{"id":795,"date":"2023-12-19T16:29:05","date_gmt":"2023-12-19T08:29:05","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&#038;p=795"},"modified":"2024-09-05T16:36:25","modified_gmt":"2024-09-05T08:36:25","slug":"how-to-protect-your-solar-power-system-from-lightning","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/it\/blog\/how-to-protect-your-solar-power-system-from-lightning\/","title":{"rendered":"Come proteggere il tuo impianto fotovoltaico dai fulmini"},"content":{"rendered":"I fulmini sono una causa comune di guasti nei sistemi fotovoltaici (PV) ed eolici. Un'ondata dannosa pu\u00f2 verificarsi a causa di un fulmine che colpisce a lunga distanza dal sistema o anche tra le nuvole. Ma la maggior parte dei danni causati dai fulmini \u00e8 prevenibile.\r\n\r\n<strong>Mettiti a terra<\/strong>\r\n\r\nGrounding is the most fundamental technique for protection against lightning damage. You can\u2019t stop a lightning surge, but you can give it a direct path to ground that bypasses your valuable equipment, and safely discharges the surge into the earth.\r\n\r\nLightning arrestors and surge protectors are designed to protect electronic equipment by absorbing electrical surges. However, these devices are not a substitute for good grounding. They function only in conjunction with effective grounding. The grounding system is an important part of your wiring infrastructure.\r\n\r\nStep one in grounding is to construct a discharge path to ground by bonding (interconnecting) all the metal structural components and electrical enclosures, such as PV module frames, mounting racks, and wind generator towers.\r\n\r\n<strong>Aste di terra<\/strong>\r\n\r\nL'aspetto pi\u00f9 debole di molte installazioni \u00e8 il collegamento con la terra stessa. Dopotutto, non puoi semplicemente collegare un filo al pianeta! Invece, devi seppellire o martellare un'asta di metallo conduttivo e non corrosivo (generalmente rame) nel terreno e assicurarti che la maggior parte della sua superficie sia a contatto con il terreno conduttivo (ovvero umido). In questo modo, quando lungo la linea arriva l\u2019elettricit\u00e0 statica o una sovratensione, gli elettroni possono defluire nel terreno con una resistenza minima.\r\n\r\n<strong>Parafulmini<\/strong>\r\n\r\nLightning (surge) arrestors are designed to absorb voltage spikes caused by electrical storms (or out-of-spec utility power), and effectively allow the surge to bypass power wiring and your equipment. Surge protectors should be installed at both ends of any long wire run that is connected to any part of your system, including AC lines from an inverter. Arrestors are made for various voltages for both AC and DC.\r\n\r\nBRITEC surge arrestors are high quality products for lightning-prone sites and larger installations. These durable units offer robust protection and compatibility with a wide variety of system voltages.\r\n\r\n<strong>Parafulmini<\/strong>\r\n\r\n\u201cLightning rods\u201d are static discharge devices that are placed above buildings and solar-electric arrays, and connected to ground.\r\n\r\nLightning rods are typically only used at sites that experience extreme electrical storms.","protected":false},"featured_media":796,"parent":0,"menu_order":177,"template":"","meta":{"_acf_changed":false},"blog_category":[8],"class_list":["post-795","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-company-news"],"acf":{"des":"Lightning is a common cause of failures in photovoltaic (PV) and wind-electric systems. A damaging surge can occur from lightning that strikes a long distance from the system, or even between clouds. But most lightning damage is preventable.","txt":"Lightning is a common cause of failures in photovoltaic (PV) and wind-electric systems. A damaging surge can occur from lightning that strikes a long distance from the system, or even between clouds. But most lightning damage is preventable.\r\n\r\n<strong>Get Grounded<\/strong>\r\n\r\nGrounding is the most fundamental technique for protection against lightning damage. You can\u2019t stop a lightning surge, but you can give it a direct path to ground that bypasses your valuable equipment, and safely discharges the surge into the earth.\r\n\r\nLightning arrestors and surge protectors are designed to protect electronic equipment by absorbing electrical surges. However, these devices are not a substitute for good grounding. They function only in conjunction with effective grounding. The grounding system is an important part of your wiring infrastructure.\r\n\r\nStep one in grounding is to construct a discharge path to ground by bonding (interconnecting) all the metal structural components and electrical enclosures, such as PV module frames, mounting racks, and wind generator towers.\r\n\r\n<strong>Ground Rods<\/strong>\r\n\r\nThe weakest aspect of many installations is the connection to the earth itself. After all, you can\u2019t just bolt a wire to the planet! Instead, you must bury or hammer a rod of conductive, noncorrosive metal (generally copper) into the ground, and make sure most of its surface area contacts conductive (that means moist) soil. This way, when static electricity or a surge comes down the line, the electrons can drain into the ground with minimal resistance.\r\n\r\n<strong>Lightning Arrestors<\/strong>\r\n\r\nLightning (surge) arrestors are designed to absorb voltage spikes caused by electrical storms (or out-of-spec utility power), and effectively allow the surge to bypass power wiring and your equipment. Surge protectors should be installed at both ends of any long wire run that is connected to any part of your system, including AC lines from an inverter. Arrestors are made for various voltages for both AC and DC.\r\n\r\nBRITEC surge arrestors are high quality products for lightning-prone sites and larger installations. These durable units offer robust protection and compatibility with a wide variety of system voltages.\r\n\r\n<strong>Lightning Rods<\/strong>\r\n\r\n\u201cLightning rods\u201d are static discharge devices that are placed above buildings and solar-electric arrays, and connected to ground.\r\n\r\nLightning rods are typically only used at sites that experience extreme electrical storms."},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/it\/wp-json\/wp\/v2\/blog\/795","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/it\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/it\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/it\/wp-json\/wp\/v2\/media\/796"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/it\/wp-json\/wp\/v2\/media?parent=795"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/it\/wp-json\/wp\/v2\/blog_category?post=795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}