{"id":38630,"date":"2023-05-08T10:52:28","date_gmt":"2023-05-08T09:52:28","guid":{"rendered":"https:\/\/www.gt-engineering.it\/?post_type=normativa_tecnica&#038;p=38630"},"modified":"2023-07-12T10:02:01","modified_gmt":"2023-07-12T09:02:01","slug":"categorie-b-et-categorie-1","status":"publish","type":"normativa_tecnica","link":"https:\/\/www.gt-engineering.it\/fr\/reglements-techniques\/normes-en-iso\/en-iso-13849-1-securite-fonctionnelle-des-machines\/categorie-b-et-categorie-1\/","title":{"rendered":"Cat\u00e9gorie B et cat\u00e9gorie 1"},"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 flex-col\">\n\n    \n\n                    <div \n                class=\"order-2 relative w-full\"\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\"\n                >\n                    \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>Les sous-syst\u00e8mes de la cat\u00e9gorie B doivent utiliser les<strong> principes de s\u00e9curit\u00e9 de base<\/strong>, d\u00e9taill\u00e9s dans la norme ISO 13849-2 [14], et doivent \u00eatre con\u00e7us conform\u00e9ment aux normes pertinentes. Cela devrait garantir qu&rsquo;ils peuvent r\u00e9sister aux contraintes de fonctionnement pr\u00e9vues et aux influences du mat\u00e9riau trait\u00e9, comme les d\u00e9tergents (gr\u00e2ce, par exemple, \u00e0 l&rsquo;utilisation de l&rsquo;acier inoxydable) ou \u00e0 d&rsquo;autres influences externes pertinentes, comme les vibrations m\u00e9caniques.<br \/>\nLe sch\u00e9ma fonctionnel de fiabilit\u00e9 d&rsquo;une cat\u00e9gorie B est illustr\u00e9 \u00e0 la figure 6.3. Il est repr\u00e9sent\u00e9 comme ayant une entr\u00e9e, une logique et une sortie. Cependant, chaque cat\u00e9gorie est applicable \u00e0 un sous-syst\u00e8me : soit un sous-syst\u00e8me d&rsquo;entr\u00e9e, soit un sous-syst\u00e8me de sortie, par exemple. Il ne faut donc pas se laisser d\u00e9concerter par la figure : elle montre un sous-syst\u00e8me et pas n\u00e9cessairement un syst\u00e8me de contr\u00f4le li\u00e9 \u00e0 la s\u00e9curit\u00e9.<\/p>\n<\/div>                <\/div>\n            <\/div>\n        \n                    <div\n                class=\"h-auto order-2   mt-6 md:mt-4 lg:mt-8 xl:mt-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\/07\/Screenshot-2023-05-08-115445-1.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=\"86\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/07\/Screenshot-2023-05-08-115445-1.png-300x86.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 675px)\"\r\n                                width=\"675\"\r\n                                height=\"193\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/07\/Screenshot-2023-05-08-115445-1.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 675px)\"\r\n                                width=\"675\"\r\n                                height=\"193\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/07\/Screenshot-2023-05-08-115445-1.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\/07\/Screenshot-2023-05-08-115445-1.png.webp\"\r\n                                                        title=\"Screenshot-2023-05-08-115445-1.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>\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>Avec cette cat\u00e9gorie, il n&rsquo;est pas n\u00e9cessaire d&rsquo;avoir une couverture de diagnostic et les consid\u00e9rations CCF ne sont pas pertinentes ; le PL maximum r\u00e9alisable est<strong> PL b<\/strong>.<br \/>\n\u00c9tant donn\u00e9 qu&rsquo;il s&rsquo;agit d&rsquo;un canal unique, un seul d\u00e9faut peut entra\u00eener la perte de la sous-fonction de s\u00e9curit\u00e9.<br \/>\nDans la cat\u00e9gorie 1, les m\u00eames exigences que celles de la cat\u00e9gorie B s&rsquo;appliquent ; en outre, des principes de s\u00e9curit\u00e9 \u00e9prouv\u00e9s doivent \u00eatre suivis. En outre, la cat\u00e9gorie 1 est la seule \u00e0 exiger l&rsquo;utilisation de <strong>composants \u00e9prouv\u00e9s<\/strong>. Le sch\u00e9ma fonctionnel de s\u00e9curit\u00e9 est le m\u00eame que pour la cat\u00e9gorie B. Il n&rsquo;y a pas de couverture de diagnostic ; les consid\u00e9rations CCF ne sont pas pertinentes et le<strong> PL maximal r\u00e9alisable est PL c.<\/strong><br \/>\nUne d\u00e9faillance peut entra\u00eener la perte de la fonction de s\u00e9curit\u00e9 ; cependant, le MTTFD d&rsquo;une seule voie dans la cat\u00e9gorie 1 est plus \u00e9lev\u00e9 que dans la cat\u00e9gorie B ; par cons\u00e9quent, la perte de la fonction de s\u00e9curit\u00e9 est moins probable.<\/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>Les sous-syst\u00e8mes de la cat\u00e9gorie B doivent utiliser les principes de s\u00e9curit\u00e9 de base, d\u00e9taill\u00e9s dans la norme ISO 13849-2 [14]<\/p>\n","protected":false},"author":182,"featured_media":38631,"parent":38606,"menu_order":3,"template":"","meta":{"_acf_changed":false,"footnotes":""},"normative-tecniche":[164],"class_list":["post-38630","normativa_tecnica","type-normativa_tecnica","status-publish","has-post-thumbnail","hentry","tipologia_normativa-normes-en-iso"],"acf":{"sottotitolo":"Temps moyen de d\u00e9faillance (MTTF)","allegati":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - 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