IEC - International Electrotechnical Commission

IEC 61800-9-1:2026 specifies the general methodology to energy efficiency standardization for any extended product by using the guidance of the extended product approach (EPA). It enables product committees for driven equipment connected to motor systems (so called extended products) to interface with the relative power losses of the connected motor system (e.g. power drive system) in order to calculate the system energy efficiency for the whole application. This is based on specified calculation models for speed/load profiles, the duty profiles and relative power losses of appropriate torque versus speed operating points. This document is applicable to motor systems operated by a motor starter or by a converter (power drive system). This document does not specify requirements for environmental impact declarations. Power drive systems designed to drive DC motors are not included in the scope of this document. This document is a group energy efficiency publication as defined in IEC Guide 118 with the energy efficiency function to establish a clear and simple system methodology for the comparison of the energy performance of motor systems to help product and system improvement.
This edition includes the following significant technical changes with respect to the previous edition:
a) addition of Annex D - Examples of indexing and evaluation of energy consumption;
b) correction of errors of symbols in several formulas and tables.

IEC 60747-14-12:2026 specifies the performance test methods for CMOS imager-based gas sensors. It includes the terms and definitions, the test environmental conditions, the test system, the test methods, and the test report. This document is applicable to the performance test of both CMOS gas sensors based on lens-free imaging and CMOS gas sensors based on lens imaging.

IEC 62899-202-13:2026 specifies a test pattern as well as resistance and thickness measurement methods for the conductive layer in printed and in-mould-electronics.

IEC 60704-2-7:2026 applies to electrical fans (including their accessories and their component parts) for household and similar use, designed for AC or DC supply.
The motor, the impeller and their housing, if any, form a single unit.
These particular requirements apply to:
– comfort fans (conventional and bladeless),
– table fans,
– pedestal fans,
– ceiling fans,
– wall bracket fans,
– ceiling bracket fans,
– louvre fans,
– tower fans,
– handheld fans,
– neckband fans,
– embedded fans,
– ventilating fans.
This document does not apply to:
– fans that are part of a central ventilation system,
– fans that are part of an appliance (for example cooling fans),
– fans with additional functions (for example heating, humidifying).
This third edition cancels and replaces the second edition published in 2020. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60704-1:2021;
b) scope has been expanded to handheld, neckband and embedded fans;
c) positioning and mounting have been reworked;
d) test concept of partition ventilating fans has changed to measure both inlet and outlet side together.
This Part 2-7 is to be used in conjunction with IEC 60704-1:2021, Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 1: General requirements.

IEC 60728-103:2026 specifies the measuring methods, performance requirements and data publication requirements for active wideband equipment of cable networks for television signals, sound signals and interactive services with digital signals only.
This document:
- applies to all amplifiers used in cable networks;
- covers the frequency range 5 MHz to 3 000 MHz;
NOTE The upper limit of 3 000 MHz is an example, but not a strict value.
- applies to one-way and two-way equipment;
- specifies the basic methods of measurement of the operational characteristics of the active equipment in order to assess the performance of this equipment;
- identifies the performance specifications to be published by the manufacturers;
- states the minimum performance requirements of certain parameters.
While IEC 60728-3:2017 has served as a basis for its development, this document describes the methods of measurement for digital modulated signals only. It also covers the Data Over Cable Service Interface Specification (DOCSIS) 4.0 requirements with additional digital modulation schemes as well as for the extended frequency ranges:
- up to 1 794 MHz for the forward path;
- up to 684 MHz for the return path.
IEC 60728-3:2017, fifth edition, has served as a basis for the development of this document.

IEC 60704-2-8:2026 applies to electric shavers, hair clippers or trimmers for domestic and similar use. This document does not apply to shavers, hair clippers or trimmers that are powered by means other than electrical, for example by a spring-device. If possible, this document can also be applied to analogous electrically operated devices, such as depilating devices. This third edition cancels and replaces the second edition published in 2020. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60704-1:2021;
b) stabilizing period and check of the battery status has been redefined;
c) position of the appliance during test has been redefined.
This Part 2-8 is intended to be used in conjunction with fourth edition of IEC 60704-1:2021, Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 1: General requirements.

