{"id":2171,"date":"2025-08-25T15:21:36","date_gmt":"2025-08-25T07:21:36","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&#038;p=2171"},"modified":"2025-11-03T17:29:13","modified_gmt":"2025-11-03T09:29:13","slug":"how-to-install-type-2-surge-protector","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/fr\/blog\/how-to-install-type-2-surge-protector\/","title":{"rendered":"Comment installer un parasurtenseur de type 2 (guide \u00e9tape par \u00e9tape avec diagrammes)"},"content":{"rendered":"<h2 data-start=\"333\" data-end=\"350\">Introduction<\/h2>\r\n<p data-start=\"351\" data-end=\"630\">Les surtensions sont l\u2019une des causes les plus courantes de panne d\u2019\u00e9quipement \u00e9lectrique. M\u00eame si les coups de foudre sont responsables de certaines surtensions, la majorit\u00e9 sont caus\u00e9es par des op\u00e9rations de commutation, des moteurs ou des perturbations au sein du r\u00e9seau lui-m\u00eame. C\u2019est l\u00e0 qu\u2019intervient un parasurtenseur de type 2.<\/p>\r\n<p data-start=\"632\" data-end=\"883\">Les SPD (dispositifs de protection contre les surtensions) de type 2 sont install\u00e9s dans le tableau de distribution principal ou en amont des syst\u00e8mes UPS. Leur travail consiste \u00e0 lutter contre les surtensions transitoires et \u00e0 d\u00e9tourner en toute s\u00e9curit\u00e9 les courants de surtension vers la terre, assurant ainsi la s\u00e9curit\u00e9 de vos appareils sensibles.<\/p>\r\n<p data-start=\"885\" data-end=\"1235\">Dans ce guide, nous expliquerons \u00e9tape par \u00e9tape comment installer un parasurtenseur de type 2. Vous d\u00e9couvrirez les outils dont vous avez besoin, les contr\u00f4les de s\u00e9curit\u00e9, les sch\u00e9mas de c\u00e2blage et les m\u00e9thodes de test. Et nous irons plus loin que la plupart des blogs pour d\u00e9butants en faisant r\u00e9f\u00e9rence aux normes CEI 61643, aux meilleures pratiques de c\u00e2blage et \u00e0 des conseils d'ing\u00e9nierie pratiques qui vous \u00e9viteront des erreurs co\u00fbteuses.<\/p>\r\n\r\n<h2 data-start=\"1242\" data-end=\"1280\">Qu'est-ce qu'un parasurtenseur de type 2\u00a0?<\/h2>\r\n<p data-start=\"1281\" data-end=\"1394\">A <a href=\"https:\/\/www.britecelectric.com\/fr\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"1283\" data-end=\"1297\">Parafoudre de type 2<\/strong> <\/a>est con\u00e7u pour g\u00e9rer les surintensit\u00e9s dues aux coups de foudre indirects et aux op\u00e9rations de commutation.<\/p>\r\n\r\n<ul data-start=\"1396\" data-end=\"1718\">\r\n \t<li data-start=\"1396\" data-end=\"1520\">\r\n<p data-start=\"1398\" data-end=\"1520\">O\u00f9 il va\u00a0: Install\u00e9 dans le tableau de distribution principal (unit\u00e9 consommateur) ou du c\u00f4t\u00e9 entr\u00e9e des syst\u00e8mes UPS.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1521\" data-end=\"1621\">\r\n<p data-start=\"1523\" data-end=\"1621\">Contre quoi il prot\u00e8ge\u00a0: Les surtensions induites par la foudre, les transitoires de commutation, les perturbations du r\u00e9seau.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1622\" data-end=\"1718\">\r\n<p data-start=\"1624\" data-end=\"1718\">Comment \u00e7a marche\u00a0: En limitant la surtension (Up) et en d\u00e9tournant l'\u00e9nergie vers la terre (PE).<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"1720\" data-end=\"1762\"><strong data-start=\"1720\" data-end=\"1760\">Param\u00e8tres cl\u00e9s d\u00e9finis par la norme CEI 61643\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"1763\" data-end=\"2155\">\r\n \t<li data-start=\"1763\" data-end=\"1866\">\r\n<p data-start=\"1765\" data-end=\"1866\">Uc (tension de fonctionnement continue maximale)\u00a0: la tension efficace maximale que le SPD peut g\u00e9rer en continu.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1867\" data-end=\"1960\">\r\n<p data-start=\"1869\" data-end=\"1960\">Haut (niveau de protection de tension)\u00a0: le niveau de serrage qui reste du c\u00f4t\u00e9 prot\u00e9g\u00e9.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1961\" data-end=\"2067\">\r\n<p data-start=\"1963\" data-end=\"2067\">In (courant de d\u00e9charge nominal) : courant de surtension que le SPD peut supporter \u00e0 plusieurs reprises (forme d'onde 8\/20 \u03bcs).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2068\" data-end=\"2155\">\r\n<p data-start=\"2070\" data-end=\"2155\">Imax (courant de d\u00e9charge maximal)\u00a0: la plus grande surtension unique \u00e0 laquelle le SPD peut survivre.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2157\" data-end=\"2228\">Par exemple, celui de notre entreprise <a href=\"https:\/\/www.britecelectric.com\/fr\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"2184\" data-end=\"2213\">SLP40-275\/3S+1 SPD type 2<\/strong><\/a> est \u00e9valu\u00e9 \u00e0\u00a0:<\/p>\r\n\r\n<ul data-start=\"2229\" data-end=\"2294\">\r\n \t<li data-start=\"2229\" data-end=\"2246\">\r\n<p data-start=\"2231\" data-end=\"2246\">Uc = 275 V CA<\/p>\r\n<\/li>\r\n \t<li data-start=\"2247\" data-end=\"2261\">\r\n<p data-start=\"2249\" data-end=\"2261\">In = 20 kA<\/p>\r\n<\/li>\r\n \t<li data-start=\"2262\" data-end=\"2278\">\r\n<p data-start=\"2264\" data-end=\"2278\">Imax = 40 kA<\/p>\r\n<\/li>\r\n \t<li data-start=\"2279\" data-end=\"2294\">\r\n<p data-start=\"2281\" data-end=\"2294\">Jusqu'\u00e0 \u2264 1,5 kV<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2296\" data-end=\"2409\">Cela le rend id\u00e9al pour les tableaux de distribution r\u00e9sidentiels, commerciaux et industriels, ainsi que pour la protection des UPS.<\/p>\r\n\r\n<h2 data-start=\"2416\" data-end=\"2459\">Pr\u00e9cautions de s\u00e9curit\u00e9 avant l'installation<\/h2>\r\n<p data-start=\"2460\" data-end=\"2553\">Installer un SPD signifie travailler \u00e0 l\u2019int\u00e9rieur d\u2019un panneau de distribution sous tension. La s\u00e9curit\u00e9 n'est pas n\u00e9gociable.<\/p>\r\n\r\n<ol data-start=\"2555\" data-end=\"2997\">\r\n \t<li data-start=\"2555\" data-end=\"2616\">\r\n<p data-start=\"2558\" data-end=\"2616\">Coupez compl\u00e8tement l\u2019alimentation au niveau du disjoncteur principal.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2617\" data-end=\"2684\">\r\n<p data-start=\"2620\" data-end=\"2684\">V\u00e9rifiez avec un testeur que tous les conducteurs sont hors tension.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2685\" data-end=\"2790\">\r\n<p data-start=\"2688\" data-end=\"2790\">Appliquer le verrouillage\/\u00e9tiquetage (LOTO)\u00a0: utilisez des dispositifs et des \u00e9tiquettes de verrouillage pour emp\u00eacher une remise sous tension accidentelle.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2791\" data-end=\"2861\">\r\n<p data-start=\"2794\" data-end=\"2861\">Porter des EPI : Gants isolants, lunettes de protection, chaussures de s\u00e9curit\u00e9.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2862\" data-end=\"2997\">\r\n<p data-start=\"2865\" data-end=\"2997\">V\u00e9rifiez le syst\u00e8me de mise \u00e0 la terre\u00a0: assurez-vous que votre barre PE est correctement reli\u00e9e et que la r\u00e9sistance est conforme aux normes (\u226410 \u03a9 dans la plupart des juridictions).<\/p>\r\n<\/li>\r\n<\/ol>\r\n<p data-start=\"2999\" data-end=\"3173\"><strong data-start=\"3002\" data-end=\"3016\">Important:<\/strong> Les r\u00e9glementations locales (IEC 60364, BS 7671, NEC ou votre code national) peuvent exiger l'installation par un \u00e9lectricien agr\u00e9\u00e9. Respectez toujours les normes locales.<\/p>\r\n<p data-start=\"2999\" data-end=\"3173\"><a href=\"https:\/\/www.britecelectric.com\/fr\/attachment\/br-20-4p-1type-2-surge-protection-device-jpg\/\" rel=\"attachment wp-att-2160\"><img class=\"alignnone wp-image-2160\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/BR-20-4P-1Type-2-Surge-Protection-Device.jpg.webp\" alt=\"\" width=\"872\" \/><\/a><\/p>\r\n\r\n<h2 data-start=\"3180\" data-end=\"3218\">Outils et mat\u00e9riaux dont vous aurez besoin<\/h2>\r\n<ul data-start=\"3219\" data-end=\"3600\">\r\n \t<li data-start=\"3219\" data-end=\"3266\">\r\n<p data-start=\"3221\" data-end=\"3266\">Module SPD de type 2 (par exemple SLP40-275\/3S+1)<\/p>\r\n<\/li>\r\n \t<li data-start=\"3267\" data-end=\"3311\">\r\n<p data-start=\"3269\" data-end=\"3311\">Espace de montage sur rail DIN \u00e0 l'int\u00e9rieur du panneau<\/p>\r\n<\/li>\r\n \t<li data-start=\"3312\" data-end=\"3381\">\r\n<p data-start=\"3314\" data-end=\"3381\">Conducteur en cuivre\u00a0: \u22656 mm\u00b2 pour les SPD de type 2 (recommandation CEI)<\/p>\r\n<\/li>\r\n \t<li data-start=\"3382\" data-end=\"3431\">\r\n<p data-start=\"3384\" data-end=\"3431\">Tournevis dynamom\u00e9trique appropri\u00e9 ou cl\u00e9 isol\u00e9e<\/p>\r\n<\/li>\r\n \t<li data-start=\"3432\" data-end=\"3541\">\r\n<p data-start=\"3434\" data-end=\"3541\">Dispositif de protection de secours\u00a0: MCB\/fusible, ou choisissez SPD avec fusible de secours int\u00e9gr\u00e9 (par exemple s\u00e9rie BR-30FU)<\/p>\r\n<\/li>\r\n \t<li data-start=\"3542\" data-end=\"3576\">\r\n<p data-start=\"3544\" data-end=\"3576\">Testeur d'isolement et multim\u00e8tre<\/p>\r\n<\/li>\r\n \t<li data-start=\"3577\" data-end=\"3600\">\r\n<p data-start=\"3579\" data-end=\"3600\">Sangle de mise \u00e0 la terre<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2>Guide d'installation \u00e9tape par \u00e9tape pour <a href=\"https:\/\/www.britecelectric.com\/fr\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\">Parafoudre de type 2<\/a><\/h2>\r\n&nbsp;\r\n\r\n<a href=\"https:\/\/www.britecelectric.com\/fr\/attachment\/type-2-spd-install\/\" rel=\"attachment wp-att-2158\"><img class=\"alignnone size-full wp-image-2158\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/Type-2-SPD-install.jpg\" alt=\"\" width=\"732\" \/><\/a>\r\n<h3 data-start=\"477\" data-end=\"537\"><strong data-start=\"481\" data-end=\"535\">\u00c9tape 1 - Planifier et s\u00e9lectionner l'emplacement d'installation<\/strong><\/h3>\r\n<ul data-start=\"538\" data-end=\"1226\">\r\n \t<li data-start=\"538\" data-end=\"782\">\r\n<p data-start=\"540\" data-end=\"782\"><strong data-start=\"540\" data-end=\"550\">O\u00f9:<\/strong> Le SPD de type 2 doit \u00eatre install\u00e9 dans le tableau de distribution principal ou du c\u00f4t\u00e9 entr\u00e9e du syst\u00e8me UPS. Cet emplacement lui permet d'intercepter les surtensions de commutation et les transitoires de foudre induits avant qu'ils n'atteignent les charges sensibles.