{"id":41805,"date":"2023-08-10T08:27:12","date_gmt":"2023-08-10T07:27:12","guid":{"rendered":"https:\/\/www.gt-engineering.it\/?post_type=normativa_tecnica&#038;p=41805"},"modified":"2023-08-10T09:46:04","modified_gmt":"2023-08-10T08:46:04","slug":"determination-du-sil-requis-silr-selon-la-norme-iec-62061","status":"publish","type":"normativa_tecnica","link":"https:\/\/www.gt-engineering.it\/fr\/reglements-techniques\/normes-iec\/iec-62061-securite-fonctionnelle-des-machines\/determination-du-sil-requis-silr-selon-la-norme-iec-62061\/","title":{"rendered":"D\u00e9termination du SIL requis (SILr) selon la norme IEC 62061"},"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        \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>L&rsquo;annexe A de la norme IEC 62061 fournit une m\u00e9thode pour estimer le SIL (Safety Integrity Level) requis d&rsquo;un syst\u00e8me de contr\u00f4le li\u00e9 \u00e0 la s\u00e9curit\u00e9. Cette m\u00e9thode convient bien au mode d&rsquo;exploitation \u00e0 forte demande et n&rsquo;est pas recommand\u00e9e pour les fonctions de s\u00e9curit\u00e9 en mode \u00e0 faible demande, pour lesquelles d&rsquo;autres m\u00e9thodes telles que l&rsquo;analyse de la couche de protection (LOPA) [71] peuvent \u00eatre utilis\u00e9es.<\/p>\n<p>L&rsquo;annexe A de la IEC 62061 est \u00e9galement informative et les m\u00eames consid\u00e9rations sur la subjectivit\u00e9, d\u00e9crites dans le paragraphe pr\u00e9c\u00e9dent, s&rsquo;appliquent.<\/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:flex-row\">\n\n    \n\n                    <div \n                class=\"order-1 relative w-full md:w-3\/4\"\n            >\n                <div\n                    class=\"pt-6 space-y-6 w-full md:pt-0 md:space-y-4 lg:space-y-8 xl:space-y-9 md:pr-12 xl:pr-24\"\n                >\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                    \u00c9l\u00e9ments de risque et attribution du S    <\/h2>\n        <\/div>\n    \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>Les param\u00e8tres suivants s&rsquo;appliquent :<\/p>\n<ul>\n<li>Gravit\u00e9 du dommage (<strong>Se<\/strong>), \u00e9quivalente \u00e0 la gravit\u00e9 des blessures de la norme ISO 13849-1<\/li>\n<li>Probabilit\u00e9 d&rsquo;occurrence de ce dommage, qui est fonction de :<\/li>\n<li>de la fr\u00e9quence et de la dur\u00e9e de l&rsquo;exposition des personnes au danger (<strong>Fr<\/strong>)<\/li>\n<li>de la probabilit\u00e9 d&rsquo;occurrence d&rsquo;un \u00e9v\u00e9nement dangereux (<strong>Pr<\/strong>)<\/li>\n<li>des possibilit\u00e9s d&rsquo;\u00e9viter ou de limiter le dommage (<strong>Av<\/strong>)<\/li>\n<\/ul>\n<p>La gravit\u00e9 du dommage (Se) est not\u00e9e de 1 \u00e0 4, 4 \u00e9tant la situation la plus grave.<\/p>\n<p>La probabilit\u00e9 de survenue d&rsquo;un dommage est d\u00e9compos\u00e9e en trois param\u00e8tres ; chacun de ces param\u00e8tres est not\u00e9 de 1 \u00e0 5, 5 \u00e9tant la \u00ab\u00a0pire\u00a0\u00bb situation, et leurs scores sont additionn\u00e9s pour d\u00e9terminer une classe (Cl).<\/p>\n<p>La cote SIL est ensuite choisie dans une matrice qui repr\u00e9sente le score de gravit\u00e9 (Se) et la classe (Cl). Le SIL est d\u00e9termin\u00e9 \u00e0 l&rsquo;aide du tableau 4.6 {4.8.1.1}. La classe (Cl) est calcul\u00e9e comme suit Cl = Fr + Pr + Av.<\/p>\n<p>La zone noire indique le SIL assign\u00e9 comme cible pour le SCS. Les zones plus claires indiquent qu&rsquo;une fonction de s\u00e9curit\u00e9 d&rsquo;une valeur inf\u00e9rieure \u00e0 SIL 1 peut \u00eatre utilis\u00e9e. C&rsquo;est l&rsquo;\u00e9quivalent d&rsquo;un PLr a selon la norme ISO 13849-1. Si un syst\u00e8me de contr\u00f4le est utilis\u00e9 pour r\u00e9duire le risque, seul le principe de s\u00e9curit\u00e9 de base doit \u00eatre utilis\u00e9. Ce concept est \u00e9galement appel\u00e9 \u00ab\u00a0autres mesures\u00a0\u00bb (OM).<\/p>\n<p>Par rapport \u00e0 la premi\u00e8re \u00e9dition de la IEC 62061, SIL 2 pour les classes 3 et 4 est maintenant r\u00e9duit \u00e0 SIL 1, en raison du faible score pour les classes de fr\u00e9quence, de probabilit\u00e9 et d&rsquo;\u00e9vitement des dommages.