29 - ELECTRICAL ENGINEERING
ICS 29 Details
ELECTRICAL ENGINEERING
ELEKTROTECHNIK
ELECTROTECHNIQUE
ELEKTROTEHNIKA
General Information
Frequently Asked Questions
ICS 29 is a classification code in the International Classification for Standards (ICS) system. It covers "ELECTRICAL ENGINEERING". The ICS is a hierarchical classification system used to organize international, regional, and national standards, facilitating the search and identification of standards across different fields.
There are 19854 standards classified under ICS 29 (ELECTRICAL ENGINEERING). These standards are published by international and regional standardization bodies including ISO, IEC, CEN, CENELEC, and ETSI.
The International Classification for Standards (ICS) is a hierarchical classification system maintained by ISO to organize standards and related documents. It uses a three-level structure with field (2 digits), group (3 digits), and sub-group (2 digits) codes. The ICS helps users find standards by subject area and enables statistical analysis of standards development activities.
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IEC 60086-2-2:2026 is applicable to primary batteries which are based on standardised lithium (non-aqueous) electrochemical systems.
It specifies:
- the physical dimensions,
- the discharge test conditions and discharge performance requirements.
This first edition cancels and replaces the fourteenth edition of IEC 60086-2 published in 2021. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) separation of batteries with aqueous electrolyte into a separate Part 2-1: Physical and electrical specifications;
b) maximum open circuit voltage of FR10G445 and FR14505 was changed from 1,83 to 1,90 V;
c) load of digital audio test for FR10G445 was changed from 50 mA to 75 mA and MAD was modified;
d) portable lighting test was added for FR10G445;
e) motor/toy and radio /clock /remote control test was added for FR14505;
f) in Clause 3, terms were reordered according their functions: electrochemical systems, electrochemical systems, electrical characteristics and specifications;
g) Annex D for common designation of IEC 60086 2:2021 was moved to IEC 60086 1:2026, as Annex H;
h) Annex E for Compliance checklist of IEC 60086 2:2021 was removed and merged into Annex J of IEC 60086 1:2026.
- Standard31 pagesEnglish languagee-Library read for1 day
IEC 60086-2-1:2026 is applicable to primary batteries which are based on standardised electrochemical systems using aqueous electrolytes.
It specifies:
- the physical dimensions,
- the discharge test conditions and discharge performance requirements.
IEC 60086-2-1: 2026 cancels and replaces the fourteenth edition of IEC 60086 2 published in 2021. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) separation of lithium batteries into IEC 60086-2-2: Physical and electrical specifications;
b) in Clause 3, terms were reordered according to their functions: electrochemical systems, electrical characteristics and specifications;
c) TR03 and TR6 were added in Category 1, Round batteries;
d) load of digital audio test for LR03, TR03 and R03 was changed from 50 mA to 75 mA and MAD was modified;
e) personal grooming test of LR6 was added instead of high drain application test;
f) high drain application test was added for TR6;
g) radio /clock /remote control test was added for R6S;
h) CD, digital audio, wireless gaming and accessories test was removed for LR6, R6P and R6S;
i) 4,5 V of common designation was added for 3LR12, 3R12P and 3R12S;
j) Annex D for common designation of IEC 60086 2:2021 was moved to IEC 60086 1:2026, as Annex H;
k) Annex E for Compliance checklist of IEC 60086 2:2021 was removed and merged into Annex J of IEC 60086 1:2026.
- Standard53 pagesEnglish languagee-Library read for1 day
This document specifies requirements, recommendations, and examples for implementing a risk-informed decision-making (RIDM) process for managing existing network assets in power systems. The intended audience concerns power network organizations' stakeholders and decision makers, such as asset managers, risk managers, regulators, asset owners, and service providers. The RIDM process details the steps to ensure transparency, consistency, and traceability of the decision by:
– specifying the risk decision-making context depending on asset management objectives, available knowledge, and risk stakeholders' concerns;
– identifying the appropriate risk management strategies and the knowledge supporting the analyses;
– detailing the essential steps for conducting a risk analysis and justifying investments, regardless of the calculation methods used;
– providing essential information and warnings to decision makers;
– implementing performance evaluation and continuous improvement.
The document is based on the asset management principles from ISO 55000:2024 [1] and is aligned with ISO 55001:2024 [2]. Compliance with the requirements of this document is independent of compliance with ISO 55001:2024 [2].
- Standard32 pagesEnglish languagee-Library read for1 day
This part of IEC 61850 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.
- Standard686 pagesEnglish languagee-Library read for1 day
This part of IEC 62271 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.
- Standard121 pagesEnglish languagee-Library read for1 day
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.
