{"id":793,"date":"2023-12-19T16:21:13","date_gmt":"2023-12-19T08:21:13","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&#038;p=793"},"modified":"2024-09-05T16:36:16","modified_gmt":"2024-09-05T08:36:16","slug":"how-power-surge-happen-and-what-to-do-about-them","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/fi\/blog\/how-power-surge-happen-and-what-to-do-about-them\/","title":{"rendered":"Miten virtapiikit tapahtuvat ja mit\u00e4 tehd\u00e4 niille"},"content":{"rendered":"<strong>Mik\u00e4 on Power Surge?<\/strong>\r\n\r\nPower surges are just as the name suggests: surges of electrical power that is higher than normal. Typical voltage levels for household appliances and electronics are between 110 volts and 230 volts in most countries. When significantly more voltage comes through wires into devices, it\u2019s known as a power surge. These surges can be small or large, resulting in reduced performance or possibly damaging plugged-in devices.\r\n\r\nA power surge is an extremely fast and intense power spike in electrical current. Surges are also referred to as \u201ctransient voltage\u201d because they\u2019re caused by the sudden presence of an overvoltage traveling through an electrical system.\r\n\r\n<strong>Mik\u00e4 aiheuttaa virtapiikin?<\/strong>\r\n\r\nVirtapiikin syit\u00e4 on useita. T\u00e4rkeimm\u00e4t syyt ovat s\u00e4hk\u00f6n ylikuormitus, vialliset johdotukset, salamaniskut ja virran palautuminen s\u00e4hk\u00f6katkon tai s\u00e4hk\u00f6katkon j\u00e4lkeen.\r\n\r\n<strong>S\u00e4hk\u00f6inen ylikuormitus<\/strong>\r\n\r\nS\u00e4hk\u00f6isi\u00e4 ylikuormituksia voi esiinty\u00e4, kun yhdest\u00e4 piirist\u00e4 otetaan liian paljon tehoa. T\u00e4m\u00e4 tapahtuu useimmiten jatkojohtojen liiallisesta k\u00e4yt\u00f6st\u00e4 ja liian monen laitteen kytkemisest\u00e4 samaan piiriin.\r\n\r\n<strong>Viallinen johdotus<\/strong>\r\n\r\nViallinen johdotus on mahdollinen sis\u00e4inen syy virtapiikeille, joita esiintyy todenn\u00e4k\u00f6isemmin vaurioituneiden tai paljaiden s\u00e4hk\u00f6johtojen yhteydess\u00e4.\r\n\r\n<strong>Salamanisku<\/strong>\r\n\r\nSalama harvoin vahingoittaa laitteita suoran altistuksen kautta. Silti se voi aiheuttaa tuhoa laukaisemalla virtapiikin. Salamavaurio johtuu yleens\u00e4 suorasta iskusta voimalinjoihin, mik\u00e4 tuottaa suuren j\u00e4nnitteen. Salaman koskettaminen vain l\u00e4hell\u00e4 s\u00e4hk\u00f6johtoa voi aiheuttaa miljoonien volttien ylim\u00e4\u00e4r\u00e4isen s\u00e4hk\u00f6j\u00e4nnitteen piikin. Salamaniskujen aiheuttamat virtapiikit voivat tuhota elektroniikkasi.\r\n\r\n<strong>S\u00e4hk\u00f6katkos tai s\u00e4hk\u00f6katkos<\/strong>\r\n\r\nS\u00e4hk\u00f6katkokset johtuvat tyypillisesti laajamittaisesta s\u00e4hk\u00f6verkkoh\u00e4iri\u00f6st\u00e4, ja vaikka s\u00e4hk\u00f6n puute ei yleens\u00e4 aiheuta ongelmia, yhteyden paluu usein voi. On tavallista kokea \u00e4killinen virran hyppy, kun virta palaa katkon j\u00e4lkeen. T\u00e4m\u00e4n seurauksena t\u00e4m\u00e4 ylij\u00e4nnite voi vahingoittaa kaikkia kytkettyj\u00e4 laitteita ja laitteita, joissa ei ole ylij\u00e4nnitesuojaa.\r\n\r\n<strong>Ovatko ylij\u00e4nnitesuojat v\u00e4ltt\u00e4m\u00e4tt\u00f6mi\u00e4?<\/strong>\r\n\r\nIlman ylij\u00e4nnitesuojaa \u00e4killinen j\u00e4nnitepiikki ja siihen liittyv\u00e4 virtapiikki voivat vahingoittaa laitettasi. Vaikka virtapiike ei t\u00e4ysin tuhoaisi elektroniikkaasi, se voi lyhent\u00e4\u00e4 laitteiden k\u00e4ytt\u00f6ik\u00e4\u00e4 tai muuten vahingoittaa laitteita ja laitteita.\r\n\r\n<strong>Kuinka est\u00e4\u00e4 virtapiikkej\u00e4 vahingoittamasta elektronisia laitteita?