IEC 61800-5-2:2016 specifies requirements and makes recommendations for the design and development, integration and validation of safety related power drive systems (PDS(SR)) in terms of their functional safety considerations. It applies to adjustable speed electrical power drive systems covered by the other parts of the IEC 61800 series of standards as referred in IEC 61800-2. IEC 61800-5-2, which is a product standard, sets out safety-related considerations of PDS(SR)s in terms of the framework of IEC 61508, and introduces requirements for PDS(SR)s as subsystems of a safety-related system. It is intended to facilitate the realisation of the electrical/ electronic/programmable electronic (E/E/PE) parts of a PDS(SR) in relation to the safety performance of safety sub-function(s) of a PDS. This edition includes the following significant technical changes with respect to the previous edition:
a) rational added in the scope why low demand mode is not covered by this standard,
b) definition added for: "category" and "safety function",
c) "Other sub-functions" sorted into "Monitoring sub-functions" and "Output functions",
d) deleted "proof test" throughout the document because for PDS(SR) a proof test is not applicable,
e) replaced the term "safety function" by "safety sub-function" throughout the document,
f) Updated references to IEC 61508 series Ed.2010,
g) Added the principle rules of ISO 13849-1 and reference to tables of ISO 13849-2,
h) 6.1.6 Text replaced by Table 2,
i) 6.1.7 Integrated circuits with on-chip redundancy matched to changed requirement in IEC 61508-2: 2010, Annex E,
j) 6.2.8 Design requirements for thermal immunity of a PDS(SR)
k) 6.2.9 Design requirements for mechanical immunity of a PDS(SR),
l) 6.1.6 SIL for multiple safety sub-functions within one PDS(SR),
m) 6.1.7 Integrated circuits with on-chip redundancy,
n) 6.2.1 Basic and well-tried safety principles,
o) 6.2.2.1.4 Diagnostic test interval when the hardware fault tolerance is greater than zero,
p) 6.2.5.2.7 PDS(SR) parameterization,
q) 9 Test requirements,
r) 9.3 Electromagnetic (EM) immunity testing,
s) 9.4 Thermal immunity testing,
t) 9.5 Mechanical immunity testing,
u) Annex A Sequential task table,
v) Annex D, D.3.16, Motion and position feedback sensors updated,
w) Annex E Electromagnetic immunity (EM) requirement for PDS(SR),
x) Annex F Estimation of PFDavg value for low demand with given PFH value.

IEC TS 63498:2026 harmonizes the requirements and criteria for Key Performance Indicators (KPIs) and specifies KPIs of energy efficiency for entire electric railway system and its subsystems such as trains, contact lines, substations, both single and combined, clarifying the boundaries to be considered. This document applies to entire electric railway systems including non-traction loads.
The purposes are:
a) to determine and to trace the energy efficiency for a specific railway system;
b) to enable comparability between the different electric railway systems (on overall system level) by means of harmonized KPIs and system boundaries concerning energy efficiency;
c) to overview the characteristics of the electric railway system on an overall level with the structure of the electric railway system (including type, hierarchy and number of substations) and the KPIs (including the ranking) for transportation quality;
d) identification of the key impacts for energy efficiency as there are system flexibility, system functions and system features as basic characteristics for the entire electric railway system;
e) definition of harmonized processes and procedures for the simulation or calculation and validation of the system specific energy consumption (including energy feedback);
f) presenting the related and referenced standards and regulations for the electric railway system and its subsystems and their possible contribution to the overall target of the energy efficiency.

IEC 60598-2-24:2026 specifies requirements for luminaires for which limited surface temperatures are provided to counteract risks from combustible dusts (conductive or non‑conductive) or ignition of materials that can be deposited on luminaires. The luminaires are for use with electric light sources on supply voltages not exceeding 1 000 V. This document specifically excludes requirements for luminaires for use in explosive gas atmospheres and explosive dust atmospheres. This third edition cancels and replaces the second edition, published in 2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the clause numbers and structure have been aligned with those of IEC 60598‑1;
b) improved terms and definitions;
c) more detailed classification of luminaires;
d) indication of luminaire mounting positions and use locations;
e) thermal protection of built-in controlgear and other built-in devices required.

IEC 62920:2026 specifies electromagnetic compatibility (EMC) requirements for power conversion equipment (PCE) (e.g. DC to DC, DC to AC and AC to DC) for use in photovoltaic (PV) power systems with or without electrical energy storage devices.
PCE covered by this document can be grid-interactive, which is termed as a grid connected power converter (GCPC), or stand-alone. It can be supplied by single or multiple photovoltaic modules grouped in various array configurations. The PCE can be intended for use in conjunction with batteries or other forms of energy storage and therefore a uni-or bidirectional.
This document covers not only PCE connected to a public low voltage AC mains network or other low voltage AC mains installation, but also PCE connected to a medium or high voltage AC network with or without step-down power transformers. Requirements for the PCE connected to a medium or high voltage AC network are specified in this document. However, some requirements relevant to grid interconnection are addressed with other standards specifying power quality or their own grid codes in some countries.
This document provides test methods and test conditions for PCE at a test site, but not for photovoltaic modules and other balance of system components.
This second edition cancels and replaces the first edition published in 2017 and Amendment 1:2021. This edition includes the following significant technical changes with respect to the previous edition:
a) PCE with radio functionality is added in the scope;
b) operating conditions for tests are revised to cover wired and wireless communications;
c) immunity requirements for antenna ports are added;
d) the surge test is added in the immunity requirements for wired and wireless network ports of class B PCE;
e) performance criteria are revised to cover wired and wireless communications;
f) current limits are added in the table of disturbance limits at the DC power port for class A PCE to cover requirements of the measurement of common mode current when artificial networks are used as voltage probes;
g) limits of conducted common mode disturbance at the antenna port are added;
h) conditional measurement methods and limits of conducted common mode (asymmetric mode) disturbance at ports other than power ports are added;
electromagnetic radiation disturbance limits above 1 GHz are added;
i) an annex for the rational conditional measurement methods and limits of conducted common mode (asymmetric mode) disturbance at ports other than power ports is added.

