Ice-repellent coatings could be one of the solutions to mitigate the formation of wet snow sleeves on power lines. To enhance the resilience of the electrical system, RSE is studying this solution by combining the development of coatings in its laboratories with field testing under snow conditions at the WILD station in Vinadio. Additionally, there is an operational trial of treated guard wires on active lines, conducted in collaboration with TERNA and leading national conductor manufacturers. <\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[1406,1324,1340,1379],"targets":[],"rapporti_tipologie":[762],"class_list":["post-192385","rapporti","type-rapporti","status-publish","hentry","tag-coating-ice-phobic","tag-electricity-network-en","tag-resilience","tag-technologies-and-components","rapporti_tipologie-report-en"],"acf":{"projects":{"ID":191042,"post_author":"464","post_date":"2024-07-10 15:54:47","post_date_gmt":"2024-07-10 13:54:47","post_content":"","post_title":"Components and materials for safety and resilience","post_excerpt":"The project aims to study and research innovative component and material solutions in order to increase the safety and resilience of the electrical system, also through new diagnostic methodologies which are necessary to cope with the new requirements of the grid and the changing environmental stresses to which it is subjected.","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"components-and-materials-for-safety-and-resilience","to_ping":"","pinged":"","post_modified":"2024-08-09 15:52:10","post_modified_gmt":"2024-08-09 13:52:10","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.rse-web.it\/progetti\/components-and-materials-for-safety-and-resilience\/","menu_order":0,"post_type":"progetti","post_mime_type":"","comment_count":"0","filter":"raw"},"order_posts":"","dont_show_search":false,"related_posts":false,"dont_show_hompage":false,"show_on_slider":false,"single_post_data":{"titolo_spot":"","post_content":"
Over the past decade, the resilience of Italy’s power grids has been severely tested by heavy wet snow events, which have caused significant damage to infrastructure and affected large areas where the lines were not adequately designed to handle the snow overloads experienced. The problem arises from the heavy snow sleeves that form on conductors due to the high liquid content in wet snowflakes. Operators and researchers have identified various mitigation solutions, but currently, there is no single practical solution, making it necessary to diversify strategies.<\/p>\n
Among these, the application of ice-repellent coatings to conductors has garnered interest from the electrical sector, conductor manufacturers, and CIGRE, which created the WG B2.69 \u201cCoatings for Power Network Equipment,\u201d to which RSE contributes.<\/p>\n
RSE’s work on coatings involves a synergy between laboratory studies and development of coatings and experimental activities at the WILD station in Vinadio (CN), dedicated to studying the effects of wet snow on conductors. Another aspect of this synergy is the collaboration with TERNA and TRATOS, which has initiated an operational experiment on the Malga Ciapela-Saviner line using the most promising treatments from WILD\u2019s experiments.<\/p>\n
At the WILD station, qualitative tests are conducted by capturing images every 15 minutes to assess the ability of ice-repellent coatings to slow the formation or promote the early shedding of snow sleeves compared to untreated samples under the same snow conditions. Similarly, tests at Malga Ciapela (BL) involve evaluating four guard wires, three treated and one as a reference. A new element for the winter of 2019-2020 includes winter tests at WILD of insulators with hydrophobic and super-hydrophobic treatments.<\/p>\n
Regarding the experiments at the WILD station, the ice-repellent treatments proposed by RSE, such as SIVO and ALK, seem to offer promising mitigation effects on small-scale samples. Their application at Malga Ciapela, starting with the replacement of the guard wires in January 2019, has shown interesting mitigation capabilities over the two winters analyzed in the report, especially during the first winter when the treatments had just been applied. A treatment proposed by TRATOS also appears to offer good mitigation potential.<\/p>\n
In 2019, in collaboration with TERNA and e-distribuzione, testing began on LoraWan IoT devices for high and medium voltage spans to assess the suitability of this technology for detecting sleeve formations on conductors. The initial results are encouraging.<\/p>\n","link_estreno":false,"scarica_file":[{"download_option":"download","file_name":"Download Report","download":{"ID":165724,"id":165724,"title":"20004796","filename":"20004796.pdf","filesize":4706959,"url":"https:\/\/www.rse-web.it\/wp-content\/uploads\/2022\/05\/20004796.pdf","link":"https:\/\/www.rse-web.it\/en\/rapporti\/caratterizzazione-e-verifica-delle-prestazioni-di-conduttori-idrofobici-e-ice-fobici-periodo-gennaio-2019-aprile-2020\/attachment\/20004796\/","alt":"","author":"93","description":"","caption":"","name":"20004796","status":"inherit","uploaded_to":165723,"date":"2022-05-06 13:26:25","modified":"2022-05-06 13:26:25","menu_order":0,"mime_type":"application\/pdf","type":"application","subtype":"pdf","icon":"https:\/\/www.rse-web.it\/wp-includes\/images\/media\/document.png"}}],"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2020-12-30","autori":"P. Marcacci, M. Tribuzio, G. Quinteri (RSE S.P.A.)","rapporto":"","rif_rse":"20004796"},"satellite_post_url":""},"yoast_head":"\n