As the world grapples with the dual challenge of energy security and climate change, fossil-fired steam power stations remain a cornerstone of global electricity generation despite the rapid expansion of renewables. IEC 62140, published by the International Electrotechnical Commission under…

In nuclear power plants, instrumentation and control (I&C) systems are classified into safety categories based on their importance to safety. IEC 62141 provides the software lifecycle and verification requirements specifically for computer-based systems performing category B safety functions. These are…

Lightning strikes pose one of the most severe natural threats to buildings, industrial facilities, and critical infrastructure. An effective lightning protection system (LPS) is only as strong as its individual components — air terminals, down conductors, earth electrodes, and connecting…

Modern railway operations depend critically on the reliable functioning of onboard signalling and telecommunications equipment. Unlike passenger comfort systems or traction drives, signalling and communication systems must maintain functionality under the most extreme environmental conditions a train can encounter —…

International Standard | Edition 1.0 | Published 2009-06 | TC 86/SC 86B 📋 Introduction and Scope IEC 62134-1:2009 provides a comprehensive framework for the reliability assessment of fibre optic interconnecting devices and passive components — including connectors, splices, attenuators, couplers,…

International Standard | Edition 2.0 | Published 2015-05 | TC 26 📋 Introduction and Scope IEC 62135-1:2015 specifies safety requirements for the design, manufacture, and installation of resistance welding equipment. This includes spot welding machines, seam welders, projection welders, butt…

International Standard | Edition 1.0 | Published 2009-02 | TC 91 📋 Introduction and Scope IEC 62137-1-4:2009 specifies thermal cycling test methods for evaluating the reliability of solder joints in surface-mount and through-hole electronics assemblies. This standard is part of…

International Standard | Edition 2.0 | Published 2018-07 | SC 45A 📋 Introduction and Scope IEC 62138:2018 specifies software safety requirements for computer-based instrumentation and control (I&C) systems that perform safety category B or C functions in nuclear power plants,…

Technical Report | Edition 1.0 | Published 2004-11 | TC 86/SC 86B 📋 Introduction and Scope IEC TR 62139:2004 provides comprehensive guidelines for reliability qualification testing of fibre optic interconnecting devices and passive components. Published as a Technical Report, this…

IEC 62130Live WorkingHand ToolsElectrical Safety IEC 62130 is a comprehensive multi-part standard published from 2022 onward that defines the construction, performance, and testing requirements for hand tools used in live working environments up to 800 V AC and 1500 V…

Technical Report | Edition 1.0 | Published 2011-10 | TC 104 📋 Introduction and Scope IEC TR 62131-2:2011 is a Technical Report that addresses the environmental conditions of vibration and shock that electrotechnical equipment encounters specifically during transportation. This document…

International Standard | Edition 1.0 | Published 2012-06 | TC 47/SC 47A 📋 Introduction and Scope IEC 62132-8:2012 defines a method for measuring the radiated electromagnetic immunity of integrated circuits (ICs) using the IC stripline technique. This standard is part…

International Standard | Edition 2.0 | Published 2012-12 | TC 21/SC 21A 📋 Introduction and Scope IEC 62133:2012 is the primary international safety standard for portable sealed secondary cells and batteries containing alkaline or other non-acid electrolytes — encompassing both…

IEC 62125:2019Environmental AspectsEcodesignCircular Economy IEC 62125:2019 provides a systematic methodology for identifying and addressing key environmental aspects during the development of electrotechnical product standards. This horizontal standard — applicable across all IEC technical committees — establishes a structured framework for…

IEC 62127:2022UltrasonicsHydrophoneMedical Ultrasound IEC 62127 (Parts 1-3) defines the international standard for the characterization, calibration, and performance requirements of hydrophones used in medical ultrasonic fields up to 40 MHz. As the primary measurement tool for quantifying ultrasound exposure in diagnostic…

IEC 62128Railway EarthingStray CurrentTraction Safety IEC 62128 is the leading international standard for electrical safety, earthing, and return circuits in fixed railway installations. Published in three parts — protective provisions against electric shock (Part 1), stray current protection (Part 2),…

IEC 62129OSA CalibrationOptical MetrologyWavelength Standard IEC 62129 (with Part 1 specifically addressing optical spectrum analyzers) establishes the standardized calibration procedures for wavelength and optical frequency measurement instruments used in fiber-optic telecommunications, spectroscopy, and laser metrology. The standard provides a comprehensive…