IEC - International Electrotechnical Commission

IEC 61307:2026 specifies test methods for the determination of the efficiency of frequency conversion from the electrical input, and of the available and workload microwave output power in industrial microwave heating installations, as well as operational flexibility. This document is in principle applicable to industrial microwave heating equipment and installations in the frequency range from 300 MHz to 300 GHz but focused on the microwave ISM frequencies below 6 GHz. This document relates to industrial microwave heating equipment operating as intended by the manufacturer's specifications for normal operation. This document does not apply to appliances for household and similar use (covered by IEC 60335‑2‑25), commercial use (covered by IEC 60335-2-90 and IEC 60335‑2-110) or laboratory use (covered by IEC 61010-2-010). This fourth edition cancels and replaces the third edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) it covers not only the standby and hibernation modes, but also start-up, standby and holding power consumption, as well as other aspects of operation flexibility;
b) more detailed descriptions of the aspects of microwave power, and handling of the A and B types of equipment.

IEC/IEEE 61007-389:2026 describes a number of tests for use in determining the significant parameters and performance characteristics of transformers and inductors for use in electronics and telecommunication equipment. These test methods are designed primarily for transformers and inductors used in all types of electronics applications that can be involved in any specification for such components. Even though these tests could be applied supplementally for other types of transformers, such as those with larger power ratings used in the utility power industry, the tests discussed in this document are not intended to replace the tests in standards for those other transformers.
Some of the tests described are intended for qualifying a product for a specific application, while others are test practices used for manufacturing and customer acceptance testing. The test methods described here include those parameters most commonly used in the electronics transformer and inductor industry: electric strength, resistance, power loss, inductance, impedance, balance, transformation ratio and many others used less frequently.
This first edition of IEC/IEEE 61007-389 cancels and replaces IEC 61007:2020 and IEEE 389:2020, which has been technically revised.
This edition includes the following significant technical changes with respect to the previous edition:
a) added the following new test items:
1) transformer capacitance (in 4.5.6.1);
2) voltage transformation (VT) ratio (in 4.5.7.3);
3) thermo-couple method (in 4.5.15.3);
4) bridge circuit measurement (in 4.5.16.3);
5) dynamic CM capacitance of a transformer (in 4.5.20);
6) tests of the parameter in transformer equivalent circuit (in 4.5.21);
b) updated the following test items:
1) added test purpose: AC resistance (in 4.5.1.2); dielectric withstand voltage test (in 4.5.2.1); effective inductance (in 4.5.4.1); capacitance unbalance (in 4.5.5.1); total harmonic distortion (in 4.5.13);
2) testing fundamentals and equipment modification: DC winding resistance (in 4.5.1.1); AC resistance (in 4.5.1.2); winding continuity (in 4.5.1.3); excitation apparent-power measurements (in 4.5.3.4); capacitance unbalance (in 4.5.5.1); self-capacitance (distributed capacitance) (in 4.5.6.2); inter-winding capacitance (in 4.5.6.3); inherent self-resonance (in 4.5.8.1); resonant assemblies (in 4.5.8.2); insertion loss (in 4.5.9.1); return loss (in 4.5.9.2); crosstalk (in 4.5.10); pulse characteristics (in 4.5.11.1); transformer response measurements (in 4.5.11.2); total harmonic distortion (in 4.5.13); method utilizing the change in DC resistance of a winding (in 4.5.15.1); method using an additional series-opposing bifilar winding (in 4.5.15.2); safety screens (in 4.5.17.2); magnetic radiation (in 4.5.17.4); acoustic noise (in 4.5.18.1);
3) procedure modification: dielectric withstand voltage test (in 4.5.2.1); induced voltage test (in 4.5.2.2); capacitance unbalance (in 4.5.5.1);
4) Information to be stated modification: insulation resistance (in 4.5.2.4); excitation apparent-power measurements (in 4.5.3.4); stray-load losses (in 4.5.3.5); power factor (in 4.5.3.8); inherent self-resonance (in 4.5.8.1); parallel resonance and series resonance (in 4.5.8.3); transformer pulse response (in 4.5.11.3);
removed Annex D and Annex F in IEC 61007:2020.

IEC TS 63086-2-5:2026 specifies test methods for measuring the performance change of electrically powered household and similar air cleaners caused by the loading with particles.
The main intention of the document is to compare differences in the performance change between air cleaners exposed to the same loading with particles. The performance change is not necessarily representative for real-use applications since concentration, size, morphology and chemical composition of particles present in household or similar environments can strongly differ.

IEC 61853-2:2026 establishes IEC requirements for evaluating PV module performance based on power (watts), energy (joule or watthours) and performance ratio. It is written to be applicable to all PV technologies, including bifacial PV modules, but can be unsuitable for any technology where the module performance changes with time (e.g. modules change their behaviour with light or thermal exposure), or which experience significant non-linearities in any of their characteristics used for the modelling.
The purpose of document is to define procedures for measuring the effects of angle of incidence of the irradiance on the output power of the device, to determine the operating temperature of a module for a specific set of ambient and mounting conditions and measure the spectral responsivity of the module.

IEC 63203-403-1:2026 specifies test methods for surface electromyography (sEMG) sensors by evaluating the quality of sEMG signals obtained from contracting the muscles of the forearm and hand for wearable applications. It is applicable to sEMG sensors that are used to decipher movement intentions and use them as control signals in situations such as virtual reality, game, unmanned aerial vehicles (UAV), robot control, and home automation. This document does not apply to sEMG sensors intended for medical diagnosis or treatment. For medical devices, national requirements can apply.

