{"id":95728,"date":"2023-11-07T13:53:28","date_gmt":"2023-11-07T11:53:28","guid":{"rendered":"https:\/\/gahzly.com\/%d8%aa%d8%b5%d9%86%d9%8a%d9%81-%d8%a3%d8%ac%d9%87%d8%b2%d8%a9-%d8%ad%d9%85%d8%a7%d9%8a%d8%a9-%d8%a7%d9%84%d8%b7%d9%81%d8%b1%d8%a9\/"},"modified":"2023-11-07T14:00:59","modified_gmt":"2023-11-07T12:00:59","slug":"classification-of-surge-protection-devices","status":"publish","type":"post","link":"https:\/\/gahzly.com\/en\/\u0645\u0642\u0627\u0644\/classification-of-surge-protection-devices\/","title":{"rendered":"Classification of surge protection devices"},"content":{"rendered":"<div class=\"post-content-title-block\">\n<h1 class=\"post-title entry-title\" style=\"text-align: center\"><span style=\"vertical-align: inherit\"><span class=\"\" style=\"vertical-align: inherit\">Classification of surge protection devices<\/span><\/span><\/h1>\n<\/div>\n<figure style=\"width: 440px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gahzly.com\/wp-content\/uploads\/2023\/11\/download-4.jpg\" alt=\"Classification of surge protection devices\" width=\"440\" height=\"339\" title=\"l\"><figcaption class=\"wp-caption-text\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Classification of surge protection devices<\/span><\/span><\/figcaption><\/figure>\n<div class=\"entry clearfix\">\n<div class=\"section\">\n<div class=\"box visible\">\n<div><\/div>\n<div class=\"vstup\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The modern man, who tries to keep himself updated, saturates his home with electrical appliances for various purposes. <\/span><span style=\"vertical-align: inherit\">But not every homeowner believes that even if a short-term drive voltage occurs much higher than the rated voltage, his expensive set of electrical engineering and electronics may fail. <\/span><span style=\"vertical-align: inherit\">What is noteworthy, the effect of overvoltage on electricity consumers is harmful in that the affected equipment, as a rule, becomes unsuitable for repair.<\/span><\/span><\/div>\n<div><\/div>\n<div class=\"vstup\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">These force majeure circumstances can be, although not often, but guaranteed, the result of overvoltages in the networks due to the effects of thunderstorms, emergency phase interference or switching operations. <\/span><span style=\"vertical-align: inherit\">So-called surge protection devices are used to protect electrical equipment. <\/span><span style=\"vertical-align: inherit\">The principle of operation of SPD, layers and the difference between them, we considered below.<\/span><\/span><\/div>\n<div><\/div>\n<div class=\"soder\">\n<div id=\"kcmenu\" class=\"kc-title kc__title\"><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Content:<\/span><\/span><\/strong><\/div>\n<ul class=\"contents\">\n<li class=\"top\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">SPD rating<\/span><\/span><\/li>\n<li class=\"top\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Device types<\/span><\/span><\/li>\n<li class=\"top\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">How to equip protection?<\/span><\/span><\/li>\n<\/ul>\n<\/div>\n<h2><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">SPD rating<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Surge protection devices are a broad and generalized concept. <\/span><span style=\"vertical-align: inherit\">This category of devices includes devices that can be divided into categories:<\/span><\/span><\/p>\n<ul>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">I am class. <\/span><span style=\"vertical-align: inherit\">Designed to protect against the direct effects of lightning. <\/span><span style=\"vertical-align: inherit\">These devices must necessarily be equipped with input distribution devices (ASU) for administrative, industrial and residential residential buildings.<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Second degree. <\/span><span style=\"vertical-align: inherit\">They provide protection of electrical distribution networks against overvoltage caused by switching operations, and also perform the functions of the second stage of protection against the effects of lightning strikes. <\/span><span style=\"vertical-align: inherit\">They are installed and connected to the network in switchboards.<\/span><\/span><\/li>\n<li><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Third degree. <\/span><span style=\"vertical-align: inherit\">They are used to protect equipment from surge surges caused by residual surges and asymmetric voltage distribution between the phase and the neutral wire. <\/span><span style=\"vertical-align: inherit\">Devices of this class also operate in the mode of high-frequency interference filters. <\/span><\/span><br \/>\n<span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Most relevant to the conditions of a private house or apartment, they are delivered and installed directly by consumers. <\/span><span style=\"vertical-align: inherit\">Particularly popular are devices that are manufactured as units equipped with a quick mount to install on a din rail, or have a configuration of electrical outlets or electrical plugs.