{"id":43992,"date":"2023-12-04T11:10:00","date_gmt":"2023-12-04T10:10:00","guid":{"rendered":"https:\/\/www.gt-engineering.it\/?post_type=approfondimento&#038;p=43992"},"modified":"2026-04-14T15:39:02","modified_gmt":"2026-04-14T14:39:02","slug":"deuxieme-mise-a-la-terre","status":"publish","type":"approfondimento","link":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/securite-electrique\/deuxieme-mise-a-la-terre\/","title":{"rendered":"Deuxi\u00e8me mise \u00e0 la terre"},"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                    <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-2xl lg:text-3xl xl:text-4xl font-normal mt-2 first:mt-0\">\n                    LE DOUTE    <\/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\/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\/12\/double-bonding-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=\"225\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/12\/double-bonding-300x225.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=\"576\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/12\/double-bonding-768x576.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 1018px)\"\r\n                                width=\"1018\"\r\n                                height=\"764\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/12\/double-bonding.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\/12\/double-bonding.png.webp\"\r\n                                                        title=\"double bonding\"\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>Nous remarquons souvent que les constructeurs de machines, ou les utilisateurs, mettent le moteur \u00e0 la terre en utilisant deux c\u00e2bles PE: le premier \u00e0 l&rsquo;int\u00e9rieur du bornier du moteur et le second \u00e0 la carcasse ext\u00e9rieure. Est-ce obligatoire\u00a0?<\/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-primary font-heading text-2xl lg:text-3xl xl:text-4xl font-normal mt-2 first:mt-0\">\n                    CONSID\u00c9RATION 1    <\/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>Le point de d\u00e9part est \u00ab\u00a0la m\u00e8re\u00a0\u00bb de toutes les normes de s\u00e9curit\u00e9 \u00e9lectrique : IEC 60364-4-41. Dans cette norme, des crit\u00e8res sont pr\u00e9vus pour la protection contre les chocs \u00e9lectriques. La protection contre les chocs \u00e9lectriques couvre la protection dans des conditions de d\u00e9faillance : c&rsquo;est la nouvelle terminologie qui indique la protection contre les contacts indirects.<\/p>\n<blockquote><p>[IEC 60364-4-41: 2005] <em>410.3.4 Generally, the following protective measures may be applied: <\/em><\/p>\n<p><em>\u2013 automatic disconnection of supply (Clause 411), <\/em><\/p>\n<p><em>\u2013 double or reinforced insulation (Clause 412), <\/em><\/p>\n<p><em>\u2013 electrical separation for the supply of one item of current-using equipment (Clause 413), <\/em><\/p>\n<p><em>\u2013 SELV systems (Clause 414), <\/em><\/p>\n<p><em>&#8211; PELV systems (Clause 414) <\/em><\/p><\/blockquote>\n<p>La d\u00e9connexion automatique de l&rsquo;alimentation est de loin la m\u00e9thode la plus utilis\u00e9e pour se prot\u00e9ger contre les contacts indirects. Cela n\u00e9cessite :<\/p>\n<ul>\n<li>La mise \u00e0 la terre de toutes les parties conductrices expos\u00e9es<\/li>\n<li>Un dispositif de protection qui coupe automatiquement l&rsquo;alimentation \u00e9lectrique, dans un temps de d\u00e9connexion bien d\u00e9fini.<\/li>\n<\/ul>\n<p>La mise \u00e0 la terre d&rsquo;un ch\u00e2ssis de moteur est r\u00e9alis\u00e9e \u00e0 l&rsquo;aide d&rsquo;un seul c\u00e2ble PE connect\u00e9 au niveau de la borne de mise \u00e0 la terre, situ\u00e9e \u00e0 l&rsquo;int\u00e9rieur du bo\u00eetier de bornes de moteur. Il n&rsquo;est pas n\u00e9cessaire de connecter un second c\u00e2ble au cadre!