- Standard75 pagesEnglish languagee-Library read for1 day
- Draft67 pagesEnglish languagee-Library read for1 day
IEC 60086-2-2:2026 is applicable to primary batteries which are based on standardised lithium (non-aqueous) electrochemical systems. It specifies: - the physical dimensions, - the discharge test conditions and discharge performance requirements. This first edition cancels and replaces the fourteenth edition of IEC 60086-2 published in 2021. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) separation of batteries with aqueous electrolyte into a separate Part 2-1: Physical and electrical specifications; b) maximum open circuit voltage of FR10G445 and FR14505 was changed from 1,83 to 1,90 V; c) load of digital audio test for FR10G445 was changed from 50 mA to 75 mA and MAD was modified; d) portable lighting test was added for FR10G445; e) motor/toy and radio /clock /remote control test was added for FR14505; f) in Clause 3, terms were reordered according their functions: electrochemical systems, electrochemical systems, electrical characteristics and specifications; g) Annex D for common designation of IEC 60086 2:2021 was moved to IEC 60086 1:2026, as Annex H; h) Annex E for Compliance checklist of IEC 60086 2:2021 was removed and merged into Annex J of IEC 60086 1:2026.
- Standard31 pagesEnglish languagee-Library read for1 day
- Draft3 pagesEnglish languagee-Library read for1 day
IEC 60127-4:2026 relates to universal modular fuse-links (UMF) for printed circuits and other substrate systems, used for the protection of electric appliances, electronic equipment, and component parts thereof, normally intended to be used indoors. It does not apply to fuse-links for appliances intended to be used under special conditions, such as in a corrosive or explosive atmosphere. These fuses are normally intended to be mounted or replaced only by appropriately skilled persons using specialized equipment. This document applies in addition to the requirements of IEC 60127-1. The objectives of this part of IEC 60127 are as given in IEC 60127-1, with the additional requirement of a degree of non-interchangeability. This fourth edition cancels and replaces the third edition published in 2005, Amendment 1:2008 and Amendment 2:2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) align to IEC 60127-1:2023, third edition; b) enhance the rated current of UMFs to 100A and provide the corresponding maximum voltage drop and maximum sustained dissipation; c) modify the figures; d) update the normative references to the latest version. This International Standard is to be used in conjunction with IEC 60127-1:2023
- Draft33 pagesEnglish languagee-Library read for1 day
- Draft46 pagesEnglish languagee-Library read for1 day
This part of IEC 62271 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.
- Standard121 pagesEnglish languagee-Library read for1 day
IEC 60086-2-1:2026 is applicable to primary batteries which are based on standardised electrochemical systems using aqueous electrolytes. It specifies: - the physical dimensions, - the discharge test conditions and discharge performance requirements. IEC 60086-2-1: 2026 cancels and replaces the fourteenth edition of IEC 60086 2 published in 2021. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) separation of lithium batteries into IEC 60086-2-2: Physical and electrical specifications; b) in Clause 3, terms were reordered according to their functions: electrochemical systems, electrical characteristics and specifications; c) TR03 and TR6 were added in Category 1, Round batteries; d) load of digital audio test for LR03, TR03 and R03 was changed from 50 mA to 75 mA and MAD was modified; e) personal grooming test of LR6 was added instead of high drain application test; f) high drain application test was added for TR6; g) radio /clock /remote control test was added for R6S; h) CD, digital audio, wireless gaming and accessories test was removed for LR6, R6P and R6S; i) 4,5 V of common designation was added for 3LR12, 3R12P and 3R12S; j) Annex D for common designation of IEC 60086 2:2021 was moved to IEC 60086 1:2026, as Annex H; k) Annex E for Compliance checklist of IEC 60086 2:2021 was removed and merged into Annex J of IEC 60086 1:2026.
- Standard53 pagesEnglish languagee-Library read for1 day
- Corrigendum3 pagesEnglish and French languagee-Library read for1 day
IEC 60695-5-2:2026 summarises the test methods that are used in the assessment of the corrosivity of fire effluent. It presents a brief summary of test methods in common use, either as international standards, national or industry standards. It includes special observations on their relevance, for electrotechnical products and their materials, to real fire scenarios and gives recommendations on their use.
This first edition cancels and replaces the third edition of IEC TS 60695-5-2 published in 2021. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC TS 60695-5-2:
a) 4.4, The nature of the corrosivity measurement, has been added to follow recent technological developments;
b) 5.2, Tests for the determination of halogen acid in combustion gases, has been updated following the recent development of IEC 60754.
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- Standard46 pagesEnglish and French languagesale 15% off
- Standard46 pagesEnglish and French languagesale 15% off
IEC 62561-8:2026 specifies the requirements and tests for components used for electrically insulated LPS. These components, which can reduce the separation distance, are as follows:
- insulating stand-offs, used in conjunction with an air-termination system and down-conductors with the aim of maintaining the proper separation distance;
- insulating down‑conductors, including their specific fasteners.
