voltage; outdoor insulation in polluted environments |
| title_full | The performance of high voltage; outdoor insulation in polluted environments |
| title_fullStr | The performance of high voltage; outdoor insulation in polluted environments |
| title_full_unstemmed | The performance of high voltage; outdoor insulation in polluted environments |
| title_short | The performance of high voltage; outdoor insulation in polluted environments |
| title_sort | performance of high voltage outdoor insulation in polluted environments |
| topic | Outdoor insulation |
| url | http://hdl.handle.net/11427/38994 |
| work_keys_str_mv | AT macyre theperformanceofhighvoltageoutdoorinsulationinpollutedenvironments AT macyre performanceofhighvoltageoutdoorinsulationinpollutedenvironments |