{"id":17503,"date":"2026-01-14T14:33:58","date_gmt":"2026-01-14T14:33:58","guid":{"rendered":"https:\/\/www.c2psu.com\/?p=17503"},"modified":"2026-01-14T14:34:02","modified_gmt":"2026-01-14T14:34:02","slug":"difference-between-iec-60950-1-and-iec-62368-1-the-evolution-of-safety-standards","status":"publish","type":"post","link":"https:\/\/www.c2psu.com\/zh\/difference-between-iec-60950-1-and-iec-62368-1-the-evolution-of-safety-standards\/","title":{"rendered":"Difference Between IEC 60950-1 and IEC 62368-1: The Evolution of Safety Standards"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-executive-summary\">Executive Summary<\/h2>\n\n\n\n<p>IEC 60950-1 (Information Technology Equipment Safety) and IEC 62368-1 (Audio\/Video, Information and Communication Technology Equipment) represent two generations of safety standards with fundamentally different approaches. While IEC 60950-1 was the long-standing standard for IT equipment,&nbsp;<strong>IEC 62368-1 is now the mandatory replacement<\/strong>&nbsp;that takes a more comprehensive, hazard-based approach to product safety.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-key-timeline-and-transition\">Key Timeline and Transition<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IEC 60950-1<\/strong>: Published in 1999, with multiple amendments through 2014<\/li>\n\n\n\n<li><strong>IEC 62368-1<\/strong>: First published in 2010, with current 3rd edition (2018) being mandatory<\/li>\n\n\n\n<li><strong>Transition Deadline<\/strong>: Most regions completed transition by December 2020<\/li>\n\n\n\n<li><strong>Current Status<\/strong>: IEC 60950-1 is\u00a0<strong>officially withdrawn<\/strong>\u00a0and replaced globally<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-fundamental-philosophical-differences\">Fundamental Philosophical Differences<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-iec-60950-1-prescriptive-rules-based-approach\">IEC 60950-1: Prescriptive &#8220;Rules-Based&#8221; Approach<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Methodology<\/strong>: Traditional, prescriptive requirements<\/li>\n\n\n\n<li><strong>Focus<\/strong>: Specific safeguards against known hazards<\/li>\n\n\n\n<li><strong>Structure<\/strong>: Detailed &#8220;how-to&#8221; instructions for compliance<\/li>\n\n\n\n<li><strong>Limitation<\/strong>: Reactive to existing technologies rather than anticipating new ones<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-iec-62368-1-modern-hazard-based-approach\">IEC 62368-1: Modern &#8220;Hazard-Based&#8221; Approach<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Methodology<\/strong>: Hazard-based safety engineering (HBSE)<\/li>\n\n\n\n<li><strong>Focus<\/strong>: Identifying energy sources and preventing injury<\/li>\n\n\n\n<li><strong>Structure<\/strong>: Principles-based framework adaptable to new technologies<\/li>\n\n\n\n<li><strong>Advantage<\/strong>: Proactive, technology-agnostic, and future-proof<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-three-energy-source-classes-iec-62368-1\">Three Energy Source Classes (IEC 62368-1)<\/h2>\n\n\n\n<p>The new standard categorizes potential hazards into three classes:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Class 1 Energy Sources<\/strong>\n<ul class=\"wp-block-list\">\n<li>Not likely to cause pain or injury<\/li>\n\n\n\n<li>Example: Low-voltage circuits (&lt; 30V RMS, &lt; 42.4V peak)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Class 2 Energy Sources<\/strong>\n<ul class=\"wp-block-list\">\n<li>May cause discomfort but not injury<\/li>\n\n\n\n<li>Example: Higher voltage but limited energy circuits<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Class 3 Energy Sources<\/strong>\n<ul class=\"wp-block-list\">\n<li>Likely to cause injury<\/li>\n\n\n\n<li>Example: Mains power, high-voltage batteries<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-key-technical-differences\">Key Technical Differences<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-nbsp-fire-prevention-requirements\">1.&nbsp;<strong>Fire Prevention Requirements<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IEC 60950<\/strong>: Uses detailed construction requirements for fire enclosures<\/li>\n\n\n\n<li><strong>IEC 62368<\/strong>: Implements &#8220;Power Source&#8221; classification with defined limits<\/li>\n\n\n\n<li><strong>Impact<\/strong>: More flexibility in material selection while maintaining safety<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-nbsp-electrical-safety-requirements\">2.