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Sustainability 2018, 10(2), 491; https://doi.org/10.3390/su10020491

Maintenance of a High-Voltage Overhead Transmission Line: Sustainability and Noise Impact Assessment

1
Department of Mechanical and Industrial Engineering, University of Brescia, 25128 Brescia, Italy
2
Department of Industrial Engineering, University of Padova, 35131 Padova, Italy
3
AOT Torino, Terna Rete Italia S.p.A., 10154 Torino, Italy
*
Author to whom correspondence should be addressed.
Received: 15 January 2018 / Revised: 5 February 2018 / Accepted: 7 February 2018 / Published: 12 February 2018
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Abstract

Overhead high-voltage lines are a common choice for power transmission, but their planning, installation and management are often challenging tasks because of the surrounding public interest and of their importance as critical infrastructures. This is particularly true in the case of industrial installations requiring a high continuity of service. The working group formed by the University of Brescia (UniBS), the University of Padova (UniPD), and Torino Transmission Operating Area (AOT) of Terna Rete Italia S.p.A. (Terna) has studied an innovative solution featuring a remotely-operated switchgear mounted directly on the trellis holding the conductors. This strategy reduces visual impact, land use and vulnerability of the system to weather adversity, but noise exposure of the population requires appropriate study. This work introduces a new technical solution, discusses its benefits, and assesses the audible noise impact of the improved transmission line, considering the combined effect of switchgear action and corona discharge around the conductors. The sound emission data are fed as input into a sound propagation software enabling evaluating the noise perceived by people living in the neighborhoods. A mitigation solution is proposed and analyzed. View Full-Text
Keywords: overhead transmission line; high-voltage switchgear; noise and health; corona audible noise; outdoor models overhead transmission line; high-voltage switchgear; noise and health; corona audible noise; outdoor models
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Piana, E.A.; Bignucolo, F.; Donini, A.; Spezie, R. Maintenance of a High-Voltage Overhead Transmission Line: Sustainability and Noise Impact Assessment. Sustainability 2018, 10, 491.

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