{"id":868,"date":"2023-12-12T15:39:17","date_gmt":"2023-12-12T07:39:17","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&p=868"},"modified":"2024-09-05T16:41:11","modified_gmt":"2024-09-05T08:41:11","slug":"how-to-choose-an-spd","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/fr\/blog\/how-to-choose-an-spd\/","title":{"rendered":"Comment choisir un SPD"},"content":{"rendered":"Pourquoi acheter un dispositif de protection contre les surtensions (SPD)\u00a0?<\/strong>\r\n\r\nUn dispositif de protection contre les surtensions (SPD) est con\u00e7u pour r\u00e9duire les surtensions, ce qui prot\u00e8ge l'\u00e9quipement et r\u00e9duit les co\u00fbts de r\u00e9paration et de remplacement. Chaque SPD r\u00e9duit la surtension de l'\u00e9quipement lors d'une surtension \u00e0 un niveau de tension test\u00e9 connu sous le nom de Let-Through-Voltage.\r\n\r\nTypes de protection<\/strong>\r\n\r\nLorsqu\u2019on parle des diff\u00e9rents types de protection contre les surtensions, on distingue trois types principaux\u00a0:\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Taper<\/td>\r\nCe que \u00e7a fait<\/td>\r\nO\u00f9 l'utiliser<\/td>\r\n<\/tr>\r\n
Tapez 1<\/td>\r\nProtection contre les coups de foudre directs<\/td>\r\nAu d\u00e9part du r\u00e9seau de toute installation \u00e9lectrique o\u00f9 est install\u00e9e une protection externe contre la foudre ou qui est aliment\u00e9e par des lignes a\u00e9riennes.<\/td>\r\n<\/tr>\r\n
Tapez 2<\/td>\r\nProtection contre les surtensions<\/td>\r\nAu niveau de l'arriv\u00e9e principale de tout b\u00e2timent qui n'a pas besoin de protection contre la foudre, et pour une utilisation sur tous les sous-panneaux situ\u00e9s \u00e0 plus de 10-15 m\u00e8tres du panneau principal.<\/td>\r\n<\/tr>\r\n
Tapez 3<\/td>\r\nProtection des \u00e9quipements finaux<\/td>\r\nSur tout \u00e9quipement n\u00e9cessitant une faible tension de passage.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nQuelle est la bonne fa\u00e7on de d\u00e9terminer la taille du SPD \u00e0 utiliser dans un syst\u00e8me\u00a0?<\/strong>\r\n\r\nSPDs are not one-size-fits-all devices, nor do the sizes of their kA rating (the surge rating) go hand-in-hand with the size of the panel. In other words, do not select an SPD with a maximum kA rating just because the panel is large.\r\n\r\nTo determine which SPD should be used for the system, you must know the reference to the ground as well as the type of voltage that is present. Therefore, a panel designer should first determine the type of electrical system in use, and then calculate the voltage reference to ground. The formula to determine this will depend on the type of system.\r\n\r\nFor example, for a single-phase system (also called a split-phase system), the line-to-line voltage is divided by two. The result is the optimal amount of volts that the SPD should have for that system.\r\n\r\nComment choisir un appareil<\/strong>\r\n
    \r\n \t
  • L'appareil est-il adapt\u00e9 \u00e0 votre mise \u00e0 la terre ?<\/li>\r\n<\/ul>\r\nC'est l'un des probl\u00e8mes les plus courants lors de l'installation de SPD. La consid\u00e9ration la plus importante concerne les syst\u00e8mes TT, o\u00f9 l'appareil doit \u00eatre adapt\u00e9.\r\n
      \r\n \t
    • L'appareil prot\u00e8ge-t-il \u00e0 la fois les p\u00f4les sous tension et neutre\u00a0?<\/li>\r\n<\/ul>\r\nIl existe quelques appareils sur le march\u00e9 qui peuvent sembler peu co\u00fbteux par rapport \u00e0 d'autres appareils, mais si l'appareil ne prot\u00e8ge pas \u00e0 la fois le courant et le neutre, les surtensions peuvent p\u00e9n\u00e9trer dans votre propri\u00e9t\u00e9 et contourner le SPD.\r\n
        \r\n \t
      • Quelle garantie le fabricant offre-t-il ?<\/li>\r\n<\/ul>\r\nIl s'agit g\u00e9n\u00e9ralement d'un indicateur cl\u00e9 de la qualit\u00e9 des composants utilis\u00e9s dans le SPD.\r\n\r\nAchat du bon dispositif de protection contre les surtensions (SPD).