{"id":6653,"date":"2023-05-18T14:22:30","date_gmt":"2023-05-18T06:22:30","guid":{"rendered":"https:\/\/www.tosunlux.eu\/?p=6653"},"modified":"2023-05-18T14:36:35","modified_gmt":"2023-05-18T06:36:35","slug":"understanding-mcbs-and-their-importance-in-homes-and-industries","status":"publish","type":"post","link":"https:\/\/www.tosunlux.eu\/fr\/blog\/understanding-mcbs-and-their-importance-in-homes-and-industries\/","title":{"rendered":"Qu&#039;est-ce qu&#039;un MCB et son utilisation dans une maison ?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_63 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" >Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table des mati\u00e8res\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Basculer<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.tosunlux.eu\/fr\/blog\/understanding-mcbs-and-their-importance-in-homes-and-industries\/#Typical_Uses_for_Domestic_MCBs\" title=\"Utilisations typiques des MCB domestiques\">Utilisations typiques des MCB domestiques<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.tosunlux.eu\/fr\/blog\/understanding-mcbs-and-their-importance-in-homes-and-industries\/#There_are_five_uses_for_MCBs_that_you_may_not_be_aware_of\" title=\"Il existe cinq utilisations des MCB que vous ignorez peut-\u00eatre.\">Il existe cinq utilisations des MCB que vous ignorez peut-\u00eatre.<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>Un disjoncteur miniature est un dispositif \u00e9lectrom\u00e9canique qui prot\u00e8ge un circuit \u00e9lectrique contre la surchauffe. Un probl\u00e8me \u00e9lectrique caus\u00e9 par une surcharge ou un court-circuit est appel\u00e9 court-circuit.<\/p>\n\n\n\n<p>Nous avions l&#039;habitude de nous d\u00e9fendre contre les surintensit\u00e9s avec du fil fusible (en fait, nous avions l&#039;habitude de le vendre\u00a0!) \u00c0 l&#039;\u00e9poque. Le concept \u00e9tait simple : une surintensit\u00e9 \u00ab ferait sauter \u00bb physiquement le fil fusible en le chauffant et en le faisant fondre rapidement.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.tosunlux.eu\/fr\/category\/power-distribution-system\/?s=circuit%20breaker\" target=\"_blank\" rel=\"noreferrer noopener\">MCB<\/a> d\u00e9velopper cette fonctionnalit\u00e9 en ne se d\u00e9truisant pas lors d&#039;une surintensit\u00e9 et en \u00e9tant ainsi r\u00e9utilisable. Il est \u00e9galement consid\u00e9rablement plus facile \u00e0 utiliser, avec la simplicit\u00e9 de la \u00ab\u00a0commutation marche\/arr\u00eat\u00a0\u00bb pour l&#039;isolation du circuit. Ils sont beaucoup plus s\u00fbrs \u00e0 utiliser et \u00e0 exploiter car le conducteur est alors log\u00e9 dans une coque en plastique.<\/p>\n\n\n\n<p>Il convient de noter que les MCB ne prot\u00e8gent pas les personnes contre les chocs \u00e9lectriques g\u00e9n\u00e9r\u00e9s par les \u00ab fuites \u00e0 la terre \u00bb. Les RCD et les RCBO sont les dispositifs qui ex\u00e9cutent ce service.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.tosunlux.eu\/fr\/products\/tsb4-63-miniature-circuit-breaker\/\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/04\/TSB4-63-1P-2-1024x1024.jpg\" alt=\"\" class=\"wp-image-2768\" srcset=\"https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/04\/TSB4-63-1P-2-1024x1024.jpg 1024w, https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/04\/TSB4-63-1P-2-300x300.jpg 300w, https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/04\/TSB4-63-1P-2-150x150.jpg 150w, https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/04\/TSB4-63-1P-2-768x768.jpg 