<\/p>\r\n<\/li>\r\n \t<li data-start=\"783\" data-end=\"894\">\r\n<p data-start=\"785\" data-end=\"894\"><strong data-start=\"785\" data-end=\"793\">Pourquoi:<\/strong> L'installation du SPD trop en aval augmente la surtension r\u00e9siduelle (Up) vue par l'\u00e9quipement.<\/p>\r\n<\/li>\r\n \t<li data-start=\"895\" data-end=\"1226\">\r\n<p data-start=\"897\" data-end=\"917\"><strong data-start=\"897\" data-end=\"915\">Meilleure pratique\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"920\" data-end=\"1226\">\r\n \t<li data-start=\"920\" data-end=\"994\">\r\n<p data-start=\"922\" data-end=\"994\">Gardez la longueur totale du conducteur (phase \u2192 SPD \u2192 terre) \u2264 0,5 m.<\/p>\r\n<\/li>\r\n \t<li data-start=\"997\" data-end=\"1066\">\r\n<p data-start=\"999\" data-end=\"1066\">Placez les modules SPD le plus pr\u00e8s possible des jeux de barres (L, N, PE).<\/p>\r\n<\/li>\r\n \t<li data-start=\"1069\" data-end=\"1226\">\r\n<p data-start=\"1071\" data-end=\"1226\">Si la distance entre le type 1 en amont et ce SPD de type 2 est &lt;10 m, ajoutez une inductance de d\u00e9couplage <strong data-start=\"1147\" data-end=\"1186\">(par <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/1865\" target=\"_blank\" rel=\"noopener\">CEI 60364<\/a>)<\/strong> pour assurer une bonne coordination \u00e9nerg\u00e9tique.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1233\" data-end=\"1295\"><strong data-start=\"1237\" data-end=\"1293\">\u00c9tape 2 - Pr\u00e9parez le tableau de distribution et le rail DIN<\/strong><\/h3>\r\n<ul data-start=\"1296\" data-end=\"1792\">\r\n \t<li data-start=\"1296\" data-end=\"1445\">\r\n<p data-start=\"1298\" data-end=\"1445\">Assurez-vous que le tableau de distribution est compl\u00e8tement hors tension. V\u00e9rifiez avec un multim\u00e8tre ou un d\u00e9tecteur de tension sur toutes les phases entrantes et le neutre.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1446\" data-end=\"1529\">\r\n<p data-start=\"1448\" data-end=\"1529\">V\u00e9rifiez que le rail DIN est solidement fix\u00e9, propre et exempt de corrosion.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1530\" data-end=\"1617\">\r\n<p data-start=\"1532\" data-end=\"1617\">Laissez un espace suffisant autour du SPD pour la ventilation et l'entretien futur.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1618\" data-end=\"1792\">\r\n<p data-start=\"1620\" data-end=\"1792\">Conseil issu de la pratique sur le terrain\u00a0: montez toujours les SPD modulaires verticalement lorsque cela est possible. Cela favorise la dissipation naturelle de la chaleur et facilite l'inspection des fen\u00eatres indicatrices.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1799\" data-end=\"1851\"><strong data-start=\"1803\" data-end=\"1849\">\u00c9tape 3 \u2013 Connectez les conducteurs (L, N, PE)<\/strong><\/h3>\r\n<p data-start=\"1852\" data-end=\"1944\">Un c\u00e2blage appropri\u00e9 est essentiel, car de mauvaises connexions peuvent compl\u00e8tement compromettre la protection contre les surtensions.<\/p>\r\n\r\n<ul data-start=\"1946\" data-end=\"2853\">\r\n \t<li data-start=\"1946\" data-end=\"2093\">\r\n<p data-start=\"1948\" data-end=\"1969\"><strong data-start=\"1948\" data-end=\"1967\">Taille du conducteur\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"1972\" data-end=\"2093\">\r\n \t<li data-start=\"1972\" data-end=\"2032\">\r\n<p data-start=\"1974\" data-end=\"2032\">SPD de type 2 (r\u00e9sidentiel\/commercial)\u00a0: \u2265 6 mm\u00b2 de cuivre.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2035\" data-end=\"2093\">\r\n<p data-start=\"2037\" data-end=\"2093\">Parafoudre type 1 (\u00e0 l'entr\u00e9e de service) : \u2265 16 mm\u00b2 cuivre.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"2094\" data-end=\"2359\">\r\n<p data-start=\"2096\" data-end=\"2119\"><strong data-start=\"2096\" data-end=\"2117\">Ordre de connexion\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"2122\" data-end=\"2359\">\r\n \t<li data-start=\"2122\" data-end=\"2195\">\r\n<p data-start=\"2124\" data-end=\"2195\">Connectez les conducteurs de phase (L1, L2, L3) aux bornes d'entr\u00e9e SPD.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2198\" data-end=\"2266\">\r\n<p data-start=\"2200\" data-end=\"2266\">Connectez le neutre (N) si le type de SPD l'exige (4P ou 3+1).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2269\" data-end=\"2359\">\r\n<p data-start=\"2271\" data-end=\"2359\">Connectez la terre (PE) directement \u00e0 la barre de terre avec le conducteur le plus court possible.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"2360\" data-end=\"2519\">\r\n<p data-start=\"2362\" data-end=\"2519\"><strong data-start=\"2362\" data-end=\"2373\">Couple\u00a0:<\/strong> Serrez les bornes conform\u00e9ment \u00e0 la fiche technique du fabricant (g\u00e9n\u00e9ralement 2,5 \u00e0 3,5 Nm pour 6 mm\u00b2 Cu). Les bornes desserr\u00e9es cr\u00e9ent des risques de chauffage et d'arc \u00e9lectrique.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2520\" data-end=\"2706\">\r\n<p data-start=\"2522\" data-end=\"2706\"><strong data-start=\"2522\" data-end=\"2549\">Pourquoi les leads courts sont importants\u00a0:<\/strong> Tous les 10 cm de longueur de fil ajoutent environ 1 kV de surtension r\u00e9siduelle. Cela signifie que les c\u00e2bles longs ou enroul\u00e9s peuvent s'\u00e9lever au-del\u00e0 de la tol\u00e9rance de l'\u00e9quipement.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2707\" data-end=\"2853\">\r\n<p data-start=\"2709\" data-end=\"2853\"><strong data-start=\"2709\" data-end=\"2728\">Erreur courante\u00a0:<\/strong> Faire passer le fil PE parall\u00e8lement aux fils de phase sur de longues distances. Cela augmente le couplage inductif et affaiblit la protection.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"2860\" data-end=\"2914\"><strong data-start=\"2864\" data-end=\"2912\">\u00c9tape 4 \u2013 Ajouter une protection de sauvegarde (Fuse ou MCB)<\/strong><\/h3>\r\n<ul data-start=\"2915\" data-end=\"3599\">\r\n \t<li data-start=\"2915\" data-end=\"3148\">\r\n<p data-start=\"2917\" data-end=\"3148\"><strong data-start=\"2917\" data-end=\"2932\">Pourquoi n\u00e9cessaire\u00a0:<\/strong> Un SPD est connect\u00e9 en parall\u00e8le au syst\u00e8me. S'il tombe en panne en raison d'une forte exposition aux surtensions, il peut se produire un court-circuit. Un dispositif de protection de secours d\u00e9di\u00e9 assure une d\u00e9connexion s\u00fbre sans d\u00e9clencher le disjoncteur principal.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3149\" data-end=\"3454\">\r\n<p data-start=\"3151\" data-end=\"3165\"><strong data-start=\"3151\" data-end=\"3163\">Possibilit\u00e9s\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"3168\" data-end=\"3454\">\r\n \t<li data-start=\"3168\" data-end=\"3294\">\r\n<p data-start=\"3170\" data-end=\"3294\">SPD standard\u00a0: connectez-vous via un MCB (20 \u00e0 32\u00a0A typique pour un usage r\u00e9sidentiel) ou un fusible, \u00e9valu\u00e9 en fonction des valeurs In et Imax du SPD.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3297\" data-end=\"3454\">\r\n<p data-start=\"3299\" data-end=\"3454\">Solution int\u00e9gr\u00e9e\u00a0: utilisez des SPD avec des fusibles de secours int\u00e9gr\u00e9s (par exemple, notre s\u00e9rie BR-30FU), ce qui \u00e9limine le besoin d'un dispositif de protection externe.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"3455\" data-end=\"3599\">\r\n<p data-start=\"3457\" data-end=\"3599\">Normes\u00a0:\u00a0CEI 61643 et BS 7671 recommandent toutes deux une coordination s\u00e9lective entre le SPD et les disjoncteurs en amont pour \u00e9viter les d\u00e9clenchements intempestifs.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"3606\" data-end=\"3659\"><strong data-start=\"3610\" data-end=\"3657\">\u00c9tape 5 \u2013 Assurer une mise \u00e0 la terre et une liaison ad\u00e9quates<\/strong><\/h3>\r\n<ul data-start=\"3660\" data-end=\"4261\">\r\n \t<li data-start=\"3660\" data-end=\"3799\">\r\n<p data-start=\"3662\" data-end=\"3799\"><strong data-start=\"3662\" data-end=\"3687\">Chemin direct vers la Terre\u00a0:<\/strong> La borne de terre du SPD doit \u00eatre reli\u00e9e directement \u00e0 la barre PE. Ne connectez pas en s\u00e9rie d\u2019autres appareils.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3800\" data-end=\"3957\">\r\n<p data-start=\"3802\" data-end=\"3957\"><strong data-start=\"3802\" data-end=\"3823\">R\u00e9sistance de terre\u00a0:<\/strong> Selon la norme CEI 60364, la r\u00e9sistance de mise \u00e0 la terre doit g\u00e9n\u00e9ralement \u00eatre \u226410 \u03a9, \u22641 \u03a9 \u00e9tant pr\u00e9f\u00e9r\u00e9e dans les centres de donn\u00e9es et les installations de t\u00e9l\u00e9communications.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3958\" data-end=\"4128\">\r\n<p data-start=\"3960\" data-end=\"4128\"><strong data-start=\"3960\" data-end=\"3986\">Liaison \u00e9quipotentielle\u00a0:<\/strong> Assurez-vous que tous les bo\u00eetiers m\u00e9talliques et blindages de c\u00e2bles sont reli\u00e9s au m\u00eame potentiel pour \u00e9viter des diff\u00e9rences de potentiel dangereuses lors de surtensions.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4129\" data-end=\"4261\">\r\n<p data-start=\"4131\" data-end=\"4261\"><strong data-start=\"4131\" data-end=\"4139\">Conseil:<\/strong> Utilisez des conducteurs plats ou du cuivre tress\u00e9 lorsque cela est possible pour le PE, car ils ont une inductance inf\u00e9rieure \u00e0 celle des conducteurs ronds.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"4268\" data-end=\"4312\"><strong data-start=\"4272\" data-end=\"4310\">\u00c9tape 6 \u2013 Mise en service et tests<\/strong><\/h3>\r\n<p data-start=\"4313\" data-end=\"4383\">Avant de remettre le syst\u00e8me sous tension, v\u00e9rifiez soigneusement l'installation\u00a0:<\/p>\r\n\r\n<ol data-start=\"4385\" data-end=\"5166\">\r\n \t<li data-start=\"4385\" data-end=\"4561\">\r\n<p data-start=\"4388\" data-end=\"4412\"><strong data-start=\"4388\" data-end=\"4410\">Inspection visuelle\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"4416\" data-end=\"4561\">\r\n \t<li data-start=\"4416\" data-end=\"4465\">\r\n<p data-start=\"4418\" data-end=\"4465\">Confirmez que toutes les connexions sont correctes (L\/N\/PE).