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29 Electrical engineering
New standards
EVS-EN IEC 60079-26:2024
Explosive atmospheres - Part 26: Equipment with separation elements or combined Levels of Protection
Scope:
IEC 60079-26:2021 specifies requirements for construction, testing and marking for Ex Equipment that contains parts of the equipment with different Equipment Protection Levels (EPLs) and a separation element. This equipment is mounted across a boundary where different EPLs are required, for example between different gas hazardous areas, dust hazardous areas or gas hazardous areas adjacent to dust hazardous areas.
Separation elements are considered for both electrical and non-electrical equipment. If mechanical energy can be transformed into a potential ignition source, additionally an ignition hazard assessment in accordance with ISO 80079-36 is performed and appropriate measures are undertaken.
This document also specifies requirements for the combination of two Types of Protection, each with EPL Gb, to achieve EPL Ga.
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 fourth edition cancels and replaces the third edition and constitutes a technical revision.
Please see the IEC 60079-26:2020 foreword for a description of the main changes with respect to the previous edition.
Separation elements are considered for both electrical and non-electrical equipment. If mechanical energy can be transformed into a potential ignition source, additionally an ignition hazard assessment in accordance with ISO 80079-36 is performed and appropriate measures are undertaken.
This document also specifies requirements for the combination of two Types of Protection, each with EPL Gb, to achieve EPL Ga.
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 fourth edition cancels and replaces the third edition and constitutes a technical revision.
Please see the IEC 60079-26:2020 foreword for a description of the main changes with respect to the previous edition.
Base documents:
IEC 60079-26:2021; EN IEC 60079-26:2024
Replaces:
EVS-EN 60079-26:2015
EVS-EN IEC 60034-2-1:2024
Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles)
Scope:
This part of IEC 60034 is intended to establish methods of determining efficiencies from tests, and also to specify methods of obtaining specific losses.
This standard applies to d.c. machines and to a.c. synchronous and induction machines of all sizes within the scope of IEC 60034-1 rated for mains operation.
NOTE These methods may be applied to other types of machines such as rotary converters, a.c. commutator motors and single-phase induction motors.
This standard applies to d.c. machines and to a.c. synchronous and induction machines of all sizes within the scope of IEC 60034-1 rated for mains operation.
NOTE These methods may be applied to other types of machines such as rotary converters, a.c. commutator motors and single-phase induction motors.
Base documents:
EN IEC 60034-2-1:2024; IEC 60034-2-1:2024
Replaces:
EVS-EN 60034-2-1:2014
EVS-EN IEC 60034-2-2:2024
Rotating electrical machines - Part 2-2: Specific methods for determining separate losses of large machines from tests - Supplement to IEC 60034-2-1
Scope:
IEC 60034-2-2:2024 applies to large rotating electrical machines and establishes additional methods of determining separate losses and to define an efficiency supplementing IEC 60034‑2‑1. These methods apply when full-load testing is not practical and results in a greater uncertainty. The specific methods described are:
- Calibrated-machine method.
- Retardation method.
- Calorimetric method.
- Summation of losses for permanent magnet excited synchronous machines.
This second edition cancels and replaces the first edition published in 2010. This edition includes the following significant technical changes with respect to the previous edition:
- Layout and procedures aligned with IEC 60034-2-1 and IEC 60034-2-3.
- Annex A added: an informative procedure for the summation of losses for large permanent-magnet excited synchronous machines.
- Calibrated-machine method.
- Retardation method.
- Calorimetric method.
- Summation of losses for permanent magnet excited synchronous machines.
This second edition cancels and replaces the first edition published in 2010. This edition includes the following significant technical changes with respect to the previous edition:
- Layout and procedures aligned with IEC 60034-2-1 and IEC 60034-2-3.
- Annex A added: an informative procedure for the summation of losses for large permanent-magnet excited synchronous machines.
Base documents:
IEC 60034-2-2:2024; EN IEC 60034-2-2:2024
Replaces:
EVS-EN 60034-2-2:2010
EVS-EN IEC 60034-2-3:2024
Rotating electrical machines - Part 2-3: Specific test methods for determining losses and efficiency of converter-fed AC motors
Scope:
IEC 60034-2-3:2024 specifies test methods and an interpolation procedure for determining losses and efficiencies of converter-fed motors. The motor is then part of a variable frequency power drive system (PDS) as defined in IEC 61800‑9‑2. This document also specifies procedures to determine motor losses at any load point (torque, speed) within the constant flux range (constant torque range, base speed range), the field weakening range and the overload range based on determination of losses at seven standardized load points. This procedure is applicable to any variable speed AC motor (induction and synchronous) rated according to IEC 60034-1 for operation on a variable frequency and variable voltage power supply. This second edition cancels and replaces the first edition of IEC 60034-2-3 published in 2020. This edition includes the following significant technical changes with respect to the previous edition:
- Harmonization of requirements and procedures with IEC 60034-2-1.
- Extension of the interpolation procedure to the field weakening range.
- Harmonization of requirements and procedures with IEC 60034-2-1.
- Extension of the interpolation procedure to the field weakening range.
Base documents:
IEC 60034-2-3:2024; EN IEC 60034-2-3:2024
Replaces:
EVS-EN IEC 60034-2-3:2020
IEC 61558-2-12:2024
Safety of transformers, reactors, power supply units and combination thereof - Part 2-12: Particular requirements and tests for constant voltage transformers and power supply units for constant voltage
Scope:
IEC 61558-2-12:2024 is available as IEC 61558-2-12:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61558-2-12:2024 deals with the safety of constant voltage transformers for general applications and power supply units for constant voltage for general applications. Constant voltage transformers incorporating electronic circuits are also covered by this document.
This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) adjustment of structure and references in accordance with IEC 61558-1:2017;
b) description of constructions moved to IEC 61558-1:2017;
c) new symbol for power supply unit with linearly regulated output voltage.
It has the status of a group safety publication in accordance with IEC Guide 104.
