{"id":49439,"date":"2026-03-02T06:42:34","date_gmt":"2026-03-02T06:42:34","guid":{"rendered":"https:\/\/www.kdmsteel.com\/?p=49439"},"modified":"2026-03-02T07:19:23","modified_gmt":"2026-03-02T07:19:23","slug":"how-to-install-an-electrical-junction-box","status":"publish","type":"post","link":"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/","title":{"rendered":"Comment installer une bo\u00eete de jonction \u00e9lectrique"},"content":{"rendered":"<p>Une installation correcte de la bo\u00eete de jonction contribue \u00e0 am\u00e9liorer la s\u00e9curit\u00e9 \u00e9lectrique et \u00e0 assurer la conformit\u00e9 aux normes en vigueur. Cet article fournit aux \u00e9lectriciens et aux gestionnaires d&#039;installations des instructions pratiques, depuis le choix des outils jusqu&#039;aux \u00e9tapes d&#039;installation d\u00e9taill\u00e9es, afin de les aider \u00e0 r\u00e9aliser toutes les op\u00e9rations en toute s\u00e9curit\u00e9.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 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\" style=\"cursor:inherit\">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=\"Basculer la 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' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#What_Is_an_Electrical_Junction_Box\" >Qu&#039;est-ce qu&#039;une bo\u00eete de jonction \u00e9lectrique\u00a0?<\/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.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Preparation_Tools_and_Materials_Youll_Need\" >Pr\u00e9paration : Outils et mat\u00e9riel n\u00e9cessaires<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Step-by-Step_Guide_How_to_Install_a_Junction_Box\" >Guide \u00e9tape par \u00e9tape\u00a0: Comment installer une bo\u00eete de jonction\u00a0?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Prepare_the_Correct_Junction_Box\" >Pr\u00e9parez la bo\u00eete de jonction correcte<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Position_Your_Junction_Box\" >Positionnez votre bo\u00eete de jonction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Mount_the_Box\" >Monter le bo\u00eetier<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Install_Cable_Clamps_or_Conduit_Fitting\" >Installer des colliers de serrage ou des raccords de conduit<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Strip_and_Secure_Your_Electrical_Cables\" >D\u00e9nudez et fixez vos c\u00e2bles \u00e9lectriques<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Connect_the_Wires\" >Connecter les fils<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Organize_and_Fold_Wires_into_the_Box\" >Rangez et repliez les c\u00e2bles dans la bo\u00eete.<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Install_the_Cover\" >Installez le couvercle<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Common_Mistakes_To_Avoid\" >Erreurs courantes \u00e0 \u00e9viter<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Overfilling_the_Junction_Box\" >D\u00e9bordement de la bo\u00eete de jonction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Leaving_Splices_Outside_the_Box\" >Laisser les \u00e9pissures hors de la bo\u00eete<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Mixing_Incompatible_Wire_Gauges\" >M\u00e9langer des fils de calibres incompatibles<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Using_the_Wrong_Type_of_Junction_Box\" >Utilisation d&#039;un type de bo\u00eete de jonction inappropri\u00e9<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#FAQ\" >FAQ<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Can_I_Install_the_Junction_Box_by_Myself\" >Puis-je installer la bo\u00eete de jonction moi-m\u00eame\u00a0?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#How_Do_You_Ground_a_Metal_Junction_Box\" >Comment mettre \u00e0 la terre une bo\u00eete de jonction m\u00e9tallique\u00a0?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Can_a_Junction_Box_be_Installed_Outdoors\" >Peut-on installer une bo\u00eete de jonction \u00e0 l&#039;ext\u00e9rieur\u00a0?