<\/p>\r\n<\/li>\r\n \t<li data-start=\"4469\" data-end=\"4523\">\r\n<p data-start=\"4471\" data-end=\"4523\">V\u00e9rifiez que les longueurs de conducteur sont aussi courtes que possible.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4527\" data-end=\"4561\">\r\n<p data-start=\"4529\" data-end=\"4561\">V\u00e9rifiez le couple sur chaque borne.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"4562\" data-end=\"4682\">\r\n<p data-start=\"4565\" data-end=\"4587\"><strong data-start=\"4565\" data-end=\"4585\">Test d'isolation\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"4591\" data-end=\"4682\">\r\n \t<li data-start=\"4591\" data-end=\"4682\">\r\n<p data-start=\"4593\" data-end=\"4682\">Effectuez des tests de r\u00e9sistance d'isolement entre L\u2013N, L\u2013PE, N\u2013PE pour garantir l'int\u00e9grit\u00e9 du c\u00e2blage.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"4683\" data-end=\"4869\">\r\n<p data-start=\"4686\" data-end=\"4707\"><strong data-start=\"4686\" data-end=\"4705\">V\u00e9rification de la mise sous tension\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"4711\" data-end=\"4869\">\r\n \t<li data-start=\"4711\" data-end=\"4869\">\r\n<p data-start=\"4713\" data-end=\"4786\">Mettez sous tension et observez la fen\u00eatre d\u2019indicateur d\u2019\u00e9tat sur le SPD\u00a0:<\/p>\r\n\r\n<ul data-start=\"4792\" data-end=\"4869\">\r\n \t<li data-start=\"4792\" data-end=\"4815\">\r\n<p data-start=\"4794\" data-end=\"4815\">Vert = op\u00e9rationnel<\/p>\r\n<\/li>\r\n \t<li data-start=\"4821\" data-end=\"4869\">\r\n<p data-start=\"4823\" data-end=\"4869\">Rouge = le module est en panne et doit \u00eatre remplac\u00e9<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"4870\" data-end=\"5003\">\r\n<p data-start=\"4873\" data-end=\"4916\"><strong data-start=\"4873\" data-end=\"4914\">Test de signalisation \u00e0 distance (si disponible)\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"4920\" data-end=\"5003\">\r\n \t<li data-start=\"4920\" data-end=\"5003\">\r\n<p data-start=\"4922\" data-end=\"5003\">Pour les SPD avec contacts \u00e0 distance, v\u00e9rifiez l'int\u00e9gration de l'alarme avec les syst\u00e8mes BMS\/SCADA.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"5004\" data-end=\"5166\">\r\n<p data-start=\"5007\" data-end=\"5027\"><strong data-start=\"5007\" data-end=\"5025\">Documentation:<\/strong><\/p>\r\n\r\n<ul data-start=\"5031\" data-end=\"5166\">\r\n \t<li data-start=\"5031\" data-end=\"5166\">\r\n<p data-start=\"5033\" data-end=\"5166\">Enregistrez le type de SPD, le num\u00e9ro de mod\u00e8le, les param\u00e8tres nominaux (Uc, In, Imax, Up), la date d'installation et l'emplacement du circuit pour une maintenance future.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ol>\r\n<p data-start=\"5173\" data-end=\"5607\"><strong data-start=\"5175\" data-end=\"5222\">Candidat d'extrait en vedette (style de r\u00e9sum\u00e9)\u00a0:<\/strong><br data-start=\"5222\" data-end=\"5225\" \/><em data-start=\"5225\" data-end=\"5605\">Pour installer un parasurtenseur de type 2, d\u00e9branchez l'alimentation et montez-le sur le rail DIN \u00e0 l'int\u00e9rieur du tableau de distribution. Connectez les conducteurs L\/N\/PE en utilisant du cuivre \u22656 mm\u00b2 d'une longueur totale \u22640,5 m, ajoutez un fusible de secours ou un MCB et assurez une mise \u00e0 la terre directe \u00e0 la barre PE. Apr\u00e8s avoir serr\u00e9 au couple correct, effectuez des tests d'isolation, v\u00e9rifiez l'indicateur d'\u00e9tat et documentez l'installation.<\/em><\/p>\r\n<img class=\"alignnone size-medium wp-image-2236\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/How-to-Install-Type-2-Surge-Protector.jpg\" alt=\"Comment installer un parasurtenseur de type 2\" width=\"1000\" \/>\r\n\r\n&nbsp;\r\n<h2 data-start=\"321\" data-end=\"356\">Sch\u00e9mas de c\u00e2blage pour SPD de type 2<\/h2>\r\n<h3 data-start=\"358\" data-end=\"404\"><strong data-start=\"362\" data-end=\"402\">Syst\u00e8me monophas\u00e9 (230 V, TN-S\/TT)<\/strong><\/h3>\r\n<ul data-start=\"405\" data-end=\"1033\">\r\n \t<li data-start=\"405\" data-end=\"634\">\r\n<p data-start=\"407\" data-end=\"427\"><strong data-start=\"407\" data-end=\"425\">Configuration:<\/strong><\/p>\r\n\r\n<ul data-start=\"430\" data-end=\"634\">\r\n \t<li data-start=\"430\" data-end=\"496\">\r\n<p data-start=\"432\" data-end=\"496\">Connectez le SPD entre L et N et entre N et PE.<\/p>\r\n<\/li>\r\n \t<li data-start=\"499\" data-end=\"634\">\r\n<p data-start=\"501\" data-end=\"634\">Pour les syst\u00e8mes TT, assurez-vous que le chemin de protection N-PE utilise un \u00e9clateur ou une combinaison MOV+GDT pour \u00e9viter les courants de fuite continus.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"635\" data-end=\"851\">\r\n<p data-start=\"637\" data-end=\"661\"><strong data-start=\"637\" data-end=\"659\">Protection des sauvegardes\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"664\" data-end=\"851\">\r\n \t<li data-start=\"664\" data-end=\"768\">\r\n<p data-start=\"666\" data-end=\"768\">Un fusible d\u00e9di\u00e9 ou MCB doit \u00eatre install\u00e9 sur le conducteur de phase (L) alimentant la branche SPD.<\/p>\r\n<\/li>\r\n \t<li data-start=\"771\" data-end=\"851\">\r\n<p data-start=\"773\" data-end=\"851\">Configuration r\u00e9sidentielle typique\u00a0: MCB de 20 \u00e0 32\u00a0A \u00e9valu\u00e9 selon In\/Imax du SPD.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"852\" data-end=\"1033\">\r\n<p data-start=\"854\" data-end=\"1033\"><strong data-start=\"854\" data-end=\"873\">Pourquoi c'est important\u00a0:<\/strong> Sans protection de secours appropri\u00e9e, une d\u00e9faillance du SPD peut provoquer un court-circuit permanent, d\u00e9clenchant le disjoncteur principal et coupant l'alimentation de l'ensemble de l'installation.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1040\" data-end=\"1082\"><strong data-start=\"1044\" data-end=\"1080\">Syst\u00e8me triphas\u00e9 (400 V, TN-S)<\/strong><\/h3>\r\n<ul data-start=\"1083\" data-end=\"1836\">\r\n \t<li data-start=\"1083\" data-end=\"1297\">\r\n<p data-start=\"1085\" data-end=\"1105\"><strong data-start=\"1085\" data-end=\"1103\">Configuration:<\/strong><\/p>\r\n\r\n<ul data-start=\"1108\" data-end=\"1297\">\r\n \t<li data-start=\"1108\" data-end=\"1163\">\r\n<p data-start=\"1110\" data-end=\"1163\">SPD connect\u00e9 sur L1-PE, L2-PE, L3-PE, N-PE.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1166\" data-end=\"1297\">\r\n<p data-start=\"1168\" data-end=\"1297\">Configuration 3+1 recommand\u00e9e\u00a0: MOV sur chaque phase jusqu'au neutre (L1-N, L2-N, L3-N), plus un \u00e9clateur entre N et PE.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"1298\" data-end=\"1492\">\r\n<p data-start=\"1300\" data-end=\"1338\"><strong data-start=\"1300\" data-end=\"1336\">Avantages de la configuration 3+1\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"1341\" data-end=\"1492\">\r\n \t<li data-start=\"1341\" data-end=\"1396\">\r\n<p data-start=\"1343\" data-end=\"1396\">R\u00e9duit la tension r\u00e9siduelle entre le neutre et la terre.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1399\" data-end=\"1492\">\r\n<p data-start=\"1401\" data-end=\"1492\">Fournit une meilleure coordination dans les syst\u00e8mes TT et TN-S o\u00f9 un d\u00e9placement neutre peut se produire.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"1493\" data-end=\"1620\">\r\n<p data-start=\"1495\" data-end=\"1519\"><strong data-start=\"1495\" data-end=\"1517\">Protection des sauvegardes\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"1522\" data-end=\"1620\">\r\n \t<li data-start=\"1522\" data-end=\"1620\">\r\n<p data-start=\"1524\" data-end=\"1620\">En r\u00e8gle g\u00e9n\u00e9rale, des disjoncteurs de 32 \u00e0 63 A sont requis pour chaque branche SPD dans les syst\u00e8mes industriels\/commerciaux.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"1621\" data-end=\"1836\">\r\n<p data-start=\"1623\" data-end=\"1836\"><strong data-start=\"1623\" data-end=\"1644\">Conseil professionnel\u00a0:<\/strong> Lors de la protection d'onduleurs triphas\u00e9s ou de charges moteur, v\u00e9rifiez toujours que le courant nominal de court-circuit (Isc) du SPD correspond au niveau de d\u00e9faut au point de distribution (exigence CEI 61643-11).<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1843\" data-end=\"1899\"><strong data-start=\"1847\" data-end=\"1897\">Int\u00e9gration UPS (alimentation sans coupure)<\/strong><\/h3>\r\n<ul data-start=\"1900\" data-end=\"2715\">\r\n \t<li data-start=\"1900\" data-end=\"2067\">\r\n<p data-start=\"1902\" data-end=\"2067\"><strong data-start=\"1902\" data-end=\"1916\">Placement:<\/strong> Installez le SPD de type 2 en amont du redresseur UPS. Cela garantit que les surtensions provenant du r\u00e9seau \u00e9lectrique public sont limit\u00e9es avant d'atteindre l'\u00e9lectronique de l'onduleur.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2068\" data-end=\"2341\">\r\n<p data-start=\"2070\" data-end=\"2105\"><strong data-start=\"2070\" data-end=\"2103\">Pourquoi en amont, pas en aval\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"2108\" data-end=\"2341\">\r\n \t<li data-start=\"2108\" data-end=\"2238\">\r\n<p data-start=\"2110\" data-end=\"2238\">L'installation en aval peut provoquer des d\u00e9clenchements intempestifs, car les onduleurs UPS peuvent g\u00e9n\u00e9rer des harmoniques et des transitoires de commutation rapides.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2241\" data-end=\"2341\">\r\n<p data-start=\"2243\" data-end=\"2341\">Le placement en amont prot\u00e8ge les redresseurs, les condensateurs CC et les modules onduleurs, prolongeant ainsi la dur\u00e9e de vie de l'onduleur.