{"id":788,"date":"2023-12-19T16:17:16","date_gmt":"2023-12-19T08:17:16","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&#038;p=788"},"modified":"2024-09-05T16:36:06","modified_gmt":"2024-09-05T08:36:06","slug":"what-is-the-difference-between-10-350%ce%bcs-and-8-20%ce%bcs-waveform","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/ru\/blog\/what-is-the-difference-between-10-350%ce%bcs-and-8-20%ce%bcs-waveform\/","title":{"rendered":"\u0412 \u0447\u0435\u043c \u0440\u0430\u0437\u043d\u0438\u0446\u0430 \u043c\u0435\u0436\u0434\u0443 \u0444\u043e\u0440\u043c\u043e\u0439 \u0441\u0438\u0433\u043d\u0430\u043b\u0430 10\/350 \u043c\u043a\u0441 \u0438 8\/20 \u043c\u043a\u0441?"},"content":{"rendered":"According to IEC61643-11, Type 1 surge protective device should be tested by 10\/350\u03bcs waveform and Type 2 SPD should be tested by 8\/20\u03bcs waveform.\r\n\r\n10\/350\u03bcs waveform is a surge which reaches peak value at 10\u03bcs and it reduces to half of peak current at 350\u03bcs. Take BR-25GR type 1 SPD as an example, the product was tested at waveform which reach 25kA in 10\u03bcs which reduces to12.5kA at 350\u03bcs.\r\n\r\nAs comparison, 8\/20\u03bcs waveform is a surge which reaches peak value at 8\u03bcs and reduces to half of peak current at 20\u03bcs. Take BR-40 type 2 SPD as an example, this product was tested at waveform which reach 40kA in 8\u03bcs which reduces to 20kA at 20\u03bcs.\r\n\r\nAs you can see from the above picture, 8\/20\u03bcs waveform has much shorter time than the 10\/350\u03bcs waveform. As energy equals to current square multiplied by resistor and time (E=I<sup>2<\/sup>Rt), \u0430 \u0440\u0430\u0437\u043d\u0438\u0446\u0430 \u0432\u043e \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u043c\u0435\u0436\u0434\u0443 \u0434\u0432\u0443\u043c\u044f \u0432\u043e\u043b\u043d\u0430\u043c\u0438 \u043e\u0447\u0435\u043d\u044c \u0432\u0435\u043b\u0438\u043a\u0430, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u0423\u0417\u0418\u041f \u0442\u0438\u043f\u0430 1 25 \u043a\u0410 \u043c\u043e\u0436\u0435\u0442 \u0440\u0430\u0437\u0440\u044f\u0434\u0438\u0442\u044c \u0433\u043e\u0440\u0430\u0437\u0434\u043e \u0431\u043e\u043b\u044c\u0448\u0435 \u044d\u043d\u0435\u0440\u0433\u0438\u0438, \u0447\u0435\u043c \u0423\u0417\u0418\u041f \u0442\u0438\u043f\u0430 2 40 \u043a\u0410.","protected":false},"featured_media":789,"parent":0,"menu_order":179,"template":"","meta":{"_acf_changed":false},"blog_category":[8],"class_list":["post-788","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-company-news"],"acf":{"des":"According to IEC61643-11, Type 1 surge protective device should be tested by 10\/350\u03bcs waveform and Type 2 SPD should be tested by 8\/20\u03bcs waveform.","txt":"According to IEC61643-11, Type 1 surge protective device should be tested by 10\/350\u03bcs waveform and Type 2 SPD should be tested by 8\/20\u03bcs waveform.\r\n\r\n10\/350\u03bcs waveform is a surge which reaches peak value at 10\u03bcs and it reduces to half of peak current at 350\u03bcs. Take BR-25GR type 1 SPD as an example, the product was tested at waveform which reach 25kA in 10\u03bcs which reduces to12.5kA at 350\u03bcs.\r\n\r\nAs comparison, 8\/20\u03bcs waveform is a surge which reaches peak value at 8\u03bcs and reduces to half of peak current at 20\u03bcs. Take BR-40 type 2 SPD as an example, this product was tested at waveform which reach 40kA in 8\u03bcs which reduces to 20kA at 20\u03bcs.\r\n\r\nAs you can see from the above picture, 8\/20\u03bcs waveform has much shorter time than the 10\/350\u03bcs waveform. As energy equals to current square multiplied by resistor and time (E=I<sup>2<\/sup>Rt) and the time difference between the two wave is very big, therefore, a type 1 25kA SPD can discharge much more energy than a type 2 40kA SPD."},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/ru\/wp-json\/wp\/v2\/blog\/788","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/ru\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/ru\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/ru\/wp-json\/wp\/v2\/media\/789"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/ru\/wp-json\/wp\/v2\/media?parent=788"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/ru\/wp-json\/wp\/v2\/blog_category?post=788"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}