{"id":2029,"date":"2026-08-19T03:28:34","date_gmt":"2026-08-19T03:28:34","guid":{"rendered":"https:\/\/sh-jycable.com\/?p=2029"},"modified":"2026-08-19T03:28:34","modified_gmt":"2026-08-19T03:28:34","slug":"cable-shielding-density","status":"publish","type":"post","link":"https:\/\/sh-jycable.com\/fr\/cable-shielding-density\/","title":{"rendered":"Densit\u00e9 de blindage des c\u00e2bles"},"content":{"rendered":"<p>La densit\u00e9 de blindage d'un c\u00e2ble d\u00e9signe l'indicateur quantitatif de la capacit\u00e9 de la couche de blindage du c\u00e2ble \u00e0 bloquer les signaux \u00e9lectromagn\u00e9tiques.<\/p>\n<p>Elle est g\u00e9n\u00e9ralement exprim\u00e9e en pourcentage et indique dans quelle mesure la couche de blindage est capable de bloquer ou d'att\u00e9nuer les interf\u00e9rences \u00e9lectromagn\u00e9tiques. La densit\u00e9 de blindage d\u00e9pend de facteurs tels que l'\u00e9paisseur du fil tress\u00e9 et la densit\u00e9 du tressage.<\/p>\n<p>1. Il existe diff\u00e9rentes densit\u00e9s de tressage couramment utilis\u00e9es pour les couches de blindage des c\u00e2bles ; voici quelques-unes des plus courantes : \u2022 70% : elle permet de r\u00e9sister dans une certaine mesure aux interf\u00e9rences \u00e9lectromagn\u00e9tiques externes et convient aux raccordements d\u2019\u00e9quipements \u00e9lectriques g\u00e9n\u00e9raux pr\u00e9sentant des exigences de blindage \u00e9lectromagn\u00e9tique relativement faibles.<br \/>\n\u2022 80% : il permet de supprimer efficacement les interf\u00e9rences \u00e9lectromagn\u00e9tiques et est couramment utilis\u00e9 pour le c\u00e2blage interne des appareils \u00e9lectroniques courants et du mat\u00e9riel de bureau.<br \/>\n\u2022 90% : L'effet de blindage est efficace ; ce mod\u00e8le convient aux environnements soumis \u00e0 certaines exigences en mati\u00e8re d'environnement \u00e9lectromagn\u00e9tique, tels que certains syst\u00e8mes de contr\u00f4le d'automatisation industrielle.<br \/>\n\u2022 95% : il offre une excellente protection contre les interf\u00e9rences \u00e9lectromagn\u00e9tiques et est couramment utilis\u00e9 dans les c\u00e2bles sensibles \u00e0 ces interf\u00e9rences, tels que les c\u00e2bles de communication et de transmission de donn\u00e9es.<\/p>\n<p>2. Les normes nationales pr\u00e9voient diff\u00e9rentes exigences en mati\u00e8re de densit\u00e9 de blindage des c\u00e2bles : \u2022 Pour les fils blind\u00e9s monoconducteurs d\u2019une section nominale inf\u00e9rieure ou \u00e9gale \u00e0 0,12 mm\u00b2, la densit\u00e9 de tressage du blindage ne doit pas \u00eatre inf\u00e9rieure \u00e0 60%.<br \/>\n\u2022 Pour les autres c\u00e2bles blind\u00e9s, la densit\u00e9 de blindage ne doit pas \u00eatre inf\u00e9rieure \u00e0 80%.<br \/>\n\u2022 C\u00e2bles informatiques : la densit\u00e9 de blindage individuelle doit atteindre 85%, et la densit\u00e9 de blindage globale doit atteindre 95%.<br \/>\n\u2022 C\u00e2ble de commande : en cas d'utilisation d'un fil de cuivre rond pour le blindage tress\u00e9, la densit\u00e9 de tressage ne doit pas \u00eatre inf\u00e9rieure \u00e0 80%.<br \/>\nDe plus, pour le blindage tress\u00e9 des fils de cuivre des c\u00e2bles, il est g\u00e9n\u00e9ralement exig\u00e9 que la densit\u00e9 de couverture soit sup\u00e9rieure \u00e0 90% et que le diam\u00e8tre du fil tress\u00e9 soit sup\u00e9rieur \u00e0 0,1 mm. Lorsque le ruban m\u00e9tallique est fabriqu\u00e9 par enroulement, le taux de chevauchement ne doit g\u00e9n\u00e9ralement pas \u00eatre inf\u00e9rieur \u00e0 15%, mais certaines normes sp\u00e9cifiques, telles que la norme TICW\/06, stipulent que le taux de chevauchement du ruban m\u00e9tallique de blindage ne doit pas \u00eatre inf\u00e9rieur \u00e0 25%.<br \/>\n\u2022 98% : Ce produit pr\u00e9sente une densit\u00e9 de blindage \u00e9lev\u00e9e et convient aux domaines sp\u00e9cifiques soumis \u00e0 des exigences strictes en mati\u00e8re de blindage \u00e9lectromagn\u00e9tique, tels que les \u00e9quipements m\u00e9dicaux, l'a\u00e9rospatiale, etc.<br \/>\n\u2022 99% et versions sup\u00e9rieures : offre une excellente protection contre les interf\u00e9rences \u00e9lectromagn\u00e9tiques ; g\u00e9n\u00e9ralement utilis\u00e9 dans le domaine militaire, la recherche scientifique de pointe et d'autres applications o\u00f9 la compatibilit\u00e9 \u00e9lectromagn\u00e9tique est une exigence majeure.<br \/>\nLe choix de la densit\u00e9 de tressage de la couche de blindage d'un c\u00e2ble n\u00e9cessite de prendre en compte de mani\u00e8re exhaustive divers facteurs, tels que les sc\u00e9narios d'application, les exigences des \u00e9quipements et le co\u00fbt.<\/p>","protected":false},"excerpt":{"rendered":"<p>Cable shielding density refers to the quantitative indicator of the shielding capability of the cable shielding layer towards electromagnetic signals. It is usually expressed as a percentage, reflecting the extent to which the shielding layer can block or attenuate electromagnetic interference. The shielding density depends on factors such as the thickness of the braided wire [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2030,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cable Shielding Density - sh-jycable.com<\/title>\n<meta name=\"description\" content=\"Cable shielding density\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sh-jycable.com\/fr\/cable-shielding-density\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cable Shielding Density - 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