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"2342\" data-end=\"2544\">\r\n<p data-start=\"2344\" data-end=\"2376\"><strong data-start=\"2344\" data-end=\"2374\">Exemple avec nos produits :<\/strong><\/p>\r\n\r\n<ul data-start=\"2379\" data-end=\"2544\">\r\n \t<li data-start=\"2379\" data-end=\"2544\">\r\n<p data-start=\"2381\" data-end=\"2544\">Le SLP40-275\/3S+1 en amont d'un UPS \u00e0 double conversion garantit que les courants de surtension jusqu'\u00e0 40 kA sont d\u00e9tourn\u00e9s en toute s\u00e9curit\u00e9, \u00e9vitant ainsi toute contrainte sur les IGBT et les batteries de l'onduleur.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"2545\" data-end=\"2715\">\r\n<p data-start=\"2547\" data-end=\"2715\"><strong data-start=\"2547\" data-end=\"2568\">Note d'ing\u00e9nierie\u00a0:<\/strong> Dans les \u00e9tablissements informatiques ou de sant\u00e9 critiques, envisagez de combiner une cascade de type 1 + de type 2 \u00e0 l'entr\u00e9e de l'onduleur pour la protection contre la foudre et les surtensions de commutation.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"2722\" data-end=\"2751\">Erreurs courantes pour \u00e9viter<\/h2>\r\n<h3 data-start=\"2753\" data-end=\"2781\"><strong data-start=\"2757\" data-end=\"2779\">1. C\u00e2blage trop long<\/strong><\/h3>\r\n<ul data-start=\"2782\" data-end=\"3103\">\r\n \t<li data-start=\"2782\" data-end=\"2848\">\r\n<p data-start=\"2784\" data-end=\"2848\"><strong data-start=\"2784\" data-end=\"2796\">Erreur:<\/strong> SPD connect\u00e9 avec une longueur totale de conducteur &gt;0,5 m.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2849\" data-end=\"2990\">\r\n<p data-start=\"2851\" data-end=\"2990\"><strong data-start=\"2851\" data-end=\"2865\">Pourquoi mal\u00a0:<\/strong> Chaque 10 cm ajoute ~1 kV \u00e0 la tension r\u00e9siduelle (Up). Les composants \u00e9lectroniques sensibles (r\u00e9sistance nominale de 1,5 kV) peuvent toujours \u00eatre d\u00e9truits.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2991\" data-end=\"3103\">\r\n<p data-start=\"2993\" data-end=\"3103\"><strong data-start=\"2993\" data-end=\"3011\">Bonne pratique\u00a0:<\/strong> Gardez le SPD aussi pr\u00e8s que possible des jeux de barres\u00a0; utilisez des courses droites, \u00e9vitez les boucles et les virages serr\u00e9s.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"3105\" data-end=\"3138\"><strong data-start=\"3109\" data-end=\"3136\">2. Mauvaise taille de conducteur<\/strong><\/h3>\r\n<ul data-start=\"3139\" data-end=\"3454\">\r\n \t<li data-start=\"3139\" data-end=\"3194\">\r\n<p data-start=\"3141\" data-end=\"3194\"><strong data-start=\"3141\" data-end=\"3153\">Erreur:<\/strong> Utilisation de fils &lt;6 mm\u00b2 Cu pour les SPD de type 2.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3195\" data-end=\"3284\">\r\n<p data-start=\"3197\" data-end=\"3284\"><strong data-start=\"3197\" data-end=\"3213\">Cons\u00e9quence:<\/strong> \u00c9chauffement excessif, risque de rupture d'isolation lors de fortes surtensions.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3285\" data-end=\"3454\">\r\n<p data-start=\"3287\" data-end=\"3307\"><strong data-start=\"3287\" data-end=\"3305\">Bonne pratique\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"3310\" data-end=\"3454\">\r\n \t<li data-start=\"3310\" data-end=\"3349\">\r\n<p data-start=\"3312\" data-end=\"3349\">SPD de type 2 \u2192 \u22656 mm\u00b2 Cu (CEI 60364).<\/p>\r\n<\/li>\r\n \t<li data-start=\"3352\" data-end=\"3380\">\r\n<p data-start=\"3354\" data-end=\"3380\">Type 1 SPD \u2192 \u226516 mm\u00b2 Cu.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3383\" data-end=\"3454\">\r\n<p data-start=\"3385\" data-end=\"3454\">Utilisez des conducteurs \u00e0 faible inductance (en cuivre tress\u00e9 ou plat si possible).<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"3456\" data-end=\"3489\"><strong data-start=\"3460\" data-end=\"3487\">3. Aucune protection de sauvegarde<\/strong><\/h3>\r\n<ul data-start=\"3490\" data-end=\"3839\">\r\n \t<li data-start=\"3490\" data-end=\"3548\">\r\n<p data-start=\"3492\" data-end=\"3548\"><strong data-start=\"3492\" data-end=\"3504\">Erreur:<\/strong> Connexion directe du SPD sans MCB\/fusible.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3549\" data-end=\"3669\">\r\n<p data-start=\"3551\" data-end=\"3669\"><strong data-start=\"3551\" data-end=\"3567\">Cons\u00e9quence:<\/strong> Si le SPD tombe en panne en mode court-circuit, il peut d\u00e9clencher le disjoncteur principal, arr\u00eatant ainsi l'ensemble de l'installation.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3670\" data-end=\"3839\">\r\n<p data-start=\"3672\" data-end=\"3692\"><strong data-start=\"3672\" data-end=\"3690\">Bonne pratique\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"3695\" data-end=\"3839\">\r\n \t<li data-start=\"3695\" data-end=\"3739\">\r\n<p data-start=\"3697\" data-end=\"3739\">Installez toujours un disjoncteur\/fusible d\u00e9di\u00e9.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3742\" data-end=\"3839\">\r\n<p data-start=\"3744\" data-end=\"3839\">Utilisez des mod\u00e8les SPD avec fusibles int\u00e9gr\u00e9s (par exemple notre s\u00e9rie BR-30FU) pour une installation simplifi\u00e9e.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"3841\" data-end=\"3867\"><strong data-start=\"3845\" data-end=\"3865\">4. Mauvaise mise \u00e0 la terre<\/strong><\/h3>\r\n<ul data-start=\"3868\" data-end=\"4281\">\r\n \t<li data-start=\"3868\" data-end=\"3963\">\r\n<p data-start=\"3870\" data-end=\"3963\"><strong data-start=\"3870\" data-end=\"3882\">Erreur:<\/strong> Terre \u00e0 haute r\u00e9sistance (&gt;30 \u03a9) ou long cheminement parall\u00e8le avec conducteurs de phase.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3964\" data-end=\"4080\">\r\n<p data-start=\"3966\" data-end=\"4080\"><strong data-start=\"3966\" data-end=\"3982\">Cons\u00e9quence:<\/strong> Le courant de surtension ne peut pas \u00eatre d\u00e9charg\u00e9 en toute s\u00e9curit\u00e9, ce qui augmente les tensions de contact et met en danger les \u00e9quipements\/personnes.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4081\" data-end=\"4281\">\r\n<p data-start=\"4083\" data-end=\"4103\"><strong data-start=\"4083\" data-end=\"4101\">Bonne pratique\u00a0:<\/strong><\/p>\r\n\r\n<ul data-start=\"4106\" data-end=\"4281\">\r\n \t<li data-start=\"4106\" data-end=\"4157\">\r\n<p data-start=\"4108\" data-end=\"4157\">Assurer une r\u00e9sistance de terre \u226410 \u03a9 (IEC 60364).<\/p>\r\n<\/li>\r\n \t<li data-start=\"4160\" data-end=\"4204\">\r\n<p data-start=\"4162\" data-end=\"4204\">Dans les centres de donn\u00e9es\/h\u00f4pitaux, visez \u22641 \u03a9.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4207\" data-end=\"4281\">\r\n<p data-start=\"4209\" data-end=\"4281\">Connectez la borne de terre SPD directement \u00e0 la barre PE avec le conducteur le plus court.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"4283\" data-end=\"4317\"><strong data-start=\"4287\" data-end=\"4315\">5. Ignorer la coordination<\/strong><\/h3>\r\n<ul data-start=\"4318\" data-end=\"4707\">\r\n \t<li data-start=\"4318\" data-end=\"4436\">\r\n<p data-start=\"4320\" data-end=\"4436\"><strong data-start=\"4320\" data-end=\"4332\">Erreur:<\/strong> Installation uniquement de SPD de type 2 sans type 1 (pour la foudre directe) ni type 3 (pour les \u00e9quipements terminaux).<\/p>\r\n<\/li>\r\n \t<li data-start=\"4437\" data-end=\"4548\">\r\n<p data-start=\"4439\" data-end=\"4548\"><strong data-start=\"4439\" data-end=\"4455\">Cons\u00e9quence:<\/strong> Le type 2 \u00e0 lui seul ne peut pas absorber les courants de foudre \u00e0 haute \u00e9nergie ni prot\u00e9ger les appareils finaux d\u00e9licats.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4549\" data-end=\"4707\">\r\n<p data-start=\"4551\" data-end=\"4707\"><strong data-start=\"4551\" data-end=\"4569\">Bonne pratique\u00a0:<\/strong> Suivez le principe de cascade (Type 1 + Type 2 + Type 3), en garantissant une distance de coordination \u226510 m ou utilisez des inducteurs de d\u00e9couplage si &lt;10 m.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"4714\" data-end=\"4745\">Entretien et surveillance<\/h2>\r\n<p data-start=\"4747\" data-end=\"4838\">Un parasurtenseur ne consiste pas \u00e0 \u201c installer et oublier \u201d. Une surveillance continue garantit la fiabilit\u00e9.<\/p>\r\n\r\n<h3 data-start=\"4840\" data-end=\"4866\"><strong data-start=\"4844\" data-end=\"4864\">1. Contr\u00f4les visuels<\/strong><\/h3>\r\n<ul data-start=\"4867\" data-end=\"4999\">\r\n \t<li data-start=\"4867\" data-end=\"4945\">\r\n<p data-start=\"4869\" data-end=\"4945\">La plupart des SPD comportent une fen\u00eatre d'\u00e9tat (vert = op\u00e9rationnel, rouge = en \u00e9chec).<\/p>\r\n<\/li>\r\n \t<li data-start=\"4946\" data-end=\"4999\">\r\n<p data-start=\"4948\" data-end=\"4999\">Inspectez mensuellement ou apr\u00e8s des \u00e9v\u00e9nements de foudre connus.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"5001\" data-end=\"5043\"><strong data-start=\"5005\" data-end=\"5041\">2. Surveillance \u00e0 distance (BMS\/SCADA)<\/strong><\/h3>\r\n<ul data-start=\"5044\" data-end=\"5266\">\r\n \t<li data-start=\"5044\" data-end=\"5149\">\r\n<p data-start=\"5046\" data-end=\"5149\">Les SPD avec contacts de signalisation \u00e0 distance (NO\/NC) peuvent \u00eatre connect\u00e9s \u00e0 un syst\u00e8me de gestion technique du b\u00e2timent (BMS).<\/p>\r\n<\/li>\r\n \t<li data-start=\"5150\" data-end=\"5266\">\r\n<p data-start=\"5152\" data-end=\"5266\">Cela permet aux gestionnaires d'installations de recevoir des alarmes en cas de panne d'un SPD, m\u00eame si le panneau n'est pas physiquement inspect\u00e9.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"5268\" data-end=\"5295\"><strong data-start=\"5272\" data-end=\"5293\">3. Comptage des \u00e9v\u00e9nements<\/strong><\/h3>\r\n<ul data-start=\"5296\" data-end=\"5491\">\r\n \t<li data-start=\"5296\" data-end=\"5360\">\r\n<p data-start=\"5298\" data-end=\"5360\">Utilisez des compteurs de surtension comme BRSC-01 pour enregistrer chaque \u00e9v\u00e9nement de surtension.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5361\" data-end=\"5491\">\r\n<p data-start=\"5363\" data-end=\"5491\">Les enregistrements contribuent \u00e0 la maintenance pr\u00e9dictive\u00a0: si un SPD a trait\u00e9 plusieurs \u00e9v\u00e9nements \u00e0 haute \u00e9nergie, planifiez son remplacement avant la panne.