Skip to main content

Information service

29 Electrical engineering
New standards
EVS-EN IEC 60034-11:2024
Rotating electrical machines - Part 11: Thermal protection
Scope: IEC 60034-11:2020 specifies requirements relating to the use of thermal protectors and thermal detectors incorporated into the stator windings or placed in other suitable positions in induction machines in order to protect them against serious damage due to thermal overloads. It applies to single-speed three-phase 50 Hz or 60 Hz cage induction motors in accordance with IEC 60034-1 and IEC 60034-12 that:
- have a rated voltage up to 1 000 V;
- are intended for direct-on-line or star-delta starting.
The main changes with respect to the previous edition are:
- the additional specification of winding temperature limits for temperature class 200 (N),
- the increased limits of maximum winding temperatures for overloads with rapid variation,
- the clarification that the motor winding may be permanently damaged after it has been exposed to temperatures
- a clarification of the definition of indirect thermal protection,
- a clarification on the test methods for larger motors.
Base documents: IEC 60034-11:2020; EN IEC 60034-11:2024
EVS-EN IEC 60034-9:2024
Rotating electrical machines - Part 9: Noise limits
Scope: IEC 60034-9:2021 specifies test methods for the determination of sound power level of rotating electrical machines and specifies maximum A-weighted sound power levels for factory acceptance testing of network-supplied, rotating electrical machines in accordance with lEC 60034-1, having methods of cooling according to lEC 60034-6 and degrees of protection according to lEC 60034-5, and having the following characteristics:
- standard design, either AC or DC, without additional special electrical, mechanical, or acoustical modifications intended to reduce the sound power level
- rated output from 1 kW (or kVA) up to and including 5 500 kW (or kVA)
- rated speed not greater than 3 750 min–1
This fifth edition cancels and replaces the fourth edition, published in 2003 and its amendment 1, published in 2007. This edition includes the following significant technical changes with respect to the previous edition:
a) In Table 2 and Table 3 cooling methods IC01, IC11, IC21 and IC31, IC71, IC81 are now covered.
b) This edition adds Table 3 for 60 Hz machines, whereas Table 2, which covers only 50 Hz machines, has no change in levels.
c) In Table 3, grade A is added to harmonize the highest levels seen in IEC and NEMA, whereas grade B was added to harmonize the lowest, more restrictive levels seen in IEC and NEMA.
d) The clause “Determination of noise increments caused by converter supply” has been shifted to Annex B and renamed “Information on typical noise increments caused by converter supply”.
Base documents: IEC 60034-9:2021; EN IEC 60034-9:2024
EVS-IEC 60050-826:2024
International Electrotechnical Vocabulary (IEV) - Part 826: Electrical installations (IEC 60050-826:2022, identical)
Scope: This part of IEC 60050 gives the general terminology used for electrical installations such as
those of residential, industrial or commercial premises. It does not cover systems for distribution
of energy to the public or power generation and transmission for such systems. This new edition
reviews and complements the previous one. An important aim of the revision is to achieve
compliance with IEC 61140:2016. In addition, some new terms have been added from
IEC 60364-8-1:2014 and IEC 60364-8-2:2018. It has the status of a horizontal publication in
accordance with IEC Guide 108, Guidelines for ensuring the coherence of IEC publications –
Horizontal functions, horizontal publications and their application.
This terminology is consistent with the terminology developed in the other specialized parts of
the IEV.
This horizontal publication is primarily intended for use by technical committees in the
preparation of IEC publications in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of
horizontal publications in the preparation of its publications.
Base documents: IEC 60050-826:2022
IEC 60352-2:2024
Solderless connections - Part 2: Crimped connections - General requirements, test methods and practical guidance
Scope: IEC 60352-2:2024 is applicable to solderless crimped connections made with:
- appropriately designed uninsulated or pre-insulated crimp barrels as parts of crimp contacts, terminal ends or splices, and
- stranded wires of 0,05 mm2 to 10 mm2 cross-section or
- solid wires of 0,25 mm to 3,6 mm diameter;
for use in electrical and electronic equipment.
Information on the materials and data from industrial experience is included in addition to the test procedures to provide electrically stable connections under prescribed environmental conditions.
This part of IEC 60352 is not applicable to crimping of coaxial cables.
