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 19661 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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- Corrigendum3 pagesEnglish and French languagee-Library read for1 day
- Amendment9 pagesEnglish languagee-Library read for1 day
IEC TS 62257-341:2026 proposes simple, inexpensive, comparative tests to determine which types of flooded lead-acid automobile batteries are acceptable for use in PV electrification systems.
It could be particularly useful for project implementers to test in laboratories of developing countries the capability of locally made car or truck batteries to be used for their project.
The tests provided in this document allow assessment of the batteries' performances according to the general specification and batteries associated with their smart battery charging systems (SBCS) in a short time and with common technical means. They can be performed locally, as close as possible to the operating conditions of the real site.
The document also provides recommendations and installation conditions to ensure the life and proper operation of the installations as well as the safety of people living in proximity to the installation.
This document offers guidelines and does not replace any existing IEC Standard on batteries.
This first edition cancels and replaces the second edition of IEC TS 62257-8-1 published in 2018. This edition includes the following significant technical changes with respect to IEC 62257‑8‑1:2018:
- increase of the applicable voltage levels and removal of the 100 kW power limit;
- removal of the word "small" from the description of these systems.
- Technical specification24 pagesEnglish languagesale 15% off
This document specifies the safety requirements for reciprocating internal combustion (RIC) engine driven generating sets up to 1 000 V alternating current (AC) or 1 500 V direct current (DC) and voltages above 1 000 V (AC) and not exceeding 36 kV consisting of an RIC engine, an AC generator including the additional equipment required for operating, e.g. controlgear, switchgear, auxiliary equipment.
This document is applicable to generating sets for land and marine use (domestic, recreational and industrial application). This document is not applicable to generating sets used on board of seagoing vessels and mobile offshore units as well as on aircraft or to propel road vehicles and locomotives.
This document is not applicable to gensets and components manufactured before the date of its publication.
NOTE This document does not apply to arc welding equipment (IEC 60974 series).
This document does not specify the special requirements needed to cover operation in potentially explosive atmospheres and is not applicable for such environments.
The hazards relevant to RIC engine driven generating sets are identified in Table A.1.
This document deals with the special requirements of test and safety design which are observed in addition to the definitions and requirements in ISO 8528-1:2018, ISO 8528-2:2018, ISO 8528-3:2020, ISO 8528-4:2025, ISO 8528-5:2025, ISO 8528-6:2023 and ISO 8528-10:2022, where applicable. This document specifies safety requirements in order to protect the user from danger.
- Standard60 pagesEnglish languagee-Library read for1 day
The contents of the corrigendum of March 2023 have been included in this copy.
- Draft23 pagesEnglish languagee-Library read for1 day
IEC 61788-15:2026 describes measurements of the intrinsic surface impedance (Zs) of HTS films at microwave frequencies by a modified two-resonance mode dielectric resonator method. The object of measurement is to obtain the temperature dependence of the intrinsic Zs at the resonant frequency f0. The frequency and thickness range and the measurement resolution for the Zs of HTS films are as follows: - frequency: up to 40 GHz; - film thickness: greater than 50 nm; - measurement resolution: 0,01 mΩ at 10 GHz. It is crucial that the Zs data at the measured frequency, and that scaled to 10 GHz be reported for comparison, assuming the f2 rule for the intrinsic surface resistance, Rs (f < 40 GHz), and the f rule for the intrinsic surface reactance, Xs. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - informative Annex B, combined relative standard uncertainty in the intrinsic surface impedance is added; - the terms, ‘precision and accuracy’, are replaced with uncertainty; - results from a round robin test are added.
- Draft52 pagesEnglish languagee-Library read for1 day
- Draft13 pagesEnglish languagee-Library read for1 day
- Corrigendum3 pagesEnglish languagee-Library read for1 day
- Corrigendum4 pagesEnglish languagee-Library read for1 day
IEC 61643-361:2026 applies to surge isolation transformers (SITs) dedicated to surge mitigation and for connection to 50/60 Hz power circuits and equipment rated up to 1 000 V RMS. This document covers the surge and mitigation performance of SITs with an impulse withstand voltage performance of at least 30 kV, and provides standard methods for testing and rating.
