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Helicopter Live-Line Work on 1000-kV<?Pub _newline ?> UHV Transmission Lines.
- Source :
-
IEEE Transactions on Power Delivery . Jun2016, Vol. 31 Issue 3, p982-989. 8p. - Publication Year :
- 2016
-
Abstract
- Live-line work methods using helicopters in the vicinity of 1000-kV transmission lines were simulated with finite-element modeling of the electric-field distributions. The effect of the approach path of the helicopter live-line work platform toward the energized conductor was computed. Predicted electric fields on the line worker head, body, arms, and legs were compared with measured results from a single-phase ultra-high-voltage (UHV) mock-up, and with calculation results from the simulation of an extra-high-voltage (EHV) 500-kV transmission-line geometry. The UHV conductor-to-work platform discharge occurred at a distance of about 2 m, in line with standard flashover models. Additional shielding efficiency of about 4 dB is recommended for the electrically conductive clothing when working on the UHV lines in China, compared to EHV lines. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 08858977
- Volume :
- 31
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Power Delivery
- Publication Type :
- Academic Journal
- Accession number :
- 115559851
- Full Text :
- https://doi.org/10.1109/TPWRD.2015.2437072