{"id":392,"date":"2021-01-12T10:33:08","date_gmt":"2021-01-12T10:33:08","guid":{"rendered":"https:\/\/www.inspec-pro.ca\/?p=392"},"modified":"2026-08-10T14:23:16","modified_gmt":"2026-08-10T18:23:16","slug":"arc-fault-circuit-interrupters-afcis","status":"publish","type":"post","link":"https:\/\/www.inspec-pro.ca\/fr\/arc-fault-circuit-interrupters-afcis\/","title":{"rendered":"Disjoncteurs d\u00e9tecteurs d\u2019arcs (AFCI)"},"content":{"rendered":"<p>Les dispositifs AFCI sont des prises ou des disjoncteurs sp\u00e9cialis\u00e9s con\u00e7us pour d\u00e9tecter certains arcs \u00e9lectriques potentiellement dangereux dans les circuits de d\u00e9rivation r\u00e9sidentiels et interrompre le circuit.<\/p>\n<p><strong>Comment fonctionnent-ils?<\/strong><\/p>\n<p>Les AFCI fonctionnent en surveillant la forme d\u2019onde \u00e9lectrique et en ouvrant rapidement le circuit qu\u2019ils prot\u00e8gent lorsqu\u2019ils d\u00e9tectent des changements caract\u00e9ristiques d\u2019un arc dangereux. Ils doivent aussi pouvoir distinguer les arcs normaux et s\u00e9curitaires, comme ceux produits lorsqu\u2019un interrupteur est actionn\u00e9 ou qu\u2019une fiche est retir\u00e9e d\u2019une prise, des arcs pouvant causer un incendie. Un AFCI peut d\u00e9tecter et reconna\u00eetre de tr\u00e8s petits changements dans la forme d\u2019onde.<\/p>\n<p><strong>Qu\u2019est-ce qu\u2019un arc \u00e9lectrique?<\/strong><\/p>\n<p>Lorsqu\u2019un courant \u00e9lectrique traverse un espace d\u2019air entre un composant sous tension et un composant mis \u00e0 la terre, il produit une d\u00e9charge de plasma lumineuse appel\u00e9e arc. Un \u00e9clair est un exemple d\u2019arc tr\u00e8s puissant qui traverse l\u2019espace atmosph\u00e9rique entre un nuage charg\u00e9 et le sol ou un autre nuage. Tout comme la foudre peut provoquer des incendies, les arcs produits par le c\u00e2blage r\u00e9sidentiel peuvent g\u00e9n\u00e9rer suffisamment de chaleur pour enflammer les mat\u00e9riaux environnants et provoquer un incendie de b\u00e2timent.<\/p>\n<p>Selon les statistiques de la National Fire Protection Association pour 2005 cit\u00e9es dans l\u2019article d\u2019origine, les incendies \u00e9lectriques ont endommag\u00e9 environ 20 900 maisons, caus\u00e9 500 d\u00e9c\u00e8s et entra\u00een\u00e9 862 millions de dollars de dommages mat\u00e9riels. Bien que les courts-circuits et les surcharges soient responsables de plusieurs de ces incendies, l\u2019article indique que les arcs en causent la majorit\u00e9 et qu\u2019ils ne sont pas d\u00e9tect\u00e9s par les disjoncteurs traditionnels sans fonction AFCI.<\/p>\n<p><strong>O\u00f9 des arcs peuvent-ils se former?<\/strong><\/p>\n<p>Des arcs peuvent se produire lorsque le c\u00e2blage est mal install\u00e9 ou lorsque l\u2019isolation des conducteurs est endommag\u00e9e. Dans les installations plus anciennes, l\u2019isolant peut devenir cassant avec l\u2019\u00e2ge, ce qui augmente le risque d\u2019exposition du conducteur.<\/p>\n<p>Des situations pouvant favoriser la formation d\u2019arcs comprennent :<\/p>\n<ul>\n<li>Cordons \u00e9lectriques endommag\u00e9s par un aspirateur ou coinc\u00e9s sous des meubles ou des portes.<\/li>\n<li>Isolation de c\u00e2blage endommag\u00e9e par des clous ou des vis traversant les murs.<\/li>\n<li>Cordons d\u2019appareils endommag\u00e9s par la chaleur, le vieillissement, les plis, les impacts ou une traction excessive.