{"id":49317,"date":"2025-08-07T07:38:42","date_gmt":"2025-08-07T06:38:42","guid":{"rendered":"https:\/\/www.gt-engineering.it\/?post_type=normativa_tecnica&#038;p=49317"},"modified":"2026-02-09T12:59:42","modified_gmt":"2026-02-09T11:59:42","slug":"iec-ts-60079-42","status":"publish","type":"normativa_tecnica","link":"https:\/\/www.gt-engineering.it\/fr\/reglements-techniques\/normes-atex\/iec-ts-60079-42\/","title":{"rendered":"IEC TS 60079-42"},"content":{"rendered":"\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-2xs\"\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-primary font-heading text-lg lg:text-xl font-normal mt-2 first:mt-0\">\n                    Introduction: port\u00e9e    <\/h2>\n        <\/div>\n                <\/div>\n        \n                    <div\n                class=\"h-auto mb-6 md:mb-4 lg:mb-8 xl:mb-9  float-right ml-6 md:ml-4 lg:ml-8 xl:ml-9 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\/2025\/08\/Senza-titolo-81-150x150.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=\"165\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-81-300x165.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 768px)\"\r\n                                width=\"768\"\r\n                                height=\"423\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-81-768x423.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 1024px)\"\r\n                                width=\"1024\"\r\n                                height=\"565\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-81-1024x565.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\/2025\/08\/Senza-titolo-81.png.webp\"\r\n                                                        title=\"Senza titolo\"\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>Cette partie de la norme IEC 60079, qui est une <strong>Specification technique,\u00a0<\/strong>fournit des conseiles aux fabricants d&rsquo;\u00e9quipments dans lesquels des dispositifs de s\u00e9curite \u00e9lectrique (\u00ab\u00a0SIL Rated\u00a0\u00bb) sont utilis\u00e9s pour\u00a0 r\u00e9duire la probabilit\u00e9 que des sources d&rsquo;inflammation potentielles deviennent efficaces dans les \u00e8quipments Ex situ\u00e9s dans des atmosph\u00e8res explosives.<\/p>\n<p>L&rsquo;id\u00e9e est qu&rsquo;un dispositif de s\u00e9curit\u00e9 remplit une fonction de s\u00e9curit\u00e9 pour contr\u00f4ler une source d&rsquo;inflammation potentielle pr\u00e9sente das un \u00e9quipement Ex install\u00e9 dans une atmosph\u00e8re explosive.<\/p>\n<p>Cette approche consistant \u00e0 utiliser des composants class\u00e9s SIL pour r\u00e9duire le risque d&rsquo;une atmosph\u00e9re explosive peut \u00e9galement \u00eatre appliqu\u00e9e \u00e0 une combinaison d&rsquo;\u00e9l\u00e9ments :<\/p>\n<ul>\n<li>Capteur<\/li>\n<li>Syst\u00e8me logique<\/li>\n<li>\u00c9l\u00e9ment final<\/li>\n<\/ul>\n<p>Un dispositif de s\u00e9curit\u00e9 peut \u00eatre une mesure permettant d&rsquo;atteindre un EPL requis de l&rsquo;\u00e9quipment Ex par rapport \u00e0 une source d&rsquo;inflammation potentielle.<\/p>\n<p>L&rsquo;association du dispositif de s\u00e9curit\u00e9 et de l&rsquo;\u00e9quipment Ex pourrait alors \u00eatre conforme aux normes pertinentes des s\u00e9ries CEI 60079 et ISO 80079 concernant le niveau de protection de l&rsquo;\u00e9quipement. Cependant, l&rsquo;augmentation de l&rsquo;EPL d&rsquo;un \u00e9quipement Ex par le simple ajout d&rsquo;un dispositif de s\u00e9curit\u00e9 n&rsquo;est pas l&rsquo;objectif de ce document.<\/p>\n<p>Une fonction de s\u00e9curit\u00e9, avec des exigences de base, et consid\u00e9r\u00e9e comme fonctionnant en mode faible demande, doit r\u00e9pondre \u00e0 une source d&rsquo;inflammation potentielle de l&rsquo;EEUC ( Ex-Equipment unde control) avant qu&rsquo;elle ne devienne effective: en d&rsquo;autres termes, un Ex Equipment qui contient une source d&rsquo;inflammation potentielle qui est contr\u00f4l\u00e9e par un dispositif de s\u00e9curit\u00e9.<\/p>\n<p>La d\u00e9tection d&rsquo;une d\u00e9faillance dangereuse dans un dispositif de s\u00e9curit\u00e9 (par des tests de diagnostic, des tests de preuve ou par tout autre moyen) doit entra\u00eener une action sp\u00e9cifi\u00e9e pour atteindre ou maintenir un \u00e9tat s\u00fbr de l&rsquo;EEUC.<\/p>\n<section id=\"\" class=\"bow-gte-testo-media u-spacer-none\" data-name=\"Contenuto testuale con immagine\">\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<div class=\"clear-both\"><\/div>\n<\/div>\n<\/section>\n<section class=\"mt-section-base\">\n<div class=\"px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop\"><\/div>\n<\/section>\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>Cette partie de la norme IEC 60079, qui est une Specification technique, fournit des conseiles aux fabricants d\u2019\u00e9quipments<\/p>\n","protected":false},"author":2,"featured_media":49238,"parent":0,"menu_order":10,"template":"","meta":{"_acf_changed":false,"footnotes":""},"normative-tecniche":[169],"class_list":["post-49317","normativa_tecnica","type-normativa_tecnica","status-publish","has-post-thumbnail","hentry","tipologia_normativa-normes-atex"],"acf":{"sottotitolo":"","allegati":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - 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