Michael Liu’s Post

DOUBTS IN THE INTERPRETATION OF IEC STANDARDS? Post here and I write my interpretation. Standards sometimes are confusing. An example is IEC614391/2. A revision of Table 6 for temperature rise limits could make it understandable by testing labs like IEC62271-1 is. Also, a figure showing the intended test circuit should be included. No lab I know understand the circuit to use * (one source? many sources?) (*) . If you have a doubt about any IEC standard part post it here with sufficient information.  ( * ) article link https://lnkd.in/dHbQzHy3 ** #training #electryindustry #IEC62271 #IEC61439 #iec61641 #switchgear #switchboard #iec60943 #ul #iec #ieee #ansi #copper #aluminum #substation #bysergiofeitozacosta

WHY IEC ( Iternational Electrotechnical Commission) have accepted UNSAFE Standard IEC 62784 Final Version The Authors SC IEC 6IJ makeup this Standard Only to be acepted in North America Sponsored by IEC TC31 for a National Deviation This Standard Can Not be Nodified or Changed in Any Form MUST BE ACEPTED OR REJECTED IN IS ORIGINAL VERSION Page -8- 4.2 Note 1 2) Switch, Cord and Plug and Note 2 5) Universal Motors ARE NOT PERMITTED and others Unsafe references ONLY THE AUTHORS OF SC IEC 62784 Can Change this Useless Proposal - No Body Else

💭 Is your industrial power supply standard outdated? In this paper, we unveil the impact of evolving regulations on industrial equipment and the critical shift from IEC 60950-1 to IEC 61010 for power supply safety. 🌟 Download now and discover: - Why legacy standards are no longer sufficient. - The rise of IEC 61010 and its implications for control equipment. - How international harmonization efforts are streamlining product approvals. ✅ Ensure your industrial applications meet the latest safety requirements! #PhoenixContact #PowerSupplies #SafetyStandards #IndustrialAutomation

Mooie whitepaper over de normering omtrent power supllies. #elektro #elektrotechniek #paneelbouw #oem #machinebouw #industrie

🔍 Struggling to understand the reasoning behind decisions in international standards? Then you might find the new IEC Technical Report 60099-10 incredibly useful! 📘✨ After several years of dedicated work, we’ve compiled and formatted all the knowledge behind setting up type tests for surge arresters >1kV. Surge Arresters - Part 10: Rationale for Tests Specified by IEC 60099-4:2014 🔹 What's inside? IEC TR 60099-10:2024 applies to all tests and arrester types included in IEC 60099-4:2014. It explains the rationale behind each test specified in that document. 🔹 Important Note: This document does not contain requirements and is not intended to replace any clauses of IEC 60099-4:2014. Discover more and preview the document here: https://lnkd.in/d_UDw8Dg 👉 Have you had challenges with understanding these standards? Share your thoughts or questions in the comments below! #SurgeArresters #IECStandards #ElectricalEngineering #TechReport #IndustryUpdate IEC (International Electrotechnical Commission)

IEC 61439 standard follows the philosophy of IEC 60947 series i.e. IEC 61439-1 is ‘General Rules’ standard to be referred to by subsidiary product parts of IEC 61439 series. The IEC 60439 standards were ambiguous about how to assess compliance of partially type tested assemblies. As a result manufacturers and testing bodies often treated partially type-tested assemblies differently. One of the main features of IEC 61439-1 is that the discrimination between Type Tested Assemblies (TTA) and Partially Type Tested Assemblies (PTTA) has been eliminated by the verification approach.

Stay Ahead with the Latest Standards: Discover the Fourth Edition of IEC 62368-1! Are you a manufacturer or compliance professional striving to stay updated with the latest standards? Then you need to know about the newly released fourth edition of the hazard-based standard IEC 62368-1, launched on May 26, 2023. Additionally, the European version, EN 62368-1:2024 + A11:2024, was published on April 19, 2024, and is expected to be cited in the official journal soon. The North American equivalent is anticipated in late 2024 or early 2025. The fourth edition of IEC 62368-1 introduces significant updates from the third edition, including: 1.     Component Certification Changes: Components/parts certified under IEC 60065 / IEC 60950-1 will no longer be accepted. Existing components certified under these old s tandards will need retesting or new certification documentation to comply with the fourth edition. 2.     Coin/Button Cell Battery Requirements: Revised requirements for equipment containing coin or button cell batteries (clause 4.8). 3.     Fire Enclosure Adjustments: Updated requirements for bottom and side openings in fire enclosures. 4.     Wireless Power Transmitter Revisions: Enhanced requirements for wireless power transmitters. 5.     Secondary Lithium Battery Modifications: Expanded scope to include devices with non-portable lithium batteries, removing the "portable battery only" reference (clause M.4). Do not miss these critical updates!  Contact us to learn more about the IEC 62368-1:2023 standard. Our technical experts are ready to provide professional and accurate interpretations, helping you integrate and comply with the new requirements early in your product development and upgrade stages. Ensure your products meet global standards and successfully enter international markets! Contact us at: mail@hermonlabs.com, 04-6268401

Understanding Changes in IEC 61439-1/2: Edition 2 vs. Edition 3 Curious about the differences between Edition 2 and Edition 3 of the IEC 61439-1/2 standards? This detailed webinar covers the key updates and their implications for design verification and testing. 🎥 Watch now: https://lnkd.in/ghg2JGqt #IEC61439 #StandardsUpdate #Compliance #ElectricalEngineering #LowVoltageSwitchgear #controlgear #IECStandards #testing #LowVoltage #Switchgear #Switchboards #LVPanels #IEC61439_2 #designverification

Maximized transfer switch lifespan begins with choosing the right enclosure! Read the ASCO White paper on UL50 enclosures for IEC 60529 applications to learn the following: ✅ Key standards for transfer switch enclosures ✅ Differences between essential standards ✅ Application notes Learn more. http://spr.ly/6042U4dIn #ElectricalSafety #FacilityEngineering #IndustryStandard #IEC

Ok IEC (International Electrotechnical Commission) you are stating IP means ingress protection but Institution of Engineering and Technology (IET) in BS7671 (p48 abbreviations) state it means international protection Please can someone finally clarify what IP stands for? Is IEC correct or is IET and bs7671 correct ? It’s a real debate as we all go by BS7671 but who is correct?