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EVS-EN IEC 62590-2-2:2026
Railway applications - Electronic power converters for fixed installations - Part 2-2: DC Traction applications - Controlled converters
Scope: This part of IEC 62590 describes functions and working principles, specifies requirements, interfaces, and test methods for controlled converters for DC electric traction power supply systems:
– AC/DC converters:
• rectifiers,
• inverters,
• combinations.
– DC converters.
The purpose of the converters can be a power connection to other power networks or energy storages.
The common characteristic of this equipment is the possibility to influence the power flow in the DC electric traction power supply system. The converters can be:
– line-commutated;
– self-commutated.
This document applies to fixed installations of the following electric traction systems:
– railway networks,
– metropolitan transport networks including metros, tramways, trolleybuses and fully automated transport systems, magnetic levitated transport systems, and electric road systems.
– AC/DC converters:
• rectifiers,
• inverters,
• combinations.
– DC converters.
The purpose of the converters can be a power connection to other power networks or energy storages.
The common characteristic of this equipment is the possibility to influence the power flow in the DC electric traction power supply system. The converters can be:
– line-commutated;
– self-commutated.
This document applies to fixed installations of the following electric traction systems:
– railway networks,
– metropolitan transport networks including metros, tramways, trolleybuses and fully automated transport systems, magnetic levitated transport systems, and electric road systems.
Base documents: IEC 62590-2-2:2026; EN IEC 62590-2-2:2026
EVS-EN IEC 60127-7:2026
Miniature fuses - Part 7: Miniature fuse-links for special application
Scope: This part of IEC 60127 covers requirements for miniature fuse-links for special applications.
This part of IEC 60127 is applicable to fuse-links with a rated voltage not exceeding 1 000 V, a rated current not exceeding 125 A and a rated breaking capacity not exceeding 50 kA.
NOTE Nominal currents above 20 A are intended for protection of low power electric devices at low voltage and not for energy distribution.
It does not apply to fuses completely covered by the subsequent parts of IEC 60269-1.
It does not apply to miniature fuse-links for appliances intended to be used under special conditions, such as in corrosive or explosive atmospheres.
This part of IEC 60127 applies in addition to the requirements of IEC 60127-1:2023.
Miniature fuse-links for special applications are not intended to be replaced by the end-user of an electrical / electronic appliance.
The object of this part of IEC 60127 is to establish uniform test methods for miniature fuse-links for special applications, so as to allow verification of the values (for example melting time and breaking capacity values) specified by the manufacturer.
This part of IEC 60127 is applicable to fuse-links with a rated voltage not exceeding 1 000 V, a rated current not exceeding 125 A and a rated breaking capacity not exceeding 50 kA.
NOTE Nominal currents above 20 A are intended for protection of low power electric devices at low voltage and not for energy distribution.
It does not apply to fuses completely covered by the subsequent parts of IEC 60269-1.
It does not apply to miniature fuse-links for appliances intended to be used under special conditions, such as in corrosive or explosive atmospheres.
This part of IEC 60127 applies in addition to the requirements of IEC 60127-1:2023.
Miniature fuse-links for special applications are not intended to be replaced by the end-user of an electrical / electronic appliance.
The object of this part of IEC 60127 is to establish uniform test methods for miniature fuse-links for special applications, so as to allow verification of the values (for example melting time and breaking capacity values) specified by the manufacturer.
Base documents: IEC 60127-7:2026; EN IEC 60127-7:2026
Replaces: EVS-EN 60127-7:2016
EVS-EN IEC 63552:2026
Switching device for islanding (SDFI)
Scope: This document applies to switching device for islanding, hereafter referred to as SDFI, for household and similar uses, primarily intended to be used for energy efficiency (EE) purposes with local production or local storage of energy, or with both.
SDFI are intended to be installed in low voltage prosumer electrical installations (PEI) able to operate in island mode as defined in IEC 60364-8-82, so called islandable PEI.
SDFI are used to disconnect the PEI from the grid to allow operating the PEI in island mode and further reconnect the PEI to the grid.
They are intended to be used in islandable PEI which operate:
– in connected mode (direct feeding mode or reverse feeding mode), and
– in island mode,
as defined in IEC 60364-8-82.
NOTE 1 See definitions 3.10 and 3.13 of island mode and for connected mode respectively.
NOTE 2 Switching of a PEI to island mode can be subject to local regulations (grid codes) or to specific agreement with system operators. Reverse feeding is also usually subject to local regulations (grid codes).
SDFI are part of the electrical installation.
This document applies to SDFI for operation in AC single or multiphase main circuits with rated voltages not exceeding 440 V AC, frequencies of 50 Hz, 60 Hz or 50/60 Hz. They are intended to be used in installations with prospective short circuit currents not exceeding 25 000 A.