This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) adjustment of structure and references in accordance with IEC 61558-1:2017;
b) description of constructions moved to IEC 61558-1:2017;
c) new symbol for power supply unit with linearly regulated output voltage.
It has the status of a group safety publication in accordance with IEC Guide 104.
Base documents:
IEC 61558-2-12:2024 EXV
Safety of transformers, reactors, power supply units and combination thereof - Part 2-12: Particular requirements and tests for constant voltage transformers and power supply units for constant voltage
Scope:
IEC 61558-2-12:2024 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with a comprehensive content of the Standard. IEC 61558-2-12:2024 EXV includes the content of the references made to IEC 61558-1:2017.
IEC 61558-2-12:2024 deals with the safety of constant voltage transformers for general applications and power supply units for constant voltage for general applications. Constant voltage transformers incorporating electronic circuits are also covered by this document.
This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) adjustment of structure and references in accordance with IEC 61558-1:2017;
b) description of constructions moved to IEC 61558-1:2017;
c) new symbol for power supply unit with linearly regulated output voltage.
It has the status of a group safety publication in accordance with IEC Guide 104.
IEC 61558-2-12:2024 deals with the safety of constant voltage transformers for general applications and power supply units for constant voltage for general applications. Constant voltage transformers incorporating electronic circuits are also covered by this document.
This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) adjustment of structure and references in accordance with IEC 61558-1:2017;
b) description of constructions moved to IEC 61558-1:2017;
c) new symbol for power supply unit with linearly regulated output voltage.
It has the status of a group safety publication in accordance with IEC Guide 104.
Base documents:
IEC 62501:2024
Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) power transmission - Electrical testing
Scope:
IEC 62501:2024 applies to self-commutated converter valves, for use in a three-phase bridge voltage sourced converter (VSC) for high voltage DC power transmission or as part of a back-to-back link, and to dynamic braking valves. It is restricted to electrical type and production tests. This document can be used as a guide for testing of high-voltage VSC valves used in energy storage systems (ESS). The tests specified in this document are based on air insulated valves. The test requirements and acceptance criteria can be used for guidance to specify the electrical type and production tests of other types of valves. This edition includes the following significant technical changes with respect to the previous edition:
a) Conditions for use of evidence in lieu are inserted as a new Table 1;
b) Test parameters for valve support DC voltage test, 7.3.2, and MVU DC voltage test, 8.4.1, updated;
c) AC-DC voltage test between valve terminals, Clause 9, is restructured and alternative tests, by individual AC and DC voltage tests, added in 9.4.2;
d) Partial discharge test in routine test program is removed;
e) More information on valve component fault tolerance, Annex B, is added;
f) Valve losses determination is added as Annex C.
a) Conditions for use of evidence in lieu are inserted as a new Table 1;
b) Test parameters for valve support DC voltage test, 7.3.2, and MVU DC voltage test, 8.4.1, updated;
c) AC-DC voltage test between valve terminals, Clause 9, is restructured and alternative tests, by individual AC and DC voltage tests, added in 9.4.2;
d) Partial discharge test in routine test program is removed;
e) More information on valve component fault tolerance, Annex B, is added;
f) Valve losses determination is added as Annex C.
Base documents:
IEC 62973-3:2024
Railway applications - Rolling stock - Batteries for auxiliary power supply systems - Part 3: Lead acid batteries
Scope:
IEC 62973-3:2024 establishes the framework for the selection and operation of lead acid batteries of the VRLA type for auxiliary power supply systems on rolling stock of railways and complements IEC 62973-1, unless otherwise specified. This document provides guidance and links to standards for the required battery qualification tests procedures and safety measures to be implemented. In this document, the most appropriate clauses of these cited standards have been selected and adapted as needed to reflect the intended use of these batteries as auxiliary power sources on rolling stock of railways.
The battery-specific requirements for subcomponents of battery systems such as containers, charging controls, temperature probes, nameplates and similar are covered in this document as needed.
Charging systems are excluded from the scope of this document.
The battery-specific requirements for subcomponents of battery systems such as containers, charging controls, temperature probes, nameplates and similar are covered in this document as needed.
Charging systems are excluded from the scope of this document.
Base documents:
IEC 62386-302:2017/AMD1:2024
Amendment 1 - Digital addressable lighting interface - Part 302: Particular requirements - Input devices - Absolute input devices
Scope:
Base documents:
IEC TR 63127:2019/AMD1:2024
Amendment 1 - Guideline for the system design of HVDC converter stations with line-commutated converters
Scope:
Base documents:
IEC 62386-302:2017+AMD1:2024 CSV
Digital addressable lighting interface - Part 302: Particular requirements - Input devices - Absolute input devices
Scope:
IEC 62386-302:2017+AMD1:2024 CSV specifies a bus system for control by digital signals of electronic lighting equipment which is in line with the requirements of IEC 61347, with the addition of DC supplies. This document is only applicable to IEC 62386-103:2014 and IEC 62386-103:2014/AMD1:— input devices that make the lighting control system sensitive to absolute input devices such as switches or sliders. An absolute input device always has a deterministic state, such as a position between start and end point.
Base documents:
IEC TR 63127:2019+AMD1:2024 CSV
Guideline for the system design of HVDC converter stations with line-commutated converters
Scope:
IEC TR 63127:2019+AMD1:2024 CSV focuses on the system design of converter stations. It is applicable to point-to-point and back-to-back HVDC systems based on line-commutated converter (LCC) technology. This document provides guidance and supporting information on the procedure for system design and the technical issues involved in the system design of HVDC transmission projects for both purchaser and potential suppliers. It can be used as the basis for drafting a procurement specification and as a guide during project implementation.