This part of IEC 60352 determines the suitability of solderless crimped connections as described above, under specified mechanical, electrical and atmospheric conditions and provides a means of comparing test results when the tools used to make the connections are of different designs or manufacture.
Base documents:
EVS-EN IEC 60034-12:2024
Rotating electrical machines - Part 12: Starting performance of single-speed three-phase cage induction motors
Scope: IEC 60034-12:2024 specifies the parameters for eight designs of starting performance of single-speed three-phase 50 Hz or 60 Hz cage induction motors in accordance with IEC 60034‑1 that:
- have a rated voltage up to 1 000 V;
- are intended for direct-on-line or star-delta starting;
- are rated on the basis of duty type S1;
- are constructed to any degree of protection as defined in IEC 60034-5 and explosion protection.
This document also applies to dual voltage motors provided that the flux saturation level is the same for both voltages. This fourth edition cancels and replaces the third edition published in 2016. Aligned with the requirements for explosion protected motors from TC31 WG27
- new clause on methods for measuring locked-rotor current and torque;
- new informative annex on the general current and torque characteristics with locked rotor;
- new informative annex on correction of voltage and frequency;
- aligned with the requirements for explosion protected motors from TC31 WG27.
Base documents: IEC 60034-12:2024; EN IEC 60034-12:2024
EVS-EN IEC 62271-211:2024
High-voltage switchgear and controlgear - Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
Scope: IEC 62271-211:2024 is applicable to single- and three-phase direct connections between gas-insulated metal-enclosed switchgear (GIS) for rated voltages above 52 kV and transformer arrangements to establish electrical and mechanical interchange ability and to determine the limits of supply for the transformer connection. This second edition cancels and replaces the first edition of IEC 62271-211:2014. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) re-numbering of clauses according to IEC 62271-1:2017,
b) Clause 3: updating definition about bushing (3.1), updating some pressure definitions (3.6, 3.7, 3.8, 3.9), rewording definition about proctor density (3.11), new term very-fast-front overvoltage (3.12),
c) Clause 5 (former clause 4): add a subclause 5.1 General, according to IEC 62271-1:2017 and IEC 62271-203:2022,
1) subclause 5.5: new first paragraph, rewording second paragraph,
2) subclause 5.8: modify the term "Rated duration of thermal short-time current" of the bushing,
d) Clause 6 (former Clause 5): restructure and rewording of subclauses:
1) 6.1 (former 5.3): requirements about gas and vacuum tightness of the transformer bushing
2) 6.3 (former 5.2): harmonization with IEC 62271-203:2022 about typical maximum pressure in service for SF6, other gases and gas mixtures,
3) 6.4 (former 5.8), rewording
4) 6.5 (former 5.1), some rewording and modification
5) 6.6 (former 5.4), some rewording, updated references
6) 6.7 (former 5.5), some rewording
7) 6.8 (former 5.6), some rewording
8) 6.9 (former 5.7), slight rewording,
e) Clause 7 (former clause 6) type tests: some rewording and clarifications about references,
f) Clause 8 (former clause 7) routine tests:
1) 8.2 (former 7.2): add a paragraph about SF6-mixtures and other gases than SF6,
2) 8.3 (former 7.3): update reference to relevant on-site test according to IEC 62271‑203:2022,
g) Clause 9 Guide to the selection of switchgear and controlgear (new): informative, to have a reference to IEC 62271-203:2022,
h) Clause 11 (former 10): updated headline and updated reference according to IEC 62271‑1:2017,
i) new Clauses 12 Safety and 13 Environmental aspects: Adding of references to safety and environmental aspects,
j) correction of errors in Corrigendum 2 of IEC 62271-211:2017,
k) modified orientation of Figure 1 to Figure 4 for easier reading of the tables.
Base documents: IEC 62271-211:2024; EN IEC 62271-211:2024
IEC 60691:2023/AMD1:2024
Amendment 1 - Thermal-links - Requirements and application guide
Scope: Amendment to IEC 60691:2023
Base documents:
IEC 60691:2023+AMD1:2024 CSV
Thermal-links - Requirements and application guide
Scope: IEC 60691:2023+AMD1:2024 CSV is applicable to thermal-links intended for incorporation in electrical appliances, electronic equipment and component parts thereof, normally intended for use indoors, in order to protect them against excessive temperatures under abnormal conditions.