IEC 60794-1-122:2026 specifies the test procedures used to establish uniform requirements for optical fibre cables on the mechanical properties. This document is used to check the buffered fibre movement under compression in optical fibre cables for use in patch cords. This document applies to optical fibre cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors.
IEC 60794-1-122:2026 cancels and replaces Method E22 of the first edition of IEC 60794-1-21 published in 2015. This edition includes the following significant technical changes with respect to IEC 60794-1-21:2015:
a) addition of "11 Details to be reported".

IEC/IEEE 60880:2026 provides requirements for the software of computer-based systems of nuclear power plants performing functions of safety category A as defined by IEC 61226. As an IEC/IEEE standard developed according to the Dual Logo Agreement, when used within the context of IEEE, this document is considered to provide an acceptable set of requirements for achieving the quality and dependability objectives for the software used in IEEE Class 1E safety systems, subsystems and components.
According to the definition in IEC 61513, I&C systems of safety class 1 are intended to support category A functions, but can also support functions of lower categories. However the system requirements are always determined by the functions of the highest category implemented.
For software of I&C system performing only category B and C functions in NPP as defined by IEC 61226, the requirements and guidance of IEC 62138 are applicable.
This document provides requirements for the purpose of achieving highly dependable software. It addresses each stage of software generation and documentation, including requirements specification, design, implementation, verification and validation testing.
This is the first edition developed according to the IEC/IEEE Dual Logo Agreement. This edition cancels and replaces the second IEC edition published in 2006. It constitutes a technical revision.
The revision of the standard is intended to accomplish the following:
- To take into account the fact that software engineering techniques advanced significantly in the intervening years.
- To align the standard with the new IAEA document SSG-39.
- To align as far as possible the definitions in the standard with the International Atomic Energy Agency, IAEA Nuclear Safety and Security Glossary, 2022 (Interim) Edition, IAEA, Vienna (2022).
- To adapt the requirements associated with standards published or revised since the second edition of IEC 60880, especially IEC 61513, IEC 61226, IEC 62138, IEC 60987, IEC 62340, IEC 62645 and IEC 62671.
- To review the existing requirements.

IEC 62047-56:2026 specifies the requirements and test method for characteristics of MEMS metal oxide semiconductor (MOS) type gas sensor.

IEC TS 60071-4:2026, which is a technical specification, gives guidance on conducting insulation co-ordination studies which propose internationally recognized recommendations:
• for the computational modelling of electrical systems, and
• for the implementation of deterministic and probabilistic methods adapted to the use of numerical programmes.
Its objective is to give information in terms of methods, modelling and examples that support the application of the approaches presented in IEC 60071-2:2023, and for the selection of insulation levels of equipment or installations, as defined in IEC 60071-1:2019.
This edition cancels and replaces IEC TR 60071-4, published in 2004. This edition constitutes a technical revision.

IEC TR 62240-2:2026 focuses on original equipment manufacturers (OEMs) using commercial off the shelf (COTS) semiconductor microcircuits for high performance, high reliability and long duration applications. This document supports OEMs in the preparation and maintenance of their semiconductor electronic component management plan (ECMP). IEC TR 62240-2:2026 describes a process and a method for selecting digital semiconductor microcircuits by ensuring that their lifetime is compatible with the requirements of aerospace, defence and high performance (ADHP) applications (generally in connection with functional environments). Methods and guidelines are provided to assess the long-term reliability of COTS semiconductor microcircuits in such applications; they mainly apply during the electronic design phase when selecting semiconductor microcircuits and assessing the application reliability. Moreover, this document focuses on the intrinsic wear-out and the lifetime of COTS semiconductor microcircuits processed of less than or equal to 90 nm feature size (also called deep sub-micron (DSM) semiconductor microcircuits) and puts aside, at this time, packaging wear-out and random failure mechanisms. In this view, physics of failure (PoF) is at the heart of the approach.
This edition includes the following significant technical changes with respect to the previous edition:
a) introduction of an additional alternative path and approach where lifetime is assessed by the original component manufacturer based on user or original equipment manufacturer microcircuit mission profile;
b) update of Figure 1 with regard to the introduction of the additional alternative path & approach;
c) removal of the mention of SiC & GaN technologies from the considerations in 4.2.2 as the Scope indicates that the principles (process and method) described in this document can be applied to all types of semiconductor technologies.