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"5493\" data-end=\"5517\"><strong data-start=\"5497\" data-end=\"5515\">4. Remplacement<\/strong><\/h3>\r\n<ul data-start=\"5518\" data-end=\"5670\">\r\n \t<li data-start=\"5518\" data-end=\"5597\">\r\n<p data-start=\"5520\" data-end=\"5597\">Les SPD modulaires (comme nos s\u00e9ries SLP et BR) sont des conceptions enfichables\/enfichables.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5598\" data-end=\"5670\">\r\n<p data-start=\"5600\" data-end=\"5670\">Remplacez la cartouche sans rec\u00e2bler la base, ce qui minimise les temps d'arr\u00eat.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"5672\" data-end=\"5699\"><strong data-start=\"5676\" data-end=\"5697\">5. Tests annuels<\/strong><\/h3>\r\n<ul data-start=\"5700\" data-end=\"5904\">\r\n \t<li data-start=\"5700\" data-end=\"5758\">\r\n<p data-start=\"5702\" data-end=\"5758\">Effectuer un test de r\u00e9sistance d'isolement entre les conducteurs.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5759\" data-end=\"5834\">\r\n<p data-start=\"5761\" data-end=\"5834\">Mesurez la r\u00e9sistance de terre chaque ann\u00e9e (cible \u226410 \u03a9 ou selon le code local).<\/p>\r\n<\/li>\r\n \t<li data-start=\"5835\" data-end=\"5904\">\r\n<p data-start=\"5837\" data-end=\"5904\">Documenter les r\u00e9sultats des tests pour les audits de conformit\u00e9 et les enregistrements de garantie.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"8172\" data-end=\"8187\">Conclusion<\/h2>\r\n<p data-start=\"8188\" data-end=\"8449\">L'installation d'un parasurtenseur de type 2 n'est pas compliqu\u00e9e, mais elle doit \u00eatre effectu\u00e9e correctement. En suivant les r\u00e8gles d'installation appropri\u00e9es (c\u00e2blage court, taille de conducteur correcte, mise \u00e0 la terre fiable et protection de secours), vous garantissez que votre SPD fonctionne exactement comme pr\u00e9vu.<\/p>\r\n<p data-start=\"8451\" data-end=\"8610\">Un UPS \u00e0 lui seul ne suffit pas \u00e0 prot\u00e9ger les syst\u00e8mes sensibles. L'associer \u00e0 un SPD de type 2 correctement install\u00e9 offre la r\u00e9silience exig\u00e9e par les installations modernes.<\/p>\r\n<p data-start=\"8612\" data-end=\"8947\">Les SPD des s\u00e9ries SLP40-275\/3S+1 et BR-30FU de notre soci\u00e9t\u00e9 sont con\u00e7us pour une installation facile sur rail DIN, des fonctionnalit\u00e9s de s\u00e9curit\u00e9 int\u00e9gr\u00e9es et une conformit\u00e9 aux normes CEI 61643. Que vous prot\u00e9giez un panneau r\u00e9sidentiel, un bureau commercial ou un syst\u00e8me UPS industriel, ces solutions garantissent une fiabilit\u00e9 et une tranquillit\u00e9 d'esprit \u00e0 long terme.<\/p>","protected":false},"featured_media":2158,"parent":0,"menu_order":123,"template":"","meta":{"_acf_changed":false},"blog_category":[8],"class_list":["post-2171","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-company-news"],"acf":{"des":"This guide explains how to install a Type 2 surge protector step by step, with wiring diagrams, safety checks, and IEC-compliant best practices. It highlights common mistakes to avoid, maintenance tips, and integration with UPS systems, helping engineers ensure reliable surge protection for critical equipment.","txt":"<h2 data-start=\"333\" data-end=\"350\">Introduction<\/h2>\r\n<p data-start=\"351\" data-end=\"630\">Power surges are one of the most common causes of electrical equipment failure. While lightning strikes account for some surges, the majority are caused by switching operations, motors, or disturbances within the grid itself. That\u2019s where a Type 2 surge protector comes in.<\/p>\r\n<p data-start=\"632\" data-end=\"883\">Type 2 SPDs (Surge Protective Devices) are installed in the main distribution board or upstream of UPS systems. Their job is to clamp down on transient overvoltages and safely divert surge currents to ground, keeping your sensitive devices safe.<\/p>\r\n<p data-start=\"885\" data-end=\"1235\">In this guide, we\u2019ll break down how to install a Type 2 surge protector step by step. You\u2019ll learn the tools you need, safety checks, wiring diagrams, and testing methods. And we\u2019ll go deeper than most beginner blogs\u2014referencing IEC 61643 standards, wiring best practices, and practical engineering tips that will save you from costly mistakes.<\/p>\r\n\r\n<h2 data-start=\"1242\" data-end=\"1280\">What is a Type 2 Surge Protector?<\/h2>\r\n<p data-start=\"1281\" data-end=\"1394\">A <a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"1283\" data-end=\"1297\">Type 2 SPD<\/strong> <\/a>is designed to handle surge currents from indirect lightning strikes and switching operations.<\/p>\r\n\r\n<ul data-start=\"1396\" data-end=\"1718\">\r\n \t<li data-start=\"1396\" data-end=\"1520\">\r\n<p data-start=\"1398\" data-end=\"1520\">Where it goes: Installed in the main distribution board (consumer unit) or on the input side of UPS systems.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1521\" data-end=\"1621\">\r\n<p data-start=\"1523\" data-end=\"1621\">What it protects against: Induced lightning surges, switching transients, grid disturbances.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1622\" data-end=\"1718\">\r\n<p data-start=\"1624\" data-end=\"1718\">How it works: By clamping the surge voltage (Up) and diverting energy to the earth (PE).<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"1720\" data-end=\"1762\"><strong data-start=\"1720\" data-end=\"1760\">Key parameters defined by IEC 61643:<\/strong><\/p>\r\n\r\n<ul data-start=\"1763\" data-end=\"2155\">\r\n \t<li data-start=\"1763\" data-end=\"1866\">\r\n<p data-start=\"1765\" data-end=\"1866\">Uc (Max Continuous Operating Voltage): The maximum RMS voltage the SPD can handle continuously.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1867\" data-end=\"1960\">\r\n<p data-start=\"1869\" data-end=\"1960\">Up (Voltage Protection Level): The clamping level that remains on the protected side.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1961\" data-end=\"2067\">\r\n<p data-start=\"1963\" data-end=\"2067\">In (Nominal Discharge Current): Surge current the SPD can withstand repeatedly (8\/20 \u03bcs waveform).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2068\" data-end=\"2155\">\r\n<p data-start=\"2070\" data-end=\"2155\">Imax (Maximum Discharge Current): The largest single surge the SPD can survive.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2157\" data-end=\"2228\">For example, our company\u2019s <a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"2184\" data-end=\"2213\">SLP40-275\/3S+1 Type 2 SPD<\/strong><\/a> is rated at:<\/p>\r\n\r\n<ul data-start=\"2229\" data-end=\"2294\">\r\n \t<li data-start=\"2229\" data-end=\"2246\">\r\n<p data-start=\"2231\" data-end=\"2246\">Uc = 275 V AC<\/p>\r\n<\/li>\r\n \t<li data-start=\"2247\" data-end=\"2261\">\r\n<p data-start=\"2249\" data-end=\"2261\">In = 20 kA<\/p>\r\n<\/li>\r\n \t<li data-start=\"2262\" data-end=\"2278\">\r\n<p data-start=\"2264\" data-end=\"2278\">Imax = 40 kA<\/p>\r\n<\/li>\r\n \t<li data-start=\"2279\" data-end=\"2294\">\r\n<p data-start=\"2281\" data-end=\"2294\">Up \u2264 1.5 kV<\/p>\r\n<\/li>\r\n<\/ul>\r\n<p data-start=\"2296\" data-end=\"2409\">This makes it ideal for residential, commercial, and industrial distribution boards, as well as UPS protection.<\/p>\r\n\r\n<h2 data-start=\"2416\" data-end=\"2459\">Safety Precautions Before Installation<\/h2>\r\n<p data-start=\"2460\" data-end=\"2553\">Installing an SPD means working inside a live distribution panel. Safety is non-negotiable.<\/p>\r\n\r\n<ol data-start=\"2555\" data-end=\"2997\">\r\n \t<li data-start=\"2555\" data-end=\"2616\">\r\n<p data-start=\"2558\" data-end=\"2616\">Disconnect the power completely at the main breaker.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2617\" data-end=\"2684\">\r\n<p data-start=\"2620\" data-end=\"2684\">Verify with a tester that all conductors are de-energized.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2685\" data-end=\"2790\">\r\n<p data-start=\"2688\" data-end=\"2790\">Apply Lockout\/Tagout (LOTO): Use lockout devices and tags to prevent accidental re-energization.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2791\" data-end=\"2861\">\r\n<p data-start=\"2794\" data-end=\"2861\">Wear PPE: Insulated gloves, protective glasses, safety shoes.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2862\" data-end=\"2997\">\r\n<p data-start=\"2865\" data-end=\"2997\">Check the earthing system: Ensure your PE bar is properly bonded and resistance meets standards (\u226410 \u03a9 in most jurisdictions).<\/p>\r\n<\/li>\r\n<\/ol>\r\n<p data-start=\"2999\" data-end=\"3173\"><strong data-start=\"3002\" data-end=\"3016\">Important:<\/strong> Local regulations (IEC 60364, BS 7671, NEC, or your national code) may require installation by a licensed electrician. Always comply with local standards.