768w, https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/04\/TSB4-63-1P-2-1536x1536.jpg 1536w, https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/04\/TSB4-63-1P-2.jpg 1603w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption>Disjoncteur miniature TSB4-63<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/www.tosunlux.eu\/fr\/products\/tsn3-32-miniature-circuit-breaker\/\"><img decoding=\"async\" src=\"https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/05\/TSN3-32-1024x1024.jpg\" alt=\"TSN3-32\" class=\"wp-image-2310\" width=\"404\" height=\"404\" srcset=\"https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/05\/TSN3-32-1024x1024.jpg 1024w, https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/05\/TSN3-32-300x300.jpg 300w, https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/05\/TSN3-32-150x150.jpg 150w, https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/05\/TSN3-32-768x768.jpg 768w, https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/05\/TSN3-32-1536x1536.jpg 1536w, https:\/\/www.tosunlux.eu\/wp-content\/uploads\/2022\/05\/TSN3-32.jpg 1600w\" sizes=\"(max-width: 404px) 100vw, 404px\" \/><\/a><figcaption>Disjoncteur miniature TSN3-32<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><strong>Les kiloamp\u00e8res, les amp\u00e8res et la courbe de d\u00e9clenchement sont les trois principales caract\u00e9ristiques d&#039;un MCB.<\/strong><\/p>\n\n\n\n<p><strong>Courants nominaux de surcharge \u2013 Amp\u00e8res (A)<\/strong><\/p>\n\n\n\n<p>Lorsque trop d&#039;appareils sont connect\u00e9s \u00e0 un seul circuit, ils utilisent plus de courant \u00e9lectrique que le circuit et le c\u00e2ble n&#039;ont \u00e9t\u00e9 con\u00e7us pour en supporter. Cela peut arriver dans la cuisine si la bouilloire, le lave-vaisselle, la cuisini\u00e8re \u00e9lectrique, le micro-ondes et le mixeur sont utilis\u00e9s simultan\u00e9ment. Le MCB de ce circuit coupe l&#039;\u00e9lectricit\u00e9, emp\u00eachant le c\u00e2ble et les bornes de surchauffer et de prendre feu.<\/p>\n\n\n\n<p><strong>Kilo Amp\u00e8res \u2013 Indice de court-circuit (kA)<\/strong><\/p>\n\n\n\n<p>Les courts-circuits sont caus\u00e9s par une d\u00e9faillance d&#039;un circuit \u00e9lectrique ou d&#039;un appareil, et ils peuvent \u00eatre encore plus nocifs que les surcharges puisque l&#039;\u00e9chelle et la vitesse de la surintensit\u00e9 sont \u00e0 une \u00e9chelle diff\u00e9rente. Lorsque les conducteurs sous tension et neutre sont connect\u00e9s directement, cela se produit. Le courant \u00e9lectrique se pr\u00e9cipite autour du circuit dans une boucle sans la r\u00e9sistance fournie par l&#039;int\u00e9grit\u00e9 r\u00e9guli\u00e8re du circuit, multipliant l&#039;amp\u00e9rage par des milliers de fois en quelques instants.<\/p>\n\n\n\n<p>En raison du lien entre la tension standard (240 V) et les puissances nominales typiques des appareils r\u00e9sidentiels, la surintensit\u00e9 de court-circuit ne doit pas d\u00e9passer 6 000 amp\u00e8res. Cependant, lors de l&#039;utilisation de 415 V et de gros \u00e9quipements dans des environnements commerciaux et industriels, des MCB de 10 kA sont n\u00e9cessaires. Le courant de d\u00e9faut le plus probable que le MCB peut supporter tout en d\u00e9connectant le circuit est indiqu\u00e9 par ces valeurs nominales.<\/p>\n\n\n\n<p><strong>Courbe de d\u00e9clenchement<\/strong><\/p>\n\n\n\n<p>La \u00abcourbe de d\u00e9clenchement\u00bb d&#039;un MCB permet des surtensions r\u00e9elles et parfois n\u00e9cessaires. Pour surmonter l&#039;inertie des gros moteurs dans les applications commerciales, les grosses machines n\u00e9cessitent g\u00e9n\u00e9ralement une pouss\u00e9e initiale de puissance sup\u00e9rieure \u00e0 leur courant de travail moyen. Le MCB permet ce petit pic, qui ne dure que quelques secondes car il est s\u00fbr de le faire pendant une si courte p\u00e9riode.