NOTE 1 The equipment is not designed to generate heat.
NOTE 2 The effectiveness of the protection against excessive temperatures logically depends upon the position and method of mounting of the thermal-link, as well as upon the current which it is carrying.
This document may be applicable to thermal-links for use under conditions other than indoors, provided that the climatic and other circumstances in the immediate surroundings of such thermal-links are comparable with those in this standard. This document may be applicable to thermal-links in their simplest forms (e.g. melting strips or wires), provided that molten materials expelled during function cannot adversely interfere with the safe use of the equipment, especially in the case of hand-held or portable equipment, irrespective of its position.
Base documents:
IEC TR 61328:2024
Live working - Guidelines for the installation of transmission and distribution line conductors and earth wires - Stringing equipment and accessory items
Scope: IEC TR 61328:2024 provides information for the selection of conductor stringing, earthing and bonding equipment used for the installation of bare and insulated overhead distribution conductors, as well as overhead transmission conductors and overhead earth wires.
Procedures are given for installation and maintenance of distribution and transmission conductors. A discussion of electric hazards is provided as well as relevant earthing and bonding techniques.
Base documents:
Replaces: IEC TR 61328:2017
IEC 60947-4-2:2020/AMD1:2024
Amendment 1 - Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - Semiconductor motor controllers, starters and soft-starters
Scope: Amendment to IEC 60947-4-2:2020
Base documents:
IEC 60947-4-2:2020+AMD1:2024 CSV
Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - Semiconductor motor controllers, starters and soft-starters
Scope: IEC 60947-4-2:2020+AMD1:2024 CSV applies to semiconductor motor controllers, starters and soft-starters which can include a series mechanical switching device, intended to be connected to circuits the rated voltage of which does not exceed 1 000 V AC. This fourth edition cancels and replaces the third edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- scope exclusions;
- editorial correction of notes and hanging paragraphs;
- reference to IEC 62683-1;
- safety aspects related to:
- general aspects;
- limited energy circuits;
- electronic circuits;
- mention of dedicated wiring accessories;
- power consumption measurement;
- alignment to IEC 60947-1:2020.
Base documents:
IEC 60092-378:2024
Electrical installations in ships - Part 378: Optical fiber cables
Scope: IEC 60092-378:2024 is applicable to shipboard and offshore optical fibre cables, intended for fixed installations.
Cables designed to maintain functional integrity during fire given in 6.1 and to be installed in explosive atmospheres given in 6.2 are included.
The various types of optical fibre cables are given in Clause 6. The constructional requirements and test methods are aligned with those indicated in IEC 60092‑350, unless otherwise specified in this document.
Base documents:
IEC 60598-1:2024
Luminaires - Part 1: General requirements and tests
Scope: IEC 60598-1:2024 specifies general safety requirements for luminaires, incorporating electric light sources for operation from supply voltages up to 1 000 V. Requirements for semi-luminaires are included in this document.
This tenth edition cancels and replaces the ninth edition published in 2020. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) new structure to comply with the ISO/IEC Directives, Part 2;
b) addition of a new Annex V for comparison with the previous edition;
c) revision of 7.32 for SPDs and for SPCs;
d) the terms "live part" and "active part" were reviewed and aligned with the definitions of "live part" and "hazardous live part" given in IEC 60050-195;
e) revision of 7.14.2 for conductor mechanical stress;
f) revision of 14.5.2, Item 4 to include controlgear;
g) revision of 9.2.1 (Earthing) with the deletion of the word "permanently";
h) revision of Annex N: earth continuity test time;
i) revision of 7.11.4; 7.14.1; Table 22 (14.4.3): Introduction of requirements for suspension by magnets;
j) addition of a new Annex W for luminaires using batteries;
k) clarification of Clause 6 for marking requirements for nature of supply;
l) addition of a new Subclause 7.31.5: Additional requirements for luminaires using controllable controlgear providing SELV output(s);
m) revision of 6.4.16: Information to be provided for luminaire having protective earth current > 10 mA;
n) revision of 6.3.23; 6.4.18; 6.4.24; 7.30 and 10.2.1 for serviceable, non-user serviceable and non-serviceable components;
o) revision of Annex D: Draught-proof enclosure;
p) revision of 8.2.1 and 13.2.1: Inconsistencies in the inclusion of the limits of voltage ranges;
q) revision of 9.2.10 for looping-in;
r) Revision of Clause 2 and 7.8: update of the reference to IEC 61058-1-1, IEC 61058-1-2 and IEC 61058­2­1. Update of temperature limits in Table 21 (14.4.3) for luminaires incorporating switches according to IEC 60669-1 or IEC 60669-2-1;
s) revision of 6.3.22 and 7.24 for photobiological safety;
t) addition of a new Subclause 6.3.27 for marking of mains socket outlet moved from information requirements.