<\/span><\/span><\/li>\n<\/ul>\n<p><a href=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2017\/03\/ustrojstvo-zashhity-ot-impulsnyx-perenapryazhenij-3.jpg\" rel=\"nofollow noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-17135\" title=\"SPD classes\" src=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2017\/03\/ustrojstvo-zashhity-ot-impulsnyx-perenapryazhenij-3.jpg\" width=\"500\" height=\"277\" alt=\"\"><\/a><\/p>\n<h2><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Device types<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">All devices providing surge protection are divided into two types, which differ in design and principle of operation. <\/span><span style=\"vertical-align: inherit\">Think about how different types of SPDs work.<\/span><\/span><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Gate and sparks<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> . <\/span><span style=\"vertical-align: inherit\">The principle of operation of the arresters is based on the use of the effect of spark gaps. <\/span><span style=\"vertical-align: inherit\">The arrester design has an air gap in the jumper that connects the power line phases to the ground loop. <\/span><span style=\"vertical-align: inherit\">At rated voltage, the circuit in the jumper is broken. <\/span><span style=\"vertical-align: inherit\">In case of lightning as a result of overvoltage air gap collapse in the power transmission line occurs, the circuit between phase and ground closes, and the high voltage pulse goes directly to ground.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The design of the valve arrestor in the circuit with a spark gap provides a resistor into which the high voltage is pulsed. <\/span><span style=\"vertical-align: inherit\">Disconnectors are used in most cases in high voltage networks.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2017\/03\/ustrojstvo-zashhity-ot-impulsnyx-perenapryazhenij-4.jpg\" rel=\"nofollow noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-17134\" title=\"Gate barriers\" src=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2017\/03\/ustrojstvo-zashhity-ot-impulsnyx-perenapryazhenij-4.jpg\" alt=\"Gate barriers\" width=\"500\" height=\"326\" \/><\/a><\/p>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Mutation inhibitors<\/span><\/span><\/strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> . <\/span><span style=\"vertical-align: inherit\">These devices replaced obsolete detainees. <\/span><span style=\"vertical-align: inherit\">In order to understand how the limiter works, we need to remember the properties of nonlinear resistors, the principle of operation of the arrester is based on the use of current-voltage characteristics. <\/span><span style=\"vertical-align: inherit\">A capacitor is used as a nonlinear resistor in SPD. <\/span><span style=\"vertical-align: inherit\">For people who are not experienced in the intricacies of electrical engineering, there is little information about what it consists of and how it works. <\/span><span style=\"vertical-align: inherit\">The main material for the manufacture of capacitors is zinc oxide.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">In mixture with other metal oxides, an assembly consisting of pn junctions with current-voltage characteristics is created. <\/span><span style=\"vertical-align: inherit\">When the voltage in the network corresponds to the rated parameters, the current in the capacitor circuit is close to zero.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">At the time of overvoltage at the pn junctions, a sharp increase in current occurs, which causes the voltage to drop to a nominal value. <\/span><span style=\"vertical-align: inherit\">After normalization of the network parameters, the capacitor returns to the non-conducting mode and does not affect the operation of the device.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2017\/03\/ustrojstvo-zashhity-ot-impulsnyx-perenapryazhenij-1.png\" rel=\"nofollow noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-17131\" title=\"Modular arresters\" src=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2017\/03\/ustrojstvo-zashhity-ot-impulsnyx-perenapryazhenij-1.png\" alt=\"Modular arresters\" width=\"500\" height=\"475\" \/><\/a><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The small size of the arrester and a wide range of types of these devices have significantly expanded the scope of application of these devices. It is possible to use SPD as a means of surge protection for a private house or apartment.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">However, overvoltage limiters assembled on variators, despite all their advantages compared to spark gaps, have one significant drawback &#8211; limitation of their service life. <\/span><span style=\"vertical-align: inherit\">Due to the thermal protection built into it, the device after switching on remains inoperable for some time, which is why a quick-detachable device is provided on the SPD housing, which allows you to quickly replace the unit.