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/#Final_Thought\" >Derni\u00e8re r\u00e9flexion<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_an_Electrical_Junction_Box\"><\/span>Qu&#039;est-ce qu&#039;une bo\u00eete de jonction \u00e9lectrique\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>UN <a href=\"https:\/\/www.kdmsteel.com\/fr\/boitier-de-boite-de-jonction\/\">bo\u00eete de jonction<\/a>\u00a0Une bo\u00eete de jonction est un bo\u00eetier de protection servant \u00e0 recouvrir les fils \u00e9lectriques. Vous pouvez opter pour une bo\u00eete en plastique ou en m\u00e9tal avec couvercle, et y loger les connecteurs. Les bo\u00eetes de jonction sont g\u00e9n\u00e9ralement install\u00e9es dans des endroits accessibles comme les murs, les plafonds ou les combles pour raccorder ou d\u00e9river diff\u00e9rents circuits \u00e9lectriques.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46546\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Junction-Box-Used-for-Organizing-Electrical-Systems.jpg\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Junction-Box-Used-for-Organizing-Electrical-Systems.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Junction-Box-Used-for-Organizing-Electrical-Systems-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Junction-Box-Used-for-Organizing-Electrical-Systems-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Junction-Box-Used-for-Organizing-Electrical-Systems-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Preparation_Tools_and_Materials_Youll_Need\"><\/span>Pr\u00e9paration : Outils et mat\u00e9riel n\u00e9cessaires<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Avant l&#039;installation, pr\u00e9parez les outils n\u00e9cessaires pour optimiser votre flux de travail et garantir la s\u00e9curit\u00e9 de l&#039;installation. Voici la liste\u00a0:<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"172\"><strong><b>Outils<\/b><\/strong><\/td>\n<td width=\"1076\">Tournevis (plat et cruciforme), pince, pince \u00e0 d\u00e9nuder, testeur de tension, perceuse et forets, couteau utilitaire, m\u00e8tre ruban<\/td>\n<\/tr>\n<tr>\n<td width=\"172\"><strong><b>Mat\u00e9riels<\/b><\/strong><\/td>\n<td width=\"1076\">Bo\u00eete de jonction, connecteurs \u00e0 vis, serre-c\u00e2bles, c\u00e2ble \u00e9lectrique (de m\u00eame couleur), vis de fixation, plaque de recouvrement<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Step-by-Step_Guide_How_to_Install_a_Junction_Box\"><\/span>Guide \u00e9tape par \u00e9tape\u00a0: Comment installer une bo\u00eete de jonction\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Prepare_the_Correct_Junction_Box\"><\/span>Pr\u00e9parez la bo\u00eete de jonction correcte<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49443\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-4.jpg\" alt=\"Bo\u00eete de jonction \u00e9lectrique (4)\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-4.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-4-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-4-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-4-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Vous devez d\u00e9terminer si votre bo\u00eete de jonction est destin\u00e9e \u00e0 un usage int\u00e9rieur ou ext\u00e9rieur et choisir entre le plastique et le m\u00e9tal. Pour une utilisation ext\u00e9rieure, vous devez installer un mod\u00e8le \u00e9tanche ou <a href=\"https:\/\/www.kdmsteel.com\/fr\/boite-de-jonction-etanche\/\">\u00e9tanche<\/a>\u00a0Bo\u00eete de jonction. De plus, le choix de la bo\u00eete de jonction doit \u00eatre adapt\u00e9 au type de c\u00e2ble utilis\u00e9. Par exemple, pour des c\u00e2bles NM, privil\u00e9giez une bo\u00eete de jonction en plastique\u00a0; pour des c\u00e2bles BX, optez pour une bo\u00eete de jonction en m\u00e9tal.