<\/p>\n\n\n\n<h2 class=\"has-medium-font-size wp-block-heading\"><span class=\"ez-toc-section\" id=\"Typical_Uses_for_Domestic_MCBs\"><\/span><strong>Utilisations typiques des MCB domestiques<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Bien que chaque installation soit unique et doive toujours \u00eatre planifi\u00e9e par un \u00e9lectricien professionnel agr\u00e9\u00e9 sur place, la plupart des sch\u00e9mas de c\u00e2blage domestique suivent les directives suivantes\u00a0:<\/p>\n\n\n\n<p>Circuits d&#039;\u00e9clairage \u00e9valu\u00e9s \u00e0 six amp\u00e8res<\/p>\n\n\n\n<p>Les grands circuits d&#039;\u00e9clairage \u00e9valu\u00e9s \u00e0 dix amp\u00e8res, bien qu&#039;ils deviennent moins courants dans les environnements domestiques \u00e0 mesure que la technologie et les tendances \u00e9voluent vers des sources d&#039;\u00e9clairage \u00e0 faible consommation d&#039;\u00e9nergie comme les LED.<\/p>\n\n\n\n<p>Les 16 amp\u00e8res et 20 amp\u00e8res sont souvent utilis\u00e9s pour les thermoplongeurs et les chaudi\u00e8res, selon la puissance nominale.<\/p>\n\n\n\n<p>Ring Final \u2013 32 Amp Le circuit d&#039;alimentation est appel\u00e9 \u00ab prises \u00bb en termes techniques.<\/p>\n\n\n\n<p>Les cuisini\u00e8res, les plaques \u00e9lectriques et les petites douches n\u00e9cessitent 40 amp\u00e8res.<\/p>\n\n\n\n<p>Douches et bains \u00e0 remous \u00e9lectriques avec une alimentation \u00e9lectrique de 50 amp\u00e8res - 10 kW.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-embed-handler wp-block-embed-embed-handler wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Types de MCB et leurs applications || Types de MCB\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/JmHBOO1Y63k?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"has-medium-font-size wp-block-heading\"><span class=\"ez-toc-section\" id=\"There_are_five_uses_for_MCBs_that_you_may_not_be_aware_of\"><\/span><strong>Il existe cinq utilisations des MCB que vous ignorez peut-\u00eatre.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Un syst\u00e8me \u00e9lectrique bien \u00e9tabli est l&#039;un des besoins les plus cruciaux pour le fonctionnement efficace de votre maison, usine ou lieu de travail. Chaque \u00e9quipement et machinerie domestique consomme une quantit\u00e9 importante d&#039;\u00e9nergie, ce qui n\u00e9cessite des pr\u00e9cautions de s\u00e9curit\u00e9 lors de l&#039;utilisation de l&#039;\u00e9lectricit\u00e9. Les surtensions peuvent provoquer des changements de tension extr\u00eamement nocifs et dangereux.<\/p>\n\n\n\n<p>Les disjoncteurs miniatures sont de petits appareils qui agissent comme agents de contr\u00f4le en cas de panne de courant. Lorsqu&#039;il d\u00e9tecte une surcharge ou une surtension, cet appareil coupe le syst\u00e8me \u00e9lectrique. Diverses vari\u00e9t\u00e9s de MCB peuvent \u00eatre utilis\u00e9es dans vos maisons et entreprises, selon la nature des applications \u00e9lectriques. Les circuits de disjoncteurs miniatures sont id\u00e9aux pour les habitations et les b\u00e2timents avec une infrastructure \u00e9lectrique limit\u00e9e. Voici quelques applications pour les MCB que vous n&#039;avez peut-\u00eatre pas envisag\u00e9es.