{"id":35151,"date":"2023-02-20T17:44:28","date_gmt":"2023-02-20T16:44:28","guid":{"rendered":"https:\/\/www.gt-engineering.it\/?post_type=consulenza&#038;p=35151"},"modified":"2023-06-23T14:50:56","modified_gmt":"2023-06-23T13:50:56","slug":"conformite-des-panneaux-electriques-des-machines","status":"publish","type":"consulenza","link":"https:\/\/www.gt-engineering.it\/fr\/consultant\/conformite-des-panneaux-electriques-des-machines\/","title":{"rendered":"Conformit\u00e9 des panneaux \u00e9lectriques des machines"},"content":{"rendered":"\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-base\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n        \n                    <div\n                class=\"h-auto mb-6 md:mb-4 lg:mb-8 xl:mb-9 float-left mr-6 md:mr-4 lg:mr-8 xl:mr-9  overflow-hidden shadow-content-image w-full md:w-1\/3\"\n            >\n                \n\n    \n        \n            \n                \n                    <picture\n                        class=\"\"\n                                            >\n                                                                                                        <source\n                                media=\"(max-width: 150px)\"\n                                width=\"150\"\n                                height=\"150\"\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/Quadri-Bordo-Macchina-1-768x512-1-150x150.jpg.webp\"\n                                type=\"image\/webp\"\n                            \/>\n                                                                                <source\n                                media=\"(max-width: 300px)\"\n                                width=\"300\"\n                                height=\"200\"\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/Quadri-Bordo-Macchina-1-768x512-1-300x200.jpg.webp\"\n                                type=\"image\/webp\"\n                            \/>\n                                                                                <source\n                                media=\"(max-width: 768px)\"\n                                width=\"768\"\n                                height=\"512\"\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/Quadri-Bordo-Macchina-1-768x512-1.jpg.webp\"\n                                type=\"image\/webp\"\n                            \/>\n                                                                                <source\n                                media=\"(max-width: 768px)\"\n                                width=\"768\"\n                                height=\"512\"\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/Quadri-Bordo-Macchina-1-768x512-1.jpg.webp\"\n                                type=\"image\/webp\"\n                            \/>\n                                                                            <img\n                            class=\"a-image transparent border-image h-auto  w-full\"\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/Quadri-Bordo-Macchina-1-768x512-1.jpg.webp\"\n                                                        width=\"768\"\n                            height=\"512\"\n                                                                                    title=\"Quadri-Bordo-Macchina-1-768&#215;512\"\n                                                        type=\"image\/webp\"\n                            loading=\"eager\" fetchpriority=\"high\" decoding=\"async\"                        \/>\n                    <\/picture>\n\n                \n\n                    \n    \n\n            <\/div>\n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>La norme de r\u00e9f\u00e9rence pour la conception et la construction des tableaux de bord des machines ou au service des machines est :<\/p>\n<p><em><strong>EN 60204-1<\/strong> : S\u00e9curit\u00e9 des machines &#8211; \u00c9quipement \u00e9lectrique des machines. Partie 1 : Exigences g\u00e9n\u00e9rales.<\/em><\/p>\n<p>La norme analyse les diff\u00e9rentes fonctions requises pour l&rsquo;\u00e9quipement \u00e9lectrique d&rsquo;une machine et fournit des crit\u00e8res de dimensionnement :<\/p>\n<p><strong>&#8211; D\u00e9connexion (chap. 5)<\/strong>. Parmi les principales erreurs, on note la confusion entre la n\u00e9cessit\u00e9 d&rsquo;un sectionneur externe et la demande d&rsquo;une serrure de porte.