This document covers surge-related parameters but does not address typical transformer tests and parameters covered by the IEC 61558 series [13][1]. This document also does not cover SIT operation under differential mode lightning surge conditions.
[1] Numbers in square brackets refer to the Bibliography.
- Standard18 pagesEnglish languagesale 15% off
- Standard19 pagesFrench languagesale 15% off
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
- Draft96 pagesEnglish languagee-Library read for1 day
IEC 61439-8:2026 specifies requirements for the design and verification of low voltage switchgear and controlgear assemblies for use in photovoltaic installations. PVAs have the following characteristics: - assemblies used for the combination of electrical energy in DC systems for which the input and output voltage does not exceed 1 500 V DC; - assemblies supplied from an AC network where the voltage does not exceed 1 000 V AC for auxiliary and control purposes; - stationary assemblies with an enclosure; - assemblies intended for operation by authorised persons (see IEC 61439 1:2020, 3.7.17), but can be located in an area accessible to ordinary persons (see IEC 61439 1:2020, 3.7.16); - suitable for indoor or outdoor installation. This document identifies definitions, specifies the service conditions, details the construction requirements, defines the technical characteristics, and provides verifications for PVAs. PVAs can also include control or signalling devices, or both, associated with the distribution of electrical energy. This document applies to all PVAs whether they are designed and manufactured on a one-off basis or fully standardized and manufactured in quantity. Either the manufacture or assembly, or both, can be carried out by an entity other than the original manufacturer (see IEC 61439 1:2020, 3.10.1). This document does not apply to: - individual devices, for example, circuit-breakers, fuse switches and self-contained components such as, motor starters, switch mode power supplies (SMPS), uninterruptable power supplies (UPS), basic drive modules (BDM), complete drive modules (CDM), adjustable speed power drives systems (PDS), stand-alone energy storage systems (battery and capacitor systems), other electronic equipment which comply with their relevant product standards, such as junction boxes of photovoltaic modules. This document describes their integration into a PVA or an empty enclosure used as a part of a PVA; - photovoltaic power conversion equipment (PCE) incorporating DC combination sub-systems, covered by the IEC 62109 series. Some applications, such as either explosive atmospheres or functional safety, or both, can be subject to the requirements of other standards or local installation rules in addition to those specified in the IEC 61439 series. This document does not apply to the specific types of assemblies covered by other parts of the IEC 61439 series.
- Draft47 pagesEnglish languagee-Library read for1 day
- Draft59 pagesEnglish languagee-Library read for1 day
IEC 63497:2026, which is a product standard, is intended to specify the EMC, performance and safety requirements of shunt-connected active correction devices (ACD) with rated system voltages not exceeding 1 000 V AC or 1 500 V DC. These devices can be either cord or permanently connected. They can be movable, stationary, or fixed devices. An ACD includes both a static VAR generator (SVG) and an active harmonic filter (AHF). The primary function of a shunt connected ACD is to do one or more of the following: - active harmonic filtering; - reactive power compensation; - unbalanced load compensation. Additional functions of a shunt-connected ACD, not addressed by this document, can be the following: - flicker compensation; - interharmonic component filtering. In case of hybrid devices, combining a passive harmonic filter and an ACD, this document covers only the active part. This document does not cover - active mitigation functions part of another device (variable speed drive, uninterruptible power supply, dynamic voltage restorer, etc.), - switched power capacitors, - switched inductors, - passive harmonic filters, - energy storage converters, and - series-connected active correction devices.
- Draft48 pagesEnglish languagee-Library read for1 day
IEC 62196-3:2026 is applicable to vehicle couplers with pins and contact tubes of standardized configuration, herein also referred to as "accessories", intended for use in electric vehicle conductive charging systems which incorporate control means, with rated operating voltage and current in accordance with IEC 62196-1:2025.
This document applies to high power DC interfaces and combined AC/DC interfaces of vehicle couplers that are intended for use in conductive charging systems for circuits specified in IEC 61851-1 and IEC 61851-23.