Base documents:
IEC 62386-303:2017/AMD1:2024
Amendment 1 - Digital addressable lighting interface - Part 303: Particular requirements - Input devices - Occupancy sensor
Scope:
Base documents:
IEC 62386-303:2017+AMD1:2024 CSV
Digital addressable lighting interface - Part 303: Particular requirements - Input devices - Occupancy sensor
Scope:
IEC 62386-303:2017+AMD1:2024 CSV specifies a bus system for control by digital signals of electronic lighting equipment which is in line with the requirements of IEC 61347, with the addition of DC supplies. This document is only applicable to IEC 62386-103:2014 and IEC 62386-103:2014/AMD1:— input devices that deliver occupancy information to the lighting control system through movement or presence sensing.
Base documents:
IEC 62386-304:2017/AMD1:2024
Amendment 1 - Digital addressable lighting interface - Part 304: Particular requirements - Input devices - Light sensor
Scope:
Base documents:
IEC 62386-304:2017+AMD1:2024 CSV
Digital addressable lighting interface - Part 304: Particular requirements - Input devices - Light sensor
Scope:
IEC 62386-304:2017+AMD1:2024 CSV specifies a bus system for control by digital signals of electronic lighting equipment which is in line with the requirements of IEC 61347, with the addition of DC supplies. This document is only applicable to IEC 62386-103:2014 and IEC 62386-103:2014/AMD1:— input devices that deliver illuminance level information to the lighting control system through light level sensing.
Base documents:
IEC 62271-214:2024
High-voltage switchgear and controlgear - Part 214: Internal arc classification for AC metal-enclosed pole-mounted switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
Scope:
IEC 62271-214:2024 specifies requirements for internal arc classification of AC metal-enclosed pole-mounted switchgear and controlgear with rated voltages above 1 kV and up to and including 52 kV with service frequencies up to and including 60 Hz. This document is applicable to three-phase, two-phase and single-phase open terminal equipment for which an internal arc classification is assigned. Enclosures may include fixed and removable components and may be filled with fluid (liquid or gas) to provide insulation. This second edition cancels and replaces the first edition published in 2019. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) indicators positioning update;
b) neutral earthing connection of the test circuit for three-phase tests;
c) general review for consistency with IEC 62271-200, Ed.3.0:2021.
a) indicators positioning update;
b) neutral earthing connection of the test circuit for three-phase tests;
c) general review for consistency with IEC 62271-200, Ed.3.0:2021.
Base documents:
Replaces:
IEC 62271-214:2019
IEC 62271-214:2024 CMV
High-voltage switchgear and controlgear - Part 214: Internal arc classification for AC metal-enclosed pole-mounted switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
Scope:
IEC 62271-214 CMV contains both the official standard and its commented version. The commented version provides you with a quick and easy way to compare all the changes between IEC 62271-214:2024 edition 2.0 and the previous IEC 62271-214:2019 edition 1.0. Furthermore, comments from IEC TC SC 17C experts are provided to explain the reasons of the most relevant changes, or to clarify any part of the content.
IEC 62271-214:2024 specifies requirements for internal arc classification of AC metal-enclosed pole-mounted switchgear and controlgear with rated voltages above 1 kV and up to and including 52 kV with service frequencies up to and including 60 Hz. This document is applicable to three-phase, two-phase and single-phase open terminal equipment for which an internal arc classification is assigned. Enclosures may include fixed and removable components and may be filled with fluid (liquid or gas) to provide insulation. This second edition cancels and replaces the first edition published in 2019. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) indicators positioning update;
b) neutral earthing connection of the test circuit for three-phase tests;
c) general review for consistency with IEC 62271-200, Ed.3.0:2021.
IEC 62271-214:2024 specifies requirements for internal arc classification of AC metal-enclosed pole-mounted switchgear and controlgear with rated voltages above 1 kV and up to and including 52 kV with service frequencies up to and including 60 Hz. This document is applicable to three-phase, two-phase and single-phase open terminal equipment for which an internal arc classification is assigned. Enclosures may include fixed and removable components and may be filled with fluid (liquid or gas) to provide insulation. This second edition cancels and replaces the first edition published in 2019. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) indicators positioning update;
b) neutral earthing connection of the test circuit for three-phase tests;
c) general review for consistency with IEC 62271-200, Ed.3.0:2021.
Base documents:
CWA 18095:2024
Recyclability of novel and sustainable energy harvesting and storage technologies for IoT and wireless sensor networks
Scope:
This document compiles the techniques identified for the recovery of novel and high-value materials from end-of-life energy harvesting devices used for IoT and wireless sensor networks.
The CWA is applicable to recoverable materials and components considered of interest based on the design and composition of the Energy Harvesting Systems (EHSs) devices defined in this document: Polyvinylidene fluoride (PVDF), silver electrodes, polyimide, fiberglass/resin composite, copper, single walled carbon nanotube (SWCNT), polymeric matrices, aluminium, polyethylene terephthalate (PET) and carbon particles.
The CWA is applicable to recoverable materials and components considered of interest based on the design and composition of the Energy Harvesting Systems (EHSs) devices defined in this document: Polyvinylidene fluoride (PVDF), silver electrodes, polyimide, fiberglass/resin composite, copper, single walled carbon nanotube (SWCNT), polymeric matrices, aluminium, polyethylene terephthalate (PET) and carbon particles.
Base documents:
CWA 18095:2024
IEC 62477-1:2022/COR1:2024
Corrigendum 1 - Safety requirements for power electronic converter systems and equipment - Part 1: General
Scope:
Corrigendum for IEC 62477-1:2022
Base documents:
CLC/TS 50641-2:2024
Fixed Installations for Railway Applications - Requirements for the validation of simulation tools used for the design of electric traction power supply systems - Part 2: specific DC urban case
Scope:
This document specifies requirements for the test and acceptance of simulation tools used for the design of DC electric traction power supply systems for urban rail guided mass transport systems, such as tramways, elevated and underground railways, mountain railways, trolleybus systems, and magnetically levitated systems which use a contact line system. The validation process will be carried out for the 750 V DC voltage, and other voltages can be validated with the cross-acceptance.
This document focuses on the validation of the core simulation functions comprising the equations and functions which calculate:
- the mechanical movement of trains and
- the load flow of the electrical traction power supply system.