Base documents:
EVS-EN IEC 63044-5-3:2019/A1:2024
Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) - Part 5-3: EMC requirements for HBES/BACS used in industrial environments
Scope: Amendment to EN IEC 63044-5-3:2019
Base documents: IEC 63044-5-3:2017/AMD1:2022; EN IEC 63044-5-3:2019/A1:2024
IEC 63522-8:2024
Electrical relays - Tests and measurements - Part 8: Timing
Scope: IEC 63522-8:2024, when required by the detail specification, is used for testing all kinds of relays. This test can also be used for similar devices when specified in a detail specification.
This document defines a standard test method to ensure that the relay times are within the specified limits.
Base documents:
Replaced standards
EVS-IEC 60050-826:2006
International Electrotechnical Vocabulary (IEV) - Part 826: Electrical installations
Scope: Part 828 of IEC 60050 deals with electrical installations such as those of residential, industrial or commercial premises. It doesn't cover systems for distribution of energy to the public or power generation and transmission for such systems.
Base documents: IEC 60050-826:2004
EVS-EN 60034-12:2017
Rotating electrical machines - Part 12: Starting performance of single-speed three-phase cage induction motors
Scope: This part of IEC 60034 specifies the parameters for eight designs of starting performance of single-speed three-phase 50 Hz or 60 Hz cage induction motors in accordance with
IEC 60034-1 that:
– have a rated voltage up to 1 000 V;
– are intended for direct-on-line or star-delta starting;
– are rated on the basis of duty type S1;
– are constructed to any degree of protection and explosion protection.
This document also applies to dual voltage motors provided that the flux saturation level is the same for both voltages.
The values of torque, apparent power and current given in this document are limiting values (that is, minimum or maximum without tolerance).
Base documents: IEC 60034-12:2016; EN 60034-12:2017
EVS-EN 62271-211:2014/AC:2015
High-voltage switchgear and controlgear - Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
Scope: Corrigendum for EN 62271-211:2014
Base documents: EN 62271-211:2014/AC:2015
IEC TR 61328:2017
Live working - Guidelines for the installation of transmission and distribution line conductors and earth wires - Stringing equipment and accessory items
Scope: IEC TR 61328:2017(E) provides recommendations for the selection and testing where necessary of conductor stringing equipment and accessory items used for the installation of bare and insulated overhead distribution conductors, bare overhead transmission conductors and overhead earth wires. This third edition cancels and replaces the second edition published in 2003 and IEC TR 61911:2003. It incorporates some technical changes to update equipment work methods and procedures, bringing them in line with the state of the art.
Base documents:
Replaced: IEC TR 61328:2024
EVS-EN 60034-11:2004
Rotating electrical machines Part 11: Thermal protection
Scope: Specifies requirements relating to the use of thermal protectors and thermal detectors incorporated into the stator windings or placed in other suitable positions in induction machines in order to protect them against serious damage due to thermal overloads. Applies to machines manufactured in accordance with IEC 60034-12.
