{"id":783,"date":"2026-06-23T15:29:49","date_gmt":"2026-06-23T07:29:49","guid":{"rendered":"https:\/\/www.daxin-vacuum.com\/?p=783"},"modified":"2026-06-23T15:29:49","modified_gmt":"2026-06-23T07:29:49","slug":"why-helium-leak-testing-is-essential-for-sf6-rmu-ring-main-unit-manufacturing","status":"publish","type":"post","link":"https:\/\/www.daxin-vacuum.com\/fa\/why-helium-leak-testing-is-essential-for-sf6-rmu-ring-main-unit-manufacturing\/","title":{"rendered":"Why Helium Leak Testing Is Essential for SF6 RMU (Ring Main Unit) Manufacturing"},"content":{"rendered":"<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&amp;]:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"1e91e83c-40c2-4846-af42-a74107434f11\" data-turn-start-message=\"true\" data-message-model-slug=\"gpt-5-5\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\">\n<p data-start=\"85\" data-end=\"492\">In the modern power distribution industry, <strong data-start=\"128\" data-end=\"156\">SF6 RMU (Ring Main Unit)<\/strong> equipment plays a critical role in ensuring stable and safe medium-voltage networks. These gas-insulated switchgears rely on <strong data-start=\"282\" data-end=\"304\">SF6 gas insulation<\/strong>, which provides excellent dielectric strength and arc-quenching capability. However, the long-term reliability of SF6 RMU systems is directly linked to one key factor: <strong data-start=\"473\" data-end=\"491\">leak tightness<\/strong>.<\/p>\n<h3 data-section-id=\"fqhd2x\" data-start=\"494\" data-end=\"539\">The Importance of Leak Testing in SF6 RMU<\/h3>\n<p data-start=\"541\" data-end=\"824\">SF6 is widely used in electrical equipment, with nearly <strong data-start=\"597\" data-end=\"660\">80% of global SF6 consumption applied in the power industry<\/strong>. <br data-start=\"699\" data-end=\"702\" \/><br \/>\nDespite its performance advantages, SF6 is also one of the most potent greenhouse gases. Even minimal leakage can lead to:<\/p>\n<ul data-start=\"826\" data-end=\"924\">\n<li data-section-id=\"b2sso4\" data-start=\"826\" data-end=\"860\">Reduced insulation performance<\/li>\n<li data-section-id=\"mzvywi\" data-start=\"861\" data-end=\"888\">Equipment failure risks<\/li>\n<li data-section-id=\"11ccskn\" data-start=\"889\" data-end=\"924\">Environmental compliance issues<\/li>\n<\/ul>\n<p data-start=\"926\" data-end=\"1137\">According to IEC standards, the allowable leakage rate for gas-insulated equipment is typically <strong data-start=\"1022\" data-end=\"1040\">\u22640.1% per year<\/strong>, emphasizing the need for high-precision leak detection.<\/p>\n<p data-start=\"926\" data-end=\"1137\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-790\" src=\"https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101002_167_16-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101002_167_16-300x225.jpg 300w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101002_167_16-1024x768.jpg 1024w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101002_167_16-768x576.jpg 768w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101002_167_16-1536x1152.jpg 1536w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101002_167_16-2048x1536.jpg 2048w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101002_167_16-16x12.jpg 16w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<h3 data-section-id=\"z8f1dz\" data-start=\"1139\" data-end=\"1191\">Why Helium Leak Testing Is the Industry Standard<\/h3>\n<p data-start=\"1193\" data-end=\"1426\">Traditional methods such as pressure decay or bubble testing are no longer sufficient for high-performance sealed products like RMU cabinets. Instead, <strong data-start=\"1344\" data-end=\"1391\">helium leak testing (helium leak detection)<\/strong> has become the preferred solution.