<\/span><\/span><\/p>\n<div><\/div>\n<h2><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">How to equip protection?<\/span><\/span><\/h2>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Before proceeding with the installation and connection of surge protection, it is necessary to make the grounding in the house otherwise, all the work on arranging the SPD will lose all meaning.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The Classic scheme offers 3 levels of protection. <\/span><span style=\"vertical-align: inherit\">At the inputs, arresters are installed (SPD class I), providing lightning protection. <\/span><span style=\"vertical-align: inherit\">A second-class protective device, usually an arrester, is wired into the house switchboard. <\/span><\/span><br \/>\n<span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Its degree of protection should provide a reduction in overvoltage value for safe parameters of household appliances and the lighting network. <\/span><span style=\"vertical-align: inherit\">In the immediate vicinity of electronic products sensitive to current and voltage fluctuations it is recommended to connect a Class III SPD.<\/span><\/span><\/p>\n<p><a href=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2017\/03\/ustrojstvo-zashhity-ot-impulsnyx-perenapryazhenij-2.jpg\" rel=\"nofollow noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-17132\" title=\"SPD connection diagram\" src=\"https:\/\/my.electricianexp.com\/wp-content\/uploads\/2017\/03\/ustrojstvo-zashhity-ot-impulsnyx-perenapryazhenij-2.jpg\" alt=\"SPD connection diagram\" width=\"500\" height=\"367\" \/><\/a><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">When connecting an SPD, it is necessary to provide current protection and short circuit protection using a breaker or introductory fuses. <\/span><span style=\"vertical-align: inherit\">We will tell you more about installing these protective devices in a separate article.<\/span><\/span><\/p>\n<div><\/div>\n<p><strong><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">If you have any inquiry, please contact us freely and we will be happy to serve you.<\/span><\/span><\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"section\">\n<div dir=\"auto\">\n<p style=\"text-align: right\"><strong><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-45299 aligncenter\" title=\"Joyce box outside, 2 holes in the frame, specific sizes. Joyce box outside, 2 holes in the frame, specific sizes\" src=\"https:\/\/i0.wp.com\/www.gahzly.com\/wp-content\/uploads\/2020\/11\/%D9%85%D9%82%D8%A7%D9%841_1-1.jpg?resize=1140%2C776&amp;ssl=1\" alt=\"Joyce box outside, 2 holes in frame, specific sizes\" width=\"1140\" height=\"776\" data-recalc-dims=\"1\" \/><\/strong><\/p>\n<\/div>\n<div dir=\"auto\"><\/div>\n<div dir=\"auto\">\n<p style=\"text-align: center\"><a href=\"https:\/\/gahzly.com\/en\/\"><strong><em><u><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Jezli website for purchasing electrical appliances<\/span><\/span><\/u><\/em><\/strong><\/a><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">When we say Jeezly website, we are talking about one of the most famous Arab websites that was able, in a very short period of time, to achieve a very large demand for purchases from it by people from various parts and sectors of the Arab world.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">On the Jeezly website, you will find a joint look and all the products that you may need in your home, starting with those for kitchens or bathrooms, but even those for gardens, you will find them on this wonderful site.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">So, if you were lost before and did not know where to go to buy your products on the Internet, now you have the perfect solution, and all you have to do is go to the Jezli website and start choosing the products you want.<\/span><\/span><\/p>\n<p><strong><em><u><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-27987\" title=\"Types of circuit breakers 18 - Work and applications l\" src=\"https:\/\/www.gahzly.com\/wp-content\/uploads\/2020\/05\/%D9%88%D8%B5%D9%84%D8%A9-%D8%B4%D8%B1%D9%8A%D8%B7-%D9%84%D9%8A%D8%AF.jpg\" alt=\"LED strip connection\" width=\"512\" height=\"512\" \/><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">What are the features of Jeezly <\/span><\/span><a href=\"https:\/\/gahzly.com\/en\/\u0645\u0646\u062a\u062c\/power-strip-with-3-outlets-16-amp-black\/\">\u00a0<\/a><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">?<\/span><\/span><\/u><\/em><\/strong><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Since we are talking about a site that is preferred by many people around the world, there is no doubt that it is a site full of various features and characteristics. Therefore, we have decided to devote our next paragraph to pointing out the most prominent features of the Jezli site.