IEC 63407:2026 is applicable to automatic couplers, consisting of an automated connection device (ACD) and an ACD counterpart, of standardized configuration, intended for use in electric vehicle conductive charging systems which incorporate control means, with rated operating voltage up to 1 500 V DC. This document applies to high power DC interfaces intended for use in isolated conductive charging systems, for circuits specified in IEC 61851‑23‑1.
The requirements of this document apply only to automatic couplers defined in Annex A, Annex B, Annex C and Annex D of this document.

IEC TS 63102:2026 highlights the recommended technical methods of grid code compliance assessment of renewable energy (RE) power plants connected to the grid, including wind power plants, photovoltaic (PV) power plants, and hybrid power plants. Hybrid power plants refer to wind/PV power plants equipped with energy storage systems or combined power plants based on wind, PV, and energy storage. The electrical behaviour of RE power plants in this document includes the operating area, control performance, fault ride-through capability, power quality, oscillation, and grid adaptability.
Compliance assessment is the process of determining whether the electrical behaviour of RE power plants meets the specific technical requirements in grid codes or technical regulations. The assessment methods include compliance field test, compliance simulation, hardware-in-the-loop (HIL) simulation and compliance monitoring. The input for compliance assessment includes relevant supporting documents, test results, validated simulation models, controller hardware, and continuous monitoring data. This document focuses exclusively on assessment methods from a technical perspective. It does not address certification-related procedures.
This document is applicable to RE power plants connected to the electrical power grid.
This second edition cancels and replaces the first edition published in 2021. This edition includes the following significant technical changes with respect to the previous edition:
a) in terms of scope, wind and PV power plants are replaced by the renewable energy power plants that includes wind power plants, PV power plants and hybrid power plants. Oscillation and grid adaptability are added in the assessment scope;
b) Clause 5 optimizes the descriptions of compliance field testing, compliance simulation, HIL simulation and compliance monitoring assessment methods, and recommends corresponding assessment methods according to different phases of renewable energy power plants and various assessment items;
c) Clause 6 supplements compliance field test methods for reactive power capability assessment;
d) Clause 7 adds synthetic inertia response and voltage slope control to control performance assessment, adjusts recommended contents for field testing and HIL simulation, f) improves applicable conditions and reference procedures of assessment methods, and updates illustrative charts and figures;
e) Clause 8 adds cascaded under and over voltage ride-through assessment cases, and refines simulation procedures and requirements for simulation results;
f) Clause 9 incorporates compliance simulation and monitoring methods into power quality assessment;
g) oscillation assessment is newly introduced, adopting combined time-domain and frequency-domain simulation as well as monitoring methods, with the consideration of renewable energy power plants connected to grid via HVDC;
i) grid adaptability assessment is newly supplemented, specifically covering the following withstand capability, such as voltage unbalance factor, flicker and harmonics, phase angle jump and grid strength;
j) Annex A adds topological structure examples of renewable energy power plants, compliance simulation setup, and improves contents including HIL simulation setup, monitoring of electrical performance and harmonics simulation.

IEC 60794-3-11:2026 sets forth detailed requirements and characteristics specific to this type of optical fibre cables for duct, direct buried, and lashed installation. This document includes functional, mechanical, environmental and optical requirements, recommended features and test methods for assessing the product against the stated requirements. The specified test methods, where applicable, are those referenced in IEC 60794-1-1 and IEC 60794-1-2. The requirements of this document supplement those of the sectional specification IEC 60794‑3 and the family specification IEC 60794-3-10.
This edition includes the following significant technical changes with respect to the previous edition:
a) subclause 5.2.2 has been enlarged to include fibre type B-657.B2;
b) this document has been updated to include multimode optical fibres.