IEC 60335-2-16:2022 deals with the safety of electric food waste disposers 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 possibly pose 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 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, the national water supply authorities and similar authorities, leading to restriction of or prohibition of the installation of food waste disposers.
This standard does not apply to
– portable food waste disposers;
– food waste disposers of the incinerator type;
– appliances intended exclusively for industrial or commercial purposes;
– 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).
This sixth edition cancels and replaces the fifth edition published in 2002, Amendment 1:2008 and Amendment 2:2011. 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) some notes have been converted to normative text (Clause 1, 22.104);
c) addition of temperature rise limits for accessible surface (Clause 11).
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 62475:2026 is applicable to high-current testing and measurements on both high-voltage and low-voltage equipment. It deals with steady-state and short-time direct current (as e.g. encountered in high-power DC testing), steady-state and short-time alternating current (as e.g. encountered in high-power AC testing), and impulse-current. In general, currents above 100 A are considered in this International Standard, although currents less than this can occur in tests.
This standard:
• defines the terms used;
• defines parameters and their tolerances;
• describes methods to estimate uncertainties of high-current measurements;
• states the requirements applicable to a complete measuring system;
• describes the methods for approving a measuring system and checking its components;
• describes the procedure by which the user shows that a measuring system meets the requirements of this document, including limits set for uncertainty of measurement.
This standard also covers fault detection during, for example, lightning impulse testing.
This second edition cancels and replaces the first edition published in 2010. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
• minor errors in edition 1 have corrected;
• terms and definitions have been modified to achieve best possible adherence to IEC 60060‑2:2025 and have been ascribed appropriate [SOURCE];
• terms and definitions which in edition 1 were presented in clauses other than Clause 3 have been moved into Clause 3.
• Annex B, Clause B.4 has been amended to provide an example of uncertainty calculation for the use of an approved measuring system;
• Clause C.2 has been deleted since the definitions given there are not referred to, with the exception of the origin of the step, which is used in Annex D. The applicable information has been added to Annex D as Note 1.
• Annex G, Clause G.8 has been amended to replace “peak factor” by “a factor”. Texts have been clarified. Equations for relation between factor κ and cos ϕ have been developed to a simplified form.
• Annex G, Clause G.9 has been added.

ISO/IEC 30178:2026 defines common formats, values, and coding for data interoperability and exchange among systems in the Internet of Things (IoT).

IEC TR 61000-1-9:2024 which is a Technical Report, provides examples for the evaluation of measurement uncertainty of harmonic emission tests performed using IEC 61000-3-2 and IEC 61000-3-12, and their application to the relevant conformity decisions. It also contains practical formulae to enable calculations in accordance with ISO/IEC Guide 98-3 (GUM).

IEC 61000-4-29:2026 defines test methods for immunity to voltage dips, short interruptions and voltage variations at the DC input power port of electrical or electronic equipment. This document is applicable to equipment and systems whose DC input power ports are intended to be connected to low voltage DC networks external to the equipment and systems. The object of this document is to establish a common and reproducible basis for testing electrical and electronic equipment when subjected to voltage dips, short interruptions or voltage variations on DC input power ports.
This document defines:
- the range of test levels;
- the test generator;
- the test set-up;
- the test procedure.
The test described hereinafter applies to electrical and electronic equipment and systems. It also applies to modules or subsystems whenever the equipment under test’s (EUT) rated power is greater than the test generator capacity specified in Clause 6. The ripple at the DC input power port is not included in the scope of this document. It is covered by IEC 61000‑4‑17. This document does not specify the tests to be applied to particular apparatus or systems. Its main aim is to give a general basic reference to IEC product committees. These product committees (or users and manufacturers of equipment) remain responsible for the appropriate choice of the tests and the severity level to be applied to their equipment. This second edition cancels and replaces the first edition published in 2000. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Increase of the output voltage of the test generator to take into account new DC networks voltages;
b) provision of tolerances for the duration of the voltage changes;
c) limitation of the current when applying short interruptions in low impedance condition;
d) general technical clarifications for the specifications of the test generator and their verification;
e) clarifications regarding the loads used to verify the switching characteristics and the peak inrush current drive capability of the test generator;
f) clarifications regarding the evaluation of test results and test reports;
g) description of the DC environment.

IEC TR 61000-1-9: 2026 Amendment 1

IEC 61058-1:2026 applies to switches or switching devices for appliances. The switches are intended to control electrical appliances and other equipment for household or similar purposes with a rated voltage not exceeding 600 V and a rated current not exceeding 63 A. This fifth edition cancels and replaces the fourth edition published in 2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Extension to 600 V in the scope;
b) Add requirements on ground-fuse (Clause 17);
c) DC arc extinction test (Annex P and Clause 17);
d) Table 5 re-arranged to line-up with classifications;
e) Table 6 correction due to inhomogeneous values;
f) Deletion of X3 capacitors in classification and in Table 19.