Testing of insulating stand-offs and insulating down-conductor components for an explosive atmosphere is not covered by this document. This first edition cancels and replaces IEC TS 62561-8 published in 2018. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to IEC TC 62561-8:2018:
a) title and scope of the standard has been adjusted;
b) the document has been updated in line with IEC 60068-2-52:2017 on salt mist treatment;
c) the document has been updated in line with ISO 22479:2019 on humid sulphureous atmosphere treatment;
d) two different possible example configurations for pull out tests have been introduced;
e) additional information on pollution has been included;
f) an alternate test arrangement for high voltage impulse test has been included;
g) a new normative Annex H for applicability of previous tests has been introduced;
h) pass criteria for high voltage impulse testing updated;
i) explanation on high voltage impulse testing with negative polarity has been added.
- Standard58 pagesEnglish languagee-Library read for1 day
This document specifies three techniques for the determination of free Bisphenol A (BPA) in plastics of electrotechnical products.
This document describes the use of liquid chromatography–diode array detector (LC-DAD), liquid chromatography mass spectrometry (LC-MS), liquid chromatography tandem mass spectrometry (LC-MS/MS) with these test methods detailed in Annex A and Annex B.
These test methods have been evaluated for use with PC, PC/ABS, PP matrices containing free BPA between 20 mg/kg to 500 mg/kg as shown in the Pre-IIS 13 results in Annex C and IIS 13 results in Annex D [1], [2]. The use of these methods for BPA concentration ranges of plastics, other than those specified in Annex C and Annex D, has not been evaluated.
This document is a basic environment horizontal publication focusing on test methods and is primarily intended for use by committees in the preparation of publications within the area of environment in accordance with the principles laid down in IEC Guide 123. Wherever applicable, it is the responsibility of committees to make use of environment basic publications in the preparation of their environment group and product publications. Committees can apply this document directly to products when they do not develop a product publication in the area of environment.
WARNING – Persons using this document should be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.
- Standard35 pagesEnglish languagee-Library read for1 day
This document specifies requirements and provides guidance for the sustainable management of waste electrical and electronic equipment (e-waste) for all process steps, from collection to returning recovered products, components, materials or energy to the value chain. It includes traceability, monitoring and evaluation of the e-waste flow, recovery rate and recovery quality.
This document is intended for use by an organization involved in e-waste management seeking to manage its responsibilities in a systematic manner.
The requirements set by this document will help an organization to achieve sustainability outcomes within the context of e-waste management, including:
– enhancement of organizations' performance in relation to quality, environment and occupational health and safety;
– fulfilment of compliance obligations.
This document is applicable to any organization, regardless of its size, type and nature.
This document applies to the environmental, health and safety, and quality aspects of e-waste management activities that the organization determines it can either control or influence, from a lifecycle perspective.
NOTE 1 Social aspects – e.g. employment creation, conflict minerals, employment conditions – are not addressed directly but indirectly through the benefits of sustainable management of e-waste.
NOTE 2 Additional local requirements or regulations can apply.
This document is a basic environment horizontal publication focusing on essential requirements and is primarily intended for use by committees in the preparation of publications within the area of environment in accordance with the principles laid down in IEC Guide 123. Wherever applicable, it is the responsibility of committees to make use of environment basic publications in the preparation of their environment group and product publications. Committees can apply this document directly to products when they do not develop a product publication in the area of environment.
- Standard54 pagesEnglish languagee-Library read for1 day
This part of IEC 63522 is used for testing along with the appropriate severities and conditions for measurements and tests designed to assess the ability of DUTs to perform under expected conditions of transportation, storage and all aspects of operational use.
This document defines a standard test method for impulse voltage test.
- Standard13 pagesEnglish languagee-Library read for1 day
IEC 60127-7:2026 covers requirements for miniature fuse-links for special applications. This part of IEC 60127 is applicable to fuse-links with a rated voltage not exceeding 1 000 V, a rated current not exceeding 125 A and a rated breaking capacity not exceeding 50 kA. It does not apply to fuses completely covered by the subsequent parts of IEC 60269-1. It does not apply to miniature fuse-links for appliances intended to be used under special conditions, such as in corrosive or explosive atmospheres.
- Standard34 pagesEnglish languagee-Library read for1 day
This document specifies requirements, recommendations, and examples for implementing a risk-informed decision-making (RIDM) process for managing existing network assets in power systems. The intended audience concerns power network organizations' stakeholders and decision makers, such as asset managers, risk managers, regulators, asset owners, and service providers. The RIDM process details the steps to ensure transparency, consistency, and traceability of the decision by:
– specifying the risk decision-making context depending on asset management objectives, available knowledge, and risk stakeholders' concerns;
– identifying the appropriate risk management strategies and the knowledge supporting the analyses;
– detailing the essential steps for conducting a risk analysis and justifying investments, regardless of the calculation methods used;
– providing essential information and warnings to decision makers;
– implementing performance evaluation and continuous improvement.