IEC 60335-2-17:2022 deals with the safety of electric blankets, pads, clothing and other flexible appliances that heat the bed or human body, for household and similar purposes, their rated voltage being not more than 250 V including direct current (DC) supplied appliances and battery-operated appliances.
This standard also applies to control units supplied with the appliance.
Appliances not intended for normal household use but which nevertheless possibly pose be a source of danger to the public, such as appliances intended to be used in beauty parlours or by persons in cold ambient temperatures, are within the scope of this standard.
Requirements and tests for clothing are given in normative Annex CC.
As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account
– persons (including children) whose physical, sensory or mental capabilities or lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Children are considered to be old enough to use an appliance without supervision when they have been adequately instructed by a parent or guardian and are deemed competent to use the appliance safely.
Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements can be necessary;
– in many countries, additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour and similar authorities.
This standard does not apply to
– appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);
– rigid bed warmers, such as those of metal or ceramic material;
– water bed heaters (IEC 60335-2-66);
– heating appliances for breeding and rearing animals (IEC 60335-2-71);
– foot warmers and heating mats (IEC 60335-2-81);
– appliances specifically intended for use under medical supervision (IEC 60601-2-35);
– heated carpets (IEC 60335-2-106).
This fourth edition cancels and replaces the third edition published in 2012, Amendment 1:2015 and Amendment 2:2019. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60335-1:2020;
b) conversion of some notes to normative text (Clause 1, 19.106, 21.103, 21.104, 21.110, 30.1, 30.102, Annex BB, CC.19.3);
c) clarification of the definition of control unit (3.6.105);
d) revision for adjusting the supply voltage of appliances, other than controlled appliances, when operation at rated power input times a factor is specified (5.12);
e) clarification of testing of blankets that cannot be folded with five thicknesses (19.101);
f) updated compliance criteria to include breakage of electrodes (21.1);
g) clarification of the test method for mattresses based on the rigidity index of the flexible part (21.111.1, Annex DD);
h) clarification for testing heating elements with a non-circular construction (21.111.3);
i) addition of requirements to protect the user from overheating in the event of an interruption in the mains supply (22.110)
j) inclusion of pressure test method from IEC 60320-1:2001 (30.1);
k) update of test methods for resistance to fire tests (30.101.1, 30.102).
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments unless that edition precludes it; in that case, the latest edition that does not preclude it is used. It was established on the basis of the sixth edition (2020) of that standard.

IEC 60335-2-41:2024 deals with the safety of electric pumps for liquids having a temperature not exceeding 90 °C, intended for household and similar purposes, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances including direct current (DC) supplied appliances and battery-operated appliances. Examples of appliances within the scope of this standard are
- aquarium pumps;
- garden pond pumps;
- shower-boost pumps;
- sludge pumps;
- submersible pumps;
- table fountain pumps;
- vertical wet pit pumps.
Appliances not intended for normal household use, but that nevertheless can be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard.
As far as is practicable, this standard deals with the common hazards presented by ap-pliances that are encountered by all persons in and around the home. However, in gen-eral, it does not take into account
- persons (including children) whose physical, sensory or mental capabilities; or lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction;
- children playing with the appliance.
Attention is drawn to the fact that
- for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements can be necessary;
- in many countries additional requirements are specified by the national health authori-ties, the national authorities responsible for the protection of labour and similar au-thorities.
This standard does not apply to
- stationary circulation pumps for heating and service water installations (IEC 60335-2-51);
- pumps for flammable liquids;
- pumps intended exclusively for industrial purposes;
- pumps intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);
- pumps incorporating chlorinators of the electrolytic type.
Pumps incorporated in appliances are not covered by this standard unless a specific ref-erence is made.
This fifth edition cancels and replaces the fourth edition published in 2012. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60335-1:2020;
b) modification or conversion of some notes to normative text (Clause 1, 7.12.1, 25.7);
c) introduction of IEC 60417 symbol for maximum operating depth and indoor use only (7.1, 7.6, 7.12.1);
d) clarification of requirements for aquarium pumps and garden pond pumps;
e) addition of legibility requirements for markings exposed to solar radiation (7.14);
f) clarification of pumps subjected to test probe 18 (8.1.1, 20.2);
g) introduction of accessible surface temperature limits (Clause 11);
h) addition of requirements for IEC 61984 connectors for pumps intended for permanent connection to fixed wiring (22.107, 24.1.5, 24.1.101, 25.3).
i) clarifications on remote operation for pumps in scope of this standard (22.40, 22.49, 22,51).
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments unless that edition precludes it; in that case, the latest edition that does not preclude it is used. It was established on the basis of the sixth edition (2020) of that standard.

IEC 60335-2-125:2026 deals with the safety of electric breast pump appliances for expressing breast milk for household and similar purposes, their rated voltage being not more than 250 V, including direct current (DC) supplied appliances and battery-operated appliances.
Appliances not intended for normal household use but that nevertheless can be a source of danger to the public, such as appliances intended to be used outdoors and at lactation specialist offices, are within the scope of this standard.
As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account:
– persons (including children) whose physical, sensory or mental capabilities; or lack of experience and knowledge
prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on-board ships or aircraft, additional requirements can be necessary;
– in many countries additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour and similar authorities.
This standard does not apply to
– breast pump appliances for expressing breast milk intended for medical purposes (IEC 60601 series);
– electric appliances for massage of persons and intended for household and similar purposes (IEC 60335-2-32);
– electric pumps for liquids for household and similar purposes (IEC 60335-2-41).
In some jurisdictions, a breast pump appliance is classified as a medical device. To avoid confusion for users, several requirements between the different standards are aligned in this document.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments unless that edition precludes it; in that case, the latest edition that does not preclude it is used. It was established on the basis of the sixth edition (2020) of that standard.