IEC 63580:2026 provides guidance to manufacturers of measuring equipment for electrical and electromagnetic quantities (ME3Q) in evaluating and improving the environmental impact of their products, and in enabling effective communication using common references for environmental information throughout the supply chain.
This document covers only the below fixed installed measuring equipment:
IEC 61557-12, power metering and monitoring devices (PMD);
IEC 62586-1, power quality instruments (PQI);
IEC 60688, transducers (TRD);
IEC 62974-1, devices for data management (DDM).

IEC 62046: 2026 specifies requirements for the selection, positioning, configuration and commissioning of sensitive protective equipment (SPE) to detect the momentary or continued presence of persons in order to protect those persons from dangerous part(s) of machinery in industrial applications. This document covers the application of electro-sensitive protective equipment (ESPE) specified in the IEC 61496 series and pressure-sensitive mats and floors specified in ISO 13856‑1. It takes into account the characteristics of the machinery, the sensitive protective equipment, the environment and human interaction by persons of 14 years and older. This document includes informative annexes to provide guidance on the application of sensitive protective equipment to detect the presence of persons. These annexes contain examples to illustrate the principles of this document. These examples are not intended to be the only solutions to a given application and are not intended to restrict innovation or advancement of technology. The examples are provided only as representative solutions to illustrate some of the concepts of integration of sensitive protective equipment, and have been simplified for clarity, so they can be incomplete. It is intended that this document is used in conjunction with ISO 13855. This second edition cancels and replaces the first edition published in 2018. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the first edition:
a) restructuring of the document to aid the user;
b) additional information on vision and radar systems;
c) muting requirements have been updated;
d) information on whole body access has been added;
e) whole body access has also been covered in more detail;
f) alignment to changes in ISO 13855.

IEC 62820‑1‑2:2026 specifies the technical requirements for the composition, functions, performance and test methods of building intercom systems using the Internet protocol (IP), and it is a supplement to IEC 62820‑1‑1. This document is applicable to the IP building intercom systems for both residential and commercial buildings.

IEC 61300-3-30 describes a method for measuring the endface geometry of rectangular multifibre ferrules having an IEC defined optical interface. The primary attributes are fibre position relative to the endface, endface angle relative to the guide holes, fibre tip radii and core dip for multimode fibres.
This edition includes the following significant technical changes with respect to the previous edition:
a) clarification of region diameter symbols;
b) introduction of x116 and x132 region of interest (ROI) to support MT-16 and MT-32 ferrule types;
c) preparation of geometry limit (GL) parameter tables for 16-, 24- and 32-fibre ferrules;
d) clarification of the neighbouring fibres definition when computing adjacent height;
e) improvement of figures in Annexes.

IEC 63585:2026 This document gives guidelines to the transformer operator in evaluating dissolved gas analysis (DGA) data obtained from natural ester according to IEC 62770 and synthetic ester according to IEC 61099 in liquid filled transformers and similar equipment.
This document includes the following:
- gas generation in a natural and synthetic ester-filled transformer;
- DGA interpretation methods;
- gas concentration guide values valid for the use of DGA interpretation tools;
- nterpretation of the dissolved gas analysis results;
- recommended actions based on the interpretation of dissolved gas analysis results;
- examples of faulty equipment.

IEC 62788-2-1:2023 specifies the safety requirements for flexible polymeric front- and backsheet constructions, which are intended for use as relied-upon insulation in photovoltaic (PV) modules. The specifications in this document define the specific requirements of polymeric front- or backsheet constructions on the component level and cover mechanical, electrical, visual and thermal characterization in an unexposed state and/or after ageing. This document covers class II and class 0 modules, as defined in IEC 61730-1. Class III modules are out of scope. This document provides the requirements for qualification of front- and backsheets to be used in module safety qualification according to IEC 61730-1. Test method descriptions are provided in IEC TS 62788-2, along with additional characterization methods useful for performance or quality assurance.

IEC 60884-1:2022 applies to plugs and fixed or portable socket-outlets for AC only, with or without earthing contact, with a rated voltage greater than 50 V but not exceeding 440 V and a rated current not exceeding 32 A, intended for household and similar purposes, either indoors or outdoors.
Compatible plugs and socket-outlets, when combined, form a plug and socket-outlet system. Standardized systems used around the world are reported in IEC/TR 60083.
The rated current is limited to 16 A maximum for accessories provided with screwless-type terminals.
This fourth edition cancels and replaces the third edition published in 2002, Amendment 1:2006 and Amendment 2:2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
plugs and socket-outlets incorporating pilot lights;
crimped connections in accessories;
insulation piercing terminals (IPT);
accessories to be used with American Wire Gauge (AWG) cables;
accessories used in T° below −5 °C down to and including −45 °C;
accessories used in T° above +40 °C up to and including +70 °C;
plugs and socket-outlets for high load (HL);
clarification of some definitions;
durability of markings test;
introduction of thermal monitoring in the plug;
requirements for shutters in portable socket-outlets;
test walls for the verification of ingress of water;
rewriting of the temperature rise clause.
The contents of the corrigendum of November 2023 have been included in this copy.

IEC 62146-1:2026 is available as IEC 62146-1:2026 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 62146-1:2026 includes generalities of capacitors used on alternating current circuit-breakers and introduces specifications for grading capacitors. Regarding grading capacitors, their function is to control the voltage distribution across the individual interrupter units of a multi-break circuit-breaker.
This document applies to grading capacitors falling into one or both of the following categories for:
- mounting on air-insulated circuit-breakers.
- mounting on enclosed circuit-breakers (for example immersed in insulating gas, in oil, etc.).
The object of this document is:
- to define uniform rules regarding performances, testing and rating;
- to define specific safety rules;
- to provide a guidance for installation and operation.
This document does not apply to capacitors not directly associated with high-voltage alternating current circuit-breakers.