The document is based on the asset management principles from ISO 55000:2024 [1] and is aligned with ISO 55001:2024 [2]. Compliance with the requirements of this document is independent of compliance with ISO 55001:2024 [2].
- Standard32 pagesEnglish languagee-Library read for1 day
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.
- Standard75 pagesEnglish languagee-Library read for1 day
- Draft5 pagesEnglish languagee-Library read for1 day
IEC 62590-2-2:2026 describes functions and working principles, specifies requirements, interfaces, and test methods for controlled converters for DC electric traction power supply systems:
– AC/DC converters:
• rectifiers,
• inverters,
• combinations.
– DC converters.
The purpose of the converters can be a power connection to other power networks or energy storages.
The common characteristic of this equipment is the possibility to influence the power flow in the DC electric traction power supply system. The converters can be:
– line-commutated;
– self-commutated.
This document applies to fixed installations of the following electric traction systems:
– railway networks,
– metropolitan transport networks including metros, tramways, trolleybuses and fully automated transport systems, magnetic levitated transport systems, and electric road systems.
- Standard49 pagesEnglish languagee-Library read for1 day
IEC 62680-1-2:2026, the USB Power Delivery specification defines a power delivery system covering all elements of a USB system including USB Hosts, USB Devices, Hubs, Chargers and cable assemblies. This specification describes the architecture, protocols, power supply behavior, connectors and cabling necessary for managing power delivery over USB at up to 100W in SPR Mode and 240W in EPR Mode. This specification is intended to be fully compatible with and extend the existing USB infrastructure. It is intended that this specification will allow system OEMs, power supply and Peripheral developers adequate flexibility for product versatility and market differentiation without losing backwards compatibility.
IEC 62680-1-2:2026 cancels and replaces the seventh edition published in 2024 and constitutes a technical revision.
Extended Power Range (EPR) including Adjustable Voltage Supply (AVS) has been added. This document is the USB-IF publication Universal Serial Bus Power Delivery Specification Revision 3.2, Version 1.1.
- Standard1052 pagesEnglish languagee-Library read for1 day
This part of the EN IEC 61360 specifies the new data dictionary (domain) “IEC 61360-7 - General items” including its generic concepts. The IEC 61360-7 data dictionary provides concepts (dictionary elements e.g. classes, properties) intended for cross-domain use.
- Standard14 pagesEnglish languagee-Library read for1 day
IEC 81346-14:2026, published jointly by IEC and ISO, provides, in combination with IEC 81346‑1 and IEC 81346‑2, rules and recommendations on the structuring of systems and the information on systems of manufacturing systems. It also provides additional classification schemes to those of IEC 81346‑2 for use in reference designations within manufacturing systems. It is published as a double logo standard.
The structuring principles and the classes of objects are intended to provide a clear identification and localization of the objects, and for use in their labelling in the manufacturing plant, for their designation in technical documents and for the designation of the technical documents as well.
The requirements in this document apply for processing, transportation and storage of products, as well as for systems to support the manufacturing process such as electrical systems, management systems and waste disposal systems.
This document applies to different areas within the manufacturing industry such as light industry, electrical and optical industry, chemical industry, material industry and heavy industry.
This document is not applicable for designations related to product individuals (e.g. inventory number, serial number) nor to the products manufactured.
This document is also a horizontal publication intended for use by technical committees in preparation of publications related to reference designations in accordance with the principles laid down in IEC Guide 108.
- Standard32 pagesEnglish languagee-Library read for1 day
IEC 61111:2026 is applicable to electrical insulating matting made of flexible insulating material for use as a covering of the surface on which the worker is positioned and for worker´s electrical protection on electrical installations up to 36 000 V AC for AC use or 36 000 V AC and 54 000 V DC for AC/DC use.
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- Standard78 pagesEnglish and French languagesale 15% off
- Standard78 pagesEnglish and French languagesale 15% off
IEC TS 60695-11-12:2026 describes a test method intended to investigate whether the bottom part of an enclosure having openings is able to contain the burning droplets inside the enclosure if ignition occurs inside a finished unit.
The purpose of the test is to verify whether the size of the openings in the bottom part of an enclosure are of such a size that reduces the risk of propagation of a flame outside the enclosure of a finished unit .
This technical specification is intended to be used by technical committees in the preparation of documents in accordance with the principles laid down in IEC GUIDE 104 and ISO/IEC Guide 51. While this document currently does not have the status of a horizontal safety publication, it is intended to become one if the document is transformed into an International Standard.