<\/p>\r\n<p data-start=\"2999\" data-end=\"3173\"><a href=\"https:\/\/www.britecelectric.com\/attachment\/br-20-4p-1type-2-surge-protection-device-jpg\/\" rel=\"attachment wp-att-2160\"><img class=\"alignnone wp-image-2160\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/BR-20-4P-1Type-2-Surge-Protection-Device.jpg.webp\" alt=\"\" width=\"872\" \/><\/a><\/p>\r\n\r\n<h2 data-start=\"3180\" data-end=\"3218\">Tools and Materials You Will Need<\/h2>\r\n<ul data-start=\"3219\" data-end=\"3600\">\r\n \t<li data-start=\"3219\" data-end=\"3266\">\r\n<p data-start=\"3221\" data-end=\"3266\">Type 2 SPD module (e.g. SLP40-275\/3S+1)<\/p>\r\n<\/li>\r\n \t<li data-start=\"3267\" data-end=\"3311\">\r\n<p data-start=\"3269\" data-end=\"3311\">DIN rail mounting space inside the panel<\/p>\r\n<\/li>\r\n \t<li data-start=\"3312\" data-end=\"3381\">\r\n<p data-start=\"3314\" data-end=\"3381\">Copper conductor: \u22656 mm\u00b2 for Type 2 SPDs (IEC recommendation)<\/p>\r\n<\/li>\r\n \t<li data-start=\"3382\" data-end=\"3431\">\r\n<p data-start=\"3384\" data-end=\"3431\">Proper torque screwdriver or insulated wrench<\/p>\r\n<\/li>\r\n \t<li data-start=\"3432\" data-end=\"3541\">\r\n<p data-start=\"3434\" data-end=\"3541\">Backup protection device: MCB\/fuse, or choose SPD with built-in backup fuse (e.g. BR-30FU series)<\/p>\r\n<\/li>\r\n \t<li data-start=\"3542\" data-end=\"3576\">\r\n<p data-start=\"3544\" data-end=\"3576\">Insulation tester &amp; multimeter<\/p>\r\n<\/li>\r\n \t<li data-start=\"3577\" data-end=\"3600\">\r\n<p data-start=\"3579\" data-end=\"3600\">Earth bonding strap<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2>Step-by-Step Installation Guide for <a href=\"https:\/\/www.britecelectric.com\/product-category\/ac-power-surge-protection\/type-2-surge-protective-device\/\" target=\"_blank\" rel=\"noopener\">Type 2 SPD<\/a><\/h2>\r\n&nbsp;\r\n\r\n<a href=\"https:\/\/www.britecelectric.com\/attachment\/type-2-spd-install\/\" rel=\"attachment wp-att-2158\"><img class=\"alignnone size-full wp-image-2158\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/Type-2-SPD-install.jpg\" alt=\"\" width=\"732\" \/><\/a>\r\n<h3 data-start=\"477\" data-end=\"537\"><strong data-start=\"481\" data-end=\"535\">Step 1 \u2013 Plan and Select the Installation Location<\/strong><\/h3>\r\n<ul data-start=\"538\" data-end=\"1226\">\r\n \t<li data-start=\"538\" data-end=\"782\">\r\n<p data-start=\"540\" data-end=\"782\"><strong data-start=\"540\" data-end=\"550\">Where:<\/strong> Type 2 SPD must be installed in the main distribution board or on the input side of the UPS system. This location allows it to intercept switching surges and induced lightning transients before they reach sensitive loads.<\/p>\r\n<\/li>\r\n \t<li data-start=\"783\" data-end=\"894\">\r\n<p data-start=\"785\" data-end=\"894\"><strong data-start=\"785\" data-end=\"793\">Why:<\/strong> Installing the SPD too far downstream increases the residual surge voltage (Up) seen by equipment.<\/p>\r\n<\/li>\r\n \t<li data-start=\"895\" data-end=\"1226\">\r\n<p data-start=\"897\" data-end=\"917\"><strong data-start=\"897\" data-end=\"915\">Best Practice:<\/strong><\/p>\r\n\r\n<ul data-start=\"920\" data-end=\"1226\">\r\n \t<li data-start=\"920\" data-end=\"994\">\r\n<p data-start=\"922\" data-end=\"994\">Keep the total conductor length (phase \u2192 SPD \u2192 earth) \u2264 0.5 m.<\/p>\r\n<\/li>\r\n \t<li data-start=\"997\" data-end=\"1066\">\r\n<p data-start=\"999\" data-end=\"1066\">Place SPD modules as close as possible to the busbars (L, N, PE).<\/p>\r\n<\/li>\r\n \t<li data-start=\"1069\" data-end=\"1226\">\r\n<p data-start=\"1071\" data-end=\"1226\">If the distance between upstream Type 1 and this Type 2 SPD is &lt;10 m, add a decoupling inductor <strong data-start=\"1147\" data-end=\"1186\">(per <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/1865\" target=\"_blank\" rel=\"noopener\">IEC 60364<\/a>)<\/strong> to ensure proper energy coordination.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1233\" data-end=\"1295\"><strong data-start=\"1237\" data-end=\"1293\">Step 2 \u2013 Prepare the Distribution Board and DIN Rail<\/strong><\/h3>\r\n<ul data-start=\"1296\" data-end=\"1792\">\r\n \t<li data-start=\"1296\" data-end=\"1445\">\r\n<p data-start=\"1298\" data-end=\"1445\">Ensure the distribution board is fully de-energized. Verify with a multimeter or voltage detector on all incoming phases and neutral.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1446\" data-end=\"1529\">\r\n<p data-start=\"1448\" data-end=\"1529\">Check that the DIN rail is securely fastened, clean, and free of corrosion.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1530\" data-end=\"1617\">\r\n<p data-start=\"1532\" data-end=\"1617\">Leave adequate space around the SPD for ventilation and future maintenance.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1618\" data-end=\"1792\">\r\n<p data-start=\"1620\" data-end=\"1792\">Tip from field practice: Always mount modular SPDs vertically when possible. This supports natural heat dissipation and makes the indicator windows easier to inspect.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1799\" data-end=\"1851\"><strong data-start=\"1803\" data-end=\"1849\">Step 3 \u2013 Connect the Conductors (L, N, PE)<\/strong><\/h3>\r\n<p data-start=\"1852\" data-end=\"1944\">Proper wiring is critical, as poor connections can completely compromise surge protection.<\/p>\r\n\r\n<ul data-start=\"1946\" data-end=\"2853\">\r\n \t<li data-start=\"1946\" data-end=\"2093\">\r\n<p data-start=\"1948\" data-end=\"1969\"><strong data-start=\"1948\" data-end=\"1967\">Conductor Size:<\/strong><\/p>\r\n\r\n<ul data-start=\"1972\" data-end=\"2093\">\r\n \t<li data-start=\"1972\" data-end=\"2032\">\r\n<p data-start=\"1974\" data-end=\"2032\">Type 2 SPD (residential\/commercial): \u2265 6 mm\u00b2 copper.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2035\" data-end=\"2093\">\r\n<p data-start=\"2037\" data-end=\"2093\">Type 1 SPD (at service entrance): \u2265 16 mm\u00b2 copper.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"2094\" data-end=\"2359\">\r\n<p data-start=\"2096\" data-end=\"2119\"><strong data-start=\"2096\" data-end=\"2117\">Connection Order:<\/strong><\/p>\r\n\r\n<ul data-start=\"2122\" data-end=\"2359\">\r\n \t<li data-start=\"2122\" data-end=\"2195\">\r\n<p data-start=\"2124\" data-end=\"2195\">Connect phase conductors (L1, L2, L3) to the SPD input terminals.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2198\" data-end=\"2266\">\r\n<p data-start=\"2200\" data-end=\"2266\">Connect neutral (N) if required by the SPD type (4P or 3+1).<\/p>\r\n<\/li>\r\n \t<li data-start=\"2269\" data-end=\"2359\">\r\n<p data-start=\"2271\" data-end=\"2359\">Connect earth (PE) directly to the earth bar with the shortest possible conductor.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"2360\" data-end=\"2519\">\r\n<p data-start=\"2362\" data-end=\"2519\"><strong data-start=\"2362\" data-end=\"2373\">Torque:<\/strong> Tighten terminals according to manufacturer datasheet (typically 2.5\u20133.5 Nm for 6 mm\u00b2 Cu). Loose terminals create heating and arcing risks.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2520\" data-end=\"2706\">\r\n<p data-start=\"2522\" data-end=\"2706\"><strong data-start=\"2522\" data-end=\"2549\">Why short leads matter:<\/strong> Every 10 cm of wire length adds approximately 1 kV of residual surge voltage. That means long or coiled leads can raise Up beyond equipment tolerance.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2707\" data-end=\"2853\">\r\n<p data-start=\"2709\" data-end=\"2853\"><strong data-start=\"2709\" data-end=\"2728\">Common mistake:<\/strong> Running the PE wire parallel to phase wires over long distances. This increases inductive coupling and weakens protection.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"2860\" data-end=\"2914\"><strong data-start=\"2864\" data-end=\"2912\">Step 4 \u2013 Add Backup Protection (Fuse or MCB)<\/strong><\/h3>\r\n<ul data-start=\"2915\" data-end=\"3599\">\r\n \t<li data-start=\"2915\" data-end=\"3148\">\r\n<p data-start=\"2917\" data-end=\"3148\"><strong data-start=\"2917\" data-end=\"2932\">Why needed:<\/strong> An SPD is connected in parallel to the system. If it fails due to severe surge exposure, it may short-circuit. A dedicated backup protective device ensures safe disconnection without tripping the main breaker.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3149\" data-end=\"3454\">\r\n<p data-start=\"3151\" data-end=\"3165\"><strong data-start=\"3151\" data-end=\"3163\">Options:<\/strong><\/p>\r\n\r\n<ul data-start=\"3168\" data-end=\"3454\">\r\n \t<li data-start=\"3168\" data-end=\"3294\">\r\n<p data-start=\"3170\" data-end=\"3294\">Standard SPD: Connect via MCB (20\u201332 A typical for residential) or fuse, rated according to the SPD\u2019s In and Imax.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3297\" data-end=\"3454\">\r\n<p data-start=\"3299\" data-end=\"3454\">Integrated solution: Use SPDs with built-in backup fuses (e.g., our BR-30FU series), which eliminates the need for an external protective device.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"3455\" data-end=\"3599\">\r\n<p data-start=\"3457\" data-end=\"3599\">Standards: IEC 61643 and BS 7671 both recommend selective coordination between SPD and upstream breakers to avoid nuisance tripping.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"3606\" data-end=\"3659\"><strong data-start=\"3610\" data-end=\"3657\">Step 5 \u2013 Ensure Proper Earthing and Bonding<\/strong><\/h3>\r\n<ul data-start=\"3660\" data-end=\"4261\">\r\n \t<li data-start=\"3660\" data-end=\"3799\">\r\n<p data-start=\"3662\" data-end=\"3799\"><strong data-start=\"3662\" data-end=\"3687\">Direct Path to Earth:<\/strong> The SPD\u2019s earth terminal must be bonded directly to the PE bar. Do not daisy-chain through other devices.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3800\" data-end=\"3957\">\r\n<p data-start=\"3802\" data-end=\"3957\"><strong data-start=\"3802\" data-end=\"3823\">Earth Resistance:<\/strong> According to IEC 60364, grounding resistance should generally be \u226410 \u03a9, with \u22641 \u03a9 preferred in data centers and telecom facilities.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3958\" data-end=\"4128\">\r\n<p data-start=\"3960\" data-end=\"4128\"><strong data-start=\"3960\" data-end=\"3986\">Equipotential Bonding:<\/strong> Make sure all metal enclosures and cable shields are bonded at the same potential to prevent dangerous potential differences during surges.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4129\" data-end=\"4261\">\r\n<p data-start=\"4131\" data-end=\"4261\"><strong data-start=\"4131\" data-end=\"4139\">Tip:<\/strong> Use flat conductors or braided copper when possible for PE, as they have lower inductance compared to round conductors.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"4268\" data-end=\"4312\"><strong data-start=\"4272\" data-end=\"4310\">Step 6 \u2013 Commissioning and Testing<\/strong><\/h3>\r\n<p data-start=\"4313\" data-end=\"4383\">Before re-energizing the system, verify the installation thoroughly:<\/p>\r\n\r\n<ol data-start=\"4385\" data-end=\"5166\">\r\n \t<li data-start=\"4385\" data-end=\"4561\">\r\n<p data-start=\"4388\" data-end=\"4412\"><strong data-start=\"4388\" data-end=\"4410\">Visual Inspection:<\/strong><\/p>\r\n\r\n<ul data-start=\"4416\" data-end=\"4561\">\r\n \t<li data-start=\"4416\" data-end=\"4465\">\r\n<p data-start=\"4418\" data-end=\"4465\">Confirm all connections are correct (L\/N\/PE).