{"id":17261,"date":"2026-10-29T15:10:34","date_gmt":"2026-10-29T14:10:34","guid":{"rendered":"https:\/\/ventsystems.de\/lexikon\/spannungsfall\/"},"modified":"2026-10-29T15:10:34","modified_gmt":"2026-10-29T14:10:34","slug":"spannungsfall","status":"publish","type":"page","link":"https:\/\/ventsystems.de\/fr\/lexikon\/spannungsfall\/","title":{"rendered":"Chute de tension"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Le <strong>Chute de tension<\/strong> est la part de la tension perdue le long d\u2019un c\u00e2ble. Plus le c\u00e2ble est long, la section petite et le courant \u00e9lev\u00e9, plus elle est importante.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Pourquoi est-ce important en 24 V ?<\/h2>\n\n\n<p class=\"wp-block-paragraph\">En 24 V, quelques volts perdus repr\u00e9sentent une part importante. Si le moteur re\u00e7oit trop peu de tension, il ralentit, manque de force ou s\u2019arr\u00eate. On admet en g\u00e9n\u00e9ral au plus 5 % de chute, soit environ 1,2 V.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Formule<\/h2>\n\n\n<p class=\"wp-block-paragraph\">Chute de tension \u2248 2 \u00d7 longueur \u00d7 courant \u00f7 (56 \u00d7 section). 56 est la conductivit\u00e9 du cuivre en m\/(\u03a9\u00b7mm\u00b2).<\/p>\n\n\n<p class=\"wp-block-paragraph\">Exemple : 20 m de c\u00e2ble, 2 A et 1,5 mm\u00b2 donnent environ 0,95 V de chute de tension.<\/p>\n\n\n<p class=\"wp-block-paragraph\">En savoir plus : <a href=\"\/fr\/dictionnaire\/section-de-cable\/\">Section de c\u00e2ble avec tableau<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Der Spannungsfall ist der Teil der Spannung, der auf einer Leitung verloren geht. Je l\u00e4nger die Leitung, je kleiner der Querschnitt und je h\u00f6her der Strom, desto gr\u00f6\u00dfer ist er. Warum ist das bei 24 V wichtig? Bei 24 V machen schon wenige Volt Verlust einen gro\u00dfen Anteil aus. Kommt am Antrieb zu wenig Spannung [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":16230,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-17261","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/ventsystems.de\/fr\/wp-json\/wp\/v2\/pages\/17261","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ventsystems.de\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ventsystems.de\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/fr\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/fr\/wp-json\/wp\/v2\/comments?post=17261"}],"version-history":[{"count":0,"href":"https:\/\/ventsystems.de\/fr\/wp-json\/wp\/v2\/pages\/17261\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/fr\/wp-json\/wp\/v2\/pages\/16230"}],"wp:attachment":[{"href":"https:\/\/ventsystems.de\/fr\/wp-json\/wp\/v2\/media?parent=17261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}