NOTE 1 This document provides only the requirements for demonstration of the algorithms and calculations of core functions. The use of a validated simulation tool in accordance with this document does not in itself, demonstrate good practice in electric traction power supply system design, neither does it guarantee that the simulation models and data for infrastructure or trains used in the tool are correct for a given application. The choice and application of any models and data, of individual system components, in a design is therefore subject to additional verification processes and not in the scope of this document. Competent development of design models and full understanding of the limits of design tools remain requirements in any system design. This document does not reduce any element of the need for competent designers to lead the design process.
This document also specifies procedures for the modification of simulation tools, in particular the limits of applicability of acceptance when tools are modified. These procedures focus on determining whether the core functions of the simulation model are modified.
Because the purpose of this standard deals with the verification of the core functionality, the test case described in this document does not represent an existing network.
NOTE 2 Additionally, the application of this document ensures that the output data of different simulation tools are consistent and verifiable when they are using the same set of input data as given in this document.
This document excludes complex models with active components such as controlled rectifiers and inverters.
This document does not mandate the use of a particular simulation tool in order to validate the design of an electric traction power supply system.
This document does not deal with validation of simulation tools by measurement.
The document is not applicable to the validation of simulation tools with respect to:
- short circuit studies;
- electrical safety studies (e.g. rail potential);
- harmonic studies;
- studies of transient phenomena; and
- electromagnetic compatibility studies over a wide frequency spectrum.
This document focuses on the validation of the core simulation functions comprising the equations and functions which calculate:
- the mechanical movement of trains and
- the load flow of the electrical traction power supply system.
NOTE 1 This document provides only the requirements for demonstration of the algorithms and calculations of core functions. The use of a validated simulation tool in accordance with this document does not in itself, demonstrate good practice in electric traction power supply system design, neither does it guarantee that the simulation models and data for infrastructure or trains used in the tool are correct for a given application. The choice and application of any models and data, of individual system components, in a design is therefore subject to additional verification processes and not in the scope of this document. Competent development of design models and full understanding of the limits of design tools remain requirements in any system design. This document does not reduce any element of the need for competent designers to lead the design process.
This document also specifies procedures for the modification of simulation tools, in particular the limits of applicability of acceptance when tools are modified. These procedures focus on determining whether the core functions of the simulation model are modified.
Because the purpose of this standard deals with the verification of the core functionality, the test case described in this document does not represent an existing network.
NOTE 2 Additionally, the application of this document ensures that the output data of different simulation tools are consistent and verifiable when they are using the same set of input data as given in this document.
This document excludes complex models with active components such as controlled rectifiers and inverters.
This document does not mandate the use of a particular simulation tool in order to validate the design of an electric traction power supply system.
This document does not deal with validation of simulation tools by measurement.
The document is not applicable to the validation of simulation tools with respect to:
- short circuit studies;
- electrical safety studies (e.g. rail potential);
- harmonic studies;
- studies of transient phenomena; and
- electromagnetic compatibility studies over a wide frequency spectrum.
Base documents:
CLC/TS 50641-2:2024
EVS-EN IEC 62477-1:2023/AC:2024
Safety requirements for power electronic converter systems and equipment - Part 1: General
Scope:
Corrigendum to EN IEC 62477-1:2023
Base documents:
EN IEC 62477-1:2023/AC:2024-04; IEC 62477-1:2022/COR1:2024
Replaced standards
IEC 61558-2-12:2011
Safety of transformers, reactors, power supply units and combination thereof - Part 2-12: Particular requirements and tests for constant voltage transformers and power supply units for constant voltage
Scope:
IEC 61558-2-12:2011 deals with the safety of constant voltage transformers for general applications and power supply units for constant voltage for general applications. Constant voltage transformers incorporating electronic circuits are also covered by this standard. This second edition cancels and replaces the first edition published in 2001. It constitutes a technical revision. The main changes consist of updating this part in accordance with IEC 61558-1:2009. This part has the status of a group safety publication in accordance with IEC Guide 104: The preparation of safety publications and the use of basic safety publications and group safety publications. The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for implementation nationally not earlier than 12 months from the date of publication. In the meantime, the previous edition can still be ordered by contacting your local IEC member National Committee or the IEC Central Office.
This publication is to be read in conjunction with IEC 61558-1:2005.
This publication is to be read in conjunction with IEC 61558-1:2005.
Base documents:
IEC 62501:2009+AMD1:2014 CSV
Voltage sourced converter (VSC) valves for high-voltage direct
current (HVDC) power transmission - Electrical testing
Scope:
IEC 62501:2009+A1:2014 applies to self-commutated converter valves, for use in a three-phase bridge voltage sourced converter (VSC) for high voltage d.c. power transmission or as part of a back-to-back link. It is restricted to electrical type and production tests.
This consolidated version consists of the first edition (2009)
and its amendment 1 (2014). Therefore, no need to order amendment in
addition to this publication.
This consolidated version consists of the first edition (2009)
and its amendment 1 (2014). Therefore, no need to order amendment in
addition to this publication.
Base documents:
EVS-EN 60034-2-1:2014
Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles)
Scope:
IEC 60034-2-1:2014(B) is intended to establish methods of determining efficiencies from tests, and also to specify methods of obtaining specific losses. This standard applies to d.c. machines and to a.c. synchronous and induction machines of all sizes within the scope of IEC 60034-1. This new edition includes the following significant technical changes with respect to the previous edition: grouping of the test methods into preferred methods and methods for field or routine testing; addition of the details of the requirements regarding instrumentation; addition of the description of tests required for a specific method in the same sequence as requested for the performance of the test.