<\/p>\n<p>Comme l&rsquo;indique le tableau 4.4, il existe une relation entre SIL et PL. En outre, un ing\u00e9nieur en m\u00e9canique peut utiliser l&rsquo;annexe A de la IEC 62061 pour d\u00e9terminer le PLr requis et utiliser la norme ISO 13849-1 pour les calculs de la fiabilit\u00e9 atteinte. C&rsquo;est la raison pour laquelle, dans le tableau 4.6 {4.8.1.1} (identique au tableau A.6 de la IEC 62061), les niveaux SIL et PL sont indiqu\u00e9s.<\/p>\n<\/div>                <\/div>\n            <\/div>\n        \n                    <div\n                class=\"h-auto order-2 mb-8 md:mb-0   overflow-hidden shadow-content-image w-full md:w-1\/2\"\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\/08\/Capture-15-1-150x150.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 300px)\"\r\n                                width=\"300\"\r\n                                height=\"104\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-15-1-300x104.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 759px)\"\r\n                                width=\"759\"\r\n                                height=\"264\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-15-1.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 759px)\"\r\n                                width=\"759\"\r\n                                height=\"264\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-15-1.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                            <img\r\n                            class=\"a-image transparent border-image h-auto  w-full mx-auto\"\r\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-15-1.png.webp\"\r\n                                                        title=\"Capture 15\"\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>\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:flex-row\">\n\n    \n\n                    <div \n                class=\"order-1 relative w-full md:w-3\/4\"\n            >\n                <div\n                    class=\"pt-6 space-y-6 w-full md:pt-0 md:space-y-4 lg:space-y-8 xl:space-y-9 md:pr-12 xl:pr-24\"\n                >\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                    Severity (Se)    <\/h2>\n        <\/div>\n    \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>Comme dans la norme ISO 13849-1, la gravit\u00e9 du dommage peut \u00eatre estim\u00e9e en choisissant la valeur appropri\u00e9e en fonction des cons\u00e9quences de l&rsquo;accident. Cette fois, quatre niveaux sont donn\u00e9s, comme dans les lignes directrices de Rapex :<\/p>\n<ul>\n<li><strong>4<\/strong> est une blessure mortelle ou irr\u00e9versible importante : perte d&rsquo;un membre, l\u00e9sions pulmonaires permanentes, perte d&rsquo;un \u0153il ou perte partielle ou totale de la vision ;<\/li>\n<li><strong>3<\/strong> est une blessure grave ou irr\u00e9versible, mais il est possible de continuer \u00e0 travailler apr\u00e8s gu\u00e9rison ; les exemples sont la perte de doigts ou d&rsquo;orteils, mais aussi les membres cass\u00e9s.<\/li>\n<li><strong>2<\/strong> est une blessure r\u00e9versible plus grave qui n\u00e9cessite une attention m\u00e9dicale. Il est possible de reprendre le travail apr\u00e8s une courte p\u00e9riode, par exemple en cas de lac\u00e9rations graves, d&rsquo;h\u00e9matomes atroces et s\u00e9v\u00e8res ;<\/li>\n<li><strong>1<\/strong> est une blessure l\u00e9g\u00e8re pour laquelle les premiers soins sans intervention m\u00e9dicale sont suffisants.<\/li>\n<\/ul>\n<\/div>                <\/div>\n            <\/div>\n        \n                    <div\n                class=\"h-auto order-2 mb-8 md:mb-0   overflow-hidden shadow-content-image w-full md:w-1\/2\"\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=\"140\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-16-1-150x140.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 300px)\"\r\n                                width=\"300\"\r\n                                height=\"89\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-16-1-300x89.