NOTE 3 DC operations are not covered by this edition and are kept under consideration for a future revision of this
document.
The SDFI is composed at least of one switching unit (SU) and a control unit (CU) to monitor its switching operations from grid connected to island mode and reverse wise.
The SDFI can be provided with a communication interface for exchange with external systems such as the Customer Energy Manager (CEM) defined in IEC 63402 series.
According to the intended use, the SDFI can be interlocked with a system referencing conductor switching device (SRCSD) according to IEC 63445 or it can be integrated with a SRCSD in a single unit.
NOTE 4 According to its intended use, the SDFI can also be used as an interface switch with the interface protection
(integrated or not). See 3.19 and 3.20.
SDFI are intended for use in circuits where protection against electrical shock and overcurrent is provided according to installation rules for low voltage electrical installations, unless the SDFI already contains such protective function. SDFI are not requested to provide isolation function and overcurrent protection according to IEC 60364-8-82. However, the isolation function can be provided by a SDFI fulfilling the requirements of the relevant product standards.
SDFI are installed by instructed persons (IEC 60050-195:2021, 195-04-02) or skilled persons (IEC 60050-195:2021, 195-04-01). They are intended to be used by ordinary persons (IEC 60005-195:2021, 195-04-03) and do not require maintenance.
It is important to note that the main overcurrent protective device of installations cannot be used as a SDFI in single dwellings or similar islandable PEI (see Clause D.5 of IEC 60364-8-82:2022)
SDFI are intended to be installed in low voltage prosumer electrical installations (PEI) able to operate in island mode as defined in IEC 60364-8-82, so called islandable PEI.
SDFI are used to disconnect the PEI from the grid to allow operating the PEI in island mode and further reconnect the PEI to the grid.
They are intended to be used in islandable PEI which operate:
– in connected mode (direct feeding mode or reverse feeding mode), and
– in island mode,
as defined in IEC 60364-8-82.
NOTE 1 See definitions 3.10 and 3.13 of island mode and for connected mode respectively.
NOTE 2 Switching of a PEI to island mode can be subject to local regulations (grid codes) or to specific agreement with system operators. Reverse feeding is also usually subject to local regulations (grid codes).
SDFI are part of the electrical installation.
This document applies to SDFI for operation in AC single or multiphase main circuits with rated voltages not exceeding 440 V AC, frequencies of 50 Hz, 60 Hz or 50/60 Hz. They are intended to be used in installations with prospective short circuit currents not exceeding 25 000 A.
NOTE 3 DC operations are not covered by this edition and are kept under consideration for a future revision of this
document.
The SDFI is composed at least of one switching unit (SU) and a control unit (CU) to monitor its switching operations from grid connected to island mode and reverse wise.
The SDFI can be provided with a communication interface for exchange with external systems such as the Customer Energy Manager (CEM) defined in IEC 63402 series.
According to the intended use, the SDFI can be interlocked with a system referencing conductor switching device (SRCSD) according to IEC 63445 or it can be integrated with a SRCSD in a single unit.
NOTE 4 According to its intended use, the SDFI can also be used as an interface switch with the interface protection
(integrated or not). See 3.19 and 3.20.
SDFI are intended for use in circuits where protection against electrical shock and overcurrent is provided according to installation rules for low voltage electrical installations, unless the SDFI already contains such protective function. SDFI are not requested to provide isolation function and overcurrent protection according to IEC 60364-8-82. However, the isolation function can be provided by a SDFI fulfilling the requirements of the relevant product standards.
SDFI are installed by instructed persons (IEC 60050-195:2021, 195-04-02) or skilled persons (IEC 60050-195:2021, 195-04-01). They are intended to be used by ordinary persons (IEC 60005-195:2021, 195-04-03) and do not require maintenance.
It is important to note that the main overcurrent protective device of installations cannot be used as a SDFI in single dwellings or similar islandable PEI (see Clause D.5 of IEC 60364-8-82:2022)
Base documents: IEC 63552:2026; EN IEC 63552:2026
EVS-EN IEC 62561-8:2026
Lightning protection system components (LPSC) - Part 8: Requirements for components for electrically insulated LPS
Scope: This document specifies the requirements and tests for components used for electrically insulated LPS. These components, which can reduce the separation distance, are as follows:
– insulating stand-offs, used in conjunction with an air-termination system and downconductors with the aim of maintaining the proper separation distance;
– insulating down-conductors, including their specific fasteners.
Testing of insulating stand-offs and insulating down-conductor components for an explosive atmosphere is not covered by this document.
– insulating stand-offs, used in conjunction with an air-termination system and downconductors with the aim of maintaining the proper separation distance;
– insulating down-conductors, including their specific fasteners.