This third edition cancels and replaces the second edition published in 2022. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) The content of IEC TS 62196-3-1 has been integrated into this document as normative Annex AA.
b) increased ratings for all configurations;
c) reference to new tests in IEC 62196-1:2025 (Clauses 34, 35, 36 and 37).
- Standard148 pagesFrench languagesale 15% off
- Standard294 pagesEnglish and French languagesale 15% off
IEC 62683-1:2026 establishes the reference dictionary of the general description of classes of low-voltage switchgear and controlgear and their assemblies based on defined properties. This dictionary is used to facilitate the exchange in electronic format of data describing low voltage switchgear and controlgear, their accessories and their assemblies. This document provides clear and unambiguous definitions of a limited number of properties and classes which are mainly used for presentation, selection and identification of products particularly in electronic catalogues. Each property has an unambiguously defined meaning and name, and where relevant, a defined value list, a defined format, and a defined unit. Manufacturer specific features are not covered. This second edition cancels and replaces the first edition published in 2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition for reflecting the content of the IEC CDD 62683DB which has been updated with the change requests C00073, C00074, C00081, C00087, C00089, C00098, C00100, C00107, C00111, C00116, C00119, C00122, C00146, C00148, C00159, C00167, C00174 and C00135:
a) New device class descriptions: ACC304, ACC305, ACC413, ACC417, ACC503, ACC504, ACC505, ACC512, ACC516, ACC536, ACC537, ACC538, ACC540, ACC541, ACC542, ACC543, ACC544, ACC545, ACC546, ACC547, ACC548.
b) New associated properties.
c) New assembly class structure: ACC101, ACC102, ACC103, ACC104, ACC106, ACC110, ACC111, ACC112, ACC113, ACC114, ACC115, ACC116, ACC117, ACC118, ACC119, ACC120, ACC121, ACC123, ACC124, ACC125, ACC126, ACC127, ACC131, ACC132, ACC133, ACC135, ACC141, ACC142, ACC143, ACC144, ACC145, ACC146, ACC147, ACC148, ACC150, ACC151, ACC152, ACC153, ACC154, ACC155, ACC156, ACC157, ACC158, ACC159, ACC160, ACC161, ACC162, ACC163, ACC164, ACC165, ACC166, ACC167, ACC170, ACC171, ACC172, ACC173, ACC174, ACC175.
- Standard368 pagesEnglish languagesale 15% off
- Standard386 pagesEnglish and French languagesale 15% off
- Standard386 pagesEnglish and French languagesale 15% off
IEC TR 60695-11-40:2026, presents a general characterization of small-scale test flames and associated confirmatory tests based on copper block calorimetry. Information is presented for the selection of critical parameters in confirmatory test designs.
This basic safety publication is intended for use by technical committees in the preparation of safety publications in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51.
This first edition cancels and replaces the second edition of IEC TS 60695-11-40 published in 2021. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) change of classification of this document (from Technical Specification to Technical Report), based on the nature of this publication, which provides solely general information and the theoretical basis for confirmatory tests using copper blocks;
b) minor editorial changes.
- Technical report18 pagesEnglish languagesale 15% off
The EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV.
This document applies to connectors used for the electrical connection of ABC.
The connectors are designed to be installed where either the main and/or branch cable is ABC as defined by HD 626 S2.
Tests described in this document are type tests.
- Standard46 pagesEnglish languagee-Library read for1 day
The EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV.
This document applies to tensioning devices consisting of tension and suspension clamps, and tension and suspension assemblies used for the installation of ABC with either insulated or bare neutral messenger.
The tension and suspension clamps are designed to be installed on neutral conductors of ABC defined in HD 626 S2.
Tests described in this document are type tests.
- Standard37 pagesEnglish languagee-Library read for1 day
- Corrigendum1 pageEnglish languagee-Library read for1 day
Part 1:
This part of IEC 62818, which is a Technical Specification, establishes a system of fiber
reinforced composite core used as supporting member material in conductors for overhead lines
which may be used as the basis for specifications. This document is applicable to fiber
reinforced composite core, with polymeric matrix, used as supporting member material in
conductors for overhead lines.