<\/p>\n<p>La bo\u00eete de jonction est plus grande pour accueillir tous vos c\u00e2bles. La capacit\u00e9 de remplissage des conducteurs est \u00e9troitement li\u00e9e \u00e0 leur volume (en pouces cubes). Calculez le nombre de c\u00e2bles et d&#039;\u00e9quipements n\u00e9cessaires pour remplir la bo\u00eete de jonction et ainsi obtenir la taille appropri\u00e9e. Voici les sp\u00e9cifications du NEC concernant le remplissage des conducteurs\u00a0:<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"624\"><strong><b>Calibre du fil (AWG)<\/b><\/strong><\/td>\n<td width=\"624\"><strong><b>Volume par conducteur (pouces cubes)<\/b><\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"624\">18<\/td>\n<td width=\"624\">1,5 pouces cubes<\/td>\n<\/tr>\n<tr>\n<td width=\"624\">16<\/td>\n<td width=\"624\">1,75 pouces cubes<\/td>\n<\/tr>\n<tr>\n<td width=\"624\">14<\/td>\n<td width=\"624\">2,0 pouces cubes<\/td>\n<\/tr>\n<tr>\n<td width=\"624\">12<\/td>\n<td width=\"624\">2,25 pouces cubes<\/td>\n<\/tr>\n<tr>\n<td width=\"624\">10<\/td>\n<td width=\"624\">2,5 pouces cubes<\/td>\n<\/tr>\n<tr>\n<td width=\"624\">8<\/td>\n<td width=\"624\">3,0 pouces cubes<\/td>\n<\/tr>\n<tr>\n<td width=\"624\">6<\/td>\n<td width=\"624\">5,0 pouces cubes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Position_Your_Junction_Box\"><\/span>Positionnez votre bo\u00eete de jonction<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Avant l&#039;installation, rep\u00e9rez le circuit concern\u00e9 dans le tableau \u00e9lectrique et coupez l&#039;alimentation. Si vous ne parvenez pas \u00e0 le localiser pr\u00e9cis\u00e9ment, coupez le disjoncteur principal. Utilisez un testeur de tension pour v\u00e9rifier que le circuit est bien hors tension. Enfin, assurez-vous que l&#039;emplacement de la bo\u00eete de d\u00e9rivation est facilement accessible.<\/p>\n<p>La bo\u00eete de jonction ne doit pas \u00eatre dissimul\u00e9e derri\u00e8re des plaques de pl\u00e2tre ou d&#039;autres mat\u00e9riaux. Il est imp\u00e9ratif de s&#039;assurer de l&#039;absence d&#039;obstacles et de pr\u00e9voir un espace de travail suffisant pour le c\u00e2blage. Ceci facilitera la maintenance ult\u00e9rieure et contribuera \u00e0 r\u00e9duire les risques pour la s\u00e9curit\u00e9.<\/p>\n<p>La bo\u00eete de jonction au plafond \u00e0 installer doit \u00eatre munie d&#039;une plaque de recouvrement amovible. L&#039;installation de la bo\u00eete de jonction doit \u00eatre effectu\u00e9e en \u00e9vitant les zones humides, sauf si vous utilisez une bo\u00eete \u00e9tanche. Pour une installation murale, il est \u00e9galement n\u00e9cessaire de v\u00e9rifier la solidit\u00e9 de la fixation sur les montants.<\/p>\n<p>Avant toute installation, il est primordial de v\u00e9rifier que la bo\u00eete de jonction dispose d&#039;un espace suffisant pour contenir tous les c\u00e2bles et appareils.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mount_the_Box\"><\/span>Monter le bo\u00eetier<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Si vous utilisez un <a href=\"https:\/\/www.kdmsteel.com\/fr\/boite-de-jonction-en-metal\/\">bo\u00eete de jonction en m\u00e9tal<\/a>, Utilisez un tournevis ou une pince pour retirer le disque m\u00e9tallique (gouttes pr\u00e9d\u00e9coup\u00e9es) du trou de c\u00e2blage souhait\u00e9. V\u00e9rifiez votre plan d&#039;installation et marquez l&#039;emplacement du c\u00e2blage. S\u00e9parez les fils du circuit des \u00e9pissures existantes pour faire de la place pour la nouvelle bo\u00eete de jonction.<\/p>\n<p>Si vous installez la bo\u00eete sur une cloison s\u00e8che, vous devrez tracer son contour et le d\u00e9couper. La fixation sur la cloison s\u00e8che doit \u00eatre r\u00e9alis\u00e9e \u00e0 l&#039;aide d&#039;ancrages. Vous pouvez \u00e9galement fixer la bo\u00eete aux montants muraux ou \u00e0 d&#039;autres \u00e9l\u00e9ments de structure \u00e0 l&#039;aide de vis et d&#039;\u00e9querres. Le bord avant de la bo\u00eete de jonction doit \u00eatre align\u00e9 avec le mur.