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 473px)\"\r\n                                width=\"473\"\r\n                                height=\"140\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-16-1.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 473px)\"\r\n                                width=\"473\"\r\n                                height=\"140\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-16-1.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                            <img\r\n                            class=\"a-image transparent border-image h-auto  w-full mx-auto\"\r\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-16-1.png.webp\"\r\n                                                        title=\"Capture 16\"\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>\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        \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>Par rapport \u00e0 la norme ISO 13849-1, un score de 3 ou 4 correspond \u00e0 S2 et un score de 1 ou 2 correspond \u00e0 S1.<\/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                    Probabilit\u00e9 d&rsquo;occurrence du dommage    <\/h2>\n        <\/div>\n                <\/div>\n        \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>Chacun des trois param\u00e8tres Fr, Pr, Av doit \u00eatre estim\u00e9 s\u00e9par\u00e9ment, en utilisant la situation la plus d\u00e9favorable.<\/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:flex-row\">\n\n    \n\n                    <div \n                class=\"order-1 relative w-full md:w-3\/4\"\n            >\n                <div\n                    class=\"pt-6 space-y-6 w-full md:pt-0 md:space-y-4 lg:space-y-8 xl:space-y-9 md:pr-12 xl:pr-24\"\n                >\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                    Fr\u00e9quence et dur\u00e9e de l&rsquo;exposition (Fr)    <\/h2>\n        <\/div>\n    \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>Le param\u00e8tre Fr est li\u00e9 \u00e0 :<br \/>\n&#8211; la fr\u00e9quence de pr\u00e9sence de la personne dans la zone dangereuse et<br \/>\n&#8211; \u00e0 la dur\u00e9e moyenne de pr\u00e9sence.<br \/>\nLa norme classe la fr\u00e9quence et la dur\u00e9e d&rsquo;exposition en cinq niveaux :<\/p>\n<\/div>                <\/div>\n            <\/div>\n        \n                    <div\n                class=\"h-auto order-2 mb-8 md:mb-0   overflow-hidden shadow-content-image w-full md:w-1\/2\"\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\/08\/Capture-17-1-150x150.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 300px)\"\r\n                                width=\"300\"\r\n                                height=\"91\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-17-1-300x91.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 609px)\"\r\n                                width=\"609\"\r\n                                height=\"184\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-17-1.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 609px)\"\r\n                                width=\"609\"\r\n                                height=\"184\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-17-1.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                            <img\r\n                            class=\"a-image transparent border-image h-auto  w-full mx-auto\"\r\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-17-1.png.webp\"\r\n                                                        title=\"Capture 17\"\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>\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        \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>Comme le montre le tableau, si la dur\u00e9e est inf\u00e9rieure \u00e0 10 minutes, la valeur peut \u00eatre arrondie au niveau inf\u00e9rieur. Cela ne s&rsquo;applique pas \u00e0 la fr\u00e9quence d&rsquo;exposition de 1 h, qui ne doit en aucun cas \u00eatre diminu\u00e9e.