{"id":1213,"date":"2026-07-20T16:49:49","date_gmt":"2026-07-20T16:49:49","guid":{"rendered":"https:\/\/benlongkj.com\/?p=1213"},"modified":"2026-07-20T16:49:55","modified_gmt":"2026-07-20T16:49:55","slug":"mccb-testing-equipment-a-technical-guide-for-laboratories","status":"publish","type":"post","link":"https:\/\/benlongkj.com\/ar\/blog\/mccb-testing-equipment-a-technical-guide-for-laboratories\/","title":{"rendered":"\u0645\u0639\u062f\u0627\u062a \u0627\u062e\u062a\u0628\u0627\u0631 MCCB: \u062f\u0644\u064a\u0644 \u062a\u0642\u0646\u064a \u0644\u0644\u0645\u062e\u062a\u0628\u0631\u0627\u062a"},"content":{"rendered":"<p>\u0641\u064a \u0639\u0627\u0645 2024\u060c \u0623\u0631\u0633\u0644 \u0645\u0635\u0646\u0639 \u0642\u0648\u0627\u0637\u0639 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0630\u0627\u062a \u0627\u0644\u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u0635\u0628\u0648\u0628\u0629 \u0627\u0644\u0645\u0648\u062c\u0648\u062f \u0641\u064a \u062c\u0646\u0648\u0628 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\u0627\u0639\u062a\u0645\u0627\u062f\u064b\u0627 \u0639\u0644\u0649 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0643\u0644\u064a\u0629\u060c \u0628\u0645\u0627 \u0641\u064a \u0630\u0644\u0643 \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u063a\u0631\u0641\u0629. \u0633\u064a\u0642\u0648\u0645 \u0642\u0627\u0637\u0639 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0627\u0644\u0630\u064a \u064a\u0646\u0638\u0645 \u0646\u0642\u0637\u0629 \u0631\u062d\u0644\u062a\u0647 \u0648\u0641\u0642\u064b\u0627 \u0644\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0628\u064a\u0626\u064a\u0629 \u0645\u0631\u062c\u0639\u064a\u0629 \u062a\u0628\u0644\u063a 40 \u062f\u0631\u062c\u0629 \u0628\u0627\u0644\u0631\u062d\u064a\u0644 \u0639\u0646\u062f \u0642\u064a\u0645\u0629 \u062a\u064a\u0627\u0631 \u0623\u0639\u0644\u0649 \u0641\u064a \u0628\u064a\u0626\u0629 \u0630\u0627\u062a \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0628\u064a\u0626\u064a\u0629 \u062a\u0628\u0644\u063a 20 \u062f\u0631\u062c\u0629. \u0644\u0630\u0644\u0643\u060c \u064a\u062a\u0645 \u0625\u0646\u0634\u0627\u0621 \u0638\u0631\u0648\u0641 \u0645\u062e\u062a\u0628\u0631 \u062e\u0627\u0635\u0629 \u0644\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u063a\u0631\u0641\u0629 \u0644\u0623\u0646\u0647 \u0628\u062f\u0648\u0646\u0647\u0627 \u0644\u0646 \u062a\u0643\u0648\u0646 \u0647\u0646\u0627\u0643 \u0645\u0642\u0627\u0631\u0646\u0627\u062a \u0641\u064a \u0646\u062a\u0627\u0626\u062c \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631.<\/p>\n<h3>\u0647\u0644 \u064a\u062c\u0628 \u0639\u0644\u0649 \u0627\u0644\u0645\u062e\u062a\u0628\u0631 \u0634\u0631\u0627\u0621 \u0645\u0646\u0635\u0627\u062a \u0627\u062e\u062a\u0628\u0627\u0631 \u0645\u0646\u0641\u0635\u0644\u0629 \u0623\u0645 \u0645\u0646\u0635\u0629 \u0627\u062e\u062a\u0628\u0627\u0631 \u0645\u062a\u0643\u0627\u0645\u0644\u0629\u061f<\/h3>\n<p>\u0627\u0644\u0645\u0646\u0635\u0627\u062a \u0627\u0644\u0645\u0633\u062a\u0642\u0644\u0629 \u0645\u0646\u0627\u0633\u0628\u0629 \u0644\u0645\u062e\u062a\u0628\u0631\u0627\u062a \u0627\u0644\u062a\u0637\u0648\u064a\u0631 \u0627\u0644\u062a\u064a \u062a\u062a\u0637\u0644\u0628 \u0648\u0635\u0648\u0644\u0627\u064b \u0643\u0627\u0645\u0644\u0627\u064b \u0625\u0644\u0649 \u0627\u0644\u0645\u0639\u0644\u0645\u0627\u062a \u0648\u0625\u062c\u0631\u0627\u0621 \u0627\u062e\u062a\u0628\u0627\u0631\u0627\u062a \u0645\u062a\u0646\u0648\u0639\u0629 \u0641\u064a \u0648\u0642\u062a \u0648\u0627\u062d\u062f. \u0627\u0644\u0645\u0646\u0635\u0629 \u0627\u0644\u0645\u062a\u0643\u0627\u0645\u0644\u0629 \u0627\u0644\u062a\u064a \u062a\u0634\u0645\u0644 \u0627\u0644\u0631\u062d\u0644\u0629 \u0627\u0644\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a\u0629\u060c \u0648\u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629\u060c \u0648\u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629 \u0627\u0644\u0637\u0648\u064a\u0644\u0629 \u0645\u062e\u0635\u0635\u0629 \u0644\u0644\u0645\u062e\u062a\u0628\u0631\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u0643\u0648\u0646 \u0641\u064a\u0647\u0627 \u0643\u0645\u064a\u0629 \u0627\u0644\u062a\u062d\u0642\u0642 \u0627\u0644\u0645\u0646\u062a\u0638\u0645\u060c \u0648\u0627\u0644\u0645\u0633\u0627\u062d\u0629 \u0627\u0644\u0645\u062a\u0627\u062d\u0629 \u0641\u064a \u0627\u0644\u0645\u0628\u0646\u0649\u060c \u0648\u0642\u0627\u0628\u0644\u064a\u0629 \u062a\u062a\u0628\u0639 \u0627\u0644\u0646\u062a\u0627\u0626\u062c \u0627\u0644\u0641\u0631\u062f\u064a\u0629 \u0623\u0643\u062b\u0631 \u0623\u0647\u0645\u064a\u0629 \u0645\u0646 \u0623\u064a \u0634\u064a\u0621 \u0622\u062e\u0631. \u062a\u0645\u062a\u0644\u0643 \u0627\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0627\u0644\u0634\u0631\u0643\u0627\u062a \u0643\u0644\u0627 \u0627\u0644\u0625\u0639\u062f\u0627\u062f\u064a\u0646 \u0627\u0644\u0645\u062a\u0627\u062d\u064a\u0646 \u0644\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645: \u0645\u0646\u0635\u0627\u062a \u0641\u0631\u062f\u064a\u0629 \u0645\u0631\u0646\u0629 \u0641\u064a \u0627\u0644\u0628\u062d\u062b \u0648\u0627\u0644\u062a\u0637\u0648\u064a\u0631\u060c \u0648\u0625\u0639\u062f\u0627\u062f\u0627\u062a \u0645\u062a\u0643\u0627\u0645\u0644\u0629 \u0644\u0644\u062a\u062d\u0642\u0642 \u0648\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u062a\u062f\u0642\u064a\u0642.<\/p>\n<h2>\u0645\u0631\u0627\u062c\u0639<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.iec.ch\" target=\"_blank\" rel=\"noopener\">IEC \u2014 \u0627\u0644\u0644\u062c\u0646\u0629 \u0627\u0644\u0643\u0647\u0631\u0648\u062a\u0642\u0646\u064a\u0629 \u0627\u0644\u062f\u0648\u0644\u064a\u0629<\/a>. \u0646\u0627\u0634\u0631 IEC 60947-2\u060c \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0627\u0644\u062f\u0648\u0644\u064a \u0644\u0645\u0646\u062a\u062c\u0627\u062a \u0642\u0648\u0627\u0637\u0639 \u0627\u0644\u062f\u0627\u0626\u0631\u0629\u060c \u0627\u0644\u0630\u064a \u064a\u062d\u062f\u062f \u0646\u0638\u0627\u0645 \u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0646\u0648\u0639 \u0648\u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0631\u0648\u062a\u064a\u0646\u064a \u0627\u0644\u0645\u0634\u0627\u0631 \u0625\u0644\u064a\u0647 \u0641\u064a \u062c\u0645\u064a\u0639 \u0623\u0646\u062d\u0627\u0621 \u0647\u0630\u0647 \u0627\u0644\u0645\u0642\u0627\u0644\u0629.