This document gives guidance on:
– defining the common terms used for fiber reinforced composite core with polymeric matrix,
– prescribing common methods and recommendations to characterize the properties of fiber
reinforced composite core based on single or multi-wires with PMC (Polymeric Matrix
Composite) used as supporting member material in conductors,
– prescribing or recommending acceptance or failure criteria when applicable.
These tests, criteria and recommendations are intended to ensure a satisfactory use and quality
under normal operating and environmental conditions.
This document does not apply to compliance criteria which may be required but indicative
values could be given in Annexes for guidance.
- Technical specification38 pagesEnglish languagee-Library read for1 day
The EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV.
This document defines the environmental tests in particular the climatic and corrosion ageing tests. The objective of these tests is to predict the behaviour of ABC accessories when subjected to sun radiation, to weather conditions (humidity, spraying water, heat, cold) and pollution. EN 50483-1, EN 50483-2, EN 50483-3 and EN 50483-4 specify which type tests included in this part of the standard are needed.
- Standard26 pagesEnglish languagee-Library read for1 day
IEC 63522-52:2026 is used for testing all kind of electrical relays and for evaluating their ability to perform under expected conditions of transportation, storage and all aspects of operational use. This document defines a standard test method for coil overvoltage in device under test (DUT) equipped with a coil. is used for testing all kind of electrical relays and for evaluating their ability to perform under expected conditions of transportation, storage and all aspects of operational use.
- Draft7 pagesEnglish languagee-Library read for1 day
- Draft8 pagesEnglish languagee-Library read for1 day
Part 2:
This part of IEC 62818, which is a Technical Specification, establishes a system of fiber
reinforced composite cores used as supporting member material in conductors for overhead
lines which may be used as the basis for specifications. This document is applicable to fiber
reinforced composite core, with a metallic matrix, used as supporting member material in
conductors for overhead lines.
This document gives guidance on:
– defining the common terms used for fiber reinforced composite cores with a metallic matrix,
– prescribing common methods and recommendations to characterize the properties of fiber
reinforced composite cores based on single or multi-wires, with MMC (Metallic Matrix
Composite) used as a supporting member material in conductors,
– prescribing or recommending acceptance or failure criteria when applicable.
These tests, criteria and recommendations are intended to ensure a satisfactory use and quality
under normal operating and environmental conditions.
This document does not prescribe performance or compliance criteria which may be required
but indicative values could be given in Annexes for guidance.
- Technical specification34 pagesEnglish languagee-Library read for1 day
The EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV.
The purpose of this Part 1 is to define the common aspects of the products included in the above scope.
- Standard27 pagesEnglish languagee-Library read for1 day
The EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV.
This document applies to the connections described in EN 50483-4, including branch connectors, Insulation Piercing Connectors (IPC), pre-insulated lugs (terminals) and through pre-insulated connectors (sleeves).
Two classes of connectors are covered by this document:
- Class A: These are connectors intended for electricity distribution or industrial networks in which they can be subjected to short-circuits of relatively high intensity and duration. As a consequence, Class A connectors will be suitable for the majority of applications.
- Class B: These are connectors for networks in which overloads or short-circuits are rapidly cleared by the operation of protection devices.
Depending on their application, the connectors are subjected to heat cycles and short-circuit current tests.
Class A: the connectors are subjected to heat cycles and short-circuit current tests.
Class B: the connectors are subjected to heat cycles only.
The object of this document is to define the heating cycles test methods and requirements which apply to compression through connectors, insulation piercing connectors and all other type of connections for low voltage aerial bundled cables.
- Standard31 pagesEnglish languagee-Library read for1 day
IEC 62133-1:2026 specifies requirements and tests for the safe operation of portable sealed secondary nickel cells and batteries containing alkaline electrolyte, under intended use and reasonably foreseeable misuse. This second edition cancels and replaces the first edition of IEC 62133-1 published in 2017. It constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 62133 1:2017: a) removal of the definition "secondary battery"; b) removal of the definition "portable battery"; c) "removal of the definition "portable cell"; d) replacement of the single term "room temperature" with 20 °C ± 5 °C in 7.2.3; e) modification of Figure 1.
