{"id":38712,"date":"2023-06-19T09:26:45","date_gmt":"2023-06-19T08:26:45","guid":{"rendered":"https:\/\/www.gt-engineering.it\/?post_type=normativa_tecnica&#038;p=38712"},"modified":"2023-07-12T14:38:46","modified_gmt":"2023-07-12T13:38:46","slug":"temperature-ambiante","status":"publish","type":"normativa_tecnica","link":"https:\/\/www.gt-engineering.it\/fr\/reglements-techniques\/normes-canadienne\/c22-2-n-286-tableaux-de-commande-et-ensembles-industriels\/temperature-ambiante\/","title":{"rendered":"Temp\u00e9rature ambiante"},"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\/termometr-pokojowy-205-cm-jasne-drewno-150x150.jpg.webp\"\n                                type=\"image\/webp\"\n                            \/>\n                                                                                <source\n                                media=\"(max-width: 300px)\"\n                                width=\"300\"\n                                height=\"300\"\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/termometr-pokojowy-205-cm-jasne-drewno-300x300.jpg.webp\"\n                                type=\"image\/webp\"\n                            \/>\n                                                                                <source\n                                media=\"(max-width: 768px)\"\n                                width=\"768\"\n                                height=\"768\"\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/termometr-pokojowy-205-cm-jasne-drewno-768x768.jpg.webp\"\n                                type=\"image\/webp\"\n                            \/>\n                                                                                <source\n                                media=\"(max-width: 1000px)\"\n                                width=\"1000\"\n                                height=\"1000\"\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/06\/termometr-pokojowy-205-cm-jasne-drewno.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\/termometr-pokojowy-205-cm-jasne-drewno.jpg.webp\"\n                                                        width=\"1000\"\n                            height=\"1000\"\n                                                                                    title=\"termometr-pokojowy-205-cm-jasne-drewno\"\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><strong>En ce qui concerne la temp\u00e9rature ambiante sup\u00e9rieure \u00e0 40\u00b0C<\/strong>, elle \u00e9tait \u00e9galement autoris\u00e9e dans la deuxi\u00e8me \u00e9dition, mais aucun crit\u00e8re n&rsquo;\u00e9tait donn\u00e9. Rappelons que depuis 2022, la norme UL 508A autorise \u00e9galement l&rsquo;installation d&rsquo;un panneau de contr\u00f4le industriel \u00e0 une temp\u00e9rature ambiante sup\u00e9rieure \u00e0 40\u00b0C.<\/p>\n<p>La troisi\u00e8me \u00e9dition de la norme C22.2 N\u00b0 286 donne de bonnes indications : en voici un extrait<\/p>\n<blockquote><p><strong>[C22.2 N\u00b0286 : 2023] 4.12.9<\/strong> Lorsqu&rsquo;un panneau de commande est destin\u00e9 \u00e0 \u00eatre install\u00e9 dans un environnement o\u00f9 la temp\u00e9rature ambiante externe peut parfois \u00eatre sup\u00e9rieure \u00e0 40\u00b0C, une ou plusieurs des dispositions suivantes doivent s&rsquo;appliquer :<\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<ol>\n<li><em>Des moyens doivent \u00eatre pr\u00e9vus pour contr\u00f4ler l&rsquo;ambiance interne du panneau, tels que la ventilation, des moyens de refroidissement forc\u00e9s, etc.<\/em><\/li>\n<li><em>Les composants utilis\u00e9s dans le panneau<strong> doivent \u00eatre adapt\u00e9s<\/strong> \u00e0 la temp\u00e9rature ambiante \u00e9lev\u00e9e ou compens\u00e9s par d&rsquo;autres moyens, en particulier en ce qui concerne les composants d\u00e9pendant de la temp\u00e9rature tels que les disjoncteurs, les \u00e9l\u00e9ments magn\u00e9tiques, etc.<\/em><\/li>\n<li><em><strong>Le respect des limites de temp\u00e9rature<\/strong> et le bon fonctionnement pr\u00e9vu doivent \u00eatre d\u00e9montr\u00e9s par des m\u00e9thodes applicables telles que l&rsquo;essai de temp\u00e9rature de l&rsquo;article 7.2.<\/em><\/li>\n<\/ol>\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>En ce qui concerne la temp\u00e9rature ambiante sup\u00e9rieure \u00e0 40\u00b0C, elle \u00e9tait \u00e9galement autoris\u00e9e dans la deuxi\u00e8me \u00e9dition, mais aucun crit\u00e8re n&rsquo;\u00e9tait donn\u00e9.<\/p>\n","protected":false},"author":182,"featured_media":38706,"parent":38699,"menu_order":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"normative-tecniche":[166],"class_list":["post-38712","normativa_tecnica","type-normativa_tecnica","status-publish","has-post-thumbnail","hentry","tipologia_normativa-normes-canadienne"],"acf":{"sottotitolo":"","allegati":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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