Recently updated on August 30th, 2024 at 11:53 pm<\/p>","protected":false},"excerpt":{"rendered":"
These must show electronic states slightly lower than the conduction band. Furthermore, these sites must be able to act as traps for excess negative charge.<\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[1324,1300,1379],"targets":[1304],"pubblicazioni_tipologie":[773],"class_list":["post-192032","pubblicazioni","type-pubblicazioni","status-publish","hentry","tag-electricity-network-en","tag-industrial-sector","tag-technologies-and-components","targets-industrial-world","pubblicazioni_tipologie-isi-article-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":"
Polypropylene is one of the most widely used materials in the electrical power industry. In particular, it is used to insulate high voltage cables. If subjected to stress associated with AC power supply, this material tends to age especially in relation to treeing. This phenomenon causes some internal defects in the insulation to enlarge, leading to the formation of cavities. Treeing is capable of burrowing into the polymer matrix leading to eventual failure of the component. Each discharge is generated by electronic emission from the surface that divides the gas from the solid. The Schottky effect is believed to be the primary mechanism causing electron emission. Our DFT analysis suggests that emission is very difficult when the surface is neutral. The DOS analysis also found that the release is linked to chemical defects. These must show electronic states slightly lower than the conduction band. Furthermore, these sites must be able to act as traps for excess negative charge.<\/p>\n","scarica_file":false,"link_estreno":[{"link_text":"Download ISI Article","link":"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0254058421000511"}],"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2021-04-15","autori":"G. Buccella (Politecnico di Milano), D. Ceresoli (CNR-SCITEC), A. Villa, L. Barbieri, R. Malgesini (RSE S.p.A.)","destinazione":"Materials Chemistry and Physics, Vol. 263, 124268","rif_rse":"20006242"},"satellite_post_url":""},"yoast_head":"\n