Testing of insulating stand-offs and insulating down-conductor components for an explosive atmosphere is not covered by this document.
Base documents: IEC 62561-8:2026; EN IEC 62561-8:2026
IEC TR 63631-1:2026
Decentralized Multiple Energy Systems - Part 1: General
Scope: IEC TR 63631-1:2026 presents general features, typical cases, and key technologies related to DMES. It analyses the existing standards and identifies the gaps and needs for DMES development from the perspectives of the equipment layer, the communication layer, the information layer, the management system layer, and the application layer. This document also provides information on future standardization needs in the area.
Base documents:
IEC 62196-3:2026/COR1:2026
Corrigendum 1 - Plugs, socket-outlets, vehicle connectors and vehicle inlets - Conductive charging of electric vehicles - Part 3: Dimensional compatibility requirements for DC and AC/DC pin and contact-tube vehicle couplers
Scope: Corrigendum for IEC 62196-3:2026
Base documents:
EVS-EN IEC 61936-1:2021/AC2:2026
Power installations exceeding 1 kV AC and 1,5 kV DC - Part 1: AC
Scope: Corrigendum to EVS-EN IEC 61936-1:2021.
Base documents:
IEC 60317-0-1:2013/AMD2:2026
Amendment 2 - Specifications for particular types of winding wires - Part 0-1: General requirements - Enamelled round copper wire
Scope:
Base documents:
IEC 60947-5-3:2026
Low-voltage switchgear and controlgear - Part 5-3: Control circuit devices and switching elements - Requirements for proximity devices with defined behaviour under fault conditions (PDDB)
Scope: IEC 60947-5-3:2026 provides additional requirements to those given in IEC 60947-5-2 and IEC 60947-5-1:2024, Annex D (reed contact magnetic switches). It addresses the fault performance aspects of proximity devices with a defined behaviour under fault conditions (PDDB). It does not address any other characteristics that can be required for specific applications.
This document does not apply to protective equipment to directly detect the presence of persons, that are covered by the IEC 61496 series or IEC TS 62998 series.
NOTE 1 A PDDB device can be used to detect indirectly the presence of a person, for example by detecting the position of a platform on which the operator stands (example, garbage trucks).
This document does not specify requirements for the analogue output of PDDB, if any.
This document does not deal with any specific requirements on acoustic noise as the noise emission of proximity devices is not considered to be a relevant hazard.
A PDDB product is intended to be used as sensing subsystem of a safety related control system according to IEC 62061 or ISO 13849-1. Depending on construction principles and complexity, this document is based on product development of the IEC 61508 series to meet the product specific requirements of one or more of the following:
– IEC 61508 series;
– IEC 62061;
– ISO 13849 series.
NOTE 2 The Functional safety device type classification regarding functional safety correlates with IEC 62683-2-3.
This document includes requirements for PDDB when designed for use as part of an interlocking device according to ISO 14119.
This document does not consider aspects of:
– software updates and self-evolving behaviour;
– explosive atmospheres.
This third edition cancels and replaces the second edition published in 2013. This edition constitutes a technical revision.
This third edition includes the following significant technical changes with respect to the previous edition:
a) Update of the scope, refined fault performance aspects and relation to standards of functional safety.
b) The ‘safe state’ is generally determined as ‘OFF-state’ (see 3.1.8).
c) Update of EMC requirements in 8.2.6 with references to IEC 60947-5-2:2019 for acceptance criteria A, B and C and requirements of Table 17 for acceptance criterion DS.
d) Interface types for binary interfaces are introduced (see 4.6.2 and Annex B).
e) Functional safety device types according to ISO 13849-1:2023 Annex O (see 4.9).
f) Interlocking device type and coding level according to ISO 14119 are adapted (see 4.10 and 4.11).
g) The operating modes target present (4.12.2) and target absent (4.12.3) are introduced.
h) The ‘switching distance’ replaces the terms ‘release’ and ‘operating’. The behaviour of the PDDB is described according to the operating mode (4.12).
i) The context and verification of the switching distances are considered according to ISO/IEC Guide 98-3:2008 (GUM) and IEC TR 63649 (see 8.2.1.3 and 9.4.2).
j) Requirements for electrical equipment class III are refined.
k) The risk time is replaced with the safety response time (3.1.11).
l) Annex A gives a new example of safety related control system.
m) The test sequences (see 9.3.1) are updated for the specific behaviour of a PDDB.
This document does not apply to protective equipment to directly detect the presence of persons, that are covered by the IEC 61496 series or IEC TS 62998 series.
NOTE 1 A PDDB device can be used to detect indirectly the presence of a person, for example by detecting the position of a platform on which the operator stands (example, garbage trucks).