- Technical specification11 pagesEnglish languagesale 15% off
IEC 60310:2026 specifies the terms and definitions, classification, service conditions, characteristics and test methods for transformers and inductors on board rolling stock. This document is applicable to traction and auxiliary power transformers installed on board rolling stock and to the various types of power inductors inserted in the traction and auxiliary circuits of rolling stock, of dry or liquid-immersed design. This document is also applicable to the traction transformers of three-phase AC line-side powered vehicles and to the transformers inserted in the single-phase or polyphase auxiliary circuits of vehicles, after agreement between purchaser and manufacturer. This document does not apply to instrument transformers, transformers of a rated output below 1 kVA single-phase or 5 kVA poly-phase, and inductors of a rated output below 1 kVAR single-phase or 5 kVAR poly-phase on board rolling stock. This document does not cover accessories such as tap changers, resistors, heat exchangers, fans, etc., intended for mounting on transformers or inductors, which are tested separately according to the relevant rules. 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) typical circuits for transformer and inductors are added;
b) letter symbols for cooling methods are added;
c) dielectric test table is modified;
d) subclauses for the tests of transformers and inductors are restructured;
e) temperature test for dry type transformer and dry type inductors are separated in different subclauses;
f) requirements for shock and vibration tests are updated according to IEC 61373:20.
- Standard81 pagesEnglish languagee-Library read for1 day
This document specifies
- the service conditions;
- rated characteristics;
- general structural requirements; and
- test methods
of prefabricated traction substations for use in AC and DC electric traction systems, which as a minimum contain an enclosure and a traction switchgear designed and manufactured according to
- EN 50123 6 in DC electric traction systems;
- CLC/TS 50152 4 in AC electric traction systems.
Traction substations using non-type tested traction switchgear are covered by EN IEC 61936 1:2021.
NOTE 1 Due to the type testing requirements on the prefabricated traction substations only type tested traction switchgear is considered.
The enclosures of the prefabricated traction substations for use in AC and DC electric traction systems are
- designed for outdoor installation at locations with or without public accessibility;
- connected by insulated cable;
- operated from inside (walk-in type) or outside (non-walk-in type).
NOTE 2 Prefabricated traction substations for railway applications are typically of the walk-in type due to the rating and resulting dimensions of the AC or DC traction switchgear.
Prefabricated traction substations can be situated at ground level or partially or completely below ground level.
In general a prefabricated traction substation comprises an enclosure, a traction switchgear and can include the following additional main components:
- power transformers;
- electronic power converters;
- high-voltage and/or low-voltage switchgear and controlgear;
- high-voltage and/or low-voltage interconnections;
- auxiliary equipment and circuits.
However, relevant provisions of this document are applicable to designs where not all these main components exist.
NOTE 3 The term "main component”"is defined in 3.3.103 of EN IEC 62271 202:2022.
NOTE 4 For example, a switching station in an AC electric traction system consisting of an AC metal-enclosed traction switchgear and auxiliary circuits only.
NOTE 5 EN IEC 61936 1:2021 provides general rules for the design and erection of high-voltage power installations. As well, it specifies additional requirements for the external connections, erection and operation at the place of installation of high-voltage prefabricated traction substations compliant with EN IEC 62271 202:2022, which are regarded as a main component of such installation. Non-prefabricated traction substations, are generally covered by EN IEC 61936 1:2021.
This document covers designs using natural ventilation and/or any other kind of cooling system.
Due to the large number of different main components being addressed in this document the expression "main components shall comply with (the applicable subclause of) their specific product standard" is used in this document. This means that reference is to
- EN 50123 6:2003 for DC traction switchgear;
- to other parts of the EN 50123 series for switching devices also measurement, control and protection devices for DC traction applications;
- CLC/TS 50152 4:2021 for AC traction switchgear;
- other parts of the EN 50152 series for switching devices and also measurement, control and protection devices for AC traction applications;
- EN 50328:2003 for electronic power converters;
- EN 50329:2003 for traction power transformers;
- EN IEC 61439-1:2021 for low-voltage non-traction switchgear; and
- EN IEC 62271 200:2021 for high-voltage non-traction switchgear.
- Technical specification55 pagesEnglish languagee-Library read for1 day
This part of IEC 63522 is used for testing along with the appropriate severities and conditions for measurements and tests designed to assess the ability of DUTs to perform under expected conditions of transportation, storage and all aspects of operational use.
This document defines a standard test method for impulse voltage test.
- Standard13 pagesEnglish languagee-Library read for1 day
This part of IEC 60034 describes the effects of unbalanced voltages on the performance of three-phase cage induction motors.
- Standard13 pagesEnglish languagee-Library read for1 day
This document specifies requirements and provides recommendations for the design and installation of connections (bonds) between various electrically conductive elements in buildings and other structures, during their construction or refurbishment, in which information or telecommunications technology equipment is intended to be installed in order to: a) minimise the d.c. and a.c. potential differences in order to reduce the risk of malfunction of that equipment and interconnecting cabling due to electromagnetic disturbance; b) provide the telecommunications installation with a reliable signal reference – which may improve immunity from electromagnetic interference (EMI). The requirements of this European Standard are applicable to the buildings and other structures within premises addressed by EN 50174-2 (e.g. residential, office, industrial and data centres) but information given in this European Standard may be of assistance for other types of buildings and structures. NOTE Telecommunications centres (operator buildings) are addressed by ETSI/EN 300 253. This European Standard does not apply to power supply distribution of voltages over AC 1 000 V. Electromagnetic compatibility (EMC) requirements and safety requirements for power supply installation are outside the scope of this European Standard and are covered by other standards and regulations. However, information given in this European Standard may be of assistance in meeting the requirements of these standards and regulations.