IEC 60909-0:2026 This part of IEC 60909 is applicable to the calculation of short-circuit currents in low-voltage three-phase AC systems, in high-voltage three-phase AC systems, and operating at a nominal frequency of 50 Hz or 60 Hz.
Systems at highest voltages of 550 kV and above with long transmission lines are outside the scope of this document.

ISO/IEC 30188:2026 specifies a general reference architecture for a digital twin system in terms of defining system fundamentals through the use of architecture views.

IEC 63223-1:2026 provides an overview of asset management, its principles and value creation options for the management of network assets in power systems.
This document can be applied to all types of network assets and by all types and sizes of power network companies. The term power network company does not necessarily refer to legally structured companies.
In this document, network assets refer mainly to the physical assets of the electrical energy network, meaning items, equipment, or systems that have potential or actual value for the electric company and are part of the power lines and substations responsible for the transmission and distribution of electrical energy. Examples of network assets that can be included in the asset portfolio of a power network company are presented in IEC 63223-2:2026, 4.2.2.

IEC 62271-201:2026 is applicable to prefabricated solid-insulation enclosed switchgear and controlgear assemblies designed for:
– alternating current;
– rated voltages above 1 kV and up to and including 52 kV;
– service frequencies up to and including 60 Hz;
– indoor installation;
– areas limited to authorized personnel.
The assembly can include either air-insulated or fluid-filled compartments, or both.
For components installed in a solid-insulation enclosed switchgear and controlgear, this document supplements or even replaces in some cases, the requirements as stated by the individual product standards. The list of components which can be inside the solid-insulation enclosed switchgear and controlgear is not limited to the ones explicitly cited in this document. This third edition cancels and replaces the second edition published in 2014. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) aligned with the third edition of IEC 62271-200 published in 2021 and its Amendment 1 published in 2024, for structure, definitions, classifications, ratings and testing procedures, where appropriate;
b) clause numbering aligned with IEC 62271-1:2017, including the adoption of the subclause names of Clause 3;
c) in Clause 3 specific terms and definitions are added for "in service", "normal operating condition" and "normal use";
d) earthing circuit is more precisely described, including ratings and test requirements;
e) number of mechanical tests on interlocks is reduced for type testing;
f) forces to apply during type testing are better prescribed (refer to 7.102);
g) resistance measuring on main circuit is only needed before continuous current tests (as reference for routine tests) and not anymore needed after this continuous current test. Rationale for this deletion is that this measured resistance does not mean anything; as the temperature rise test was just finished, a new temperature rise test will not give new information;
h) IEC 62271-100:2021 has been taken into account in 7.101.2;
i) IEC 62271-107:2019 and IEC IEEE 62271-37-013:2021 are also considered in 7.101.2;
j) LSC category is more precisely described, including an explaining flowchart (Annex G);
k) examples not covered by the IAC test are transferred from Clause 6 to 9.103;
l) the term "assembly" is defined in Clause 3 and used as synonym for "solid-insulation enclosed switchgear and controlgear" in this document;
m) "metallic" is replaced by "metal" where applicable;
n) a 1 s rule was introduced for Criterion 4 during IAC tests regarding hot gases versus glowing particles as cause of ignition;
o) internal arc tests for switchgear with protrusions are more precisely described in Annex A;
p) partitions accessible in normal use are now PA, PB1 or PB2 instead of PI which has been removed (refer to 6.103.3)

IEC 62351-8:2026 is to facilitate role-based access control (RBAC) for power system management. RBAC assigns human users, automated systems, and software applications (collectively called "subjects" in this document) to specified "roles", and restricts their access to only those resources, which the security policies identify as necessary for their roles.
As electric power systems become more automated and cyber security concerns become more prominent, it is becoming increasingly critical to ensure that access to data (read, write, control, etc.) is restricted. As in many aspects of security, RBAC is not just a technology; it is a way of running a business. RBAC is not a new concept; in fact, it is used by many operating systems to control access to system resources. Specifically, RBAC provides an alternative to the all-or-nothing super-user model in which all subjects have access to all data, including control commands.
RBAC is a primary method to meet the security principle of least privilege, which states that no subject should be authorized more permissions than necessary for performing that subject’s task. With RBAC, authorization is separated from authentication. RBAC enables an organization to subdivide super-user capabilities and package them into special user accounts' termed roles for assignment to specific individuals according to their associated duties. This subdivision enables security policies to determine who or what systems are permitted access to which data in other systems. RBAC thus provides a means of reallocating system controls as defined by the organization policy. In particular, RBAC can protect sensitive system operations from inadvertent (or deliberate) actions by unauthorized users. Clearly RBAC is not confined to human users though; it applies equally well to automated systems and software applications, i.e., software parts operating independent of user interactions.
The following interactions are in scope:
– local (direct wired) access to the object by a human user, a local and automated computer agent, or a built-in human machine interface (HMI) or panel;
– remote (via dial-up or wireless media) access to the object by a human user;
– remote (via dial-up or wireless media) access to the object by a remote automated computer agent, e.g., another object at another substation, a distributed energy resource at an end-user’s facility, or a control centre application.
While this document defines a set of mandatory roles to be supported, the exchange format for defined specific or custom roles is also in scope of this document. This is achieved by defining two different encoding approaches to handle the definition of custom roles, either based on specific permissions or based on constraints to existing permissions. The definition on handling custom based roles was started in IEC 62351-90-1 and taken over into the IEC 62351-8:2020. Moreover, additionally to the definition of custom roles based on associated permissions, this document also includes options how to assign permissions to objects in a general way. Referencing documents will provide a mapping to a concrete data model to ensure an interoperability for standard roles used in different data models as well as for custom defined roles. Referencing documents might be standards such as IEC PAS 61850-90-19 or IEC 60870-5-7:2025 or also definitions by an operator.
Out of scope for this document are all topics which are not directly related to the definition of roles and access tokens for local and remote access, especially administrative or organizational tasks, such as:
– definition of usernames and password definitions/policies;
– management of keys and/or key exchange;
– engineering process of roles;
– assignment of roles;
– selection of trusted certification authorities issuing credentials (access tokens);
– defining the tasks of a security officer;
– integrating local policies in RBAC.
Existing standards (see ANSI INCITS 359-2004,

