{"id":36437,"date":"2023-01-04T17:58:05","date_gmt":"2023-01-04T16:58:05","guid":{"rendered":"https:\/\/www.gt-engineering.it\/?post_type=normativa_tecnica&#038;p=36437"},"modified":"2023-06-26T15:14:22","modified_gmt":"2023-06-26T14:14:22","slug":"iec-62061-securite-fonctionnelle-des-machines","status":"publish","type":"normativa_tecnica","link":"https:\/\/www.gt-engineering.it\/fr\/reglements-techniques\/normes-iec\/iec-62061-securite-fonctionnelle-des-machines\/","title":{"rendered":"IEC 62061 : S\u00e9curit\u00e9 fonctionnelle 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                \r\n\r\n    \r\n        \r\n            \r\n                \r\n                    <picture\r\n                        class=\"\"\r\n                                            >\r\n                                                                                                        <source\r\n                                media=\"(max-width: 150px)\"\r\n                                width=\"150\"\r\n                                height=\"150\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/01\/cover-3-150x150.jpg.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 232px)\"\r\n                                width=\"232\"\r\n                                height=\"300\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/01\/cover-3-232x300.jpg.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 687px)\"\r\n                                width=\"687\"\r\n                                height=\"890\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/01\/cover-3.jpg.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 687px)\"\r\n                                width=\"687\"\r\n                                height=\"890\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/01\/cover-3.jpg.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                            <img\r\n                            class=\"a-image transparent border-image h-auto  w-full\"\r\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/01\/cover-3.jpg.webp\"\r\n                                                        title=\"cover\"\r\n                                                        type=\"image\/webp\"\r\n                        \/>\r\n                    <\/picture>\r\n\r\n                \r\n\r\n                    \r\n    \r\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 IEC 62061 est l&rsquo;une des deux normes de s\u00e9curit\u00e9 fonctionnelle pour les machines, l&rsquo;autre \u00e9tant l&rsquo;ISO 13849-1. Le <strong>22 mars 2021<\/strong>, 16 ans apr\u00e8s la premi\u00e8re \u00e9dition, une nouvelle norme a \u00e9t\u00e9 publi\u00e9e !<\/p>\n<p><em>IEC 62061 : S\u00e9curit\u00e9 des machines &#8211; S\u00e9curit\u00e9 fonctionnelle des syst\u00e8mes de commande relatifs \u00e0 la s\u00e9curit\u00e9.<\/em><\/p>\n<p><strong>Le 7 avril 2022,<\/strong> elle a \u00e9t\u00e9 publi\u00e9e au<strong> Journal officiel de l&rsquo;Union europ\u00e9enne<\/strong> et est devenue officiellement <strong>une norme harmonis\u00e9e de la directive Machines<\/strong>. L&rsquo;ancienne \u00e9dition de la IEC 62061:2005 restera en vigueur jusqu&rsquo;au <strong>11 octobre 2023<\/strong>.<\/p>\n<p>La norme est d\u00e9riv\u00e9e de la IEC 61508 et s&rsquo;adresse au secteur des machines : elle permet de v\u00e9rifier le <strong>niveau de fiabilit\u00e9 atteint par un syst\u00e8me de contr\u00f4le de s\u00e9curit\u00e9<\/strong> (SCS).<\/p>\n<p>L&rsquo;\u00e9quipe IEC Maintenance (MT62061), qui travaille sur la nouvelle version de la IEC 62061, a d\u00e9marr\u00e9 ses activit\u00e9s fin 2016. Le texte utilis\u00e9 comme point de d\u00e9part n&rsquo;\u00e9tait pas celui de la version pr\u00e9c\u00e9dente de 2005, mais le dernier texte issu de la fusion de la IEC 62061 et de l&rsquo;ISO 13849-1 : <strong>le projet ISO 17305. C&rsquo;est l&rsquo;une des raisons pour lesquelles la nouvelle \u00e9dition de la IEC 62061 est plus proche de l&rsquo;ISO 13849-1 dans son approche<\/strong> : l&rsquo;\u00e9quipe a concili\u00e9 le formalisme de la IEC 61508 avec le pragmatisme de l&rsquo;ISO 13849-1.<br \/>\nIl existe plusieurs diff\u00e9rences entre l&rsquo;\u00e9dition 2005 et la nouvelle, <strong>la principale \u00e9tant qu&rsquo;elle peut d\u00e9sormais \u00eatre utilis\u00e9e pour les syst\u00e8mes non \u00e9lectriques<\/strong>. D&rsquo;autres changements importants ont \u00e9t\u00e9 apport\u00e9s :<\/p>\n<ul>\n<li>Plusieurs am\u00e9liorations et clarifications ont \u00e9t\u00e9 apport\u00e9es aux architectures et \u00e0 la fiabilit\u00e9 (articles 6 et 7).<\/li>\n<li>Le \u00ab\u00a0SILCL\u00a0\u00bb a \u00e9t\u00e9 remplac\u00e9 par le \u00ab\u00a0SIL maximal\u00a0\u00bb d&rsquo;un sous-syst\u00e8me (article 7).<\/li>\n<li>L&rsquo;utilisation de cas pour les logiciels (article 8)<\/li>\n<li>Des exigences relatives \u00e0 l&rsquo;ind\u00e9pendance des activit\u00e9s de v\u00e9rification (article 8) et de validation (article 9) des logiciels ont \u00e9t\u00e9 ajout\u00e9es.<\/li>\n<li>Nouvelle annexe informative avec des exemples (annexe G)<\/li>\n<li>Nouvelles annexes informatives sur les valeurs MTTFD typiques, les diagnostics et les m\u00e9thodes de calcul pour les architectures (annexe C, annexe D et annexe H).<\/li>\n<\/ul>\n<p>La norme n&rsquo;utilise plus l&rsquo;acronyme SRECS (Safety Related Electrical Control Systems), puisqu&rsquo;elle s&rsquo;applique d\u00e9sormais \u00e9galement aux syst\u00e8mes pneumatiques et hydrauliques. <strong>Le nouvel acronyme est SCS : Safety-related Control System (syst\u00e8me de commande li\u00e9 \u00e0 la s\u00e9curit\u00e9).