- Amendment49 pagesEnglish languagee-Library read for1 day
IEC 60413:2026 concerns graphite-based grades that are used for sliding electrical contacts, such as carbon brushes or pantograph strips. By extension, it is possible to apply the test procedures of this document to all electrical sliding contacts for electrical transmission appliances and to other appliances of graphite-based materials (heat exchangers, bearings, etc.). This document specifies uniformized procedures for determining their following properties:
- density and porosity;
- resistivity;
- flexural strength;
- hardness;
- ash content.
In addition, it provides recommendations on test procedures for other properties:
- Mechanical properties: Charpy impact test, compressive strength, tensile strength (Annex B).
- Thermal properties: coefficient of thermal expansion, specific heat capacity, thermal conductivity (Annex C).
The properties determined by these tests are inherent to the graphite-based materials and it is therefore important to distinguish them from performance characteristics in operation on electrical equipment (carbon brush in an electrical rotating machine, contact strips on a pantograph, etc.). Since these materials are generally brittle, porous materials, it is reasonable that their properties vary much more than the same properties in metals. Some test methods are suitable for use in production quality control (routine tests), others only for more thorough investigations, using precise laboratory techniques (see Annex A).
WARNING — The use of this document can involve hazardous substances, operations and equipment. It does not purport to address all of the safety or environmental problems associated with its use. It is the responsibility of the user of this document to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
This second edition cancels and replaces the first edition published in 1972. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Title modified.
b) Addition of definitions in Clause 3.
c) Clause 5 on test specimen: Nomenclature and addition of the different types of test specimen, specification on their dimensions, tolerances and preparation.
d) Improvement of test procedures of the properties already disclosed in the previous edition (Clause 6 to Clause 11).
e) Separation of apparent density and apparent porosity (respectively Clause 6 and Clause 10).
f) Resistivity (Clause 7): Addition of the eddy current method.
g) Rebound hardness (Clause 9): Addition of a new model of scleroscope and addition of Leeb method, as a possible alternative to the traditional scleroscope method.
h) Common elements of the test report in a dedicated Clause 12.
i) Addition of Annex A (normative): introduction of tests categories (serial/type tests), list of properties to be tested for each test category of test according to their purpose.
j) Addition of Annex B: test procedures for other mechanical properties than flexural strength and hardness: tensile, compressive and impact strength.
k) Addition of Annex C: test procedures for thermal properties (coefficient of linear expansion, specific heat capacity and thermal conductivity).
l) Addition of Annex D: supplement to density and porosity.
m) Addition of Annex E: recommendations on methods for elements analysis.
n) Addition of Annex F: supplem
- Standard105 pagesEnglish languagee-Library read for1 day
IEC 60072-3: 2026 applies to small built-in motors with a pitch circle diameter of the flange between 10 mm and 50 mm. It provides a table with fixing dimensions, shaft extension dimensions and their tolerances.
This second edition cancels and replaces the firstedition published in 1994. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) clarification of the scope.
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IEC 63402-2-2:2026 specifies the fundamental aspects of semantic interoperability for the S2 interface and the related data exchange between a CEM and the resource managers within the premises. It provides a technology independent set of data models and interaction patterns in order to enable applications for energy management within the premises. This document does not include:
– mappings to concrete data representations (XML, JSON and similar);
– mappings to application protocols for the message passing;
– security related aspects.
This group EE publication is primarily intended to be used as an EE standard for the products mentioned in the scope, but is also intended to be used by TCs in the preparation of publications for products which are included in the boundary mentioned in the scope of this document
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IEC 60623:2026 specifies marking, designation, dimensions, tests and requirements for vented nickel-cadmium prismatic secondary single cells and battery systems made of them for use in industrial applications.
This sixth edition cancels and replaces the fifth 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) added a test for internal DC resistance;
b) added a subclause for pulse power calculation;
c) added a test for constant power measurement;
d) added a subclause on the determination of durability parameters.
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IEC 60127-7:2026 covers requirements for miniature fuse-links for special applications. This part of IEC 60127 is applicable to fuse-links with a rated voltage not exceeding 1 000 V, a rated current not exceeding 125 A and a rated breaking capacity not exceeding 50 kA. It does not apply to fuses completely covered by the subsequent parts of IEC 60269-1. It does not apply to miniature fuse-links for appliances intended to be used under special conditions, such as in corrosive or explosive atmospheres.