<\/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:flex-row\">\n\n    \n\n                    <div \n                class=\"order-1 relative w-full md:w-3\/4\"\n            >\n                <div\n                    class=\"pt-6 space-y-6 w-full md:pt-0 md:space-y-4 lg:space-y-8 xl:space-y-9 md:pr-12 xl:pr-24\"\n                >\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                    Probabilit\u00e9 d&rsquo;occurrence d&rsquo;un \u00e9v\u00e9nement dangereux (Pr)    <\/h2>\n        <\/div>\n    \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>Ce param\u00e8tre n&rsquo;est pas explicite dans la norme ISO 13849-1.<br \/>\nLa probabilit\u00e9 d&rsquo;occurrence d&rsquo;un \u00e9v\u00e9nement dangereux se situe sur une \u00e9chelle allant de 1, pour une probabilit\u00e9 n\u00e9gligeable, \u00e0 5, en cas de probabilit\u00e9 tr\u00e8s \u00e9lev\u00e9e.<\/p>\n<\/div>                <\/div>\n            <\/div>\n        \n                    <div\n                class=\"h-auto order-2 mb-8 md:mb-0   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\/08\/Capture-18-2-150x150.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 300px)\"\r\n                                width=\"300\"\r\n                                height=\"159\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-18-2-300x159.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 311px)\"\r\n                                width=\"311\"\r\n                                height=\"165\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-18-2.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 311px)\"\r\n                                width=\"311\"\r\n                                height=\"165\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-18-2.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                            <img\r\n                            class=\"a-image transparent border-image h-auto  w-full mx-auto\"\r\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-18-2.png.webp\"\r\n                                                        title=\"Capture 18\"\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>\n        <\/section>\n\n    \n\n\n\n\n    \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        \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>Il s&rsquo;agit probablement du param\u00e8tre le plus difficile \u00e0 estimer, en raison de l&rsquo;influence de l&rsquo;automatisation ou du syst\u00e8me de contr\u00f4le, qui ne dispose d&rsquo;aucune donn\u00e9e de fiabilit\u00e9.<br \/>\nConsid\u00e9rons la pr\u00e9sence d&rsquo;une personne et d&rsquo;un robot \u00e0 l&rsquo;int\u00e9rieur d&rsquo;un espace prot\u00e9g\u00e9. Afin de d\u00e9terminer le SIL requis, la question est de savoir quelle est la probabilit\u00e9 que la personne soit touch\u00e9e par le robot en cas de d\u00e9marrage inattendu ; bien entendu, sans syst\u00e8me de contr\u00f4le li\u00e9 \u00e0 la s\u00e9curit\u00e9.<br \/>\nQuelqu&rsquo;un peut observer que, m\u00eame sans syst\u00e8me de s\u00e9curit\u00e9, l&rsquo;automatisation maintient le robot immobile : la probabilit\u00e9 serait alors Rarement ou N\u00e9gligeable. Le probl\u00e8me est que le syst\u00e8me d&rsquo;automatisation ne dispose d&rsquo;aucune donn\u00e9e de fiabilit\u00e9 et que, dans le cadre d&rsquo;une approche prudente, il ne peut \u00eatre pris en compte dans cette analyse. Si la personne reste en permanence \u00e0 proximit\u00e9 du robot, tant qu&rsquo;elle se trouve dans la zone, la probabilit\u00e9 d&rsquo;occurrence est alors tr\u00e8s \u00e9lev\u00e9e. Il convient donc de tenir compte de l&rsquo;endroit o\u00f9 la personne travaille normalement et du fait qu&rsquo;en cas de d\u00e9marrage inattendu, la personne peut se trouver dans l&rsquo;espace de fonctionnement du robot. Plus l&rsquo;espace de fonctionnement est \u00e9troit, plus la probabilit\u00e9 est \u00e9lev\u00e9e.