{"id":19987,"date":"2025-11-21T01:54:00","date_gmt":"2025-11-20T17:54:00","guid":{"rendered":"https:\/\/viox.com\/?p=19987"},"modified":"2025-11-14T14:54:42","modified_gmt":"2025-11-14T06:54:42","slug":"what-is-breaker-selectivity-coordination-guide","status":"publish","type":"post","link":"https:\/\/test.viox.com\/fr\/what-is-breaker-selectivity-coordination-guide\/","title":{"rendered":"Qu'est-ce que la \u201c s\u00e9lectivit\u00e9 \u201d ? Guide d'un professionnel sur la coordination des disjoncteurs (et comment \u00e9viter un \u201c combat loyal \u201d)"},"content":{"rendered":"<div class=\"product-intro\">\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-19989\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22.webp\" alt=\"What is &quot;Selectivity&quot;\" width=\"800\" height=\"800\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/What-is-22Selectivity22-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>Un apprenti ing\u00e9nieur demande : \u201c Mon alimentation de service est de 100 A. Mon disjoncteur principal d'usine doit-il \u00e9galement \u00eatre de 100 A ? \u201d<\/p>\n<p>Tout d'abord, corrigeons doucement la terminologie, car elle r\u00e9v\u00e8le le secret de \u201c niveau Master \u201d. Un disjoncteur principal d'usine n'est pas un \u201c MCB \u201d (un <em>Miniature<\/em> Circuit Breaker, le type \u201c domestique \u201d). C'est un <strong>&#8220;<a href=\"https:\/\/test.viox.com\/fr\/mccb\/\">MCCB<\/a>&#8220;<\/strong> MCCB <em>(un<\/em> Moulded Case <strong>&#8220;<a href=\"https:\/\/test.viox.com\/fr\/complete-guide-to-air-circuit-breakers-acb\/\">ACB<\/a>&#8220;<\/strong> Circuit Breaker) ou un <em>Air<\/em> ACB\u201c<\/p>\n<p>(un <em>r\u00e9el<\/em> Air <strong>\u201cCircuit Breaker). Ce sont des \u201d b\u00eates industrielles \u00bb.\u201d<\/strong> Mais le.<\/p>\n<p>probl\u00e8me est sa question. Il propose un<\/p>\n<p>\u00ab Combat \u00e9quitable \u00bb.<\/p>\n<p>Toi <em>(100 A contre 100 A).<\/em> En mati\u00e8re de protection \u00e9lectrique, que se passe-t-il lors d'un \u201c combat \u00e9quitable \u201d ? <strong>\u201cUne catastrophe.\u201d<\/strong> Ne jamais.<\/p>\n<hr \/>\n<h2>vouloir un \u201c combat \u00e9quitable \u201d. Vous voulez une \u00ab hi\u00e9rarchie \u00bb. Le terme professionnel pour cela est<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-19990\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity.webp\" alt=\"The &quot;Water Pipe&quot; Analogy: What is Selectivity?\" width=\"800\" height=\"800\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Water-Pipe22-Analogy-What-is-Selectivity-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><strong>S\u00e9lectivit\u00e9<\/strong> \u201c S\u00e9lectivit\u00e9 \u201d, <em>et voici pourquoi c'est le concept le plus important dans la conception de l'alimentation.<\/em> L'analogie du \u00ab tuyau d'eau \u00bb : Qu'est-ce que la s\u00e9lectivit\u00e9 ? <em>(\u00e9galement appel\u00e9e \u00ab Discrimination \u00bb) signifie que le<\/em> plus petit <em>disjoncteur (celui qui est le<\/em>.<\/p>\n<p>plus proche <strong>\u201cdu d\u00e9faut) se d\u00e9clenche\u2018<\/strong><\/p>\n<ul>\n<li><strong>en premier<\/strong> This is the <strong>\u201cLe moment \u201d Aha ! \u00bb est\u201d<\/strong> \u00ab L'analogie du 'tuyau d'eau' \u00bb.