<\/li>\n<li><a href=\"https:\/\/www.ul.com\" target=\"_blank\" rel=\"noopener\">UL \u2014 \u0645\u0639\u064a\u0627\u0631 UL 489 \u0644\u0645\u0641\u0627\u062a\u064a\u062d \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0627\u0644\u0645\u0635\u0628\u0648\u0628\u0629<\/a>. \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0627\u0644\u0623\u0645\u0631\u064a\u0643\u064a \u0644\u0644\u0633\u0644\u0627\u0645\u0629 \u0627\u0644\u0630\u064a \u064a\u063a\u0637\u064a \u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0628\u0646\u0627\u0621 \u0648\u0627\u062e\u062a\u0628\u0627\u0631 MCCB.<\/li>\n<li><a href=\"https:\/\/www.nema.org\" target=\"_blank\" rel=\"noopener\">NEMA \u2014 \u0625\u0631\u0634\u0627\u062f\u0627\u062a AB 4 \u0644\u0644\u062a\u0641\u062a\u064a\u0634 \u0648\u0627\u0644\u0635\u064a\u0627\u0646\u0629 \u0627\u0644\u0648\u0642\u0627\u0626\u064a\u0629 \u0644\u0645\u0641\u0627\u062a\u064a\u062d \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0627\u0644\u0645\u0635\u0628\u0648\u0628\u0629<\/a>. \u0625\u0631\u0634\u0627\u062f\u0627\u062a \u0627\u062e\u062a\u0628\u0627\u0631 \u0645\u064a\u062f\u0627\u0646\u064a\u0629 \u062a\u064f\u0633\u062a\u062e\u062f\u0645 \u0639\u0644\u0649 \u0646\u0637\u0627\u0642 \u0648\u0627\u0633\u0639 \u0644\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 MCCBs \u0641\u064a \u0627\u0644\u062e\u062f\u0645\u0629\u060c \u0628\u0645\u0627 \u0641\u064a \u0630\u0644\u0643 \u0625\u062c\u0631\u0627\u0621\u0627\u062a \u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0646\u062e\u0641\u0627\u0636 \u0627\u0644\u0645\u0644\u064a \u0641\u0648\u0644\u062a \u0648\u0627\u0644\u0631\u062d\u0644\u0629.<\/li>\n<li><a href=\"https:\/\/www.ieee.org\" target=\"_blank\" rel=\"noopener\">IEEE \u2014 \u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0648\u0627\u0644\u0628\u062d\u0648\u062b \u062d\u0648\u0644 \u062d\u0645\u0627\u064a\u0629 \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0630\u0627\u062a \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u0646\u062e\u0641\u0636<\/a>. \u0627\u0644\u0623\u062f\u0628\u064a\u0627\u062a \u0627\u0644\u0641\u0646\u064a\u0629 \u062d\u0648\u0644 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0623\u062f\u0627\u0621 \u0642\u0648\u0627\u0637\u0639 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0648\u0645\u0646\u0647\u062c\u064a\u0629 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631.<\/li>\n<\/ul>\n<p>\u062a\u062d\u062f\u064a\u062f <strong>\u0645\u0639\u062f\u0627\u062a \u0627\u062e\u062a\u0628\u0627\u0631 MCCB<\/strong> \u0647\u0648 \u0641\u064a \u0627\u0644\u0646\u0647\u0627\u064a\u0629 \u062a\u0645\u0631\u064a\u0646 \u0641\u064a \u0627\u0644\u0642\u064a\u0627\u0633\u060c \u0648\u0644\u064a\u0633 \u0641\u064a \u0627\u0644\u0622\u0644\u0627\u062a. \u0633\u062a\u062d\u062f\u062f \u0641\u0626\u0629 \u062f\u0642\u0629 \u0645\u0635\u062f\u0631 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631\u060c \u0648\u062f\u0642\u0629 \u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u0648\u0642\u064a\u062a\u060c \u0648\u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u063a\u0631\u0641\u0629 \u0627\u0644\u062a\u064a \u064a\u062a\u0645 \u0641\u064a\u0647\u0627 \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629\u060c \u0648\u0645\u0633\u062a\u0648\u0649 \u062a\u0643\u0631\u0627\u0631 \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u0646\u062a\u062c\u0629 \u0645\u0646\u0627\u0633\u0628\u0629 \u0644\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0642\u0628\u0644 \u0647\u064a\u0626\u0629 \u0627\u0644\u0634\u0647\u0627\u062f\u0627\u062a. \u064a\u0648\u0641\u0631 \u0645\u0647\u0646\u062f\u0633\u0648 \u0627\u0644\u062a\u0637\u0648\u064a\u0631 \u0627\u0644\u0630\u064a\u0646 \u064a\u0636\u0639\u0648\u0646 \u0647\u0630\u0647 \u0627\u0644\u0623\u0631\u0642\u0627\u0645 \u0641\u064a \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0642\u0633\u0645 \u0627\u0644\u0634\u0631\u0627\u0621 \u0628\u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u062a\u064a \u064a\u0645\u0643\u0646 \u062a\u0628\u0631\u064a\u0631\u0647\u0627 \u062e\u0644\u0627\u0644 \u0643\u0644 \u062a\u062d\u0642\u0642. \u062a\u0635\u0646\u0639 Benlong Automation \u0637\u0627\u0648\u0644\u0627\u062a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629\u060c \u0648\u0645\u062d\u0637\u0627\u062a \u0627\u0644\u0631\u062d\u0644\u0629 \u0627\u0644\u0645\u063a\u0646\u0627\u0637\u064a\u0633\u064a\u0629\u060c \u0648\u0637\u0627\u0648\u0644\u0627\u062a \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0627\u0644\u0645\u062a\u0643\u0627\u0645\u0644\u0629 \u0644\u0642\u0648\u0627\u0637\u0639 \u0627\u0644\u062f\u0627\u0626\u0631\u0629 \u0639\u0644\u0649 \u0647\u0630\u0627 \u0627\u0644\u0645\u0628\u062f\u0623\u060c \u0648\u0628\u0627\u0644\u062a\u0627\u0644\u064a \u0636\u0645\u0646\u062a \u0623\u0646 \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0627\u0644\u062a\u064a \u062a\u0624\u062f\u064a \u0648\u0638\u0627\u0626\u0641\u0647\u0627 \u064a\u062c\u0628 \u0623\u0646 \u062a\u0644\u0628\u064a \u0645\u0639\u0627\u064a\u064a\u0631 \u0623\u0639\u0644\u0649 \u0645\u0646 \u0627\u0644\u0642\u0627\u0637\u0639 \u0646\u0641\u0633\u0647.<\/p>","protected":false},"excerpt":{"rendered":"<p>In 2024, a molded case circuit breaker manufacturer located in Southeast Asia sent a new series of 250 A molded case circuit breaker to an independent testing laboratory for the IEC 60947-2 type test. The tests failed the temperature-rise test at the rated current. The engineering team was perplexed since the same circuit breakers had [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1214,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1213","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/benlongkj.com\/ar\/wp-json\/wp\/v2\/posts\/1213","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/benlongkj.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/benlongkj.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/benlongkj.com\/ar\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/benlongkj.com\/ar\/wp-json\/wp\/v2\/comments?post=1213"}],"version-history":[{"count":2,"href":"https:\/\/benlongkj.com\/ar\/wp-json\/wp\/v2\/posts\/1213\/revisions"}],"predecessor-version":[{"id":1229,"href":"https:\/\/benlongkj.com\/ar\/wp-json\/wp\/v2\/posts\/1213\/revisions\/1229"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/benlongkj.com\/ar\/wp-json\/wp\/v2\/media\/1214"}],"wp:attachment":[{"href":"https:\/\/benlongkj.com\/ar\/wp-json\/wp\/v2\/media?parent=1213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/benlongkj.com\/ar\/wp-json\/wp\/v2\/categories?post=1213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/benlongkj.com\/ar\/wp-json\/wp\/v2\/tags?post=1213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}