Base documents:
IEC 60034-2-1:2014; EN 60034-2-1:2014
Replaced:
EVS-EN IEC 60034-2-1:2024
EVS-EN 60034-2-2:2010
Rotating electrical machines - Part 2-2: Specific methods for determining separate losses of large machines from tests - Supplement to IEC 60034-2-1
Scope:
This part of IEC 60034 applies to large rotating electrical machines and establishes additional methods of determining separate losses and to define an efficiency supplementing IEC 60034-2-1. These methods apply when full-load testing is not practical and result in a greater uncertainty. NOTE In situ testing according to the calorimetric method for full-load conditions is recognized. The specific methods described are: – Calibrated-machine method. – Retardation method. – Calorimetric method.
Base documents:
IEC 60034-2-2:2010; EN 60034-2-2:2010
Replaced:
EVS-EN IEC 60034-2-2:2024
EVS-EN 60079-26:2015
Explosive atmospheres - Part 26: Equipment with equipment protection level (EPL) Ga
Scope:
This part of IEC 60079 specifies alternative requirements for construction, test and marking for electrical equipment that provides Equipment Protection Level (EPL) Ga when single standardised Types of Protection (e.g. Ex “ia” , Ex “ma”, Ex “da”) cannot be applied. This
standard also applies to equipment mounted across a boundary where different Equipment Protection Levels may be required.
EXAMPLE: Equipment installed in the wall of a storage vessel containing Zone 0 (requiring EPL Ga) inside an area defined as Zone 1 (requiring EPL Gb).
This electrical equipment, within the operational parameters specified by the manufacturer, ensures a very high Level of Protection that includes rare malfunctions related to the equipment or two malfunctions occurring independently of each other.
NOTE A malfunction may result from a failure of the component parts of the electrical equipment or from anticipated externally applied influences. Two independent malfunctions which may occur more frequently and which, separately, would not create an ignition hazard but which, in combination, could create a potential ignition hazard, are regarded as occurring together to form a rare malfunction.
This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirement of
this standard takes precedence.
standard also applies to equipment mounted across a boundary where different Equipment Protection Levels may be required.
EXAMPLE: Equipment installed in the wall of a storage vessel containing Zone 0 (requiring EPL Ga) inside an area defined as Zone 1 (requiring EPL Gb).
This electrical equipment, within the operational parameters specified by the manufacturer, ensures a very high Level of Protection that includes rare malfunctions related to the equipment or two malfunctions occurring independently of each other.
NOTE A malfunction may result from a failure of the component parts of the electrical equipment or from anticipated externally applied influences. Two independent malfunctions which may occur more frequently and which, separately, would not create an ignition hazard but which, in combination, could create a potential ignition hazard, are regarded as occurring together to form a rare malfunction.
This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirement of
this standard takes precedence.
Base documents:
IEC 60079-26:2014; EN 60079-26:2015
Replaced:
EVS-EN IEC 60079-26:2024
IEC 62501:2009+AMD1:2014+AMD2:2017 CSV
Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) power transmission - Electrical testing
Scope:
IEC 62501:2009+A1:2014+A2:2017 applies to self-commutated converter valves, for use in a three-phase bridge voltage sourced converter (VSC) for high voltage d.c. power transmission or as part of a back-to-back link. It is restricted to electrical type and production tests.
This consolidated version consists of the first edition (2009), its amendment 1 (2014) and its amendment 2 (2017). Therefore, no need to order amendment in addition to this publication.
This consolidated version consists of the first edition (2009), its amendment 1 (2014) and its amendment 2 (2017). Therefore, no need to order amendment in addition to this publication.
Base documents:
IEC 62501:2009/AMD2:2017
Amendment 1 - Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) power transmission - Electrical testing
Scope:
Amendment for IEC 62501:2009
Base documents:
Replaced:
IEC 62501:2024
IEC 62501:2009
Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) power transmission - Electrical testing
Scope:
IEC 62501:2009 applies to self-commutated converter valves, for use in a three-phase bridge voltage sourced converter (VSC) for high voltage d.c. power transmission or as part of a back-to-back link. It is restricted to electrical type and production tests.
Base documents:
Replaced:
IEC 62501:2024
EVS-EN IEC 60034-2-3:2020
Rotating electrical machines - Part 2-3: Specific test methods for determining losses and efficiency of converter-fed AC motors
Scope:
IEC 60034-2-3:2020 specifies test methods and an interpolation procedure for determining losses and efficiencies of converter-fed motors within the scope of IEC 60034-1:2017. The motor is then part of a variable frequency power drive system (PDS) as defined in IEC 61800-9-2:2017.
Applying the approach of the comparable converter, the motor efficiency determined by use of this document is applicable for comparison of different motor designs only.
The document also specifies procedures to determine motor losses at any load point (torque, speed) within the base speed range (constant torque range, constant flux range) based on determination of losses at seven standardized load points. This procedure is applicable to any variable speed AC motor (induction and synchronous) rated according to IEC 60034-1:2017 for operation on a variable frequency and variable voltage power supply.
Applying the approach of the comparable converter, the motor efficiency determined by use of this document is applicable for comparison of different motor designs only.
The document also specifies procedures to determine motor losses at any load point (torque, speed) within the base speed range (constant torque range, constant flux range) based on determination of losses at seven standardized load points. This procedure is applicable to any variable speed AC motor (induction and synchronous) rated according to IEC 60034-1:2017 for operation on a variable frequency and variable voltage power supply.
Base documents:
IEC 60034-2-3:2020; EN IEC 60034-2-3:2020
Replaced:
EVS-EN IEC 60034-2-3:2024
IEC 62271-214:2019
High-voltage switchgear and controlgear - Part 214: Internal arc classification for metal-enclosed pole-mounted switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
Scope:
IEC 62271-214:2019 specifies requirements for internal arc classification of metal-enclosed pole-mounted switchgear installations used for alternating current with rated voltages above 1 kV and up to and including 52 kV with service frequencies up to and including 60 Hz. This document is applicable to three-phase, two-phase and single phase equipment. Enclosures may include fixed and removable components and may be filled with fluid (liquid or gas) to provide insulation.
