Terna Electrical Substations Central and Southern Italy

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External noise monitoring regarding Terna electrical substations for the verification of emission levels (Central and Southern Italy)

PROJECT DESCRIPTION

The work involved the acoustic compatibility assessment and the noise climate representation concerning Terna substation activities in relation to the surrounding territory, buildings and sensitive situations.
During the study acoustic measurements and dedicated noise propagation software were implemented.

The on-site monitoring, necessary to characterize noise sources, was performed near the substation plants and also in the surrounding areas in order to obtain the relation between the acoustic power and emission frequencies and estimate the modalities of sound attenuation along the axis of the receptors.
This allowed the calibration of a three-dimensional simulation model comprising of the detected tonal components. Such components are not unusual to detect because of the occurrence of dominant frequencies (50 Hz, 100 Hz, 200 Hz) caused by the transformers which are generally present in these sites.

The acoustic compatibility related to the substation activities was assessed through the verification of the threshold levels required by legislation, in particular by the acoustic classification plans (Framework Law no. 447/1995).

PROJECT CHARACTERISTICS

The study involved 95 substations distributed throughout southern and central Italy, including the islands:
• 16 in Sardinia;
• 16 in Sicily;
• 15 in Campania;
• 14 in Calabria;
• 8 in Lazio;
• 4 in The Marches;
• 2 in Abruzzo;
• 2 in Umbria.

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