<\/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-primary font-heading text-2xl lg:text-3xl xl:text-4xl font-normal mt-2 first:mt-0\">\n                    CONSID\u00c9RATION 2    <\/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>Mais alors pourquoi certains moteurs sont livr\u00e9s avec une seconde borne ? En effet, dans la norme CEI 60034-1 : <em>Machines \u00e9lectriques tournantes &#8211; Partie 1 : Caract\u00e9ristiques assign\u00e9es et caract\u00e9ristiques de fonctionnement<\/em>, la formulation suivante est pr\u00e9sente :<\/p>\n<blockquote><p><em>[CEI 60034-1: 2022] 11.1 Mise \u00e0 la terre de protection des machines<\/em><\/p>\n<p>[\u2026] <em>Dans le cas des machines de tension assign\u00e9e sup\u00e9rieure \u00e0 50 V en courant alternatif ou 120 V en courant continu, mais ne d\u00e9passant pas 1 000 V en courant alternatif ou 1 500 V en courant continu, la borne du conducteur de terre doit \u00eatre situ\u00e9e \u00e0 proximit\u00e9 des bornes de raccordement des conducteurs de phase, \u00e0 l\u2019int\u00e9rieur de la bo\u00eete \u00e0 bornes \u00e9ventuelle. Les machines de puissance (utile) assign\u00e9e sup\u00e9rieure \u00e0 100 kW (ou kVA) <u>doivent \u00e9galement comporter une borne de terre mont\u00e9e sur la carcasse<\/u>.<\/em><\/p><\/blockquote>\n<p>La raison est de faciliter la connexion d&rsquo;un c\u00e2ble de mise \u00e0 la terre, ou, si l&rsquo;utilisateur veut cr\u00e9er une deuxi\u00e8me boucle de d\u00e9faut. Cependant, ni la norme CEI 60364-4-41 ni la norme CEI 60204-1 ne requi\u00e8rent cette deuxi\u00e8me boucle de d\u00e9faut de terre.<\/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-primary font-heading text-2xl lg:text-3xl xl:text-4xl font-normal mt-2 first:mt-0\">\n                    CONCLUSION    <\/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\/2023\/12\/54321-150x150.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=\"225\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/12\/54321-300x225.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=\"577\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/12\/54321-768x577.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=\"770\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2023\/12\/54321-1024x770.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\/12\/54321.png.webp\"\r\n                                                        title=\"54321\"\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>Bien que certains moteurs soient livr\u00e9s avec deux bornes pour la mise \u00e0 la terre de la carcasse m\u00e9tallique, pour la protection contre les chocs \u00e9lectriques, il suffit de connecter la borne de mise \u00e0 la terre, situ\u00e9e \u00e0 l&rsquo;int\u00e9rieur du bo\u00eetier de bornes de moteur, \u00e0 un c\u00e2ble PE. Il n&rsquo;y a pas d&rsquo;exigence normative pour connecter <em>la borne de terre mont\u00e9e sur la carcasse<\/em> \u00e0 un c\u00e2ble de mise \u00e0 la terre.<\/p>\n<p>Par cons\u00e9quent, dans le cas o\u00f9 le moteur est uniquement dot\u00e9 d&rsquo;une borne de mise \u00e0 la terre \u00e0 l&rsquo;int\u00e9rieur de sa bo\u00eete \u00e0 bornes, il n&rsquo;y a aucune exigence normative pour effectuer une deuxi\u00e8me liaison sur le ch\u00e2ssis du moteur, comme dans l&rsquo;image ci-contre.<\/p>\n<p>&nbsp;<\/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>Nous remarquons souvent que les constructeurs de machines, ou les utilisateurs, mettent le moteur \u00e0 la terre en utilisant deux c\u00e2bles PE: le premier \u00e0 l&rsquo;int\u00e9rieur du bornier du moteur et le second \u00e0 la carcasse ext\u00e9rieure. Est-ce obligatoire\u00a0?<\/p>\n","protected":false},"author":2,"featured_media":43993,"parent":0,"menu_order":24,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tipologia_approfondimento":[158],"class_list":["post-43992","approfondimento","type-approfondimento","status-publish","has-post-thumbnail","hentry","tipologia_approfondimento-securite-electrique"],"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>Deuxi\u00e8me mise \u00e0 la terre - 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\/approfondissement\/securite-electrique\/deuxieme-mise-a-la-terre\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Deuxi\u00e8me mise \u00e0 la terre - Gt-Engineering\" \/>\n<meta property=\"og:description\" content=\"Nous remarquons souvent que les constructeurs de machines, ou les utilisateurs, mettent le moteur \u00e0 la terre en utilisant deux c\u00e2bles PE: le premier \u00e0 l&#039;int\u00e9rieur du bornier du moteur et le second \u00e0 la carcasse ext\u00e9rieure. 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