<\/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:flex-row\">\n\n    \n\n                    <div \n                class=\"order-1 relative w-full md:w-3\/4\"\n            >\n                <div\n                    class=\"pt-6 space-y-6 w-full md:pt-0 md:space-y-4 lg:space-y-8 xl:space-y-9 md:pr-12 xl:pr-24\"\n                >\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                    Probabilit\u00e9 d&rsquo;\u00e9viter ou de limiter le dommage (Av)    <\/h2>\n        <\/div>\n    \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>Ce param\u00e8tre indique s&rsquo;il est possible ou non d&rsquo;\u00e9viter ou de limiter les dommages en cas d&rsquo;\u00e9v\u00e9nement dangereux.<br \/>\nLa possibilit\u00e9 peut \u00eatre estim\u00e9e en tenant compte des aspects suivants :<\/p>\n<ul>\n<li>Comp\u00e9tences de l&rsquo;utilisateur de la machine.<\/li>\n<li>Vitesse du danger.<\/li>\n<li>Conscience du risque.<\/li>\n<li>Capacit\u00e9 de r\u00e9action.<\/li>\n<\/ul>\n<p>En ce qui concerne les comp\u00e9tences et les aptitudes, la norme pr\u00e9cise que les aptitudes humaines ne peuvent \u00eatre prises en compte plus d&rsquo;une fois pour chaque fonction de s\u00e9curit\u00e9. Il existe trois niveaux pour Av.<\/p>\n<\/div>                <\/div>\n            <\/div>\n        \n                    <div\n                class=\"h-auto order-2 mb-8 md:mb-0   overflow-hidden shadow-content-image w-full md:w-1\/2\"\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=\"116\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-19-1-150x116.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 300px)\"\r\n                                width=\"300\"\r\n                                height=\"68\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-19-1-300x68.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 512px)\"\r\n                                width=\"512\"\r\n                                height=\"116\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-19-1.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 512px)\"\r\n                                width=\"512\"\r\n                                height=\"116\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-19-1.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                            <img\r\n                            class=\"a-image transparent border-image h-auto  w-full mx-auto\"\r\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/08\/Capture-19-1.png.webp\"\r\n                                                        title=\"Capture 19\"\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>\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                    Exemple d&rsquo;utilisation du tableau    <\/h2>\n        <\/div>\n                <\/div>\n        \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>Toujours dans le cas d&rsquo;une presse \u00e0 chargement manuel, la cons\u00e9quence de l&rsquo;\u00e9v\u00e9nement dangereux est une blessure irr\u00e9versible, pouvant aller jusqu&rsquo;\u00e0 la perte d&rsquo;une main : Se= 4.<\/p>\n<p>Tous les autres param\u00e8tres doivent \u00eatre additionn\u00e9s pour s\u00e9lectionner la classe.<br \/>\n&#8211; Un op\u00e9rateur est expos\u00e9 au danger plusieurs fois par jour -&gt;Fr= 5<br \/>\n&#8211; l&rsquo;\u00e9v\u00e9nement dangereux peut se produire -&gt;Pr = 3<br \/>\n&#8211; Le danger peut \u00eatre \u00e9vit\u00e9 -&gt;Av = 3<\/p>\n<p>La somme de Fr, Pr et Av (5 + 3 + 3) = 11<br \/>\nLe syst\u00e8me de contr\u00f4le li\u00e9 \u00e0 la s\u00e9curit\u00e9 doit atteindre un niveau SIL 3.<\/p>\n<p>Le document [55] est une bonne analyse des diff\u00e9rences entre l&rsquo;ISO 13849-1 et la IEC 62061 pour la d\u00e9termination du niveau de fiabilit\u00e9 requis.<\/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>L&rsquo;annexe A de la norme IEC 62061 fournit une m\u00e9thode pour estimer le SIL (Safety Integrity Level) requis d&rsquo;un syst\u00e8me de contr\u00f4le li\u00e9 \u00e0 la s\u00e9curit\u00e9.<\/p>\n","protected":false},"author":182,"featured_media":41789,"parent":36437,"menu_order":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"normative-tecniche":[165],"class_list":["post-41805","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>D\u00e9termination du SIL requis (SILr) selon la norme IEC 62061 - Gt-Engineering<\/title>\n<meta name=\"robots\" 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