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Install_Cable_Clamps_or_Conduit_Fitting\"><\/span>Installer des colliers de serrage ou des raccords de conduit<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ins\u00e9rez les serre-c\u00e2bles ou les connecteurs de conduit dans la bo\u00eete et serrez-les fermement pour emp\u00eacher les c\u00e2bles de bouger. Les bo\u00eetes de jonction en plastique sont g\u00e9n\u00e9ralement fournies avec des serre-c\u00e2bles. Il peut \u00eatre n\u00e9cessaire d&#039;utiliser des serre-c\u00e2bles \u00e0 \u00e9crou de blocage pour les bo\u00eetes de jonction m\u00e9talliques. Ensuite, passez l&#039;extr\u00e9mit\u00e9 filet\u00e9e du c\u00e2ble dans l&#039;orifice et fixez-la \u00e0 l&#039;int\u00e9rieur de la bo\u00eete \u00e0 l&#039;aide des bornes \u00e0 vis. Veillez \u00e0 ne pas trop serrer afin de ne pas endommager l&#039;isolant.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49442\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-3.jpg\" alt=\"Bo\u00eete de jonction \u00e9lectrique (3)\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-3.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-3-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-3-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-3-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Strip_and_Secure_Your_Electrical_Cables\"><\/span>D\u00e9nudez et fixez vos c\u00e2bles \u00e9lectriques<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Installez des serre-c\u00e2bles ou des connecteurs de conduit et serrez-les fermement pour emp\u00eacher les c\u00e2bles de bouger. Les bo\u00eetes de jonction en plastique sont g\u00e9n\u00e9ralement fournies avec des serre-c\u00e2bles. Il peut \u00eatre n\u00e9cessaire d&#039;\u00e9quiper les bo\u00eetes de jonction m\u00e9talliques de serre-c\u00e2bles \u00e0 \u00e9crou de blocage. Ensuite, passez l&#039;extr\u00e9mit\u00e9 filet\u00e9e du c\u00e2ble dans l&#039;orifice et fixez-la \u00e0 l&#039;int\u00e9rieur de la bo\u00eete \u00e0 l&#039;aide des bornes de connexion. Veillez \u00e0 ne pas trop serrer afin de ne pas endommager l&#039;isolant.<\/p>\n<p>Utilisez une pince \u00e0 d\u00e9nuder pour retirer environ 18 \u00e0 20 mm (3\/4 de pouce) d&#039;isolant du c\u00e2ble. Lors du d\u00e9nudage, veillez \u00e0 ne pas endommager le conducteur en cuivre. Avant de brancher le c\u00e2ble, v\u00e9rifiez que chaque conducteur est intact et redressez les extr\u00e9mit\u00e9s des fils pli\u00e9s.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Connect_the_Wires\"><\/span>Connecter les fils<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Vous devez connecter le fil de terre, g\u00e9n\u00e9ralement un fil isol\u00e9 vert. Si vous utilisez un bo\u00eetier m\u00e9tallique, vous devrez \u00e9galement ajouter un c\u00e2ble de 15 cm (6 pouces) au fil de terre. Fixez-le ensuite \u00e0 la vis de mise \u00e0 la terre du bo\u00eetier.<\/p>\n<p>Ensuite, connectez s\u00e9par\u00e9ment le fil noir (phase), le fil blanc (neutre) et le fil rouge (phase) \u00e0 l&#039;aide d&#039;une pince coupante. Chaque paire de fils n\u00e9cessite un connecteur (dominos). Une fois la connexion effectu\u00e9e, tirez l\u00e9g\u00e8rement sur les fils pour v\u00e9rifier qu&#039;ils sont bien fix\u00e9s.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Organize_and_Fold_Wires_into_the_Box\"><\/span>Rangez et repliez les c\u00e2bles dans la bo\u00eete.<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Pliez soigneusement les fils et rangez-les dans la bo\u00eete, en \u00e9vitant de trop les plier ou de les forcer. Placez ensuite le fil de terre \u00e0 l&#039;arri\u00e8re. Enfin, v\u00e9rifiez attentivement qu&#039;aucun fil de cuivre n&#039;est d\u00e9nud\u00e9 \u00e0 l&#039;ext\u00e9rieur du connecteur. Surtout, ne remplissez pas trop la bo\u00eete et ne d\u00e9passez pas sa capacit\u00e9 maximale.