IEC TS 62461:2026 gives guidelines for the application of the uncertainty analysis accord­ing to ISO/IEC Guide 98‑3:2008 (GUM describing an analytical method for the uncertainty determination) and its Supplement 1:2008 (GUM S1 describing a Monte Carlo method for the uncertainty determination) for measurements of ionizing radiation. It does not include the uncertainty associated with the concept of the measuring quantity, e.g., the difference between Hp(10) on the ISO water slab phantom and on the person.
This document explains the principles of ISO/IEC Guide 98‑3:2008, its Supplement 1:2008 and the special considerations necessary for radiation protection at an example taken from individual dosimetry of external radiation.
This document is intended to assist the understanding of ISO/IEC Guide 98‑3:2008, ISO/IEC Guide 98‑3-SP1:2008 and other papers on uncertainty analysis. It cannot replace these papers, nor can it provide the background and justification of the arguments leading to the concept of ISO/IEC Guide 98‑3:2008 and ISO/IEC Guide 98‑3-SP1:2008.
Finally, this document gives a very simple method to judge whether a measured result is significantly different from zero or not based on ISO 11929.
This first edition of IEC TS 62461 cancels and replaces the second edition of IEC TR 62461 published in 2015. This edition includes the following significant technical changes with respect to the previous edition:
- several minor corrections;
- the addition of an example of the determination of the decision threshold and detection limit in accordance with ISO 11929.

IEC 61373:2026 specifies the requirements for testing items of equipment intended for use on railway vehicles which are subsequently subjected to vibrations and shock owing to the nature of railway operational environment. To gain assurance that the quality of the equipment is acceptable, it is exposed to tests of reasonable duration that simulate the service conditions seen throughout its expected life.
Simulated long-life testing can be achieved in a number of ways each having their associated advantages and disadvantages, the following being the most common:
a) amplification: where the amplitudes are increased and the time base decreased;
b) time compression: where the amplitude history is retained and the time base is decreased (increase of the frequency);
c) decimation: where time slices of the historical data are removed when the amplitudes are below a specified threshold value.
The amplification method as stated in item a) above, is used in this document and together with the publications referred to in Clause 2; it defines the default test procedure to be followed when vibration testing items for use on railway vehicles.
Whilst this document is primarily concerned with railway vehicles on fixed rail systems, its wider use is not precluded. For systems operating on pneumatic tyres, or other transportation systems such as trolleybuses, where the level of shock and vibration clearly differ from those obtained on fixed rail systems, specific test levels can be considered. In that case, the frequency spectra and the shock duration and amplitude are computed in compliance with the guidelines in Annex A.
Annex F provides the functional random vibration load that can be considered by the user for urban vehicles operating on pneumatic tyres.
This document applies to single axis testing. However, multi-axis testing is possible.
The anchoring bolts at the fixing point(s) of the equipment are not evaluated in this document.
This document is intended to evaluate equipment which is attached to the main structure of the vehicle (and components mounted thereon). It is not intended to test equipment which forms part of the main structure. Main structure in the sense of this document means car body, bogie and axle.
The following items are out of scope of this document:
– the traction motors for railway vehicles;
– any mechanical substructure not equipped with electrical, electronic or pneumatic component.
Additional or special vibration tests for some specific equipment are not specified in this document, for example:
a) equipment mounted on, or linked to, items which are known to produce defined frequency excitation;
b) equipment such as pantographs, shoegear, or suspension components which are known to be exposed to specific shock and vibration excitation;
c) equipment intended for use in special operational environments as specified by the customer;
d) transportation and handling tests.
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) consideration of specific ASD spectra from onboard measurements and certification limited to the specific case;
b) exclusion from the scope of applicability of traction motors and any substructure not equipped with electrical, electronic or pneumatic device;
c) clarification for order of testing and typical test sequence, taking into account the possibility of simultaneous multi-axis testing;
d) recommendation and guidance for removing resilient mounts of the equipment (if located between the equipment and the main structure) during the long-life test;
e) qualification of the fixture device used to attach the equipment to the test bench;
f) guidance for using a measuring point as a possibility to assess mechanical integrity;
g) change of the method to calculate the acceleration ratio which shall b

IEC 62674-1:2026 applies to fixed surface mount inductors and fixed surface mount ferrite beads. The object of this document is to define the terms necessary to describe the inductors covered by this document, provide recommendations for preferred characteristics, recommended performance, test methods and general guidance.
This edition includes the following significant technical changes with respect to the previous edition:
a) addition of dimensions for shape D;
b) addition of upper temperature for operating temperature ranges.

