{"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\/hu\/blog\/how-to-choose-an-spd\/","title":{"rendered":"Hogyan v\u00e1lasszunk SPD-t"},"content":{"rendered":"Mi\u00e9rt \u00e9rdemes t\u00falfesz\u00fclts\u00e9g-v\u00e9d\u0151 eszk\u00f6zt (SPD) v\u00e1s\u00e1rolni?<\/strong>\r\n\r\nA t\u00falfesz\u00fclts\u00e9gv\u00e9d\u0151 eszk\u00f6zt (SPD) a t\u00falfesz\u00fclts\u00e9g cs\u00f6kkent\u00e9s\u00e9re tervezt\u00e9k, ami v\u00e9di a berendez\u00e9seket, \u00e9s cs\u00f6kkenti a jav\u00edt\u00e1si \u00e9s cserek\u00f6lts\u00e9geket. Minden SPD cs\u00f6kkenti a berendez\u00e9s t\u00falfesz\u00fclts\u00e9g\u00e9t t\u00falfesz\u00fclts\u00e9g alatt a tesztelt fesz\u00fclts\u00e9gszintre, amelyet \u00e1tenged\u0151 fesz\u00fclts\u00e9gk\u00e9nt ismer\u00fcnk.\r\n\r\nA v\u00e9delem t\u00edpusai<\/strong>\r\n\r\nAmikor a t\u00falfesz\u00fclts\u00e9g-v\u00e9delem k\u00fcl\u00f6nb\u00f6z\u0151 t\u00edpusait t\u00e1rgyaljuk, h\u00e1rom f\u0151 t\u00edpust k\u00fcl\u00f6nb\u00f6ztet\u00fcnk meg:\r\n\r\n\r\n\r\n\r\n\r\n\r\n
\u00cdrja be<\/td>\r\nMit csin\u00e1l<\/td>\r\nHol kell haszn\u00e1lni<\/td>\r\n<\/tr>\r\n
1. t\u00edpus<\/td>\r\nK\u00f6zvetlen vill\u00e1mcsap\u00e1s elleni v\u00e9delem<\/td>\r\nMinden olyan villanyszerel\u00e9s h\u00e1l\u00f3zati bemenet\u00e9n\u00e9l, ahol k\u00fcls\u0151 vill\u00e1mv\u00e9delem van be\u00e9p\u00edtve, vagy fels\u0151vezet\u00e9kr\u0151l t\u00e1pl\u00e1lj\u00e1k.<\/td>\r\n<\/tr>\r\n
2. t\u00edpus<\/td>\r\nT\u00falfesz\u00fclts\u00e9g elleni v\u00e9delem<\/td>\r\nB\u00e1rmilyen vill\u00e1mv\u00e9delmet nem ig\u00e9nyl\u0151 \u00e9p\u00fclet h\u00e1l\u00f3zati csatlakoz\u00f3j\u00e1n\u00e1l, illetve a f\u0151panelt\u0151l 10-15 m\u00e9tern\u00e9l t\u00e1volabb l\u00e9v\u0151 alt\u00e1bl\u00e1kon haszn\u00e1lhat\u00f3.<\/td>\r\n<\/tr>\r\n
3. t\u00edpus<\/td>\r\nV\u00e9gberendez\u00e9s v\u00e9delme<\/td>\r\nMinden olyan berendez\u00e9sen, ahol alacsony \u00e1tereszt\u0151 fesz\u00fclts\u00e9gre van sz\u00fcks\u00e9g.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\nMi a helyes m\u00f3dszer annak meghat\u00e1roz\u00e1s\u00e1ra, hogy milyen m\u00e9ret\u0171 SPD-t kell haszn\u00e1lni egy rendszerben?<\/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\nHogyan v\u00e1lasszunk k\u00e9sz\u00fcl\u00e9ket<\/strong>\r\n
    \r\n \t
  • Alkalmas-e a k\u00e9sz\u00fcl\u00e9k az \u00d6n f\u00f6ldel\u00e9si elrendez\u00e9s\u00e9re?<\/li>\r\n<\/ul>\r\nEz az egyik leggyakoribb probl\u00e9ma az SPD telep\u00edt\u00e9s\u00e9vel kapcsolatban. A legfontosabb szempont a TT rendszerek, ahol az eszk\u00f6znek megfelel\u0151nek kell lennie.\r\n
      \r\n \t
    • A k\u00e9sz\u00fcl\u00e9k v\u00e9di a fesz\u00fclts\u00e9g alatti \u00e9s a nullap\u00f3lust is?<\/li>\r\n<\/ul>\r\nVan n\u00e9h\u00e1ny olyan eszk\u00f6z a piacon, amelyek olcs\u00f3nak t\u0171nhetnek m\u00e1s eszk\u00f6z\u00f6kh\u00f6z k\u00e9pest, de ha az eszk\u00f6z nem v\u00e9di az \u00e9les \u00e9s a semleges \u00e1llapotot, t\u00falfesz\u00fclts\u00e9gek l\u00e9phetnek be a tulajdon\u00e1ba, \u00e9s megker\u00fclhetik az SPD-t.\r\n
        \r\n \t
      • Milyen garanci\u00e1t v\u00e1llal a gy\u00e1rt\u00f3?<\/li>\r\n<\/ul>\r\nEz \u00e1ltal\u00e1ban az SPD-ben haszn\u00e1lt \u00f6sszetev\u0151k min\u0151s\u00e9g\u00e9nek kulcsmutat\u00f3ja.\r\n\r\nA megfelel\u0151 t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi eszk\u00f6z (SPD) v\u00e1s\u00e1rl\u00e1sa.<\/strong>\r\n\r\nB\u00e1r b\u00e1rmely SPD cs\u00f6kkenti a t\u00falfesz\u00fclts\u00e9g-esem\u00e9ny sor\u00e1n az elektromos berendez\u00e9sekre \u00e1thalad\u00f3 t\u00falfesz\u00fclts\u00e9g-szintet, egyesekn\u00e9l az \u00e1tereszt\u0151 fesz\u00fclts\u00e9g t\u00fal magas ahhoz, hogy megakad\u00e1lyozza a k\u00e1rosod\u00e1st, ami majdnem megegyezik a v\u00e9delem hi\u00e1ny\u00e1val. A BRITEC a t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi eszk\u00f6z\u00f6k teljes v\u00e1laszt\u00e9k\u00e1t k\u00edn\u00e1lja az elektromos berendez\u00e9sek v\u00e9delm\u00e9re. A BRITEC t\u00falfesz\u00fclts\u00e9gv\u00e9d\u0151 eszk\u00f6z\u00f6k a megfelel\u0151 v\u00e1laszt\u00e1s minden v\u00e1llalkoz\u00e1s \u00e9s otthon sz\u00e1m\u00e1ra.","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\/hu\/wp-json\/wp\/v2\/blog\/868","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/hu\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/hu\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/hu\/wp-json\/wp\/v2\/media\/870"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/hu\/wp-json\/wp\/v2\/media?parent=868"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/hu\/wp-json\/wp\/v2\/blog_category?post=868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}