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IEC 63522-19:2026 This part defines a test method to measure electrical endurance of electrical relays and provides the appropriate severities and conditions for measurements designed to assess the ability of DUTs to perform under expected conditions of transportation, storage and all aspects of operational use.
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IEC 60317-0-1:2013 specifies general requirements of enamelled round copper winding wires with or without bonding layer. The range of nominal conductor diameters is given in the relevant specification sheet. This fourth edition cancels and replaces the third edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- revision to the definition of nominal conductor dimension;
- new subclause containing general notes on winding wire, formerly a part of the scope;
- revision to elongation requirements in Table 4;
- revisions to Clause 13, Breakdown voltage, to include new requirements for intermediate wire diameters;
- revision to continuity of insulation requirements in Table 13;
- revision to the introduction of Annex A;
- revision to B.2 of Annex B;
- revision to Table C.1 of Annex C. Keywords: requirements of enamelled round copper winding wires
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IEC 63522-41:2026 provides guidelines for the insulation coordination of electromechanical elementary, solid state, time, forcibility guided and reed relays as well reed contacts and hybrid switching solutions. This document can also be used for similar devices when specified in a detail specification.
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This part of IEC 62321 specifies one technique for the determination of short-chain and medium-chain chlorinated paraffins (SCCPs: C10-C13 and MCCPs: C14-C17) in plastics of electrotechnical products.
This document specifies a quantitative method for the determination of short-chain and mediumchain chlorinated paraffins in electrotechnical products by means of solvent extraction and gas chromatography-negative chemical ionization-mass spectrometry (GC-NCI-MS).
This test method has been evaluated for use with ABS (acrylonitrile butadiene styrene) and PVC (polyvinyl chloride) containing individual SCCPs ranging from 369,7 mg/kg to 8 653,9 mg/kg and MCCPs ranging from 2 141,1 mg/kg to 27 329,6 mg/kg as shown in the pre-IIS 14 results in Annex C. The use of this test method for other plastics and concentration ranges has not been specifically evaluated.
This document is a basic environment horizontal publication focusing on test methods and is primarily intended for use by committees in the preparation of publications within the area of environment in accordance with the principles laid down in IEC Guide 123. Wherever applicable, it is the responsibility of committees to make use of environment basic publications in the preparation of their environment group and product publications. Committees can apply this document directly to products when they do not develop a product publication in the area of environment.
WARNING – Persons using this International Standard should be familiar with normal laboratory practice. This International Standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.
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IEC 63369-1:2026 addresses general requirements and methodology, whereas intended IEC 63369-2 and intended IEC 63369-3 address applications of the methodology and default values of the CFF parameters by geographic area (see Annex B).
This document provides a comprehensive methodology for the calculation of carbon footprint of industrial type Li-ion battery systems from cradle to grave.
Second life and/or usage that was not intended when the battery was put on the market is not taken into account in this document.
This document, along with the other parts of this series, does not apply to batteries for portable, SLI and electric road vehicle traction applications. The definition of the parameters used for the carbon footprint calculation allows for comparability of results for all rechargeable Li-ion chemistries.
Classes of representative products are defined in this document to allow comparison inside each class.
This methodology, based on the data provided by the battery manufacturer, is mainly intended to allow a carbon footprint assessment of several battery solutions over the Cumulated Requested Service (CRS). This assessment can be used in the selection process of the battery purchaser.
The methodology can also be used for a variety of purposes such as battery system development, eco-design and participation in voluntary or mandatory programs.
The methodology in this document is based exclusively on attributional life cycle assessment (LCA).
The carbon footprint calculation of charging equipment and power conversion equipment not necessary for battery functions is not covered in this document.
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This part of IEC 62321 describes the screening analysis of substances, specifically lead (Pb), mercury (Hg), cadmium (Cd), total chromium (Cr), total bromine (Br), total phosphorus (P), assuming the source of P is related to TCEP (CAS 115-96-8), Trixylyl‑phosphate (CAS 25155-23-1), total chlorine (Cl), assuming the source of Cl is related to SCCP (CAS 85535-84-8), TCEP (CAS 115-96-8) , TBTC (CAS 1461-22-9), total tin (Sn), assuming the source of Sn is related to restricted organo‑tin compounds, total antimony (Sb), assuming the source of Sb is related to Pyrochlore, and antimony lead yellow (CAS 8012-00-8) in uniform materials found in electrotechnical products, using the analytical technique of X‑ray fluorescence (XRF) spectrometry.
The same methodology can also be used for screening of substances discussed as critical raw materials in various countries (for example currently discussed in the EU: antimony (Sb), baryte, bismuth (Bi), cobalt (Co), fluorspar, gallium (Ga), germanium (Ge), hafnium (Hf), indium (In), magnesium (Mg), niobium (Nb), phosphorus (P), scandium (Sc), tantalum (Ta), tungsten (W), vanadium (V), platinum group metals, heavy rare earth elements, light rare earth elements).