&nbsp;<strong>Electrical Safety Requirements<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IEC 60950<\/strong>: Specific spacing requirements (creepage\/clearance)<\/li>\n\n\n\n<li><strong>IEC 62368<\/strong>: Maintains similar spacing but ties them to overvoltage categories<\/li>\n\n\n\n<li><strong>Improvement<\/strong>: Better correlation between insulation and actual working conditions<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-nbsp-battery-safety\">3.&nbsp;<strong>Battery Safety<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IEC 60950<\/strong>: Limited battery safety requirements<\/li>\n\n\n\n<li><strong>IEC 62368<\/strong>: Comprehensive battery safety, including cell, battery pack, and system levels<\/li>\n\n\n\n<li><strong>Significance<\/strong>: Critical for modern portable and wireless devices<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-nbsp-audio-video-equipment-inclusion\">4.&nbsp;<strong>Audio\/Video Equipment Inclusion<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IEC 60950<\/strong>: Primarily IT equipment<\/li>\n\n\n\n<li><strong>IEC 62368<\/strong>: Combines scope of IEC 60950 and IEC 60065 (AV equipment)<\/li>\n\n\n\n<li><strong>Benefit<\/strong>: Single standard for converged technologies<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-testing-and-certification-differences\">Testing and Certification Differences<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-documentation-requirements\">Documentation Requirements<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">IEC 60950-1:           IEC 62368-1:\n\u2022 Technical File       \u2022 Hazard Analysis Report\n\u2022 Test Reports         \u2022 Energy Source Classification\n\u2022 Manuals              \u2022 Protective Measure Documentation\n                       \u2022 Risk Assessment Records<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-safety-protections\">Safety Protections<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IEC 60950<\/strong>: Safeguards classified as &#8220;Basic,&#8221; &#8220;Supplementary,&#8221; or &#8220;Reinforced&#8221;<\/li>\n\n\n\n<li><strong>IEC 62368<\/strong>: Protective measures classified as &#8220;Equipment,&#8221; &#8220;User,&#8221; or &#8220;Skilled Person&#8221; protections<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-transition-impact-on-product-design\">Transition Impact on Product Design<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-design-changes-required\">Design Changes Required<\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Hazard Analysis<\/strong>: Must be formally documented for all new designs<\/li>\n\n\n\n<li><strong>Energy Source Classification<\/strong>: Each potential hazard must be classified<\/li>\n\n\n\n<li><strong>Protective Measures<\/strong>: Must be appropriate for energy class and user type<\/li>\n\n\n\n<li><strong>Instructions<\/strong>: Must be clearer about potential hazards<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-legacy-products\">Legacy Products<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Products certified to IEC 60950 before transition deadlines can continue in production<\/li>\n\n\n\n<li>New designs or significant modifications require IEC 62368-1 certification<\/li>\n\n\n\n<li>Many manufacturers chose to transition existing products for consistency<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-global-regulatory-status\">Global Regulatory Status<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-key-regions-and-deadlines\">Key Regions and Deadlines<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Region<\/th><th class=\"has-text-align-left\" data-align=\"left\">Regulatory Body<\/th><th class=\"has-text-align-left\" data-align=\"left\">Final Transition Deadline<\/th><\/tr><\/thead><tbody><tr><td>European Union<\/td><td>CENELEC<\/td><td>June 20, 2019<\/td><\/tr><tr><td>United States<\/td><td>UL\/ANSI<\/td><td>December 20, 2020<\/td><\/tr><tr><td>\u52a0\u62ff\u5927<\/td><td>SCC<\/td><td>June 20, 2019<\/td><\/tr><tr><td>International<\/td><td>IEC<\/td><td>Officially withdrawn<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-practical-implications-for-manufacturers\">Practical Implications for Manufacturers<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-advantages-of-iec-62368-1\">Advantages of IEC 62368-1<\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Future-Proofing<\/strong>: Adaptable to new technologies (IoT, AI devices, etc.)