<\/p>\r\n<\/li>\r\n \t<li data-start=\"4469\" data-end=\"4523\">\r\n<p data-start=\"4471\" data-end=\"4523\">Verify conductor lengths are as short as possible.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4527\" data-end=\"4561\">\r\n<p data-start=\"4529\" data-end=\"4561\">Check torque on each terminal.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"4562\" data-end=\"4682\">\r\n<p data-start=\"4565\" data-end=\"4587\"><strong data-start=\"4565\" data-end=\"4585\">Insulation Test:<\/strong><\/p>\r\n\r\n<ul data-start=\"4591\" data-end=\"4682\">\r\n \t<li data-start=\"4591\" data-end=\"4682\">\r\n<p data-start=\"4593\" data-end=\"4682\">Perform insulation resistance tests between L\u2013N, L\u2013PE, N\u2013PE to ensure wiring integrity.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"4683\" data-end=\"4869\">\r\n<p data-start=\"4686\" data-end=\"4707\"><strong data-start=\"4686\" data-end=\"4705\">Power-Up Check:<\/strong><\/p>\r\n\r\n<ul data-start=\"4711\" data-end=\"4869\">\r\n \t<li data-start=\"4711\" data-end=\"4869\">\r\n<p data-start=\"4713\" data-end=\"4786\">Switch on power and observe the status indicator window on the SPD:<\/p>\r\n\r\n<ul data-start=\"4792\" data-end=\"4869\">\r\n \t<li data-start=\"4792\" data-end=\"4815\">\r\n<p data-start=\"4794\" data-end=\"4815\">Green = operational<\/p>\r\n<\/li>\r\n \t<li data-start=\"4821\" data-end=\"4869\">\r\n<p data-start=\"4823\" data-end=\"4869\">Red = module has failed and must be replaced<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"4870\" data-end=\"5003\">\r\n<p data-start=\"4873\" data-end=\"4916\"><strong data-start=\"4873\" data-end=\"4914\">Remote Signaling Test (if available):<\/strong><\/p>\r\n\r\n<ul data-start=\"4920\" data-end=\"5003\">\r\n \t<li data-start=\"4920\" data-end=\"5003\">\r\n<p data-start=\"4922\" data-end=\"5003\">For SPDs with remote contacts, verify alarm integration with BMS\/SCADA systems.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"5004\" data-end=\"5166\">\r\n<p data-start=\"5007\" data-end=\"5027\"><strong data-start=\"5007\" data-end=\"5025\">Documentation:<\/strong><\/p>\r\n\r\n<ul data-start=\"5031\" data-end=\"5166\">\r\n \t<li data-start=\"5031\" data-end=\"5166\">\r\n<p data-start=\"5033\" data-end=\"5166\">Record SPD type, model number, rated parameters (Uc, In, Imax, Up), installation date, and circuit location for future maintenance.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ol>\r\n<p data-start=\"5173\" data-end=\"5607\"><strong data-start=\"5175\" data-end=\"5222\">Featured Snippet Candidate (Summary Style):<\/strong><br data-start=\"5222\" data-end=\"5225\" \/><em data-start=\"5225\" data-end=\"5605\">To install a Type 2 surge protector, disconnect power and mount it on the DIN rail inside the distribution board. Connect L\/N\/PE conductors using \u22656 mm\u00b2 copper with \u22640.5 m total length, add a backup fuse or MCB, and ensure direct earthing to the PE bar. After tightening to the correct torque, perform insulation tests, check the status indicator, and document the installation.<\/em><\/p>\r\n<img class=\"alignnone size-medium wp-image-2236\" src=\"https:\/\/www.britecelectric.com\/wp-content\/uploads\/2025\/08\/How-to-Install-Type-2-Surge-Protector.jpg\" alt=\"How to Install Type 2 Surge Protector\" width=\"1000\" \/>\r\n\r\n&nbsp;\r\n<h2 data-start=\"321\" data-end=\"356\">Wiring Diagrams for Type 2 SPD<\/h2>\r\n<h3 data-start=\"358\" data-end=\"404\"><strong data-start=\"362\" data-end=\"402\">Single-Phase System (230 V, TN-S\/TT)<\/strong><\/h3>\r\n<ul data-start=\"405\" data-end=\"1033\">\r\n \t<li data-start=\"405\" data-end=\"634\">\r\n<p data-start=\"407\" data-end=\"427\"><strong data-start=\"407\" data-end=\"425\">Configuration:<\/strong><\/p>\r\n\r\n<ul data-start=\"430\" data-end=\"634\">\r\n \t<li data-start=\"430\" data-end=\"496\">\r\n<p data-start=\"432\" data-end=\"496\">Connect the SPD between L and N, and between N and PE.<\/p>\r\n<\/li>\r\n \t<li data-start=\"499\" data-end=\"634\">\r\n<p data-start=\"501\" data-end=\"634\">For TT systems, ensure the N-PE protection path uses a spark gap or a MOV+GDT combination to avoid continuous leakage currents.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"635\" data-end=\"851\">\r\n<p data-start=\"637\" data-end=\"661\"><strong data-start=\"637\" data-end=\"659\">Backup Protection:<\/strong><\/p>\r\n\r\n<ul data-start=\"664\" data-end=\"851\">\r\n \t<li data-start=\"664\" data-end=\"768\">\r\n<p data-start=\"666\" data-end=\"768\">A dedicated fuse or MCB must be installed on the phase conductor (L) feeding the SPD branch.<\/p>\r\n<\/li>\r\n \t<li data-start=\"771\" data-end=\"851\">\r\n<p data-start=\"773\" data-end=\"851\">Typical residential setup: 20\u201332 A MCB rated according to SPD\u2019s In\/Imax.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"852\" data-end=\"1033\">\r\n<p data-start=\"854\" data-end=\"1033\"><strong data-start=\"854\" data-end=\"873\">Why it matters:<\/strong> Without proper backup protection, an SPD failure may cause a permanent short circuit, tripping the main breaker and cutting power to the entire installation.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1040\" data-end=\"1082\"><strong data-start=\"1044\" data-end=\"1080\">Three-Phase System (400 V, TN-S)<\/strong><\/h3>\r\n<ul data-start=\"1083\" data-end=\"1836\">\r\n \t<li data-start=\"1083\" data-end=\"1297\">\r\n<p data-start=\"1085\" data-end=\"1105\"><strong data-start=\"1085\" data-end=\"1103\">Configuration:<\/strong><\/p>\r\n\r\n<ul data-start=\"1108\" data-end=\"1297\">\r\n \t<li data-start=\"1108\" data-end=\"1163\">\r\n<p data-start=\"1110\" data-end=\"1163\">SPD connected across L1-PE, L2-PE, L3-PE, N-PE.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1166\" data-end=\"1297\">\r\n<p data-start=\"1168\" data-end=\"1297\">Recommended 3+1 configuration: MOVs across each phase to neutral (L1-N, L2-N, L3-N), plus a spark gap between N and PE.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"1298\" data-end=\"1492\">\r\n<p data-start=\"1300\" data-end=\"1338\"><strong data-start=\"1300\" data-end=\"1336\">Advantages of 3+1 configuration:<\/strong><\/p>\r\n\r\n<ul data-start=\"1341\" data-end=\"1492\">\r\n \t<li data-start=\"1341\" data-end=\"1396\">\r\n<p data-start=\"1343\" data-end=\"1396\">Reduces residual voltage between neutral and earth.<\/p>\r\n<\/li>\r\n \t<li data-start=\"1399\" data-end=\"1492\">\r\n<p data-start=\"1401\" data-end=\"1492\">Provides better coordination in TT and TN-S systems where neutral displacement can occur.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"1493\" data-end=\"1620\">\r\n<p data-start=\"1495\" data-end=\"1519\"><strong data-start=\"1495\" data-end=\"1517\">Backup Protection:<\/strong><\/p>\r\n\r\n<ul data-start=\"1522\" data-end=\"1620\">\r\n \t<li data-start=\"1522\" data-end=\"1620\">\r\n<p data-start=\"1524\" data-end=\"1620\">Typically, 32\u201363 A MCBs are required for each SPD branch in industrial\/commercial systems.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"1621\" data-end=\"1836\">\r\n<p data-start=\"1623\" data-end=\"1836\"><strong data-start=\"1623\" data-end=\"1644\">Professional tip:<\/strong> When protecting three-phase UPS or motor loads, always verify short-circuit current rating (Isc) of the SPD matches the fault level at the distribution point (IEC 61643-11 requirement).<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"1843\" data-end=\"1899\"><strong data-start=\"1847\" data-end=\"1897\">UPS Integration (Uninterruptible Power Supply)<\/strong><\/h3>\r\n<ul data-start=\"1900\" data-end=\"2715\">\r\n \t<li data-start=\"1900\" data-end=\"2067\">\r\n<p data-start=\"1902\" data-end=\"2067\"><strong data-start=\"1902\" data-end=\"1916\">Placement:<\/strong> Install the Type 2 SPD upstream of the UPS rectifier. This ensures surges from the utility grid are clamped before reaching the UPS electronics.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2068\" data-end=\"2341\">\r\n<p data-start=\"2070\" data-end=\"2105\"><strong data-start=\"2070\" data-end=\"2103\">Why upstream, not downstream:<\/strong><\/p>\r\n\r\n<ul data-start=\"2108\" data-end=\"2341\">\r\n \t<li data-start=\"2108\" data-end=\"2238\">\r\n<p data-start=\"2110\" data-end=\"2238\">Downstream installation may cause nuisance tripping, since UPS inverters can generate harmonics and fast switching transients.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2241\" data-end=\"2341\">\r\n<p data-start=\"2243\" data-end=\"2341\">Upstream placement protects rectifiers, DC capacitors, and inverter modules, extending UPS life.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"2342\" data-end=\"2544\">\r\n<p data-start=\"2344\" data-end=\"2376\"><strong data-start=\"2344\" data-end=\"2374\">Example with our products:<\/strong><\/p>\r\n\r\n<ul data-start=\"2379\" data-end=\"2544\">\r\n \t<li data-start=\"2379\" data-end=\"2544\">\r\n<p data-start=\"2381\" data-end=\"2544\">SLP40-275\/3S+1 upstream of a double-conversion UPS ensures surge currents up to 40 kA are safely diverted, preventing stress on inverter IGBTs and batteries.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li data-start=\"2545\" data-end=\"2715\">\r\n<p data-start=\"2547\" data-end=\"2715\"><strong data-start=\"2547\" data-end=\"2568\">Engineering note:<\/strong> In critical IT or healthcare facilities, consider combining Type 1 + Type 2 cascade at UPS input for lightning + switching surge protection.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"2722\" data-end=\"2751\">Common Mistakes to Avoid<\/h2>\r\n<h3 data-start=\"2753\" data-end=\"2781\"><strong data-start=\"2757\" data-end=\"2779\">1. Wiring Too Long<\/strong><\/h3>\r\n<ul data-start=\"2782\" data-end=\"3103\">\r\n \t<li data-start=\"2782\" data-end=\"2848\">\r\n<p data-start=\"2784\" data-end=\"2848\"><strong data-start=\"2784\" data-end=\"2796\">Mistake:<\/strong> SPD connected with &gt;0.5 m total conductor length.