Birds on power lines

Birds on power lines

Why can a bird safely rest on a high-voltage power line? We discuss three effects that can lead to the development of voltages and currents in the bird's body. To explain the absence of electric shocks, we give numerical estimates of these voltages and currents obtained from the standard soluti...

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Veröffentlicht in:American journal of physics 2014-07, Vol.82 (7), p.691-694
1. Verfasser: Redinz, J. A
Format: Artikel
Sprache:eng
Schlagworte:
Alltagsphysik
Electric currents
Electric power
Electricity distribution
Hochspannung
Kabel
Numerical analysis
Physics
Physik
Physikunterricht
Vogel
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Beschreibung
Zusammenfassung:Why can a bird safely rest on a high-voltage power line? We discuss three effects that can lead to the development of voltages and currents in the bird's body. To explain the absence of electric shocks, we give numerical estimates of these voltages and currents obtained from the standard solution for the voltage along a two-wire transmission line. C 2014 American Association of Physics Teachers.
ISSN:0002-9505
1943-2909
DOI:10.1119/1.4874259