- Draft23 pagesEnglish languagee-Library read for1 day
IEC 63522-3:2026 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.
- Draft13 pagesEnglish languagee-Library read for1 day
- Draft13 pagesEnglish languagee-Library read for1 day
The EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV.
This document applies to tensioning devices consisting of tension and suspension clamps, fittings and brackets designed to be used for installation of self-supporting ABC defined in HD 626 S2.
Tests described in this document are type tests.
- Standard27 pagesEnglish languagee-Library read for1 day
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.
- Standard63 pagesEnglish and French languagesale 15% off
- Standard63 pagesEnglish and French languagesale 15% off
IEC TS 63222‑4:2026 specifies the requirements of the models, methods and procedures for harmonic analysis on the public electric power network. This document is applicable to harmonic analysis up to 40th harmonic at high, medium and low voltage of the public electric power network with nominal frequency of 50 Hz or 60 Hz.
- Technical specification50 pagesEnglish languagesale 15% off
IEC TS 63529:2026, which is a Technical Specification, is intended to inform and guide the harmonic design of the DC side of HVDC projects. It considers all aspects of AC current and voltage occurring on the DC circuit and also the interaction with adjacent systems.
The switching action in HVDC converters results in a wide spectrum of harmonics. These range from the fundamental frequency to the radio frequency range. Traditionally the specification of DC side harmonic performance has been limited to the frequency range of interest for induced audible noise on nearby telephone systems. Often a limit of 50th harmonic has been applied, corresponding to 2 500 Hz or 3 000 Hz on 50 Hz and 60 Hz systems respectively. Occasionally the range has been extended to 5 000 Hz. This frequency range has corresponded to the spectrum of characteristic harmonic generation from thyristor line commutated converters (LCC).
The introduction of HVDC voltage sourced converters (VSC) has meant that although the magnitude of DC side harmonic generation from these converters is generally lower, the generated spectrum of interest extends to higher frequencies.
The scope of this document therefore covers the frequency range up to approximately 5 000 Hz. Higher frequencies are mentioned only when relevant. The scope excludes the much higher frequency ranges appropriate to PLC communication and the radio interference spectra.
- Technical specification270 pagesEnglish languagesale 15% off
IEC 60079-28:2025 specifies additional requirements for Ex Equipment, Ex associated equipment or Ex Components containing optical systems emitting optical radiation, which is exposed to explosive atmospheres. These additional requirements are applicable for all equipment groups and all Equipment Protection Levels (EPL).
This document contains requirements for optical radiation in the wavelength range from 380 nm to 10 µm. It covers the following ignition mechanisms:
• Optical radiation is absorbed by surfaces or particles, causing them to heat up, and under certain circumstances this might allow them to attain a temperature which will ignite a surrounding explosive atmosphere.
• In rare special cases, direct laser induced breakdown of the gas at the focus of a strong beam, producing plasma and a shock wave both eventually acting as ignition source. These processes can be supported by a solid material close to the breakdown point.
• Annex A provides guidance when considering ignition mechanisms that influence the hazard of optics in explosive atmospheres.
This document applies to
a) laser equipment; and
b) optical fibre equipment; and
c) any optical system that converts light into convergent beams with focal points within the hazardous area only.
This document does not apply to:
d) laser equipment for EPL Mb, Gb, Gc, Db or Dc applications which complies with Class 1 limits in accordance with IEC 60825-1; or
e) Single or multiple optical fibre cables not part of optical fibre equipment if the cables:
1) comply with the relevant industrial standards for optical fibre cables, along with additional protective means, for example robust cabling, conduit or raceway (for EPL Gb, Db, Mb, Gc or Dc); or
2) comply with the relevant industrial standards for optical fibre cables (for EPL Gc or Dc); or
f) Optical radiation sources as defined in i) to iii) above where the optical radiation is fully contained in an enclosure complying with one of the following Types of Protection suitable for the EPL, or the minimum ingress protection rating specified:
1) flameproof "d" enclosures (IEC 60079-1); or
2) pressurized "p" enclosures (IEC 60079-2); or
3) restricted breathing "nR" enclosure (IEC 60079-15); or
4) dust protection "t" enclosures" (IEC 60079-31); or
5) an enclosure that provides a minimum ingress protection of IP 6X and where no internal absorbers are to be expected and complying with "Tests of enclosures" in IEC 60079-0.