Base documents:
Replaced:
IEC 62271-214:2024
IEC 62501:2009/AMD1:2014
Amendment 1 - Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) power transmission - Electrical testing
Scope:
Base documents:
Replaced:
IEC 62501:2024
Drafts
prEN IEC 62031:2024
LED modules - Safety requirements
Scope:
This document specifies safety requirements for LED modules for operation at supply of a DC supply of up to 1 500 V or an AC supply up to 1 000 V. This document does not include requirements for performance characteristics of LED light sources.
NOTE 1 LED light sources as defined in IEC 60050-845:2020, 845-27-053 can take the form of an LED module or an LED lamp.
This document does not apply to:
– LED packages;
– LED light sources for automotive lighting;
– OLED light sources;
NOTE 2 Independent LED modules (see IEC 60050, 845-27-064) are considered luminaires with integral LED module(s) and are covered by the IEC 60598 series.
NOTE 3 LED modules that are an integral component of the luminaire are covered by the requirements within IEC 60598-1:XXXX, Clause 4.3.1, referencing this document as far as applicable.
NOTE 4 Where the word "LED module" is used in this document, it is understood to be "built-in LED module” as defined in IEC 60050-845:2020, 845-27-062.”
NOTE 1 LED light sources as defined in IEC 60050-845:2020, 845-27-053 can take the form of an LED module or an LED lamp.
This document does not apply to:
– LED packages;
– LED light sources for automotive lighting;
– OLED light sources;
NOTE 2 Independent LED modules (see IEC 60050, 845-27-064) are considered luminaires with integral LED module(s) and are covered by the IEC 60598 series.
NOTE 3 LED modules that are an integral component of the luminaire are covered by the requirements within IEC 60598-1:XXXX, Clause 4.3.1, referencing this document as far as applicable.
NOTE 4 Where the word "LED module" is used in this document, it is understood to be "built-in LED module” as defined in IEC 60050-845:2020, 845-27-062.”
Base documents:
34A/2390/CDV; prEN IEC 62031:2024
prEN IEC 60205:2024
Calculation of the effective parameters of magnetic piece parts
Scope:
This document specifies uniform rules for the calculation of the effective parameters of closed circuits of ferromagnetic material.
Base documents:
51/1486/CDV; prEN IEC 60205:2024
prEN IEC 63555:2024
LED light sources - Performance requirements
Scope:
This document specifies performance requirements for LED light sources connected to a DC supply of up to 1 500 V or an AC supply of up to 1 000 V. This document specifies requirements and test methods for electrical, photometric, colorimetric and dimensional characteristics.
NOTE 1 LED light sources as defined in IEV 845-27-053 can take the form of an LED module or an LED lamp.
This document covers LED light sources that produce light with a correlated colour temperature typically between 2 200 and 6 500 K, based on inorganic LED technology.
NOTE 2 Correlated colour temperature is a quantity used to describe the chromaticity appearance of a light source emitting white light.
NOTE 3 The scope is not limiting for values outside the mentioned CCT range. Therefore, the addition of the word “typically” is important. The CCT preferred values used in this document are specified in Annex C.
NOTE 4 See the definition of correlated colour temperature in IEC 60050-845:2020, 845-23-068.
The requirements of this document relate only to type testing.
This document does not apply to:
– LED packages;
– LED light sources for automotive lighting;
– LED light sources for horticultural lighting;
– OLED light sources.
NOTE 5 Independent LED modules (see IEC 60050, 845-27-064) are considered as luminaires and will be covered by a future revision of IEC 62722-2-1: Luminaire performance - Part 2-1: Particular requirements - LED luminaires.
The lifetime of LED light sources is in most cases much longer than the practical test times. Consequently, verification of manufacturer’s lifetime claims cannot be made in a sufficiently confident way because projecting test data further in time is not fully reliable. For that reason the acceptance or rejection of a manufacturer's lifetime claim is out of the scope of this document.
NOTE 1 LED light sources as defined in IEV 845-27-053 can take the form of an LED module or an LED lamp.
This document covers LED light sources that produce light with a correlated colour temperature typically between 2 200 and 6 500 K, based on inorganic LED technology.
NOTE 2 Correlated colour temperature is a quantity used to describe the chromaticity appearance of a light source emitting white light.
NOTE 3 The scope is not limiting for values outside the mentioned CCT range. Therefore, the addition of the word “typically” is important. The CCT preferred values used in this document are specified in Annex C.
NOTE 4 See the definition of correlated colour temperature in IEC 60050-845:2020, 845-23-068.
The requirements of this document relate only to type testing.
This document does not apply to:
– LED packages;
– LED light sources for automotive lighting;
– LED light sources for horticultural lighting;
– OLED light sources.
NOTE 5 Independent LED modules (see IEC 60050, 845-27-064) are considered as luminaires and will be covered by a future revision of IEC 62722-2-1: Luminaire performance - Part 2-1: Particular requirements - LED luminaires.
The lifetime of LED light sources is in most cases much longer than the practical test times. Consequently, verification of manufacturer’s lifetime claims cannot be made in a sufficiently confident way because projecting test data further in time is not fully reliable. For that reason the acceptance or rejection of a manufacturer's lifetime claim is out of the scope of this document.
Base documents:
34A/2395/CDV; prEN IEC 63555:2024
prEN IEC 63554:2024
LED lamps - Safety requirements
Scope:
This document specifies safety requirements for LED lamps for operation at supply of a DC supply of up to 1 500 V or an AC supply up to 1 000 V. This document does not include requirements for performance characteristics of LED light sources.
NOTE LED light sources as defined in IEC 60050-845:2020, 845-27-053 can take the form of an LED module or an LED lamp. LED lamp is defined in IEC 60050-845:2020, 845-27-054.
This document does not apply to:
– LED packages;
– LED light sources for automotive lighting;
– OLED light sources;
This document is only applicable to the product categories listed in Table 1.
NOTE LED light sources as defined in IEC 60050-845:2020, 845-27-053 can take the form of an LED module or an LED lamp. LED lamp is defined in IEC 60050-845:2020, 845-27-054.