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">One of the most prominent features of the site is the proportionality of prices. On the Jeezly website, you do not have to worry about the imaginary prices of the products, as is the case with most sites that display their products on the Internet.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">The price of delivering products is very reasonable and not expensive, and the site accepts delivery to various countries, without forgetting that it accepts free shipping on some products.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span class=\"\" style=\"vertical-align: inherit\">One of the features of the site is also the high quality of its products, as it is impossible to find a poor quality product. Rather, the Jezli website deals with the major companies, Philips, for example, and other famous brands, so you must remove from your mind the idea of \u200b\u200bthe poor quality of one of the products. <\/span><span style=\"vertical-align: inherit\">Another advantage of the site is that it does not specialize in one type of product, but rather you will find various types of products on it, for example, electrical appliances, hand tools, mechanical devices, paints, packages for establishing apartments, and many other types.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Jeezly website also accepts what is known as the shopping cart, which makes it easy for you to filter the products you want to buy and put them in one package in order to be able to pay with the click of a single button.<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Accepts multiple payment methods.<\/span><\/span><\/p>\n<h4><a href=\"https:\/\/gahzly.com\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-50673 size-full\" title=\"Components of an electrical circuit Components of an electrical circuit\" src=\"https:\/\/gahzly.com\/wp-content\/uploads\/2021\/12\/editor-1s-188px-15.gif\" alt=\"Electrical circuit components\" width=\"188\" height=\"188\" \/><\/a><\/h4>\n<h4><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">We are pleased that you visit our social media pages, where we publish exclusive offers on our website.<\/span><\/span><\/h4>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Our Facebook page\u00a0 <\/span><\/span><a href=\"https:\/\/www.facebook.com\/Gahzlystore\/\" target=\"_blank\" rel=\"noopener\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">is here<\/span><\/span><\/a><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> .<\/span><\/span><\/p>\n<p><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">Our Twitter account\u00a0 <\/span><\/span><a href=\"https:\/\/twitter.com\/gahzly1\" target=\"_blank\" rel=\"noopener\"><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\">is here<\/span><\/span><\/a><span style=\"vertical-align: inherit\"><span style=\"vertical-align: inherit\"> .<\/span><\/span><\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Classification of surge protection devices The modern man, who tries to keep himself updated, saturates his home with electrical appliances for various purposes. But not every homeowner believes that even if a short-term drive voltage occurs much higher than the rated voltage, his expensive set of electrical engineering and electronics may fail. What is noteworthy, [&hellip;]<\/p>\n","protected":false},"author":1798,"featured_media":95724,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12318,7375,9932,12319],"tags":[],"class_list":["post-95728","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sell-online","category-articles","category-electricity-en","category-shop-online"],"featured_image_src":{"landsacpe":["https:\/\/gahzly.com\/wp-content\/uploads\/2023\/11\/download-4.jpg",256,197,false],"list":["https:\/\/gahzly.com\/wp-content\/uploads\/2023\/11\/download-4.jpg",256,197,false],"medium":["https:\/\/gahzly.com\/wp-content\/uploads\/2023\/11\/download-4.jpg",256,197,false],"full":["https:\/\/gahzly.com\/wp-content\/uploads\/2023\/11\/download-4.jpg",256,197,false]},"jetpack_featured_media_url":"https:\/\/gahzly.com\/wp-content\/uploads\/2023\/11\/download-4.jpg","_links":{"self":[{"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/posts\/95728","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/users\/1798"}],"replies":[{"embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/comments?post=95728"}],"version-history":[{"count":0,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/posts\/95728\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/media\/95724"}],"wp:attachment":[{"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/media?parent=95728"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/categories?post=95728"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gahzly.com\/en\/wp-json\/wp\/v2\/tags?post=95728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}