This document does not cover ignition by ultraviolet radiation and by absorption of the radiation in the explosive mixture itself. Explosive absorbers or absorbers that contain their own oxidizer as well as catalytic absorbers are also outside the scope of this document.
This document supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this document conflicts with a requirement of IEC 60079-0, the requirement of this document takes precedence.
This third edition cancels and replaces the second edition published in 2015. This edition constitutes a technical revision
- Standard36 pagesEnglish languagee-Library read for1 day
IEC 60034-30-1:2025 specifies efficiency classes for single-speed electric motors that are rated in accordance with IEC 60034‑1 or IEC 60079‑0 and are rated for operation on a sinusoidal either 50 Hz or 60 Hz, or both voltage supply.
The motors within this document:
- have a rated power PN from 0,12 kW to 1 000 kW;
- have a rated voltage UN from 50 V up to and including 1 000 V;
- have 2, 4, 6 or 8 poles;
- are capable of continuous operation at their rated power with a temperature rise within the specified insulation temperature class;
NOTE 1 Most motors covered by this document are rated for duty type S1 (continuous duty). However, some motors that are rated for other duty cycles are still capable of continuous operation at their rated power, and these motors are also covered by this document.
- are marked with any ambient temperature within the range of –30 °C to +60 °C;
NOTE 2 The rated efficiency and efficiency classes are based on 25 °C ambient temperature in accordance with IEC 60034‑2‑1.
NOTE 3 Motors exclusively rated for temperatures outside the range – 30 °C and +60 °C are considered to be of special construction and are consequently excluded from this document.
NOTE 4 Smoke extraction motors with a temperature class of up to and including 400 °C are covered by this document.
- are marked with an altitude up to 4 000 m above sea level.
NOTE 5 The rated efficiency and efficiency class are based on a rating for altitudes up to 1 000 m above sea level.
This document establishes a set of nominal efficiency values based on supply frequency, number of poles and motor output power. No distinction is made between motor technologies, supply voltage or motors with increased insulation designed specifically for converter operation even though not all motor technologies are capable of reaching the higher efficiency classes (see Table 1). This makes different motor technologies fully comparable with respect to their energy efficiency potential.
The efficiency of power-drive systems is not covered by this document. Motor losses due to harmonic content of the supply voltage, losses in cables, filters and frequency-converters, are not covered.
Motors with flanges, feet or shafts with mechanical dimensions different from IEC 60072‑1 are covered by this document.
Geared motors are covered by this document including those incorporating non-standard shafts and flanges.
This document does not apply to the following:
- Single-speed motors with 10 or more poles or multi-speed motors.
- Motors with mechanical commutators (such as DC motors).
- Motors completely integrated into a machine (for example pump, fan and compressor) that cannot be practically tested separately from the machine even with provision of a temporary end-shield and drive-end bearing. This means the motor: a) shares common components (apart from connectors such as bolts) with the driven unit (for example, a shaft or housing) and b) is not designed in such a way as to enable the motor to be separated from the driven unit as an entire motor that can operate independently of the driven unit. That is, for a motor to be excluded from this document, the process of separation shall render the motor inoperative.
- Totally enclosed air-over machines (TEAO, IC418), i.e. totally enclosed frame-surface cooled machines intended for exterior cooling by a ventilating means external to the machine. Efficiency testing of such motors can be performed with the fan removed and the cooling provided by an external blow
- Standard31 pagesEnglish languagee-Library read for1 day
IEC 60079-29-0:2025 specifies general requirements, test methods and acceptance criteria that apply to flammable, oxygen and toxic gas detection equipment intended to detect gases and vapours and to provide an indication, alarm or other output function for personnel or property protection in industrial and commercial applications.
