Recently updated on September 20th, 2024 at 09:41 am<\/p>","protected":false},"excerpt":{"rendered":"
The report summarises the results of the activities carried out as part of the \u2018Components and materials for safety and resilience\u2019 project, mainly aimed at the characterisation of conductors with reference to their torsional stiffness and in the presence of mechanical solutions to mitigate the formation of ice sleeves.
\n The activities concerned in particular:
\n \u2022 The calculation and characterisation of the torsional stiffness of different overhead line conductors.
\n \u2022 Testing the behaviour of torsion detuning pendulums installed on overhead power line conductors. \u2022 In-depth study of the behaviour of aramid yarn core conductors in relation to creeping. <\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[1324,1340,1379],"targets":[1317],"rapporti_tipologie":[762],"class_list":["post-192908","rapporti","type-rapporti","status-publish","hentry","tag-electricity-network-en","tag-resilience","tag-technologies-and-components","targets-research","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":"
In some parts of Italy characterised by a particular morphology, accumulation of wet snow on conductors of overhead power lines generates important mechanical overloads that are among the major causes of damage to overhead power lines and power outages in winter.<\/p>\n
When wet snow accumulates on the windward part of a conductor, this rotates due to the applied torque, which increases the accumulation of wet snow and leads to the formation of a complete and greater sleeve. In order to investigate this mechanism and the possibility of mitigating the formation of sleeves on overhead lines, the torsional stiffness of different overhead line conductors was calculated and characterised, and the behaviour of torsion detuning pendulums was tested.<\/p>\n
In this regard, characterisations of the behaviour of torsion detuning pendulums under the effects of wind vibrations were also carried out.<\/p>\n
Evaluations were also carried out on the possible use of interphase spacers.<\/p>\n
The results allowed us to consider the installation of these devices on lines in operation and their behaviour in the presence of wind vibrations.<\/p>\n
The report also examined the behaviour of aramid yarn core conductors in relation to creeping, following the anomalous behaviour recorded during the experiments conducted during the previous Annual Implementation Plan, which confirmed the need for additional studies and experiments before considering a possible application in the field<\/p>\n
The report also mentions international standards (IEC TC7 and IEC TC11) on high temperature conductors and composite material core conductors in particulars; RSE, TERNA and Italian major manufacturers of conductors and terminals are at the forefront in the developments of these type of standards.<\/p>\n","link_estreno":false,"scarica_file":[{"download_option":"download","file_name":"Download Report","download":{"ID":165742,"id":165742,"title":"20010434","filename":"20010434.pdf","filesize":3237657,"url":"https:\/\/www.rse-web.it\/wp-content\/uploads\/2022\/05\/20010434.pdf","link":"https:\/\/www.rse-web.it\/en\/rapporti\/sperimentazione-di-soluzioni-meccaniche-di-mitigazione-della-formazione-di-manicotti-di-neve-distanziatori-interfasici-e-dispositivi-anti-rotazionali-2020\/attachment\/20010434\/","alt":"","author":"93","description":"","caption":"","name":"20010434","status":"inherit","uploaded_to":165741,"date":"2022-05-06 15:10:20","modified":"2022-05-06 15:10:20","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":"G. Pirovano, P. Gadia, M. Giuliani (RSE S.P.A.)","rapporto":"","rif_rse":"20010434"},"satellite_post_url":""},"yoast_head":"\n