IEC 61754-6:2022 specifies the standard interface dimensions for type MU family of connectors. This third edition cancels and replaces the second edition published in 2013 and constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- the test method IEC 61300-3-22 for the compression force of the ferrule was added;
- Annex D (informative) with cut out dimension requirements for testing the strength of mounted adaptors was added.

IEC 60335-2-53:2026 deals with the safety of electric sauna heating appliances and infrared emitting units having a rated power input not exceeding 20 kW, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances. The appliances covered by this standard are intended for use in the home and in public saunas located in blocks of flats, hotels and similar locations. This standard also applies to prefabricated saunas, prefabricated infrared cabins and sauna heaters provided with a thermal storage function. This standard also deals with the safety of electric sauna heating appliances provided with a humidifier unit. The room air is humidified by evaporating or atomising water.
NOTE A humidifier can be part of a sauna heating appliance or can be incorporated in the sauna heater. The sauna heating appliance or sauna heater can be operated with or without the humidifier.
As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account
– persons (including children) whose physical, sensory or mental capabilities; or lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements can be necessary;
– in many countries, additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour and similar authorities.
This standard does not apply to
– appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);
– appliances intended to cause perspiration to only a part of the human body;
– sweating baths where the head of the user remains outside the heated space;
– tents and other collapsible sauna baths;
– room heaters (IEC 60335-2-30);
– humidifiers intended for use with heating, ventilation, or air-conditioning systems (IEC 60335-2-88);
– humidifiers (IEC 60335-2-98);
– appliances intended for medical purposes (IEC 60601).
This fifth edition cancels and replaces the fourth edition published in 2011, Amendment 1:2017 and Amendment 2:2021. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60335 1:2020;
b) conversion of some notes to normative text (Clause 1, 7.1, 7.14, 19.101, 19.104, 22.101, 22.104);
c) clarification and addition of requirements for sauna heaters with a thermal storage function (Clause 1, 3.1.9, 3.5.101, 3.8.103, 5.3, 7.1, 7.12, 10.1, 10.2, 13.1, 19.1, 19.105);
d) addition of test probe 19 for accessibility of live parts and moving parts not more than 850 mm above the floor (8.1.1, 8.1.3, 20.2);
e) addition of surface temperatures for external accessible surfaces outside the sauna room or infrared cabin (11.3, 11.8);
f) clarifications related to the use of the terms "control" and "protective device" (3.5.102, 3.6.102, 5.9, 6.2. 7.7, 7.12.1, 22.105, 24.102, Figure 101.
This part 2 is to be used in conjunction with the latest edition of IEC 60335 1 and its amendments unless that edition precludes it; in that case, the latest edition that does not preclude it is used. It was established on the basis of the sixth edition (2020) with amendment 1 (2025) of that standard.

IEC PAS 61850-90-28:2026, which is a Publicly Available Specification, specifies the expected behavior and associated documentation related to the validation of received GOOSE and SV messages. It considers engineering rules and guidance to ensure that the communication configuration process is well designed for this validation. Conformance statements related to this validation are also considered.
This document considers subscribers claiming conformance to latest editions of the IEC 61850 series in combination with publishers claiming conformance to any previous version and revision of the IEC 61850 series.

IEC TS 61400‑28-2:2026 addresses the decommissioning and preparation for recycling of wind turbines.
This scope includes all the tasks and on-site considerations of the different process steps, from the beginning of the dismantling phase, material preparation and arrangement, and preparation for shipment to re-using or recycling facilities. Wind turbines in the context of this document include blades, hubs, nacelles, towers, foundations, generators, gearboxes, cables, electrical equipment, transformers, and any other equipment that can be dismantled from wind turbines and not listed before.
The purpose of this document is to define the framework conditions of decommissioning and preparation for recycling of wind turbines, which includes the tasks and considerations of each of the steps of the process. The objective is to provide basic high-level information on the sustainable and efficient decommissioning and dismantling arrangements for wind turbines.
This document can be used by manufacturers, asset owners, governments, operators, recyclers and personnel involved in the decommissioning and preparation for recycling of wind turbines.

IEC 60695-1-14:2026 provides guidance about the levels of power and energy that could cause ignition and fire in a low voltage electrotechnical product. It can be used by Product Committees to determine what fire hazard safeguards can be used, based on the electrical energy that could be dissipated as heat.
This document deals with products used in normal atmospheres commonly available in the home and does not deal with special locations such as those in explosive atmospheres. It is intended as guidance to IEC committees, and is intended be used with respect to their individual applications.
This basic safety publication, focusing on safety guidance, is primarily intended for use by TCs in the preparation of safety publications in accordance with the principles laid down in IEC GUIDE 104 and ISO/IEC Guide 51.
This first edition cancels and replaces the first edition of IEC TS 60695-1-14 published in 2017.
This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Conversion from a Technical Specification to an International Standard;
b) Improved clarification on when the classification of Figure 1 (power/time limits) and Figure
2 (time limits) can be used;
c) Updated normative references.