<\/strong><\/p>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n\n\n\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                    <div class=\"mb-6 relative w-full md:mb-4 lg:mb-8 xl:mb-9\">\n                \n        <div                class=\"m-headings\"\n            >\n    \n    \n<h2 class=\"a-heading text-left text-primary font-heading text-2xl lg:text-3xl xl:text-4xl font-normal mt-2 first:mt-0\">\n                    La fiabilit\u00e9 de la fonction de s\u00e9curit\u00e9    <\/h2>\n        <\/div>\n                <\/div>\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                \r\n\r\n    \r\n        \r\n            \r\n                \r\n                    <picture\r\n                        class=\"\"\r\n                                            >\r\n                                                                                                        <source\r\n                                media=\"(max-width: 150px)\"\r\n                                width=\"150\"\r\n                                height=\"150\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/Tabella-3-620611.png-150x150.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 300px)\"\r\n                                width=\"300\"\r\n                                height=\"139\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/Tabella-3-620611.png-300x139.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 543px)\"\r\n                                width=\"543\"\r\n                                height=\"252\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/Tabella-3-620611.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 543px)\"\r\n                                width=\"543\"\r\n                                height=\"252\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/Tabella-3-620611.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                            <img\r\n                            class=\"a-image transparent border-image h-auto  w-full\"\r\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/Tabella-3-620611.png.webp\"\r\n                                                        title=\"Tabella-3-620611.png\"\r\n                                                        type=\"image\/webp\"\r\n                        \/>\r\n                    <\/picture>\r\n\r\n                \r\n\r\n                    \r\n    \r\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 IEC 62061 indique la fiabilit\u00e9 du syst\u00e8me de contr\u00f4le de s\u00e9curit\u00e9 en utilisant le concept de SIL :<\/p>\n<p><em>[IEC 62061:2021 &#8211; 3.2.24] <strong>Niveau d&rsquo;int\u00e9grit\u00e9 de la s\u00e9curit\u00e9 (SIL) :<\/strong> niveau discret (un sur trois possibles) pour sp\u00e9cifier les exigences d&rsquo;int\u00e9grit\u00e9 de la s\u00e9curit\u00e9 des fonctions de contr\u00f4le li\u00e9es \u00e0 la s\u00e9curit\u00e9 \u00e0 attribuer au SCS, le niveau d&rsquo;int\u00e9grit\u00e9 de la s\u00e9curit\u00e9 trois \u00e9tant le plus \u00e9lev\u00e9 et le niveau d&rsquo;int\u00e9grit\u00e9 de la s\u00e9curit\u00e9 un \u00e9tant le plus bas.<\/em><\/p>\n<p>SIL 1 est le niveau le plus bas et SIL 3 le plus \u00e9lev\u00e9. SIL 4 n&rsquo;est pas applicable aux machines.<\/p>\n<p>Le niveau d&rsquo;int\u00e9grit\u00e9 de la s\u00e9curit\u00e9 est mesur\u00e9 en PFHD. Dans la nouvelle \u00e9dition, sa d\u00e9finition a \u00e9t\u00e9 modifi\u00e9e. Auparavant, elle \u00e9tait appel\u00e9e \u00ab\u00a0Probabilit\u00e9 de d\u00e9faillance dangereuse par heure (PFHD)\u00a0\u00bb. Elle est d\u00e9sormais appel\u00e9e \u00ab\u00a0<strong>Fr\u00e9quence moyenne d&rsquo;une d\u00e9faillance dangereuse par heure<\/strong>\u00ab\u00a0. Il s&rsquo;agit d&rsquo;une meilleure d\u00e9finition puisque la valeur n&rsquo;est pas une probabilit\u00e9 [sans dimension] mais une fr\u00e9quence [1\/h].<\/p>\n<p>Les valeurs sont illustr\u00e9es dans le tableau 3 de la norme.<\/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 IEC 62061 est l&rsquo;une des deux normes de s\u00e9curit\u00e9 fonctionnelle pour les machines, l&rsquo;autre \u00e9tant l&rsquo;ISO 13849-1. Le 22 mars 2021, 16 ans apr\u00e8s la premi\u00e8re \u00e9dition, une nouvelle norme a \u00e9t\u00e9 publi\u00e9e !<\/p>\n","protected":false},"author":182,"featured_media":36438,"parent":0,"menu_order":45,"template":"","meta":{"_acf_changed":false,"footnotes":""},"normative-tecniche":[165],"class_list":["post-36437","normativa_tecnica","type-normativa_tecnica","status-publish","has-post-thumbnail","hentry","tipologia_normativa-normes-iec"],"acf":{"sottotitolo":"","allegati":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>IEC 62061 : S\u00e9curit\u00e9 fonctionnelle des machines - Gt-Engineering<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.gt-engineering.it\/fr\/reglements-techniques\/normes-iec\/iec-62061-securite-fonctionnelle-des-machines\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"IEC 62061 : S\u00e9curit\u00e9 fonctionnelle des machines - Gt-Engineering\" \/>\n<meta property=\"og:description\" content=\"La IEC 62061 est l&#039;une des deux normes de s\u00e9curit\u00e9 fonctionnelle pour les machines, l&#039;autre \u00e9tant l&#039;ISO 13849-1. 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