{"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\/ar\/blog\/what-is-the-difference-between-10-350%ce%bcs-and-8-20%ce%bcs-waveform\/","title":{"rendered":"\u0645\u0627 \u0647\u0648 \u0627\u0644\u0641\u0631\u0642 \u0628\u064a\u0646 \u0627\u0644\u0634\u0643\u0644 \u0627\u0644\u0645\u0648\u062c\u064a 10\/350\u03bcs \u06488\/20\u03bcs\u061f"},"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) \u0648\u0627\u0644\u0641\u0627\u0631\u0642 \u0627\u0644\u0632\u0645\u0646\u064a \u0628\u064a\u0646 \u0627\u0644\u0645\u0648\u062c\u062a\u064a\u0646 \u0643\u0628\u064a\u0631 \u062c\u062f\u064b\u0627\u060c \u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a\u060c \u064a\u0645\u0643\u0646 \u0644\u0644\u0646\u0648\u0639 1 25kA SPD \u062a\u0641\u0631\u064a\u063a \u0637\u0627\u0642\u0629 \u0623\u0643\u062b\u0631 \u0628\u0643\u062b\u064a\u0631 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 2 40kA SPD.","protected":false},"featured_media":789,"parent":0,"menu_order":164,"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\/ar\/wp-json\/wp\/v2\/blog\/788","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/ar\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/ar\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/ar\/wp-json\/wp\/v2\/media\/789"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/ar\/wp-json\/wp\/v2\/media?parent=788"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/ar\/wp-json\/wp\/v2\/blog_category?post=788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}