<\/li>\n\n\n\n<li><strong>Global Harmonization<\/strong>: Single standard for IT and AV equipment worldwide<\/li>\n\n\n\n<li><strong>Risk Management<\/strong>: Systematic approach to safety engineering<\/li>\n\n\n\n<li><strong>Innovation Support<\/strong>: Less prescriptive, more performance-based<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-challenges-during-transition\">Challenges During Transition<\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Retraining<\/strong>: Engineering teams needed education on hazard-based approach<\/li>\n\n\n\n<li><strong>Documentation<\/strong>: More extensive safety analysis required<\/li>\n\n\n\n<li><strong>Testing<\/strong>: Some new test requirements and interpretations<\/li>\n\n\n\n<li><strong>Component Selection<\/strong>: Some components needed re-evaluation<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-industry-best-practices\">Industry Best Practices<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-for-new-product-development\">For New Product Development<\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Start with Hazard Analysis<\/strong>: Identify all energy sources early in design<\/li>\n\n\n\n<li><strong>Document Thoroughly<\/strong>: Maintain complete hazard-based safety engineering records<\/li>\n\n\n\n<li><strong>Consider All User Types<\/strong>: Ordinary persons, instructed persons, and skilled persons<\/li>\n\n\n\n<li><strong>Design for Serviceability<\/strong>: Consider maintenance and repair scenarios<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-for-existing-product-lines\">For Existing Product Lines<\/h3>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Conduct Gap Analysis<\/strong>: Compare current designs against new requirements<\/li>\n\n\n\n<li><strong>Prioritize Transition<\/strong>: Focus on high-volume or newly modified products first<\/li>\n\n\n\n<li><strong>Update Technical Files<\/strong>: Ensure all documentation meets new standard<\/li>\n\n\n\n<li><strong>Communicate with Suppliers<\/strong>: Verify component compliance<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion-why-the-change-matters\">Conclusion: Why the Change Matters<\/h2>\n\n\n\n<p>The transition from IEC 60950-1 to IEC 62368-1 represents more than just regulatory compliance\u2014it reflects the&nbsp;<strong>evolution of safety engineering philosophy<\/strong>:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>From Reactive to Proactive<\/strong>: Anticipating hazards rather than reacting to incidents<\/li>\n\n\n\n<li><strong>From Specific to General<\/strong>: Covering known and emerging technologies<\/li>\n\n\n\n<li><strong>From Prescriptive to Performance-Based<\/strong>: Focusing on safety outcomes rather than specific methods<\/li>\n\n\n\n<li><strong>From Separate to Unified<\/strong>: Combining IT and AV equipment standards<\/li>\n<\/ol>\n\n\n\n<p><strong>For businesses<\/strong>: This means designing safer products that can adapt to technological changes without requiring complete standard overhauls.<\/p>\n\n\n\n<p><strong>For consumers<\/strong>: This results in safer products that have been evaluated using modern risk assessment methodologies.<\/p>\n\n\n\n<p>The complete industry adoption of IEC 62368-1 marks a significant step forward in product safety, creating a flexible framework that will serve the electronics industry for decades to come, regardless of what new technologies emerge.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><em>Note: This information is for educational purposes. Always consult with qualified safety professionals and certification bodies for specific product compliance requirements.<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Executive Summary IEC 60950-1 (Information Technology Equipment Safety) and IEC 62368-1 (Audio\/Video, Information and Communication Technology Equipment) represent two generations of safety standards with fundamentally&#8230;<\/p>","protected":false},"author":2,"featured_media":17505,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","_elementor_edit_mode":"","_elementor_template_type":"","_elementor_data":"","_elementor_page_settings":null,"_elementor_conditions":[]},"categories":[1],"tags":[],"class_list":["post-17503","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"acf":[],"yoast_head":"<!-- This site is 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