<\/li>\n<li>D\u00e9versement de liquide.<\/li>\n<li>Connexions desserr\u00e9es dans les prises, interrupteurs et luminaires.<\/li>\n<\/ul>\n<p><strong>O\u00f9 les AFCI sont-ils requis?<\/strong><\/p>\n<p>Les endroits o\u00f9 une protection AFCI est requise d\u00e9pendent des codes du b\u00e2timent et d\u2019\u00e9lectricit\u00e9 adopt\u00e9s dans la juridiction. Selon l\u2019article d\u2019origine, depuis 2005, le Code de l\u2019\u00e9lectricit\u00e9 du Qu\u00e9bec exige que chaque circuit de chambre \u00e0 coucher soit prot\u00e9g\u00e9 par un AFCI.<\/p>\n<p><strong>Quels types d\u2019AFCI sont disponibles?<\/strong><\/p>\n<p>Les AFCI sont notamment offerts sous forme de disjoncteurs install\u00e9s dans le panneau de distribution \u00e9lectrique.<\/p>\n<p><strong>D\u00e9fauts d\u2019arc et d\u00e9fauts \u00e0 la terre<\/strong><\/p>\n<p>Il est important de distinguer les AFCI des dispositifs de protection contre les d\u00e9fauts \u00e0 la terre, appel\u00e9s DDFT ou GFCI. Les DDFT d\u00e9tectent les d\u00e9fauts \u00e0 la terre, qui se produisent lorsqu\u2019un courant s\u2019\u00e9chappe d\u2019un conducteur sous tension vers un objet mis \u00e0 la terre, par exemple lors d\u2019un court-circuit. Cette situation peut \u00eatre dangereuse lorsqu\u2019une personne devient involontairement le chemin du courant vers la terre. Les DDFT surveillent continuellement le courant entre les conducteurs sous tension et neutre et se d\u00e9clenchent lorsqu\u2019ils d\u00e9tectent une diff\u00e9rence d\u2019environ 5 milliamp\u00e8res ou plus. Ainsi, les DDFT servent principalement \u00e0 r\u00e9duire le risque de choc \u00e9lectrique, tandis que les AFCI visent \u00e0 r\u00e9duire les risques de blessures et de dommages mat\u00e9riels associ\u00e9s aux incendies caus\u00e9s par des arcs.<\/p>\n<p>En r\u00e9sum\u00e9, les AFCI sont con\u00e7us pour d\u00e9tecter certains arcs \u00e9lectriques avant qu\u2019ils ne puissent contribuer \u00e0 un incendie.<\/p>\n<p>Pour une \u00e9valuation professionnelle de l\u2019\u00e9tat visible de votre propri\u00e9t\u00e9, <a href=\"https:\/\/www.inspec-pro.ca\/fr\/contact-us\/\">obtenez une soumission d\u2019inspection<\/a> aupr\u00e8s d\u2019Inspec-Pro Inspection r\u00e9sidentielle.<\/p>\n<p>Appelez au 819-962-5880 ou \u00e9crivez \u00e0 <a href=\"mailto:info@inspec-pro.ca\">info@inspec-pro.ca<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Arc-fault circuit interrupters (AFCIs) are special types of electrical receptacles or outlets and circuit breakers designed to detect and respond to potentially dangerous electrical arcs in home branch wiring. How do they work? AFCIs function by monitoring the electrical waveform and promptly opening (interrupting) the circuit they serve if they detect changes in the wave [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":393,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_glsr_average":0,"_glsr_ranking":0,"_glsr_reviews":0,"footnotes":""},"categories":[1],"tags":[8,9,10,7,6,11,4,5],"class_list":["post-392","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-realestate","tag-realestategatineau","tag-realestateottawa","tag-best-home-inspection-gatineau","tag-best-home-inspection-ottawa","tag-best-home-inspector-ottawa-gatineau","tag-home-inspection-gatineau","tag-home-inspection-ottawa"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Arc-Fault Circuit 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