<\/strong>\r\n\r\nYlij\u00e4nnitesuojalaitteiden k\u00e4ytt\u00f6, varsinkin kun se yhdistet\u00e4\u00e4n luotettavaan maadoitusj\u00e4rjestelm\u00e4\u00e4n, suojaa s\u00e4hk\u00f6laitteita ja -laitteita kaikilta paitsi vakavimmilta virtapiikeilt\u00e4.","protected":false},"featured_media":794,"parent":0,"menu_order":178,"template":"","meta":{"_acf_changed":false},"blog_category":[8],"class_list":["post-793","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-company-news"],"acf":{"des":"What Is Power Surge?Power surges are just as the name suggests: surges of electrical power that is higher than normal.","txt":"<strong>What Is Power Surge?<\/strong>\r\n\r\nPower surges are just as the name suggests: surges of electrical power that is higher than normal. Typical voltage levels for household appliances and electronics are between 110 volts and 230 volts in most countries. When significantly more voltage comes through wires into devices, it\u2019s known as a power surge. These surges can be small or large, resulting in reduced performance or possibly damaging plugged-in devices.\r\n\r\nA power surge is an extremely fast and intense power spike in electrical current. Surges are also referred to as \u201ctransient voltage\u201d because they\u2019re caused by the sudden presence of an overvoltage traveling through an electrical system.\r\n\r\n<strong>What Causes Power Surge?<\/strong>\r\n\r\nThere are several causes for a power surge. The main reasons are electrical overload, faulty wiring, lightning strikes, and the restoration of power after a power outage or blackout.\r\n\r\n<strong>Electrical Overload<\/strong>\r\n\r\nElectrical overloads can occur when too much power is drawn from a single circuit. This happens most commonly from overusing extension cords and plugging in too many devices into the same circuit.\r\n\r\n<strong>Faulty Wiring<\/strong>\r\n\r\nFaulty wiring is a potential internal cause of power surges, which are more likely to happen with damaged or exposed electrical wires.\r\n\r\n<strong>Lightning Strike<\/strong>\r\n\r\nLightning rarely damages appliances through direct exposure. Still, it can wreak havoc by triggering a power surge. Lightning damage usually results from a direct strike on power lines, which produces a large voltage. Lightning touching down simply near your power line can lead to an extra spike in electrical voltage of millions of volts. Power surges from lightning strikes can destroy your electronics.\r\n\r\n<strong>Power Outage or Blackout<\/strong>\r\n\r\nPower outages typically occur due to large-scale power grid failure, and while the lack of electricity doesn\u2019t usually cause any issues, the return to connection often can. It\u2019s common to experience a sudden jump in current when power is restored following an outage. As a result, this power surge has the potential to damage any plugged-in appliances and devices that do not have surge protectors.\r\n\r\n<strong>Are Surge Protectors Necessary?<\/strong>\r\n\r\nWithout surge protector, a sudden voltage spike and accompanying power surge could damage your equipment. Even if a power surge doesn\u2019t completely ruin your electronics, it can shorten the lifespan of devices, or otherwise harm devices and appliances.\r\n\r\n<strong>How Prevent a Power Surge From Damaging Electronic Devices?<\/strong>\r\n\r\nUsing surge protection devices, especially when combined with a reliable grounding system, will protect electrical devices and appliances from all but the most severe power surges."},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/fi\/wp-json\/wp\/v2\/blog\/793","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/fi\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/fi\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/fi\/wp-json\/wp\/v2\/media\/794"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/fi\/wp-json\/wp\/v2\/media?parent=793"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/fi\/wp-json\/wp\/v2\/blog_category?post=793"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}