This document does not apply to:
– LED packages;
– LED light sources for automotive lighting;
– OLED light sources;
This document is only applicable to the product categories listed in Table 1.
Base documents:
34A/2394/CDV; prEN IEC 63554:2024
prEN IEC 60068-2-78:2024
Environmental testing - Part 2-78: Tests - Test cab: Damp heat, steady state
Scope:
This document establishes a test method for determining the ability of components or equipment to withstand transportation, storage and use under conditions of high humidity.
The object of this standard is to investigate the effect of high humidity at constant temperature without condensation on a specimen over a prescribed period.
It is applicable to small equipment or components as well as large equipment and can be applied to both heat-dissipating and non-heat-dissipating specimens.
The object of this standard is to investigate the effect of high humidity at constant temperature without condensation on a specimen over a prescribed period.
It is applicable to small equipment or components as well as large equipment and can be applied to both heat-dissipating and non-heat-dissipating specimens.
Base documents:
104/1049/CDV; prEN IEC 60068-2-78:2024
prEN 50317:2024
Railway applications - Current collection systems - Requirements for and validation of measurements of the dynamic interaction between pantograph and overhead contact line
Scope:
This document specifies the functional requirements for output and accuracy of measurements of the dynamic interaction between pantograph and overhead contact line.
Base documents:
prEN 50317:2024
EN 50122-3:2022/prA1:2024
Fixed installations for railway applications - Electrical safety, earthing and the return circuit - Part 3: Mutual Interaction of AC and DC traction systems
Scope:
This document specifies requirements for the protective provisions relating to electrical safety in fixed installations, when it is reasonably likely that hazardous voltages or currents will arise for people or equipment, as a result of the mutual interaction of AC and DC electric power supply traction systems.
It also applies to all aspects of fixed installations that are necessary to ensure electrical safety during maintenance work within electric power supply traction systems.
The mutual interaction can be of any of the following kinds:
- parallel running of AC and DC electric traction power supply systems;
- crossing of AC and DC electric traction power supply systems;
- shared use of tracks, buildings or other structures;
- system separation sections between AC and DC electric traction power supply systems.
The scope is limited to galvanic, inductive and capacitive coupling of the fundamental frequency voltages and currents and their superposition.
This document applies to all new lines, extensions and to all major revisions to existing lines for the following electric traction power supply systems:
a) railways;
b) guided mass transport systems such as:
1) tramways,
2) elevated and underground railways,
3) mountain railways,
4) magnetically levitated systems, which use a contact line system,
5) trolleybus systems, and
6) electric traction power supply systems for road vehicles, which use an overhead contact line system;
c) material transportation systems. The document does not apply to:
a) electric traction power supply systems in underground mines;
b) cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition structures) in so far as these are not supplied directly or via transformers from the contact line system and are not endangered by the electric traction power supply system for railways;
c) suspended cable cars;
d) funicular railways;
e) procedures or rules for maintenance.
The rules given in this document can also be applied to mutual interaction with non-electrified tracks, if hazardous voltages or currents can arise from AC or DC electric traction power supply systems.
It also applies to all aspects of fixed installations that are necessary to ensure electrical safety during maintenance work within electric power supply traction systems.
The mutual interaction can be of any of the following kinds:
- parallel running of AC and DC electric traction power supply systems;
- crossing of AC and DC electric traction power supply systems;
- shared use of tracks, buildings or other structures;
- system separation sections between AC and DC electric traction power supply systems.
The scope is limited to galvanic, inductive and capacitive coupling of the fundamental frequency voltages and currents and their superposition.
This document applies to all new lines, extensions and to all major revisions to existing lines for the following electric traction power supply systems:
a) railways;
b) guided mass transport systems such as:
1) tramways,
2) elevated and underground railways,
3) mountain railways,
4) magnetically levitated systems, which use a contact line system,
5) trolleybus systems, and
6) electric traction power supply systems for road vehicles, which use an overhead contact line system;
c) material transportation systems. The document does not apply to:
a) electric traction power supply systems in underground mines;
b) cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition structures) in so far as these are not supplied directly or via transformers from the contact line system and are not endangered by the electric traction power supply system for railways;
c) suspended cable cars;
d) funicular railways;
e) procedures or rules for maintenance.
The rules given in this document can also be applied to mutual interaction with non-electrified tracks, if hazardous voltages or currents can arise from AC or DC electric traction power supply systems.
Base documents:
EN 50122-3:2022/prA1:2024
EN 50122-2:2022/prA1:2024
Fixed installations for railway applications - Electrical safety, earthing and the return circuit - Part 2: Provisions against the effects of stray currents caused by DC traction systems
Scope:
This document specifies requirements for protective provisions against the effects of stray currents, which result from the operation of DC electric traction power supply systems.
As several decades' experience has not shown evident corrosion effects from AC electric traction power supply systems, this document only deals with stray currents flowing from a DC electric traction power supply system.
This document applies to all metallic fixed installations which form part of the traction system, and also to any other metallic components located in any position in the earth, which can carry stray currents resulting from the operation of the railway system.
This document applies to all new DC lines and to all major revisions to existing DC lines. The principles can also be applied to existing electrified transportation systems where it is necessary to consider the effects of stray currents.
This document does not specify working rules for maintenance but provides design requirements to allow maintenance. The range of application includes:
a) railways,
b) guided mass transport systems such as:
1) tramways,
2) elevated and underground railways,
3) mountain railways,
4) magnetically levitated systems, which use a contact line system, and
5) trolleybus systems,
c) material transportation systems.
This document does not apply to
a) electric traction power supply systems in underground mines,
b) cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition structures) in so far as these are not supplied directly from the contact line system and are not endangered by the electric traction power supply system,
c) suspended cable cars,
d) funicular railways.
As several decades' experience has not shown evident corrosion effects from AC electric traction power supply systems, this document only deals with stray currents flowing from a DC electric traction power supply system.