<\/li>\n<li><strong>Le fusible de service (100 A) :<\/strong> This is the <strong>\u201c Conduite d'eau principale de la ville \u201d<\/strong> sous la rue.<\/li>\n<li><strong>La faute :<\/strong> Votre disjoncteur principal (80 A) :.<\/li>\n<\/ul>\n<p><strong>\u00ab Robinet d'arr\u00eat \u00bb<\/strong> sous votre \u00e9vier de cuisine. <em>Votre robinet de cuisine commence \u00e0 fuir (un \u00ab d\u00e9faut \u00bb).<\/em> Le but : <em>(100 A contre 100 A).<\/em> Vous voulez <em>s\u00e9lectivement<\/em> fermer le \u00ab Robinet d'arr\u00eat \u00bb. Vous ne.<\/p>\n<p>voulez pas qu'une simple fuite de robinet coupe la \u00ab Conduite d'eau principale de la ville \u00bb, plongeant votre <strong>\u201cusine enti\u00e8re\u201d<\/strong> dans l'obscurit\u00e9. <em>Cela r\u00e9v\u00e8le la philosophie de base :<\/em> \u00ab Vous prot\u00e9gez le v\u00f4tre, je prot\u00e8ge le mien. \u00bb <em>votre<\/em> Le fusible de 100 A du service public est l\u00e0 pour prot\u00e9ger <em>votre<\/em> leur.<\/p>\n<hr \/>\n<h2>transformateur contre<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-19991\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping.webp\" alt=\"The Horror Story- &quot;The 'Shameful Call'&quot; (aka Nuisance Tripping)\" width=\"800\" height=\"800\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-Horror-Story-22The-Shameful-Call22-aka-Nuisance-Tripping-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>l'incendie. Votre disjoncteur de 80 A est l\u00e0 pour prot\u00e9ger<\/p>\n<p>votre <strong>\u201cpanneau contre le d\u00e9faut de votre machine. Ils ne sont pas dans la m\u00eame \u00e9quipe.\u201d<\/strong><\/p>\n<p>L'histoire d'horreur : \u00ab L'appel honteux \u00bb (alias D\u00e9clenchement intempestif).<\/p>\n<p><strong>Alors, que se passe-t-il si vous ignorez cela ? Que se passe-t-il si vous cr\u00e9ez ce \u00ab Combat \u00e9quitable \u00bb (100 A contre 100 A) ?<\/strong> Vous obtenez ce sc\u00e9nario de \u201c cauchemar \u201d :.<\/p>\n<p><strong>\u201c D\u00e9clenchement intempestif \u201d.<\/strong> Il est 3 heures du matin. Une seule machine sur votre ligne a un court-circuit grave (mais g\u00e9rable). <em>La course :<\/em> Votre disjoncteur principal de 100 A et le fusible principal de 100 A du service public d\u00e9tectent tous deux le d\u00e9faut massif. Ils \u00ab courent \u00bb pour voir qui peut se d\u00e9clencher en premier.<\/p>\n<p><strong>(appliquant 0,23 kg de force \u00ab\u202fTRIP\u202f\u00bb).<\/strong><\/p>\n<ol>\n<li>gagnez <em>s\u00e9lectivement<\/em> Le \u00ab Cauchemar \u00bb :.<\/li>\n<li>Le fusible <em>en amont<\/em>.<\/li>\n<li>du service public gagne (ou les deux se d\u00e9clenchent). <em>du service public<\/em> Le fusible a saut\u00e9. Il est sur un poteau \u00e0 100 m\u00e8tres.<\/li>\n<li>Vous devez faire <strong>\u201cL'appel de la honte\u2018<\/strong> \u00e0 la compagnie d'\u00e9lectricit\u00e9.<\/li>\n<li>Vous attendez 4 heures (dans le noir) pour un camion de service public, qui vous remet ensuite une facture de $5 000 pour \u201cintervention d'urgence\u201d pour remplacer <em>Cela r\u00e9v\u00e8le la philosophie de base :<\/em> le fusible qui <em>votre<\/em> une mauvaise conception a fait exploser.