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Install_the_Cover\"><\/span>Installez le couvercle<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Alignez la plaque de recouvrement avec le bo\u00eetier et fixez-la \u00e0 l&#039;aide des vis. Assurez-vous \u00e9galement que le couvercle est bien \u00e0 plat et \u00e9tanche. Apr\u00e8s l&#039;installation, vous pouvez remettre le disjoncteur en marche et utiliser un testeur de tension pour tester le circuit. V\u00e9rifiez le bon fonctionnement des appareils connect\u00e9s. En cas de surchauffe, de bruit ou d&#039;odeur anormaux, coupez imm\u00e9diatement l&#039;alimentation et rev\u00e9rifiez les connexions. Si le fonctionnement est normal, votre bo\u00eete de jonction est correctement install\u00e9e.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49444\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-5.jpg\" alt=\"Bo\u00eete de jonction \u00e9lectrique (5)\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-5.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-5-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-5-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-5-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Common_Mistakes_To_Avoid\"><\/span>Erreurs courantes \u00e0 \u00e9viter<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Overfilling_the_Junction_Box\"><\/span>D\u00e9bordement de la bo\u00eete de jonction<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>L&#039;utilisation d&#039;une petite bo\u00eete de jonction entra\u00eene une accumulation de chaleur. De plus, le frottement entre les fils peut endommager la couche isolante, ce qui augmente ind\u00e9niablement les risques d&#039;incendie. Enfin, cela contrevient aux restrictions de remplissage des bo\u00eetes stipul\u00e9es dans le NEC.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Leaving_Splices_Outside_the_Box\"><\/span>Laisser les \u00e9pissures hors de la bo\u00eete<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Effectuez les raccordements \u00e9lectriques \u00e0 l&#039;ext\u00e9rieur de la bo\u00eete de jonction. Les points de connexion expos\u00e9s peuvent provoquer des incendies et des \u00e9lectrocutions. Tous les contacts doivent \u00eatre enti\u00e8rement enferm\u00e9s dans une bo\u00eete de jonction homologu\u00e9e et munie d&#039;un couvercle.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mixing_Incompatible_Wire_Gauges\"><\/span>M\u00e9langer des fils de calibres incompatibles<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Cela peut entra\u00eener une surchauffe due \u00e0 une r\u00e9partition in\u00e9gale de la charge. Il est donc n\u00e9cessaire de s&#039;assurer que la section des c\u00e2bles est adapt\u00e9e aux exigences du circuit et au calibre du disjoncteur.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Using_the_Wrong_Type_of_Junction_Box\"><\/span>Utilisation d&#039;un type de bo\u00eete de jonction inappropri\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Par exemple, des bo\u00eetes de jonction con\u00e7ues pour l&#039;int\u00e9rieur ont \u00e9t\u00e9 utilis\u00e9es \u00e0 l&#039;ext\u00e9rieur, ou des bo\u00eetes de jonction en plastique ont \u00e9t\u00e9 utilis\u00e9es \u00e0 la place de bo\u00eetes m\u00e9talliques. Ces pratiques peuvent entra\u00eener de la condensation \u00e0 l&#039;int\u00e9rieur de la bo\u00eete, corroder les composants internes et provoquer des pannes m\u00e9caniques.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>FAQ<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49445\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box.jpg\" alt=\"Bo\u00eete de jonction \u00e9lectrique\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Can_I_Install_the_Junction_Box_by_Myself\"><\/span>Puis-je installer la bo\u00eete de jonction moi-m\u00eame\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Si vous poss\u00e9dez des connaissances de base en \u00e9lectricit\u00e9, l&#039;installation du circuit est simple\u00a0; vous pouvez installer vous-m\u00eame la bo\u00eete de jonction. Pour l&#039;installation de circuits \u00e0 haute tension ou de phase, il est recommand\u00e9 de faire appel \u00e0 un \u00e9lectricien qualifi\u00e9.