IEC 61850-7-410:2026 specifies the logical node classes for use in the domain of hydroelectric power stations, steam and gas turbines.
This IEC61850 domain information model standard utilizes the existing Logical Node (LN) classes defined in IEC 61850-7-4, Basic communication structure – Compatible logical node classes and data object classes where possible, while defining new and extended domain specific LN classes to provide the necessary data objects for application to functions and systems in the domain of hydroelectric power stations, steam and gas turbines. The domain information model includes the interface towards a central operator centre’s control functions.
The Scope of this document, related to steam and gas turbine specifics, is limited to overall control functions and generator and turbine control functions. For hydroelectric power, the scope includes the entire power station automation system.
Edition 3 is intended to form a basis for extensions in local implementations. Such extensions may be defined in profiles. Many of the Logical Nodes defined in this document are designed to be suitable for use in domains beyond the scope of hydro power plants and steam and gas turbines. A suggested structure of the Logical Nodes into packages for integration with other domains is provided in Annex G (informative), Migration of this document to the future edition of IEC 61850.
This third edition cancels and replaces the second edition published in 2012 and Amendment 1:2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) New concepts and constructs for modelling of large power generation;
b) Addition of new Logical Nodes to cover systems and details of the power generation domain previously not modelled in a sufficient way;
c) Review of existing Logical Nodes concerning structure, use of Common Data Classes and naming;
d) Fixes and improvements of some names and descriptions of Data Objects;
e) Improvements of the structure and enumerations within the Domain Logical Nodes;
f) Addition of new Logical Nodes with respect to maintenance and supervision functionality;
g) Updating of Logical Nodes for PSS functionality (LNs: APSS, APST and APSF) reflecting the updated PSS standard IEEE 421.5:2016;
h) Incorporation of Amendment 1, including among other things the Group E Logical Nodes;
i) Resolutions to all known UML Issues related to IEC 61850-7-410;
j) This 3rd edition is autogenerated from the UML file;
k) Upon publication the updated IEC 61850-7-410 NameSpace will be made available as a Code Component on the TC57 web page.
In the Edition 3 of this document, a new modelling approach is applied. In order to achieve greater efficiency and harmonization of the IEC 61850 information model by streamlining the Namespaces it is divided into, the structure of the latest revisions of the Namespaces related to the power generation domain, aims to:
– share common concepts, approaches, and models in the generation domains,
– increase the modularity of the model itself and enable its extension.
This edition hence introduces a new modeling approach, which is further explained in Clause 5. The pillars upon which the new approach is founded are as follows:
– a layered architecture for the power station model, in accordance with the control hierarchy concepts defined in IEC 60050-351-55;
– a comprehensive review of the models considering the approach outlined in IEC 61850-7-420:2021, aimed at harmonizing fundamental concepts in the power generation domain;
– a systematic alignment with the concepts outlined in IEC 61850-7-500:2017.
Specific aspects typical of the large power generation domain are also addressed in the present document. The relationship between concepts described in this document and the ones of related standards can be found in Annex B and Annex C.
In addition to this objective, Edition 3 provides c

IEC 60335-2-2:2026 deals with the safety of electric vacuum cleaners and water suction cleaning appliances for household and similar purposes, their rated voltage being not more than 250 V for single phase (AC) supplied appliances, direct current (DC) supplied appliances and battery-operated appliances and 480 V for multi-phase centrally-sited vacuum cleaners. This standard also applies to vacuum cleaners for animal grooming, centrally-sited vacuum cleaners, and automatic battery-operated cleaners.
This standard also applies to spray extraction appliances in which
– the pressure of the employed liquid solution does not exceed 2,5 MPa;
– the product of the pressure (in MPa) and the flow of liquid solution (in litres per minute) do not exceed 100; and
– the temperature of the liquid solution at the spray nozzle outlet does not exceed 60 °C.
This standard also applies to vacuum cleaners and water suction cleaning appliances provided with a blowing function or inflating function.
This standard also applies to motorized cleaning heads and current-carrying hoses associated with a particular vacuum cleaner or water suction cleaning appliance.
Appliances not intended for normal household use, but which nevertheless can be a source of danger to the public, such as appliances intended to be used by laypersons in shops and other premises for normal housekeeping purposes, are within the scope of this standard.
Examples of appliances for household use are appliances for typical housekeeping functions used in the household environment that can also be used by non-expert users for typical intermittent housekeeping functions:
– in shops, schools and other similar working environments;
– in farm houses;
– by clients in hotels, motels and other residential type environments;
– in bed and breakfast type environments.
Household environments include the dwelling and its associated buildings, the garden, etc.
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, the national water supply authorities and similar authorities.
This standard does not apply to
– appliances intended exclusively for industrial purposes;
– 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);
– wet and dry vacuum cleaners, including power brush, for commercial use (IEC 60335-2-69);
– floor treatment and wet scrubbing machines, including rug shampooers, for household and similar use (IEC 60335-2-10);
– hand-held mains-operated garden blowers, vacuums and blower vacuums (IEC 60335 2 100, IEC 62841-4-6);
– spray extraction machines for commercial use (IEC 60335-2-68);
– high-pressure cleaners and steam cleaners (with a rated pressure not less than 2,5 MPa) (IEC 60335-2-79);
– appliances having vacuum-pressure functions for skin care (IEC 60335-2-115).
This eighth edition cancels and replaces the seventh edition published in 2019. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
– alignment with IEC 60335-1:2020;
– conversion of some notes to normative text (Clause 1);
– addition of multi-phase central vacuum cleaners to the scope (Clause 1);
–