Base documents: IEC 60034-11:2004; EN 60034-11:2004
IEC 60598-1:2020
Luminaires - Part 1: General requirements and tests
Scope: IEC 60598-1:2020 specifies general requirements for luminaires, incorporating electric light sources for operation from supply voltages up to 1 000 V. The requirements and related tests of this document cover: classification, marking, mechanical construction, electrical construction and photobiological safety. This ninth edition cancels and replaces the eighth edition published in 2014 and Amendment 1:2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Revision of Clause 4.30, Fixing cover live parts of non-user replaceable light source;
- Subclause 4.24.2, Blue Light Hazard: removal of Risk Group 0;
- Subclause 5.2.16: additional requirements for AC mains appliance inlets related to IEC 61984;
- Addition of Subclause 3.3.25, UV protection of cable;
- Addition of Clause 4.34, Inclusion of EMF safety requirements (IEC 62493);
- Revision of the requirements for functional earth and protective earth;
- Addition of Clause 4.35, Protection against fast rotating parts;
- Revision of Clause 3.2, Rated voltage marking;
- Revision of Subclause 5.2.10, Cord anchorage;
- Revision of Annex G for touch current and protective conductor current test set-up;
- Addition of requirements for constant light output function and programmable current output;
- Revision of Subclause 8.2.3 c), touch voltage limits for interrupted DC voltage;
- Introduction of PELV;
- Introduction of Ethernet power supply connection for luminaires (PoE);
- Section 9, Introduction of IPX9;
- Addition of Subclause 3.3.26 for wall mounted luminaires;
- Revision of Annex D introducing alternative thermal tests for luminaires with ta marking higher than 25°C;
- Revision of Table 10.3 and Subclause 3.3.19 for protective conductor current limits;
- Track-mounted luminaires: cross reference to Annex A of IEC 60570:2003/AMD2:2019;
- Revision of Subclause 10.2.2, alternative DC electric strength test;
- Revision of Annex D for recessed luminaires;
- Subclause 4.12.5: revision of Table 4.2 for torque test on metal glands;
- Revision of use of bridging capacitors in luminaires;
- Revision of electrical connection to class III plugs.
Base documents:
Replaced: IEC 60598-1:2024
IEC 60598-1:2020/ISH1:2023
Interpretation Sheet 1 - Luminaires - Part 1: General requirements and tests
Scope: Interpretation Sheet to IEC 60598-1:2020
Base documents:
Replaced: IEC 60598-1:2024
EVS-EN 62271-211:2014/AC:2017
High-voltage switchgear and controlgear - Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
Scope: Corrigendum 2 for EN 62271-211:2014
Base documents: IEC 62271-211:2014/COR2:2017; EN 62271-211:2014/AC:2017-09
EVS-EN 60034-9:2005
Rotating electrical machines - Part 9: Noise limits
Scope: Specifies test methods for the determination of sound power level of rotating electrical machines. Provides maximum A-weighted sound power levels for factory acceptance testing of rotating electrical machines. To be used in conjunction with IEC 60034-1, IEC 60034-5 and IEC 60034-6.This consolidated version consists of the fourth edition (2003), and its amendment 1 (2007). Therefore, no need to order amendment in addition to this publication.
Base documents: IEC 60034-9:2003; EN 60034-9:2005
EVS-EN 60034-9:2005/A1:2007
Rotating electrical machines - Part 9: Noise limits
Scope: Specifies maximum permissible A-weighted sound power levels for rotating electrical machines complying with IEC 34-1, with methods of cooling according to IEC 34-6 and degrees of protection according to IEC 34-5.
Base documents: IEC 60034-9:2003/A1:2007; EN 60034-9:2005/A1:2007
EVS-EN 62271-211:2014
High-voltage switchgear and controlgear - Part 211: Direct connection between power transformers and gas-insulated metal-enclosed switchgear for rated voltages above 52 kV
Scope: IEC 62271-211:2014 is applicable to single and three phase direct connections between gas-insulated metal-enclosed switchgear (GIS) for rated voltages above 52 kV and transformer arrangements to establish electrical and mechanical interchange ability and to determine the limits of supply of for the transformer connection.   This first edition cancels and replaces the first edition of IEC TR 61639:1996 and constitutes a technical revision.  This edition includes the following significant technical changes with respect to the previous edition:  a) transfer from technical report to international standard;  b) the minimum voltage rating was changed from 72,5 kV to above 52 kV;  c) update of normative references;  d) definition of insulated junction including limit of supply;  e) definition of dielectric test of gas-insulated metal-enclosed switchgear for transformer connection in a three phase enclosure;  f) addition of interface tolerances at transformer side;  g) addition of transformer tolerances in service;  h) addition of exceptional loads for bushings and flanges;  i) consideration of oil- and gas-insulated transformers;  j) inclusion of three-phase enclosed direct connections.
Base documents: IEC 62271-211:2014; EN 62271-211:2014
Drafts