IEC 60095-8:2026 is applicable to lead acid batteries with a nominal voltage of 12 V, for automobile passenger cars applications, used as auxiliary energy storage and power source in vehicles, but not featuring the classical function of engine starting or cranking. This includes applications in battery-electric vehicles, as well as in vehicles with an internal combustion engine (ICE) that is started by another (12 V, 48 V or high-volt) battery. This document can be used for batteries with auxiliary or backup purposes.
This document specifies:
– the general requirements; and
– the essential functional characteristics, relevant test methods and results required for several classes of batteries in accordance with:
• the general type of application;
• the type of product; and
• the categories as defined in 4.1.

IEC 62305-2:2024 is applicable to the risk management of a structure due to lightning flashes to earth.
Its purpose is to provide a procedure for the evaluation of such a risk. Once an upper tolerable limit for the risk has been selected, this procedure provides a means for the selection of appropriate protection measures to be adopted to reduce the risk to or below the tolerable limit.
This third edition cancels and replaces the second edition, published in 2010. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) The concept of a single risk, to combine loss of human life and loss due to fire, has been introduced.
b) The concept of frequency of damage that can impair the availability of the internal systems within the structure has been introduced.
c) The lightning ground strike-point density NSG has been introduced replacing the lightning flash density NG in the evaluation of expected average annual number of dangerous events.
d) Reduction of a few risk components can be achieved by the use of preventive temporary measures activated by means of a thunderstorm warning system (TWS) compliant with IEC 62793. The risk of direct strike to people in open areas has been introduced, considering the reduction of that risk using a TWS.
The content of the corrigendum 1 (2024-10) has been included in this copy.

IEC/IEEE 62704-1:2026 defines the methodology for the application of the finite-difference time domain (FDTD) technique when used for determining the peak spatial-average specific absorption rate (psSAR) in the human body exposed to wireless communication devices with known uncertainty. It defines methods to validate the computational model of the device under test (DUT) and to assess its uncertainty when used in SAR simulations. Moreover, it defines procedures to determine the psSAR in a cubical volume and to verify the correct implementation of the FDTD simulation software. The applicable frequency range is 100 kHz to 10 GHz.
This document does not recommend specific SAR limits; these are found elsewhere, for example, in the guidelines published by the International Commission on Non-Ionizing Radiation Protection (ICNIRP) or in IEEE Std C95.1.
This second edition cancels and replaces the first edition published in 2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) specification of a SAR averaging algorithm for the calculation of the psSAR from computational results for arbitrarily shaped homogeneous phantoms, which avoids inconsistencies with respect to the algorithm for SAR averaging algorithm specified in IEC/IEEE 62209-1528 for SAR measurement methods;
b) provision of SHA-256 checksums for all supplemental files;
c) addition of brief informative discussion on developmental stages of IEC and IEEE computational modelling standards for SAR evaluations.

IEC 63182-9:2026 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of ellipse-cores made of metallic magnetic powder, and gives guidelines on allowable limits of surface irregularities applicable to ellipse-cores.
This document is a specification useful in the negotiations between magnetic powder core suppliers and users about surface irregularities.
The use of "derived" standards which give more detailed specifications of component parts while still permitting compliance with this document is discussed in Annex A.

Covers terms which are specifically relevant to telecontrol techniques as well as other terms which are necessary for the understanding of telecontrol standards. Is a technical report of type 3.

IEC 60079-1:2026 contains specific requirements for the construction and testing of Ex Equipment and Ex Components with the Type of Protection flameproof enclosure "d", intended for use in explosive gas atmospheres.
This document supplements and modifies the general requirements of IEC 60079‑0. Where a requirement of this document conflicts with a requirement of IEC 60079‑0, the requirement of this document takes precedence.
This eighth edition constitutes a technical revision. Refer to the Foreword of the document for a complete listing of the technical changes between edition 8.0 and the previous edition of the document.
Users of this document are advised that interpretation sheets clarifying the interpretation of this document can be published. Interpretation sheets are available from the IEC webstore and can be found in the "history" tab of the page for each document.

IEC 60068-2-64:2026 demonstrates the adequacy of a specimen to resist dynamic loads without unacceptable degradation of its functional and structural integrity (or either of them) when subjected to the specified random vibration test requirements. Broadband random vibration can be used to identify accumulated stress effects and the resulting mechanical weakness and degradation in the specified performance. This information, in conjunction with the relevant specification, can be used to assess the acceptability of specimens. This third edition cancels and replaces the second edition, published in 2008, and Amendment 1:2019. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) update of Annex A with references to examples;
b) introduction of an organizational deviation treatment;
c) clarification on requirements.