IEC TS 63346-2-2:2026 provides common rules and specific requirements for the design of low voltage DC auxiliary power systems (APSs) intended to be installed in substations, mainly covering the configuration of DC power sources, system wiring, electric equipment selection and physical layout. For the purpose of interpreting this document, a DC APS in this document is considered as follows.
Its scope covers from the low voltage AC input of the charger to the DC input points of loads. Though DC load is discussed where necessary, the load itself is beyond the scope of this document.
Unless particularly stated, DC APS refers to the system using lead-acid and nickel-cadmium cells which are connected in series. The system using parallel cells can implement this document by reference.
Substations in this document refer to those which are part of an electrical system and contain equipment that either receives and distributes electrical energy or transforms voltages to the levels required by the loads they supply, or both.
This document does not apply to the design of any of the following: traction substation, which have different power supply requirements, such as unbalanced load power supply and harmonic behaviour;
offshore substations, as factors such as waves, typhoons, salt spray, etc. need to be taken into account, which have different requirements for power supply and equipment selection; the substation connecting a nuclear power plant to the grid and its associated LV APS integrated with the nuclear power plant.

IEC 61300-2-2:2026 evaluates the effects of a number of successive cycles of mating and un-mating of fibre optic connectors or other interconnecting devices on optical performance and mechanical degradation of the component under normal usage conditions.
This edition includes the following significant technical changes with respect to the previous edition:
a) definition of the mating durability test also for a plug-receptacle configuration of the device under test (DUT);
b) deletion of measurement condition B;
c) definition of a unique measurement condition;
d) addition of performance categories in the severities;
e) introduction of new severity levels for connectors and hardened connectors;
f) definition of new cleaning criteria during mating durability test;
g) deletion of performance category E in the severities.

IEC 603352-120:2024 deals with the safety of appliances for generation of directly inhalable aerosols, their rated voltage being not more than 250 V for single-phase appliances, and other appliances including direct current (DC) supplied appliances and battery-operated appliances.
Examples of the appliances that are within the scope of this standard are:
- vapour and aerosol appliances;
- personal vaping appliances with or without nicotine;
- electronic cigarettes;
- electronic nicotine delivery systems (ENDS);
- electronic non-nicotine delivery systems (ENNDS);
- electronic tobacco heating appliances for heated tobacco products.
This standard does not apply to:
- medical ventilators,
- humidifiers (IEC 60335-2-98).
These requirements do not cover the consumables, such as e-liquids and other inhaled aerosol substances, wicks, and other particulate matter inhaled during use, nor do they cover substances in the emissions from the operation of the appliances. For example, heavy metal emissions in the aerosol and environmental exposure are not covered by this standard. These requirements do not consider the physiological effects of any consumable used with the appliances. This International Standard does not cover requirements or prohibitions of the labelling, packaging and contents of nicotine-containing or nicotine-consuming products that are strictly regulated by law of the relevant jurisdiction.

IEC TS 62607-4-10:2026, which is a Technical Specification, establishes standardized methods to determine the electrochemical key control characteristics, including:
• specific capacitance, voltage maintenance rate, endurance in cycling and temperature endurance of carbon nanomaterials by determining the standard coin-type EDLC.
The electrochemical key control characteristics are derived by calculating the recording curve at the specific charging and discharging process.
• The document is applicable for coin-type EDLC assembled from carbon nanomaterials, such as nanoporous activated carbon, carbon aerogel, carbon nanotube, carbon black, graphene, nano graphite sheet, vapor-grown carbon fibre and so on.
• Typical application areas of this method are research, manufacturer and downstream use to guide material processing and quality control.

IEC TS 62607-4-9:2026, which is a Technical Specification, establishes a standardized method for assembling
• coin-cell EDLCs
in order to characterize the electrochemical key control characteristic of carbon nanomaterials.
The coin-cell EDLC is fabricated through sequential steps: electrode slurry preparation (mixing), coating, rolling, cutting, weighing, and final assembly.
• The document specifies the assembly process and data recording.
• The document is applicable for carbon nanomaterials used in EDLC as active material or conductive agents, such as nanoporous activated carbon, carbon aerogel, carbon nanotube, carbon black, graphene, nano graphite sheet, vapour-grown carbon fibre and so on.
• Typical application areas of this method are research, manufacturer and downstream user to guide material processing and quality control

IEC 62228-7:2026 specifies test and measurement methods for the EMC evaluation of CXPI transceiver ICs under network condition. It defines test configurations, test conditions, test signals, failure criteria, test procedures, test setups and test boards. This specification is applicable for standard CXPI transceiver ICs and ICs with embedded CXPI transceiver and covers:
- the emission of RF disturbances;
- the immunity against RF disturbances;
- the immunity against impulses;
- the immunity against electrostatic discharges (ESD).
This edition includes the following significant technical changes with respect to the previous edition:
a) change transceiver terms and definitions from master to commander and slave to responder in 3.1.5 and 3.1.6.
b) change test configuration for embedded transceiver in 5.3.1 and add on Figure A.4 accordingly.
c) change the definition of TX2 test signal for Type-B transceiver in 5.4.2.
d) add examples for test limits in Annex C.