<\/p>\n\n\n\n<p><strong>1. Panneaux \u00e9lectriques dans la maison<\/strong><\/p>\n\n\n\n<p>Pour prot\u00e9ger les habitations contre les surcharges, des disjoncteurs miniatures sont utilis\u00e9s. Ils sont plus fiables et plus s\u00fbrs que les fusibles en raison de leur capacit\u00e9 \u00e0 g\u00e9rer des quantit\u00e9s massives d&#039;\u00e9lectricit\u00e9. L&#039;un des avantages les plus importants d&#039;un MCB est qu&#039;il garantit que l&#039;\u00e9nergie \u00e9lectrique est r\u00e9partie uniform\u00e9ment sur tous les appareils.&nbsp;<\/p>\n\n\n\n<p><strong>2. Lumi\u00e8res<\/strong><\/p>\n\n\n\n<p>Chaque maison dispose d&#039;un syst\u00e8me d&#039;\u00e9clairage sophistiqu\u00e9. Ceux-ci peuvent aider \u00e0 la distribution efficace de l&#039;\u00e9lectricit\u00e9 dans les syst\u00e8mes d&#039;\u00e9clairage de la maison. Par rapport aux ampoules ordinaires, les lampes fluorescentes, par exemple, consomment beaucoup d&#039;\u00e9lectricit\u00e9 pour fonctionner. Les MCB viennent \u00e0 la rescousse dans cette situation. Les MCB contribuent \u00e9galement au maintien de la qualit\u00e9 et de la s\u00e9curit\u00e9 des ampoules.<\/p>\n\n\n\n<p><strong>3. Applications dans l&#039;industrie<\/strong><\/p>\n\n\n\n<p>Dans les petites et les grandes entreprises, les disjoncteurs miniatures peuvent \u00eatre des m\u00e9canismes de s\u00e9curit\u00e9 ad\u00e9quats. Dans un monde id\u00e9al, la plupart des \u00e9quipements industriels n\u00e9cessiteraient une alimentation \u00e9lectrique pouvant atteindre 30 kA. Dans ce cas, il est n\u00e9cessaire de remplacer les anciens fusibles par des MCB. Les MCB jouent une fonction essentielle dans les installations commerciales, garantissant l&#039;efficacit\u00e9 des applications et des installations en optimisant le flux d&#039;\u00e9nergie. Les h\u00f4tels, les supermarch\u00e9s et les boulangeries les utilisent tous.<\/p>\n\n\n\n<p><strong>4. Chauffages<\/strong><\/p>\n\n\n\n<p>Les MCB sont une option de s\u00e9curit\u00e9 fiable, en particulier si vous avez des radiateurs install\u00e9s dans votre maison ou votre bureau. Les appareils de chauffage, en g\u00e9n\u00e9ral, sont sujets \u00e0 des variations de tension excessives car ils consomment une grande quantit\u00e9 d&#039;\u00e9lectricit\u00e9 de l&#039;alimentation principale. Ces cas peuvent \u00eatre \u00e9vit\u00e9s gr\u00e2ce \u00e0 l&#039;installation appropri\u00e9e d&#039;un petit disjoncteur. Les disjoncteurs miniatures se pr\u00e9sentent sous diff\u00e9rentes formes et tailles, chacun capable de g\u00e9rer une charge de puissance sp\u00e9cifique.<\/p>\n\n\n\n<p><strong>5. M\u00e9canisme de d\u00e9clenchement sur d\u00e9faut \u00e0 la terre<\/strong><\/p>\n\n\n\n<p>Lorsque le fil sous tension touche une surface de transmission qui ne fait pas partie du syst\u00e8me de circuit, un d\u00e9faut \u00e0 la terre se produit. Lorsqu&#039;il y a une panne dans le circuit, le d\u00e9bit de courant augmente. Un MCB d\u00e9marre son m\u00e9canisme de d\u00e9clenchement magn\u00e9tique et redresse le syst\u00e8me de circuit \u00e0 ce stade.<\/p>","protected":false},"excerpt":{"rendered":"<p>D\u00e9couvrez les caract\u00e9ristiques des MCB, y compris les caract\u00e9ristiques de courant de surcharge, les caract\u00e9ristiques de court-circuit en kiloamp\u00e8res et les courbes de d\u00e9clenchement. <\/p>","protected":false},"author":1,"featured_media":6648,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-6653","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Understanding MCBs and their Importance in Homes and Industries<\/title>\n<meta name=\"description\" content=\"Discover the 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