<\/strong>\r\n\r\nAlors que n'importe quel SPD r\u00e9duira le niveau de surtension transmis \u00e0 l'\u00e9quipement \u00e9lectrique lors d'un \u00e9v\u00e9nement de surtension, certains ont une tension de passage trop \u00e9lev\u00e9e pour \u00e9viter les dommages, ce qui revient presque \u00e0 ne pas avoir de protection du tout. BRITEC propose une gamme compl\u00e8te de parafoudres pour prot\u00e9ger les \u00e9quipements \u00e9lectriques. Les dispositifs de protection contre les surtensions BRITEC sont le bon choix pour toutes les entreprises et tous les foyers.","protected":false},"featured_media":870,"parent":0,"menu_order":143,"template":"","meta":{"_acf_changed":false},"blog_category":[8],"class_list":["post-868","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-company-news"],"acf":{"des":"A Surge Protective Device (SPD) is designed to reduce surge voltage, which protects equipment and reduces repair and replacement costs. Every SPD reduces the surge voltage to equipment during a surge to a voltage tested level known as Let-Through-Voltage.","txt":"Why Purchase a Surge Protective Device (SPD)?<\/strong>\r\n\r\nA Surge Protective Device (SPD) is designed to reduce surge voltage, which protects equipment and reduces repair and replacement costs. Every SPD reduces the surge voltage to equipment during a surge to a voltage tested level known as Let-Through-Voltage.\r\n\r\nTypes of Protection<\/strong>\r\n\r\nWhen discussing di\ufb00erent types of surge protection, there are three main types:\r\n\r\n\r\n\r\n\r\n\r\n\r\n
        Type<\/td>\r\nWhat it does<\/td>\r\nWhere to use it<\/td>\r\n<\/tr>\r\n
        Type 1<\/td>\r\nProtection against direct Lightning strikes<\/td>\r\nAt the mains incomer of any electrical installation where external Lightning Protection is installed, or is fed by overhead lines.<\/td>\r\n<\/tr>\r\n
        Type 2<\/td>\r\nSurge Protection<\/td>\r\nAt the mains incomer of any building that doesn\u2019t need any lightning protection, and for use on any sub boards more than 10-15 meters from the main panel.<\/td>\r\n<\/tr>\r\n
        Type 3<\/td>\r\nEnd equipment protection<\/td>\r\nOn any piece of equipment where a low let through voltage is needed.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nWhat is the correct way to determine which size of SPD to use in a system?<\/strong>\r\n\r\nSPDs are not one-size-fits-all devices, nor do the sizes of their kA rating (the surge rating) go hand-in-hand with the size of the panel. In other words, do not select an SPD with a maximum kA rating just because the panel is large.\r\n\r\nTo determine which SPD should be used for the system, you must know the reference to the ground as well as the type of voltage that is present. Therefore, a panel designer should first determine the type of electrical system in use, and then calculate the voltage reference to ground. The formula to determine this will depend on the type of system.\r\n\r\nFor example, for a single-phase system (also called a split-phase system), the line-to-line voltage is divided by two. The result is the optimal amount of volts that the SPD should have for that system.\r\n\r\nHow to choose a device<\/strong>\r\n
          \r\n \t
        • Is the device suitable for your earthing arrangement?<\/li>\r\n<\/ul>\r\nThis is one of the most common issues with SPD installation. The most important consideration is for TT systems, where the device needs to be suitable.\r\n
            \r\n \t
          • Is the device protecting both the live & neutral poles?<\/li>\r\n<\/ul>\r\nThere are a few devices on the market with may seem inexpensive compared to other devices, but if the device is not protecting both live & neutral, surges may enter your property and bypass the SPD.\r\n
              \r\n \t
            • What warranty does the manufacturer provide?<\/li>\r\n<\/ul>\r\nThis is generally a key indicator of the quality of the components used in the SPD.\r\n\r\nPurchasing the Right Surge Protective Device (SPD).<\/strong>\r\n\r\nWhile any SPD will reduce the surge voltage level passing to electrical equipment during a surge event, some have a Let-Through-Voltage that is too high to prevent damage, which is almost the same as having no protection at all. BRITEC offers a complete range of surge protective devices to protect electrical equipment. BRITEC Surge Protective Devices are the right choice for all businesses and homes."},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog\/868","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\/870"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/media?parent=868"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/fr\/wp-json\/wp\/v2\/blog_category?post=868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}