IEC 62885-2:2026 is applicable for measurements of the performance of mains-operated and cordless dry vacuum cleaners, including water filter vacuum cleaners for household or similar use. Table D.1 of Annex D is applicable to measurements of the performance of cordless dry vacuum cleaners for household use or under conditions similar to those in households. The results obtained under this annex are intended to be comparable to the results obtained for mains-operated vacuum cleaners. The purpose of Annex D is to specify additional requirements for measurements of cordless dry vacuum cleaners. Cleaning robots are evaluated to IEC/ASTM 62885-7. Handheld dry vacuum cleaners are excluded, except for 5.10.2 and 5.11. Measurements of the performance of mains-operated commercial dry vacuum cleaners are found in IEC 62885-8. The purpose of this document is to specify essential performance characteristics of dry vacuum cleaners which are of interest to users and to describe methods for measuring these characteristics. Due to the influence of environmental conditions, variations in time, origin of test materials and proficiency of the operator, some of the described test methods will give more reliable results when applied for comparative testing of a number of appliances at the same time, in the same laboratory and by the same operator. The methods here can be applied with modifications for surface-cleaning product types or technologies not currently covered within the scope. For safety requirements, reference is made to IEC 60335-1:2020 and IEC 60335-2-2. A recommendation on information for the consumer at the point of sale is given in Annex B. This third edition of IEC 62885-2 cancels and replaces the second edition published in 2021. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) relocation of RSB annexes to IEC TS 62885-1;
b) relocation of remaining test materials, test dust, and equipment to IEC TS 62885-1;
c) reduced number of test strokes from 5 double strokes to 3 double strokes except as specifically required;
d) relocated requirements for cordless products, except for battery-related items, from IEC 62885-4 to a new Annex D;
e) added definition and instructions for a universal dry nozzle;
f) relocated air data equipment to IEC TS 62885-1, relocated formulae to 5.11, and made revisions to air data requirements;
g) relocated dust re-emission equipment to IEC TS 62885-1.

IEC 63066:2026 applies to docking connectors (hereinafter referred to as accessories) incorporated in or fixed to electrical equipment, intended to connect energy storage units, either removable or swappable, or both, to a dedicated electric power conversion unit, to an energy consuming unit or to another energy storage unit.
These accessories are intended for DC and can include either a protective earth contact or optional auxiliary contacts for signalling and data transmission, or both. These accessories have a rated current of up to 2 000 A and rated operating voltages not exceeding 1 500 V DC.
This first edition cancels and replaces the first edition of IEC TS 63066 published in 2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) introduction of standard sheets;
b) alignment with IEC 60309‑1:2021;
c) technical improvements, e.g. short circuit tests according the I2t- methodology.

IEC TR 62271-322: 2026 describes trends and the state-of-the-art of digital technologies enabling their use in switchgear and controlgear along their life cycle. The report is a guidance for the IEC TC17 and supported by use cases or by emerging technologies, able to be implemented in power grids. The report can be used by designers, asset managers and any stakeholder dealing with interoperable and digital technologies for a switchgear and controlgear over their whole life cycle. The document consists of three main parts.
Clause 4 describes the trends in user exploitation of digital technologies within the switchgear and controlgear. Clause 5 focuses on trends regarding technology and consequences for system architectures. Clause 6 gives guidance for use of new technologies in substations.
This edition includes the following significant technical changes with respect to the previous edition:
a) IEC numbering has been modified;
b) title has been modified;
c) updates in the field of digital technologies, like Internet of Things, cloud and edge computing, digital twins, artificial intelligence and cybersecurity have been added; in accordance with the IEC strategy themes and goals;
d) synchronization and updates in the context of the latest standards of TC 17: IEC 62271-1 and IEC 62271-3;
e) Bibliography has been added.

IEC 61811-1:2015 applies to electromechanical telecom elementary relays. Relays according to this standard are provided for the operation in telecommunication applications. However, as electromechanical elementary relays, they are also suitable for particular industrial and other applications. This standard selects from IEC 61810 series and other sources the appropriate methods of test to be used in detail specifications derived from this specification, and contains basic test schedules to be used in the preparation of such specifications in accordance with this standard. Detailed test schedules are contained in the detail specifications. This second edition of IEC 61811-1 cancels and replaces IEC 61811-1 published in 1999, IEC 61811-10 published in 2002, IEC 61811-11 published in 2002, IEC 61811-50 published in 2002, IEC 61811-51 published in 2002, IEC 61811-52 published in 2002, IEC 61811-53 published in 2002, IEC 61811-54 published in 2002, IEC 61811-55 published in 2002, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous editions:
a) to get one document for telecom relays;
b) update all relevant references.

IEC 60076-4:2026 applies to lightning and switching impulse tests on power transformers and reactors. Information is given on waveforms, test circuits including test connections, earthing practices, failure detection methods, test procedures, measuring techniques and interpretation of results.