<\/p>\n<p data-start=\"1428\" data-end=\"1461\">Helium offers several advantages:<\/p>\n<ul data-start=\"1463\" data-end=\"1678\">\n<li data-section-id=\"190pg8d\" data-start=\"1463\" data-end=\"1516\">Extremely small atomic size \u2192 detects micro-leaks<\/li>\n<li data-section-id=\"th6r1b\" data-start=\"1517\" data-end=\"1566\">Chemically inert \u2192 safe and non-contaminating<\/li>\n<li data-section-id=\"1lz0jik\" data-start=\"1567\" data-end=\"1678\">\u0989\u099a\u09cd\u099a sensitivity \u2192 detection limits up to <strong data-start=\"1611\" data-end=\"1638\">10\u207b\u2079 mbar\u00b7L\/s or better<\/strong><\/li>\n<\/ul>\n<p data-start=\"1680\" data-end=\"1908\">In industrial practice, <strong data-start=\"1704\" data-end=\"1745\">helium mass spectrometer leak testing<\/strong> can achieve sensitivity levels as low as <strong data-start=\"1787\" data-end=\"1805\">10\u207b\u00b9\u00b2 mbar\u00b7L\/s<\/strong>, ensuring zero-defect quality in sealed electrical enclosures.<\/p>\n<h3 data-section-id=\"1cnvado\" data-start=\"1910\" data-end=\"1953\">Application in SF6 RMU Production Lines<\/h3>\n<p data-start=\"1955\" data-end=\"2101\">For manufacturers of <strong data-start=\"1976\" data-end=\"1987\">SF6 RMU<\/strong>, gas tanks and sealed compartments must undergo strict leak testing during production. Typical solutions include:<\/p>\n<ul data-start=\"2103\" data-end=\"2226\">\n<li data-section-id=\"amt86e\" data-start=\"2103\" data-end=\"2141\">\u0622\u0632\u0645\u0627\u06cc\u0634 \u0646\u0634\u062a\u06cc \u0647\u0644\u06cc\u0648\u0645 \u0645\u062d\u0641\u0638\u0647 \u062e\u0644\u0627\u0621<\/li>\n<li data-section-id=\"lmhefj\" data-start=\"2142\" data-end=\"2188\">Helium pressurization + external detection<\/li>\n<li data-section-id=\"p41quz\" data-start=\"2189\" data-end=\"2226\">Automated helium recovery systems<\/li>\n<\/ul>\n<p data-start=\"2228\" data-end=\"2374\">These systems are often integrated into <strong data-start=\"2268\" data-end=\"2311\">dual-station or inline production lines<\/strong>, improving efficiency and ensuring repeatable quality control.<\/p>\n<p data-start=\"2228\" data-end=\"2374\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-789\" src=\"https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101001_166_16-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101001_166_16-300x225.jpg 300w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101001_166_16-1024x768.jpg 1024w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101001_166_16-768x576.jpg 768w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101001_166_16-1536x1152.jpg 1536w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101001_166_16-2048x1536.jpg 2048w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218101001_166_16-16x12.jpg 16w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<h3 data-section-id=\"sfygqx\" data-start=\"2376\" data-end=\"2438\">Industry Trend: From Compliance to Precision Manufacturing<\/h3>\n<p data-start=\"2440\" data-end=\"2641\">With stricter environmental regulations and increasing demand for high-reliability power equipment, helium leak testing is no longer optional\u2014it is becoming a <strong data-start=\"2599\" data-end=\"2640\">standard process in RMU manufacturing<\/strong>.<\/p>\n<p data-start=\"2643\" data-end=\"2807\">\u062f\u0631 <span class=\"\" data-state=\"closed\"><a class=\"decorated-link\" href=\"https:\/\/www.daxin-vacuum.com\/fa\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">\u0648\u06a9\u06cc\u0648\u0645 \u062f\u0627\u06a9\u0633\u06cc\u0646<\/a><\/span>, we specialize in advanced <strong data-start=\"2711\" data-end=\"2742\">helium leak testing systems<\/strong> designed for SF6 gas-insulated equipment. Our solutions support:<\/p>\n<ul data-start=\"2809\" data-end=\"2918\">\n<li data-section-id=\"dmbl2h\" data-start=\"2809\" data-end=\"2839\">\u062a\u0634\u062e\u06cc\u0635 \u0628\u0627 \u062d\u0633\u0627\u0633\u06cc\u062a \u0628\u0627\u0644\u0627<\/li>\n<li data-section-id=\"1unuvz7\" data-start=\"2840\" data-end=\"2876\">Automated production integration<\/li>\n<li data-section-id=\"1y2p46y\" data-start=\"2877\" data-end=\"2918\">Helium recovery and cost optimization<\/li>\n<\/ul>\n<h3 data-section-id=\"1079bb9\" data-start=\"2920\" data-end=\"2934\">\u0646\u062a\u06cc\u062c\u0647<\/h3>\n<p data-start=\"2936\" data-end=\"3218\">As the power industry continues to evolve, ensuring the sealing integrity of <strong data-start=\"3013\" data-end=\"3032\">SF6 RMU systems<\/strong> is essential for both performance and sustainability. <strong data-start=\"3087\" data-end=\"3110\">Helium leak testing<\/strong> provides the precision, reliability, and compliance required for modern electrical equipment manufacturing.<\/p>\n<p data-start=\"3220\" data-end=\"3408\" data-is-last-node=\"\" data-is-only-node=\"\">For companies aiming to upgrade from conventional leak testing to high-end <strong data-start=\"3295\" data-end=\"3320\">\u062a\u0634\u062e\u06cc\u0635 \u0646\u0634\u062a \u0647\u0644\u06cc\u0648\u0645<\/strong>, now is the time to adopt advanced solutions and stay competitive in the global market.<\/p>\n<p data-start=\"3220\" data-end=\"3408\" data-is-last-node=\"\" data-is-only-node=\"\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-784\" src=\"https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218100850_160_16-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218100850_160_16-300x225.jpg 300w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218100850_160_16-1024x768.jpg 1024w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218100850_160_16-768x576.jpg 768w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218100850_160_16-1536x1152.jpg 1536w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218100850_160_16-2048x1536.jpg 2048w, https:\/\/ljcloudglobal.oss-cn-hongkong.aliyuncs.com\/wp-content\/uploads\/daxin\/2026\/06\/\u5fae\u4fe1\u56fe\u7247_20251218100850_160_16-16x12.jpg 16w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"z-0 flex min-h-[46px] justify-start\">\u00a0<\/div>\n<div class=\"pointer-events-none -mb-px h-px w-full opacity-0\" aria-hidden=\"true\" data-testid=\"bazaar-action-bar-observer\">\u00a0<\/div>","protected":false},"excerpt":{"rendered":"<p>In the modern power distribution industry, SF6 RMU (Ring Main Unit) equipment plays a critical role in ensuring stable and safe medium-voltage networks. These gas-insulated switchgears rely on SF6 gas insulation, which provides excellent dielectric strength and arc-quenching capability. However, the long-term reliability of SF6 RMU systems is directly linked to one key factor: leak [&hellip;]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[9],"tags":[],"_links":{"self":[{"href":"https:\/\/www.daxin-vacuum.com\/fa\/wp-json\/wp\/v2\/posts\/783"}],"collection":[{"href":"https:\/\/www.daxin-vacuum.com\/fa\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.daxin-vacuum.com\/fa\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.daxin-vacuum.com\/fa\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.daxin-vacuum.com\/fa\/wp-json\/wp\/v2\/comments?post=783"}],"version-history":[{"count":1,"href":"https:\/\/www.daxin-vacuum.com\/fa\/wp-json\/wp\/v2\/posts\/783\/revisions"}],"predecessor-version":[{"id":791,"href":"https:\/\/www.daxin-vacuum.com\/fa\/wp-json\/wp\/v2\/posts\/783\/revisions\/791"}],"wp:attachment":[{"href":"https:\/\/www.daxin-vacuum.com\/fa\/wp-json\/wp\/v2\/media?parent=783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.daxin-vacuum.com\/fa\/wp-json\/wp\/v2\/categories?post=783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.daxin-vacuum.com\/fa\/wp-json\/wp\/v2\/tags?post=783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}