<\/li>\n<\/ol>\n<blockquote><p><strong>fil<\/strong> Toi <em>(100 A contre 100 A).<\/em> veulent que le service public soit votre \u201cpremi\u00e8re ligne de d\u00e9fense\u201d. C'est <em>votre<\/em> travail. Ce \u201cd\u00e9clenchement intempestif\u201d \u00e9tait une \u201cd\u00e9faillance en cascade\u201d caus\u00e9e par un manque total de s\u00e9lectivit\u00e9.<\/p><\/blockquote>\n<hr \/>\n<h2>\u201cL'outil du ma\u00eetre\u201d : Pourquoi 80A contre 100A est la <em>Mauvaise<\/em> Question<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-19992\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question.webp\" alt=\"The &quot;Master's Tool&quot;: Why 80A vs. 100A is the Wrong Question\" width=\"800\" height=\"800\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question-300x300.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question-150x150.webp 150w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question-768x768.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question-12x12.webp 12w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question-600x600.webp 600w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/The-22Masters-Tool22-Why-80A-vs.-100A-is-the-Wrong-Question-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>\u201cD'accord, je comprends !\u201d dit l'apprenti. \u201cJe vais juste installer un disjoncteur de 80A pour \u2018battre\u2019 leur 100A !\u201d<\/p>\n<p>C'est le pi\u00e8ge de \u201cl'amateur\u201d. C'est un <em>deviner<\/em>.<\/p>\n<p>Ce disjoncteur de 80A <em>pourrait<\/em> \u00eatre s\u00e9lectif pour une <em>petite surcharge<\/em> (comme 90A). Mais dans un <em>court-circuit massif<\/em> (par exemple, 2 000 A), les disjoncteurs de 80 A et de 100 A voient un \u201cincendie de niveau 9\u201d et essaieront de se d\u00e9clencher <em>imm\u00e9diatement<\/em>. Vous <em>continue<\/em> pourriez avoir une \u201ccondition de concurrence\u201d.\u201d<\/p>\n<p>\u201cLes \u201damateurs\" devinent avec <em>Amp\u00e8res<\/em>. Les \u201cpros\u201d <em>prouvent<\/em> avec <em>Temps<\/em>.<\/p>\n<p>L\u201c\u201doutil du ma\u00eetre\" est la <strong>Courbe de temps-courant (TCC)<\/strong>.<\/p>\n<ul>\n<li>C'est \u201cl'ADN\u201d ou le \u201ctableau des temps de r\u00e9action\u201d pour chaque disjoncteur et fusible.<\/li>\n<li>Un \u201cpro\u201d (comme un ing\u00e9nieur VIOX) effectue une <strong>\u201c\u00c9tude de coordination\u201d<\/strong> ou <strong>\u201c\u00c9tude de s\u00e9lectivit\u00e9\u201d.\u201d<\/strong><\/li>\n<li>Nous superposons la courbe TCC de votre <em>en aval<\/em> disjoncteur (le \u201cSoldat\u201d) avec la courbe TCC du <em>La course :<\/em> fusible (le \u201cG\u00e9n\u00e9ral\u201d).<\/li>\n<\/ul>\n<p><strong>\u00ab Robinet d'arr\u00eat \u00bb<\/strong> Nous devons nous assurer que pour <em>tout<\/em> d\u00e9faut donn\u00e9 (de 100A \u00e0 10 000A), la courbe du \u201cSoldat\u201d est <em>perd toujours<\/em> <strong>\u201cen dessous et \u00e0 gauche\u201d<\/strong> de la courbe du \u201cG\u00e9n\u00e9ral\u201d. Il devrait y avoir <em>pas d'espace blanc<\/em> o\u00f9 ils se chevauchent.