This document applies to all metallic fixed installations which form part of the traction system, and also to any other metallic components located in any position in the earth, which can carry stray currents resulting from the operation of the railway system.
This document applies to all new DC lines and to all major revisions to existing DC lines. The principles can also be applied to existing electrified transportation systems where it is necessary to consider the effects of stray currents.
This document does not specify working rules for maintenance but provides design requirements to allow maintenance. The range of application includes:
a) railways,
b) guided mass transport systems such as:
1) tramways,
2) elevated and underground railways,
3) mountain railways,
4) magnetically levitated systems, which use a contact line system, and
5) trolleybus systems,
c) material transportation systems.
This document does not apply to
a) electric traction power supply systems in underground mines,
b) cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition structures) in so far as these are not supplied directly from the contact line system and are not endangered by the electric traction power supply system,
c) suspended cable cars,
d) funicular railways.
Base documents:
EN 50122-2:2022/prA1:2024
EN 50122-1:2022/prA1:2024
Fixed installations for railway applications - Electrical safety, earthing and the return circuit - Part 1: Protective provisions against electric shock
Scope:
This document specifies requirements for the protective provisions relating to electrical safety in fixed installations associated with AC and/or DC traction systems and to any installations that can be endangered by the electric traction power supply system. This also includes requirements applicable to vehicles on electrified lines. It also applies to all aspects of fixed installations which are necessary to ensure electrical safety during maintenance work within electric traction power supply systems.
This document applies to new electric traction power supply systems and major revisions to electric traction power supply systems for:
a) railways;
b) guided mass transport systems such as 1) tramways,
2) elevated and underground railways,
3) mountain railways,
4) trolleybus systems,
5) electric traction power supply systems for road vehicles, which use an overhead contact line system, and
6) magnetically levitated systems, which use a contact line system;
c) material transportation systems.
This document does not apply to:
a) electric traction power supply systems in underground mines,
b) cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition
structures) in so far as these are not supplied directly or via transformers from the contact line system and are not
endangered by the electric traction power supply system,
c) suspended cable cars,
d) funicular railways,
e) existing vehicles.
This document does not specify working rules for maintenance. The requirements within this document related to protection against electric shock are applicable to persons only.
This document applies to new electric traction power supply systems and major revisions to electric traction power supply systems for:
a) railways;
b) guided mass transport systems such as 1) tramways,
2) elevated and underground railways,
3) mountain railways,
4) trolleybus systems,
5) electric traction power supply systems for road vehicles, which use an overhead contact line system, and
6) magnetically levitated systems, which use a contact line system;
c) material transportation systems.
This document does not apply to:
a) electric traction power supply systems in underground mines,
b) cranes, transportable platforms and similar transportation equipment on rails, temporary structures (e.g. exhibition
structures) in so far as these are not supplied directly or via transformers from the contact line system and are not
endangered by the electric traction power supply system,
c) suspended cable cars,
d) funicular railways,
e) existing vehicles.
This document does not specify working rules for maintenance. The requirements within this document related to protection against electric shock are applicable to persons only.
Base documents:
EN 50122-1:2022/prA1:2024
prEN IEC 63395:2024
Sustainable management of waste electrical and electronic equipment (e-waste) - Proposed horizontal publication
Scope:
This document specifies requirements and provides guidance for the sustainable management of waste electrical and electronic equipment (e-waste) from collection to returning recovered products, components or materials to the value chain.
The 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 international standard will help an organization to achieve sustainability outcomes within the context of e-waste management, including
• enhancement of sustainability performance and achievement of sustainability objectives;
• fulfilment of compliance obligations.
The document is applicable to any organization, regardless of size, type and nature.
The document applies to the environmental and human health and safety aspects of e-waste management activities, that the organization determines it can either control or influence, considering a lifecycle perspective.
Note: 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.
The 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 international standard will help an organization to achieve sustainability outcomes within the context of e-waste management, including
• enhancement of sustainability performance and achievement of sustainability objectives;
• fulfilment of compliance obligations.
The document is applicable to any organization, regardless of size, type and nature.
The document applies to the environmental and human health and safety aspects of e-waste management activities, that the organization determines it can either control or influence, considering a lifecycle perspective.
Note: 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.
Base documents:
111/750/CDV; prEN IEC 63395:2024
prEN IEC 63522-33:2024
Electrical relays - Tests and Measurements - Part 33: Continuity of protective earth connection
Scope:
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 specimens to perform under expected conditions of transportation, storage and all aspects of operational use.
It provides test methods to ensure that the connection between an earth terminal and parts required to be connected thereto is of low resistance.
It provides test methods to ensure that the connection between an earth terminal and parts required to be connected thereto is of low resistance.
Base documents:
94/983/CDV; prEN IEC 63522-33:2024
prEN IEC 63522-34:2024
Electrical relays - Testing and measurement - Part 34: Fluid contamination
Scope:
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 specimens to perform under expected conditions of transportation, storage and all aspects of operational use.
It provides tests to ensure that a relay is suitable for use when subjected to contamination by fluids found in aerospace applications and similar. This test applies to RT III to RT V relays only.
It provides tests to ensure that a relay is suitable for use when subjected to contamination by fluids found in aerospace applications and similar. This test applies to RT III to RT V relays only.
Base documents:
94/984/CDV; prEN IEC 63522-34:2024
prEN IEC 63522-0:2024
Electrical relays - Tests and Measurements - Part 0: General and Guidance
Scope:
This document includes a series of methods for testing along with their appropriate severities and conditions for measurements and tests designed to assess the ability of specimens to perform under expected conditions of transportation, storage and all aspects of operational use.
This part of IEC 63522 series specifies the general condition conditions to be applied for all testing if not otherwise specified and provide general guidance to be used in conjunction with all other IEC 63522 parts.
This part of IEC 63522 series specifies the general condition conditions to be applied for all testing if not otherwise specified and provide general guidance to be used in conjunction with all other IEC 63522 parts.
Base documents:
94/990/CDV; prEN IEC 63522-0:2024