NOTE From EU information on critical raw materials [1]1 raw materials are crucial to Europe's economy. They form a strong industrial base, producing a broad range of goods and applications used in everyday life and modern technologies. Reliable and unhindered access to certain raw materials is a growing concern within the EU and across the globe. To address this challenge, the European Commission has created a list of critical raw materials (CRMs) for the EU, which is subject to a regular review and update. CRMs combine raw materials of high importance to the EU economy and of high risk associated with their supply.
The method is applicable to plastics, metals and ceramic materials. The test method can be applied to raw materials, individual materials taken from products and "homogenized" mixtures of more than one material. Screening of a sample is performed using any type of XRF spectrometer, provided it has the performance characteristics specified in this test method. Not all types of XRF spectrometers are suitable for all sizes and shapes of sample. The appropriate spectrometer design will be selected with care for the task concerned.
The performance of this test method has been tested for the following substances in various media and within the concentration ranges as specified in Table 1 to Table 5. During an IIS (international interlaboratory study) the feasibility of the test method to use for the added elements was tested. The results are listed in Table 6 to Table 10.
These substances in similar media outside of the specified concentration ranges can be analysed according to this test method; however, the performance has not been established for this document.
WARNING – Persons using this International Standard should be familiar with normal laboratory practice. This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.
This document is a basic environment horizontal publication focusing on test methods and is primarily intended for use by committees in the preparation of publications within the area of environment in accordance with the principles laid down in IEC Guide 123. Wherever applicable, it is the responsibility of committees to make use of environment basic publications in the preparation of their environment group and product publications. Committees can apply this document directly to products when they do not develop a product publication in the area of environment.
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- Standard50 pagesEnglish languagee-Library read for1 day
IEC TS 61641:2026 identifies methods used to verify the ability of the assembly:
– to limit the risk of injury to personnel during an internal arc-fault;
– to limit the damage to an acceptable level as a result of an internal arc-fault;
– to improve the power availability following an internal arc-fault.
This document takes into consideration:
– the effects of the internal overpressure acting on covers, doors, etc.;
– the thermal effects of the internal arc-fault or its roots on the enclosures and of ejected hot gases and glowing particles.
– the correct function of the IAMS within the assembly;
– the prevention of unintended operation of the IAMS within the assembly, for example caused by switching arcs;
– the functioning behaviour of the IAMS immediately after the assembly is energized.
This document describes different methods to assess the performance of an assembly or zones of an assembly in respect of arcing in air due to an internal failure:
– with "passive" arc-fault protection (provided by mechanical construction, e.g. suitable door locks, hinges, pressure relief devices, barriers);
NOTE 1 This approach corresponds to the method according to IEC TR 61641:2014.
– with "active" arc-fault protection (with the integration of IAMS);
NOTE 2 This approach corresponds to the method according to IEC TS 63107:2020.
– with the use of an arc ignition protected zone (to make the ignition of an arc-fault an extremely remote possibility).
NOTE 3 This approach corresponds to the method according to IEC TR 61641:2014.
IAMS consist of internal arc-fault control devices (IACD), e.g. optical-based IACD's in accordance with IEC 60947-9-2 and internal arc-fault reduction devices (IARD), e.g. arc quenching devices (AQDs) in accordance with IEC 60947-9-1 and short-circuit protection devices SCPD's in accordance with IEC 60947-2 (see Figure EE.1). IAMS can be provided by a combined-type device according to IEC 60947-9-2.
IEC 60364-4-42:2024 (Clause 427) provides guidance on the need for internal arc-fault protection.
This document does not supersede any individual product standard. Individual devices are required to comply with their relevant standard.
This document does not apply to integration of arc fault detection devices (AFDD) according to IEC 62606.
Informative Annex AA gives guidance for the user (see IEC 61439-1:2020, 3.11) on internal arc-fault mitigation.
Informative Annex BB gives guidance for the user (see IEC 61439-1:2020, 3.11) of assemblies with "active" arc-fault protection (with the integration of IAMS).
Informative Annex CC gives guidance for the original manufacturer of an assembly when incorporating an integrated IAMS.
This document does not consider other effects which can constitute a risk, such as emission of toxic gases, loud noises and/or intense light. Furthermore, this document does not consider conditions during maintenance work and the personal protective equipment used.
This edition cancels and replaces IEC TR 61641:2014 and IEC TS 63107:2020. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Introduction of the term "arcing class zone", using the term "arcing classes" from the previous document IEC TR 61641:2014.
b) Structured using of the terms "zone" and "area". "Area" is used to describe the place of installation and the accessibility of the assembly (macro-environment). "Zone" is used in this document to describe a defined space within the assembly (micro-environment).
c) Assembly protection is classified into two levels.
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