<\/p>\n<p>C'est un <em>garantir<\/em> que notre \u201cSoldat\u201d (votre MCCB VIOX) va <em>perd toujours<\/em> gagner la \u201ccourse\u201d et contenir la \u201cbataille\u201d <em>avant*<\/em> que le \u201cG\u00e9n\u00e9ral\u201d (le fusible du service public) n'entende m\u00eame le coup de feu.<\/p>\n<hr \/>\n<h2>Conclusion : En protection, \u201cHi\u00e9rarchie\u201d est \u201cS\u00e9curit\u00e9\u201d<\/h2>\n<p>Toi <em>(100 A contre 100 A).<\/em> veulent un <strong>\u201cCombat \u00e9quitable\u201d.\u201d<\/strong> Vous voulez une <strong>\u201cHi\u00e9rarchie\u201d.\u201d<\/strong><\/p>\n<p><strong>\u201cLa \u201dS\u00e9lectivit\u00e9\"<\/strong> est l'art de s'assurer que vos \u201cSoldats\u201d (vos disjoncteurs individuels) r\u00e9solvent le probl\u00e8me <em>bien avant<\/em> que les \u201cG\u00e9n\u00e9raux\u201d (votre disjoncteur principal ou le service public) ne soient oblig\u00e9s d'agir.<\/p>\n<p>C'est ce qui s\u00e9pare un panneau \u201cprofessionnel\u201d d'un panneau \u201camateur\u201d.<\/p>\n<p>Les amateurs devinent (80A contre 100A). Les pros <em>calculent<\/em>.<\/p>\n<p>VIOX fournit des donn\u00e9es compl\u00e8tes sur la courbe TCC pour tous nos MCCB et ACB, vous permettant de concevoir un syst\u00e8me vraiment <em>s\u00e9lectif<\/em> et <em>s\u00fbr<\/em> syst\u00e8me. Ne provoquez pas un \u201cappel honteux\u201d.\u201d<\/p>\n<p><strong>Concevez avec certitude. Parcourez nos MCCB VIOX et obtenez les donn\u00e9es TCC dont vous avez besoin.<\/strong><\/p>\n<hr \/>\n<h3>Pr\u00e9cision Technique Note<\/h3>\n<pre><code>**Normes et sources de r\u00e9f\u00e9rence** <a href=\"https:\/\/test.viox.com\/fr\/mcb\/\">MCBs<\/a> (Disjoncteurs miniatures, IEC 60898), MCCB (Disjoncteurs bo\u00eetier moul\u00e9, IEC 60947-2) et ACB (Disjoncteurs \u00e0 air, IEC 60947-2) et leurs applications est correcte.\n<\/code><\/pre>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>An apprentice engineer asks, &#8220;My utility supply is 100A. Should my factory&#8217;s main breaker also be 100A?&#8221; First, let&#8217;s gently correct the terminology, as it reveals the &#8220;Master-level&#8221; secret. A factory main isn&#8217;t an &#8220;MCB&#8221; (a Miniature Circuit Breaker, the &#8220;household&#8221; kind). It&#8217;s an &#8220;MCCB&#8220; (a Moulded Case Circuit Breaker) or an &#8220;ACB&#8220; (an Air [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":19996,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-19987","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/fr\/wp-json\/wp\/v2\/posts\/19987","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/fr\/wp-json\/wp\/v2\/comments?post=19987"}],"version-history":[{"count":4,"href":"https:\/\/test.viox.com\/fr\/wp-json\/wp\/v2\/posts\/19987\/revisions"}],"predecessor-version":[{"id":19995,"href":"https:\/\/test.viox.com\/fr\/wp-json\/wp\/v2\/posts\/19987\/revisions\/19995"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/fr\/wp-json\/wp\/v2\/media\/19996"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/fr\/wp-json\/wp\/v2\/media?parent=19987"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/fr\/wp-json\/wp\/v2\/categories?post=19987"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/fr\/wp-json\/wp\/v2\/tags?post=19987"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}