IEC 61290-3-2:2026 applies to all commercially available optical amplifiers (OAs), including OAs using optically pumped fibres (i.e. optical fibre amplifiers (OFAs) based on either rare-earth doped fibres or on the Raman effect), semiconductor optical amplifiers (SOAs), and planar waveguide optical amplifiers (PWOAs).
This document defines requirements for accurate and reliable measurements of the noise figure parameters of OAs by means of the electrical spectrum analyser (ESA) method. The noise figure parameters of OAs are defined in IEC 61291-1.
This edition includes the following significant technical changes with respect to the previous edition:
a) shortening and clarification of the scope in Clause 1;
b) update of the normative references in Clause 2;
c) deletion of duplicate instructions in 7.2 to measure the time-average input power;
d) deletion of unused symbols in 3.3 and addition of new symbol.

IEC TR 62786-101:2026 provides the principles and general technical characteristics of gravity energy storage systems (GESS) connected to the distribution network. It provides a reference for the planning, design, grid connection and operation of GESS. It includes an introduction to GESS, grid-connection methods, grid-connected characteristics, grid-connected operation and grid-connected testing and so on.
GESS can use liquid or solid mediums for storing or releasing energy. For example, traditional pumped storage utilizes liquid water to achieve energy storing or releasing. This document only focuses on the solid GESS, which utilize solid materials (such as concrete, slag, construction waste, etc.) for energy storage. Generally, GESS can be classified as vertical GESS and slope GESS. In the GESS, the motor-generators (MG) that are directly connected, or indirectly connected to the low voltage (LV) or medium voltage (MV) distribution network through converters, transfer the energy between the mass blocks and the grid. This document reports the grid-connection method, active power response characteristic, response of active power to frequency, response of reactive power to voltage and test of direct grid connection through synchronous motor-generator (SMG), as a supplement to IEC TS 62786-1:2023.
This document describes the interface arrangement for the connection of GESS to distribution networks with the nominal frequency of 50 Hz or 60 Hz.

IEC 62906-5-8:2026 specifies the standard measurement conditions and methods of scanning characteristics for raster-scanning laser display which uses a MEMS mirror as optical scanner and is designed for projection onto a flat screen.

IEC TS 63202:2026 defines a hot water soaking test to determine whether crystalline silicon photovoltaic (PV) cells have metallization that is durable enough to be used in PV modules.
It is applied to crystalline silicon PV cells whose metallization is made with conductive metal pastes.
Hot water soaking test is an accelerated aging test carried out using conditions of high temperature and humidity. This test can be used to identify cells with poor metal adhesion. Such cells shed some of their metal during delivery and storage, causing visual defects and potential risk of module reliability issues.

IEC PAS 61400-60:2026 will be applied to existing models already in use within the wind energy sector, as well as to future models (and updates of models) that will be used within the wind energy sector. As such, this document does not set specific requirements to model accuracy and precision but aims to transparently establish the performance of models in terms of accuracy and precision, both for the intended use as covered by measurements as well as the predictive capability of the model.
This document (and all documents under IEC PAS 61400-60 (all parts) aims at model validation but not model development. Specifically, this document further defines the model validation requirements in the following standards and operational documents:
- IEC 61400-1:2019,
- IEC 61400-5:2020,
- IEC 61400-27-2:2020,
- OD-501:2018 [2],
- OD-501:2022 [3],
- IECRE Clarification sheet CSH022 Ed 2.0

IEC 63516:2026 defines the test method for providing uniform quality fixed folding durability test data to opto-electric wiring users. In particular, it provides a test condition for the tension and free tension folded state of the flexible opto-electric circuit boards of optic fibre type.

IEC 63068-5:2026 provides definitions and guidance in use of X-ray topography inspection system for detecting defects in silicon carbide (SiC) homoepitaxial wafers. Additionally, this document exemplifies X-ray topographic images to enable the detection and categorization of defects in SiC homoepitaxial wafers.

IEC TR 63676-1:2026 describes the system overview of external visual systems of external human - machine interfaces (eHMIs). These systems are specifically designed for use in automated vehicles. It provides an introduction and background information on the concept of eHMIs, highlighting their significance in the context of automated vehicles. Additionally, it describes the architecture and key components of external visual systems used in eHMI multimedia systems.
It does not deal with:
a) external display usage scenario;
b) UX and UI of external display;
c) hardware performance of eHMI;
d) eHMI regulation of automated vehicle;
e) special vehicle conditions that use eHMI external displays, such as trucks, ambulances, fire engines, buses, and taxis.

IEC TR 60086-7:2026, which is a technical report, provides a procedure to indirectly assess coin cells for their potential to cause internal injury if ingested.