<\/p>\n<p><strong>&#8211; Protection contre les chocs \u00e9lectriques (chap. 6).<\/strong> Ici aussi, il y a souvent des erreurs dans les sch\u00e9mas, notamment parce que la norme suppose que l&rsquo;on conna\u00eet le fonctionnement des syst\u00e8mes de mise \u00e0 la terre TN et TT.<\/p>\n<p><strong>&#8211; Liaison \u00e9quipotentielle (chap. 8)<\/strong> : Ici, malheureusement, la norme est r\u00e9dig\u00e9e de mani\u00e8re trop complexe, de sorte que le fabricant est amen\u00e9 \u00e0 conclure que toutes les parties structurelles du mat\u00e9riel \u00e9lectrique doivent \u00eatre mises \u00e0 la terre.<\/p>\n<p><strong>&#8211; Circuits et fonctions de commande et de contr\u00f4le (chap. 9)<\/strong> : la mise \u00e0 la terre en aval d&rsquo;un transformateur de commande fait encore l&rsquo;objet de discussions.<\/p>\n<p><strong>&#8211; V\u00e9rifications (chap. 18)<\/strong> : c&rsquo;est ici que la v\u00e9rification de l&rsquo;imp\u00e9dance de la boucle de d\u00e9faut et de l&rsquo;ad\u00e9quation du dispositif de protection contre les surintensit\u00e9s correspondant est expliqu\u00e9e et exig\u00e9e.<\/p>\n<p>Ce n&rsquo;est toutefois pas la seule r\u00e8gle applicable aux tableaux de distribution des machines. Malheureusement, la norme <strong>EN IEC 61439-1<\/strong> doit \u00e9galement \u00eatre respect\u00e9e, bien que les comit\u00e9s techniques aient d\u00e9battu pendant des ann\u00e9es du fait que cette norme contient des exigences \u00ab\u00a0trop s\u00e9v\u00e8res\u00a0\u00bb pour les tableaux de distribution qui sont souvent construits en un seul exemplaire.<\/p>\n<p>L&rsquo;un des aspects critiques est la v\u00e9rification de la conception appel\u00e9e \u00ab\u00a0<strong>r\u00e9sistance aux courts-circuits<\/strong>\u00a0\u00bb \u00a710.11. Cet aspect peut \u00eatre \u00e9vit\u00e9 :<\/p>\n<p><em>a) Pour les tableaux de distribution qui ont des courants nominaux de courte dur\u00e9e (voir 5.3.4), ou des courants nominaux de court-circuit conditionnels ne d\u00e9passant pas 10 kA valeur efficace (voir 5.3.5).<\/em><\/p>\n<p><em>b) Pour les tableaux de distribution ou les circuits de tableaux de distribution prot\u00e9g\u00e9s par des limiteurs de courant ayant un courant de cr\u00eate limit\u00e9 ne d\u00e9passant pas 17 kA en correspondance avec le courant de court-circuit maximal pr\u00e9sum\u00e9 autoris\u00e9 aux bornes du circuit d&rsquo;entr\u00e9e de l&rsquo;ENCLOSURE.<\/em><\/p>\n<p><em>c) Pour les circuits auxiliaires des tableaux de distribution destin\u00e9s \u00e0 \u00eatre raccord\u00e9s \u00e0 des transformateurs dont la puissance nominale ne d\u00e9passe pas 10 kVA avec une tension nominale secondaire sup\u00e9rieure ou \u00e9gale \u00e0 110 V, ou ne d\u00e9passe pas 1,6 kVA avec une tension nominale secondaire inf\u00e9rieure \u00e0 110 V, et dont l&rsquo;imp\u00e9dance de court-circuit n&rsquo;est pas inf\u00e9rieure \u00e0 4 %.<\/em><\/p>\n<p><strong>Tous les autres circuits doivent \u00eatre v\u00e9rifi\u00e9s.<\/strong><\/p>\n<p><strong>Nous organisons des cours de formation sur la conformit\u00e9 de l&rsquo;\u00e9quipement \u00e9lectrique avec les r\u00e9glementations en vigueur et menons des activit\u00e9s de conseil.<\/strong><\/p>\n<p><strong>Pour en savoir plus sur le sujet, consultez les normes EN 60204-1 et EN 61439-2 relatives aux produits des tableaux \u00e9lectriques des machines.<\/strong><\/p>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n","protected":false},"excerpt":{"rendered":"<p>La norme de r\u00e9f\u00e9rence pour la conception et la construction des tableaux de bord des machines ou au service des machines est :<\/p>\n","protected":false},"author":182,"featured_media":35152,"menu_order":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-35151","consulenza","type-consulenza","status-publish","has-post-thumbnail","hentry"],"acf":{"sottotitolo":"Les normes EN 60204-1 et EN IEC 61439-1"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - 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