This document applies to the following gas detection equipment:
– Gas detection equipment Type "FL" intended for the detection of flammable gases:
• Type FL-Group I, in mines susceptible to firedamp;
• Type FL-Group II, in locations other than mines susceptible to firedamp; and
• Type FL-OP, open path gas detection equipment for flammable gases.
– Gas detection equipment Type "O2" intended for the detection of Oxygen:
• Type O2-DE, detection of oxygen deficiency or oxygen enrichment; and
• Type O2-IN, inertisation as measuring function for explosion protection.
– Gas detection equipment Type "TX" intended for the detection of toxic gases:
• Type TX-SM, detection in areas for safety monitoring applications and typically using alarm signalling;
• Type TX-HM, occupational exposure measurement in the region of occupational exposure limit values; and
• Type TX-OP, open path gas detection equipment for toxic gases.
This document is not applicable to equipment:
– used for medical applications;
– used only in laboratories for analysis or measurement;
– used only for process monitoring or control purposes (such as a gas analyser);
– used in the domestic environment;
– used in environmental air pollution monitoring;
– used for flue gas analysis;
– used for sampling systems external to the gas detection equipment;
– with samplers and concentrators such as sorbents or paper tape having an irreversible indication;
– consisting of a passive optical receiver without a dedicated optical source;
– equipment within the scope of IEC 60335-2-40 and IEC 60335-2-89.
This first edition of IEC 60079-29-0 cancels and replaces the second edition of 60079-29-1 published in 2016 and its Amendment 1:2020, and the first edition of IEC 60079-29-4 published in 2009. In addition, IEC 60079-29-0 Type TX-SM cancels and replaces Type SM of the first edition of IEC 62990-1.
- Standard92 pagesEnglish languagee-Library read for1 day
- Amendment7 pagesEnglish languagee-Library read for1 day
IEC 63545:2026 specifies safety requirements for horticultural luminaires, incorporating electric light sources for operation from supply voltage up to 1 000 V.
- Draft23 pagesEnglish languagee-Library read for1 day
IEC 60245-4:2026 defines the particular requirements for rubber insulated and braided cords and for rubber insulated and rubber or polychloroprene or other equivalent synthetic elastomer sheathed cords and flexible cables of rated voltages up to and including 450/750 V which apply in addition to the general requirements specified in IEC 60245-1, which apply to all cables.
IEC 60245-4:2026 includes the following significant technical changes with respect to the previous edition:
a) reference to tests according to IEC 60245-2 has been deleted and replaced by IEC 63294;
b) normative references have been updated.
This document is to be used in conjunction with IEC 60245-1.
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- Standard54 pagesEnglish languagesale 15% off
IEC 60245-8:2026 defines the particular requirements for rubber insulated and textile braid covered cords of rated voltage 300/300 V, for use in applications where high flexibility is required, for example iron cords, which apply in addition to the general requirements specified in IEC 60245-1, which apply to all cables. The tests for cables specified in the IEC 60245 series are described in IEC 63294.
IEC 60245-8:2026 includes the following significant technical changes with respect to the previous edition:
a) reference to IEC 60245-2 for the tests has been deleted and replaced by IEC 63294;
b) reference to lift cable according to IEC 60245-5 has been deleted;
c) normative references have been updated.
This document is to be used in conjunction with IEC 60245-1.
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IEC TS 63573-1:2026, which is a Technical specification, defines specific requirements for materials to be used for the stator and/or rotor core of rotating electrical machines according to the IEC 60034 series. This document applies in addition to IEC 60404- series and is addressed to the suppliers of the raw material (electrical sheet), to producers of magnetic cores (including a possible annealing treatment), to electric motor manufacturers as well as to users of electrical steel. This document does not apply to motor customers.
The objective of this document is to address the immediate needs of motor manufacturers striving to achieve high IEC efficiency classes.
IEC TS 63573 is an independent product-specific specification focusing on rotating electrical machines in accordance with the IEC 60034 series and can be applied as a supplement to IEC 60404-8-4.