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2849\" data-end=\"2990\">\r\n<p data-start=\"2851\" data-end=\"2990\"><strong data-start=\"2851\" data-end=\"2865\">Why wrong:<\/strong> Each 10 cm adds ~1 kV to the residual voltage (Up). Sensitive electronics (rated 1.5 kV withstand) may still be destroyed.<\/p>\r\n<\/li>\r\n \t<li data-start=\"2991\" data-end=\"3103\">\r\n<p data-start=\"2993\" data-end=\"3103\"><strong data-start=\"2993\" data-end=\"3011\">Best practice:<\/strong> Keep SPD as close as possible to busbars; use straight runs, avoid loops and sharp bends.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"3105\" data-end=\"3138\"><strong data-start=\"3109\" data-end=\"3136\">2. Wrong Conductor Size<\/strong><\/h3>\r\n<ul data-start=\"3139\" data-end=\"3454\">\r\n \t<li data-start=\"3139\" data-end=\"3194\">\r\n<p data-start=\"3141\" data-end=\"3194\"><strong data-start=\"3141\" data-end=\"3153\">Mistake:<\/strong> Using wires &lt;6 mm\u00b2 Cu for Type 2 SPDs.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3195\" data-end=\"3284\">\r\n<p data-start=\"3197\" data-end=\"3284\"><strong data-start=\"3197\" data-end=\"3213\">Consequence:<\/strong> Excessive heating, risk of insulation breakdown during large surges.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3285\" data-end=\"3454\">\r\n<p data-start=\"3287\" data-end=\"3307\"><strong data-start=\"3287\" data-end=\"3305\">Best practice:<\/strong><\/p>\r\n\r\n<ul data-start=\"3310\" data-end=\"3454\">\r\n \t<li data-start=\"3310\" data-end=\"3349\">\r\n<p data-start=\"3312\" data-end=\"3349\">Type 2 SPD \u2192 \u22656 mm\u00b2 Cu (IEC 60364).<\/p>\r\n<\/li>\r\n \t<li data-start=\"3352\" data-end=\"3380\">\r\n<p data-start=\"3354\" data-end=\"3380\">Type 1 SPD \u2192 \u226516 mm\u00b2 Cu.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3383\" data-end=\"3454\">\r\n<p data-start=\"3385\" data-end=\"3454\">Use low-inductance conductors (braided or flat copper if possible).<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"3456\" data-end=\"3489\"><strong data-start=\"3460\" data-end=\"3487\">3. No Backup Protection<\/strong><\/h3>\r\n<ul data-start=\"3490\" data-end=\"3839\">\r\n \t<li data-start=\"3490\" data-end=\"3548\">\r\n<p data-start=\"3492\" data-end=\"3548\"><strong data-start=\"3492\" data-end=\"3504\">Mistake:<\/strong> Directly connecting SPD without MCB\/fuse.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3549\" data-end=\"3669\">\r\n<p data-start=\"3551\" data-end=\"3669\"><strong data-start=\"3551\" data-end=\"3567\">Consequence:<\/strong> If SPD fails in short-circuit mode, it can trip the main breaker, shutting down the whole facility.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3670\" data-end=\"3839\">\r\n<p data-start=\"3672\" data-end=\"3692\"><strong data-start=\"3672\" data-end=\"3690\">Best practice:<\/strong><\/p>\r\n\r\n<ul data-start=\"3695\" data-end=\"3839\">\r\n \t<li data-start=\"3695\" data-end=\"3739\">\r\n<p data-start=\"3697\" data-end=\"3739\">Always install a dedicated breaker\/fuse.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3742\" data-end=\"3839\">\r\n<p data-start=\"3744\" data-end=\"3839\">Use SPD models with built-in fuses (e.g. our BR-30FU series) for simplified installation.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"3841\" data-end=\"3867\"><strong data-start=\"3845\" data-end=\"3865\">4. Poor Earthing<\/strong><\/h3>\r\n<ul data-start=\"3868\" data-end=\"4281\">\r\n \t<li data-start=\"3868\" data-end=\"3963\">\r\n<p data-start=\"3870\" data-end=\"3963\"><strong data-start=\"3870\" data-end=\"3882\">Mistake:<\/strong> High resistance ground (&gt;30 \u03a9) or long parallel routing with phase conductors.<\/p>\r\n<\/li>\r\n \t<li data-start=\"3964\" data-end=\"4080\">\r\n<p data-start=\"3966\" data-end=\"4080\"><strong data-start=\"3966\" data-end=\"3982\">Consequence:<\/strong> Surge current cannot be safely discharged, raising touch voltages and risking equipment\/people.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4081\" data-end=\"4281\">\r\n<p data-start=\"4083\" data-end=\"4103\"><strong data-start=\"4083\" data-end=\"4101\">Best practice:<\/strong><\/p>\r\n\r\n<ul data-start=\"4106\" data-end=\"4281\">\r\n \t<li data-start=\"4106\" data-end=\"4157\">\r\n<p data-start=\"4108\" data-end=\"4157\">Ensure ground resistance \u226410 \u03a9 (IEC 60364).<\/p>\r\n<\/li>\r\n \t<li data-start=\"4160\" data-end=\"4204\">\r\n<p data-start=\"4162\" data-end=\"4204\">In data centers\/hospitals, aim for \u22641 \u03a9.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4207\" data-end=\"4281\">\r\n<p data-start=\"4209\" data-end=\"4281\">Connect SPD earth terminal directly to PE bar with shortest conductor.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"4283\" data-end=\"4317\"><strong data-start=\"4287\" data-end=\"4315\">5. Ignoring Coordination<\/strong><\/h3>\r\n<ul data-start=\"4318\" data-end=\"4707\">\r\n \t<li data-start=\"4318\" data-end=\"4436\">\r\n<p data-start=\"4320\" data-end=\"4436\"><strong data-start=\"4320\" data-end=\"4332\">Mistake:<\/strong> Installing only Type 2 SPDs without Type 1 (for direct lightning) or Type 3 (for terminal equipment).<\/p>\r\n<\/li>\r\n \t<li data-start=\"4437\" data-end=\"4548\">\r\n<p data-start=\"4439\" data-end=\"4548\"><strong data-start=\"4439\" data-end=\"4455\">Consequence:<\/strong> Type 2 alone cannot absorb high-energy lightning currents or protect delicate end devices.<\/p>\r\n<\/li>\r\n \t<li data-start=\"4549\" data-end=\"4707\">\r\n<p data-start=\"4551\" data-end=\"4707\"><strong data-start=\"4551\" data-end=\"4569\">Best practice:<\/strong> Follow the cascade principle (Type 1 + Type 2 + Type 3), ensuring coordination distance \u226510 m or use decoupling inductors if &lt;10 m.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"4714\" data-end=\"4745\">Maintenance and Monitoring<\/h2>\r\n<p data-start=\"4747\" data-end=\"4838\">A surge protector is not \u201cinstall and forget.\u201d Continuous monitoring ensures reliability.<\/p>\r\n\r\n<h3 data-start=\"4840\" data-end=\"4866\"><strong data-start=\"4844\" data-end=\"4864\">1. Visual Checks<\/strong><\/h3>\r\n<ul data-start=\"4867\" data-end=\"4999\">\r\n \t<li data-start=\"4867\" data-end=\"4945\">\r\n<p data-start=\"4869\" data-end=\"4945\">Most SPDs feature a status window (green = operational, red = failed).<\/p>\r\n<\/li>\r\n \t<li data-start=\"4946\" data-end=\"4999\">\r\n<p data-start=\"4948\" data-end=\"4999\">Inspect monthly, or after known lightning events.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"5001\" data-end=\"5043\"><strong data-start=\"5005\" data-end=\"5041\">2. Remote Monitoring (BMS\/SCADA)<\/strong><\/h3>\r\n<ul data-start=\"5044\" data-end=\"5266\">\r\n \t<li data-start=\"5044\" data-end=\"5149\">\r\n<p data-start=\"5046\" data-end=\"5149\">SPDs with remote signaling contacts (NO\/NC) can be wired into a building management system (BMS).<\/p>\r\n<\/li>\r\n \t<li data-start=\"5150\" data-end=\"5266\">\r\n<p data-start=\"5152\" data-end=\"5266\">This allows facility managers to get alarms if an SPD has failed, even if the panel is not physically inspected.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"5268\" data-end=\"5295\"><strong data-start=\"5272\" data-end=\"5293\">3. Event Counting<\/strong><\/h3>\r\n<ul data-start=\"5296\" data-end=\"5491\">\r\n \t<li data-start=\"5296\" data-end=\"5360\">\r\n<p data-start=\"5298\" data-end=\"5360\">Use surge counters like BRSC-01 to log each surge event.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5361\" data-end=\"5491\">\r\n<p data-start=\"5363\" data-end=\"5491\">Records help in predictive maintenance\u2014if an SPD has handled multiple high-energy events, plan for replacement before failure.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"5493\" data-end=\"5517\"><strong data-start=\"5497\" data-end=\"5515\">4. Replacement<\/strong><\/h3>\r\n<ul data-start=\"5518\" data-end=\"5670\">\r\n \t<li data-start=\"5518\" data-end=\"5597\">\r\n<p data-start=\"5520\" data-end=\"5597\">Modular SPDs (like our SLP and BR series) are plug-in\/plug-out designs.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5598\" data-end=\"5670\">\r\n<p data-start=\"5600\" data-end=\"5670\">Replace the cartridge without rewiring the base\u2014minimizing downtime.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h3 data-start=\"5672\" data-end=\"5699\"><strong data-start=\"5676\" data-end=\"5697\">5. Annual Testing<\/strong><\/h3>\r\n<ul data-start=\"5700\" data-end=\"5904\">\r\n \t<li data-start=\"5700\" data-end=\"5758\">\r\n<p data-start=\"5702\" data-end=\"5758\">Perform insulation resistance test between conductors.<\/p>\r\n<\/li>\r\n \t<li data-start=\"5759\" data-end=\"5834\">\r\n<p data-start=\"5761\" data-end=\"5834\">Measure earth resistance annually (target \u226410 \u03a9 or per local code).<\/p>\r\n<\/li>\r\n \t<li data-start=\"5835\" data-end=\"5904\">\r\n<p data-start=\"5837\" data-end=\"5904\">Document test results for compliance audits and warranty records.<\/p>\r\n<\/li>\r\n<\/ul>\r\n<h2 data-start=\"8172\" data-end=\"8187\">Conclusion<\/h2>\r\n<p data-start=\"8188\" data-end=\"8449\">Installing a Type 2 surge protector is not complicated, but it must be done correctly. By following proper installation rules\u2014short wiring, correct conductor size, reliable earthing, and backup protection\u2014you ensure that your SPD performs exactly as designed.<\/p>\r\n<p data-start=\"8451\" data-end=\"8610\">A UPS alone is not enough to protect sensitive systems. Pairing it with a properly installed Type 2 SPD provides the resilience modern facilities demand.<\/p>\r\n<p data-start=\"8612\" data-end=\"8947\">Our company\u2019s SLP40-275\/3S+1 and BR-30FU series SPDs are designed for easy DIN-rail installation, built-in safety features, and compliance with IEC 61643 standards. Whether you\u2019re protecting a residential board, a commercial office, or an industrial UPS system, these solutions ensure long-term reliability and peace of mind.<\/p>"},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog\/2171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/media\/2158"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/media?parent=2171"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog_category?post=2171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}