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_Do_You_Ground_a_Metal_Junction_Box\"><\/span>Comment mettre \u00e0 la terre une bo\u00eete de jonction m\u00e9tallique\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ins\u00e9rez la vis de mise \u00e0 la terre verte dans le trou filet\u00e9 et enroulez le fil de terre autour de la vis dans le sens horaire. Serrez ensuite la vis. \u00c0 l&#039;int\u00e9rieur du bo\u00eetier, il est n\u00e9cessaire de raccorder les fils de terre d&#039;entr\u00e9e et de sortie. Raccordez le fil de terre au bo\u00eetier, puis torsadez-les ensemble \u00e0 l&#039;aide d&#039;un connecteur pour les fixer.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_a_Junction_Box_be_Installed_Outdoors\"><\/span>Peut-on installer une bo\u00eete de jonction \u00e0 l&#039;ext\u00e9rieur\u00a0?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Oui, mais vous devez choisir le type de bo\u00eete de jonction appropri\u00e9 et l&#039;installer correctement. Vous pouvez choisir une bo\u00eete de jonction \u00e9tanche aux intemp\u00e9ries portant la mention \u00ab\u00a0usage ext\u00e9rieur\u00a0\u00bb, comme par exemple\u00a0: <a href=\"https:\/\/www.kdmsteel.com\/fr\/boite-de-jonction-nema-4\/\">NEMA 4<\/a>\u00a0ou NEMA 4X. Les bo\u00eetes de jonction ext\u00e9rieures doivent \u00eatre munies d&#039;un couvercle \u00e0 joint et utiliser des accessoires d&#039;\u00e9tanch\u00e9it\u00e9 appropri\u00e9s. Elles doivent \u00eatre install\u00e9es sur les murs ou les piliers, en \u00e9vitant tout contact direct avec le sol afin de pr\u00e9venir l&#039;accumulation d&#039;eau.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Final_Thought\"><\/span>Derni\u00e8re r\u00e9flexion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>KDM est un fabricant qui s&#039;engage \u00e0 vous fournir des bo\u00eetes de jonction de haute qualit\u00e9. Nos bo\u00eetes de jonction offrent un large choix d&#039;indices de protection IP et NEMA. Pour toute demande de personnalisation, nous proposons \u00e9galement un service complet. <a href=\"https:\/\/www.kdmsteel.com\/fr\/contact\/\">Contactez-nous<\/a>\u00a0pour obtenir votre solution personnalis\u00e9e.<\/p>","protected":false},"excerpt":{"rendered":"<p>Proper installation of the junction box can improve electrical safety and comply with electrical codes. For electrical contractors and facility managers, this article provides you with practical installation guidelines, from tool selection to detailed installation steps, to assist you in completing all operations safely. What Is an Electrical Junction Box? A junction box\u00a0is a protective [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":49445,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":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":"disabled","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","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-49439","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Install an Electrical Junction Box - KDM Steel<\/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.kdmsteel.com\/fr\/comment-installer-une-boite-de-jonction-electrique\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Install an Electrical Junction Box - KDM Steel\" \/>\n<meta property=\"og:description\" content=\"Proper installation of the junction box can improve electrical safety and comply with electrical codes. For electrical contractors and facility managers, this article provides you with practical installation guidelines, from tool selection to detailed installation steps, to assist you in completing all operations safely. What Is an Electrical Junction Box? 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