At the time of publication of this document it is anticipated that collaboration with IEC Technical Committee 68 (Magnetic alloys and steels) will lead to the development of Amendment 2 to IEC 60404-8-4:2022. This amendment is expected to clarify the relevant issues and provide a comprehensive solution.
This Technical Specification will be withdrawn once Amendment 2 to IEC 60404-8-4:2022 is published and takes effect, provided it addresses the identified need.
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IEC TS 63264:2026 applies to composite insulators equipped with optical fibres (fibre optic element), consisting of a load-bearing insulating core or tube, a housing (surrounding the insulating core) made of polymeric material, a fibre optic element integrated into the core or housing, or embedded in a filling media inside the inner volume of a hollow core, and end fittings permanently attached to the insulating core.
The object of this document is to
- define the terms used,
- specify additional test methods and provide additions and modifications to tests referred,
- specify acceptance criteria.
This document is to be used in addition to the respective product standard applicable to the product, application and design to which the fibre optic element has been added. Furthermore, this document does not include requirements dealing with the choice of insulators for specific operating conditions or environments.
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IEC 63058:2026 is to describe product classes and properties, representing the miniature circuit-breaker (MCB), to become a part of the IEC 61360-4: IEC Common Data Dictionary (IEC CDD). It includes data required for product selection as well as data required for engineering.
This document intends, as a contribution to the IEC Common Data Dictionary, to be used by catalogue consortia, other database standards and software as a data reference for circuit‑breakers and similar equipment for household use.
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The EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV. This document defines the environmental tests in particular the climatic and corrosion ageing tests. The objective of these tests is to predict the behaviour of ABC accessories when subjected to sun radiation, to weather conditions (humidity, spraying water, heat, cold) and pollution. EN 50483-1, EN 50483-2, EN 50483-3 and EN 50483-4 specify which type tests included in this part of the standard are needed.
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The EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV. This document applies to tensioning devices consisting of tension and suspension clamps, and tension and suspension assemblies used for the installation of ABC with either insulated or bare neutral messenger. The tension and suspension clamps are designed to be installed on neutral conductors of ABC defined in HD 626 S2. Tests described in this document are type tests.
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The EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV. This document applies to tensioning devices consisting of tension and suspension clamps, fittings and brackets designed to be used for installation of self-supporting ABC defined in HD 626 S2. Tests described in this document are type tests.
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The EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV. This document applies to connectors used for the electrical connection of ABC. The connectors are designed to be installed where either the main and/or branch cable is ABC as defined by HD 626 S2. Tests described in this document are type tests.
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IEC 63356-1:2026 is available as IEC 63356-1:2026 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 63356-1:2026 specifies data sheets of LED lamps and LED modules with a series of parameters per data sheet for a specific LED light source that enables interchangeability between products from different LED light source manufacturers. NOTE Compliance criteria relating to data sheet parameters in this document are covered by IEC 63554 or IEC 62031 for safety, and IEC 63555 for performance. This third edition cancels and replaces the second edition published in 2023. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of datasheets for GJ6.6d-2-x capped LED lamps.
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The EN 50483 series applies to overhead line fittings for tensioning, supporting and connecting aerial bundled cables (ABC) of rated voltage U0/U (Um): 0,6/1 (1,2) kV. This document applies to the connections described in EN 50483-4, including branch connectors, Insulation Piercing Connectors (IPC), pre-insulated lugs (terminals) and through pre-insulated connectors (sleeves). Two classes of connectors are covered by this document: - Class A: These are connectors intended for electricity distribution or industrial networks in which they can be subjected to short-circuits of relatively high intensity and duration. As a consequence, Class A connectors will be suitable for the majority of applications. - Class B: These are connectors for networks in which overloads or short-circuits are rapidly cleared by the operation of protection devices. Depending on their application, the connectors are subjected to heat cycles and short-circuit current tests. Class A: the connectors are subjected to heat cycles and short-circuit current tests. Class B: the connectors are subjected to heat cycles only. The object of this document is to define the heating cycles test methods and requirements which apply to compression through connectors, insulation piercing connectors and all other type of connections for low voltage aerial bundled cables.
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