This document does not specify requirements for the analogue output of PDDB, if any.
This document does not deal with any specific requirements on acoustic noise as the noise emission of proximity devices is not considered to be a relevant hazard.
A PDDB product is intended to be used as sensing subsystem of a safety related control system according to IEC 62061 or ISO 13849-1. Depending on construction principles and complexity, this document is based on product development of the IEC 61508 series to meet the product specific requirements of one or more of the following:
– IEC 61508 series;
– IEC 62061;
– ISO 13849 series.
NOTE 2 The Functional safety device type classification regarding functional safety correlates with IEC 62683-2-3.
This document includes requirements for PDDB when designed for use as part of an interlocking device according to ISO 14119.
This document does not consider aspects of:
– software updates and self-evolving behaviour;
– explosive atmospheres.
This third edition cancels and replaces the second edition published in 2013. This edition constitutes a technical revision.
This third edition includes the following significant technical changes with respect to the previous edition:
a) Update of the scope, refined fault performance aspects and relation to standards of functional safety.
b) The ‘safe state’ is generally determined as ‘OFF-state’ (see 3.1.8).
c) Update of EMC requirements in 8.2.6 with references to IEC 60947-5-2:2019 for acceptance criteria A, B and C and requirements of Table 17 for acceptance criterion DS.
d) Interface types for binary interfaces are introduced (see 4.6.2 and Annex B).
e) Functional safety device types according to ISO 13849-1:2023 Annex O (see 4.9).
f) Interlocking device type and coding level according to ISO 14119 are adapted (see 4.10 and 4.11).
g) The operating modes target present (4.12.2) and target absent (4.12.3) are introduced.
h) The ‘switching distance’ replaces the terms ‘release’ and ‘operating’. The behaviour of the PDDB is described according to the operating mode (4.12).
i) The context and verification of the switching distances are considered according to ISO/IEC Guide 98-3:2008 (GUM) and IEC TR 63649 (see 8.2.1.3 and 9.4.2).
j) Requirements for electrical equipment class III are refined.
k) The risk time is replaced with the safety response time (3.1.11).
l) Annex A gives a new example of safety related control system.
m) The test sequences (see 9.3.1) are updated for the specific behaviour of a PDDB.
Base documents:
Replaces: IEC 60947-5-3:2013
IEC 63522-19:2026
Electrical relays - Tests and measurements - Part 19: Electrical endurance
Scope: IEC 63522-19:2026 This part defines a test method to measure electrical endurance of electrical relays and provides the appropriate severities and conditions for measurements designed to assess the ability of DUTs to perform under expected conditions of transportation, storage and all aspects of operational use.
Base documents:
IEC TS 61641:2026
Low-voltage switchgear and controlgear assemblies - Internal arc-fault protection of low-voltage switchgear and controlgear assemblies in accordance with the IEC 61439 series
Scope: IEC TS 61641:2026 identifies methods used to verify the ability of the assembly:
– to limit the risk of injury to personnel during an internal arc-fault;
– to limit the damage to an acceptable level as a result of an internal arc-fault;
– to improve the power availability following an internal arc-fault.
This document takes into consideration:
– the effects of the internal overpressure acting on covers, doors, etc.;
– the thermal effects of the internal arc-fault or its roots on the enclosures and of ejected hot gases and glowing particles.
– the correct function of the IAMS within the assembly;
– the prevention of unintended operation of the IAMS within the assembly, for example caused by switching arcs;
– the functioning behaviour of the IAMS immediately after the assembly is energized.
This document describes different methods to assess the performance of an assembly or zones of an assembly in respect of arcing in air due to an internal failure:
– with "passive" arc-fault protection (provided by mechanical construction, e.g. suitable door locks, hinges, pressure relief devices, barriers);
NOTE 1 This approach corresponds to the method according to IEC TR 61641:2014.
– with "active" arc-fault protection (with the integration of IAMS);
NOTE 2 This approach corresponds to the method according to IEC TS 63107:2020.
– with the use of an arc ignition protected zone (to make the ignition of an arc-fault an extremely remote possibility).
NOTE 3 This approach corresponds to the method according to IEC TR 61641:2014.
IAMS consist of internal arc-fault control devices (IACD), e.g. optical-based IACD's in accordance with IEC 60947-9-2 and internal arc-fault reduction devices (IARD), e.g. arc quenching devices (AQDs) in accordance with IEC 60947-9-1 and short-circuit protection devices SCPD's in accordance with IEC 60947-2 (see Figure EE.1). IAMS can be provided by a combined-type device according to IEC 60947-9-2.
IEC 60364-4-42:2024 (Clause 427) provides guidance on the need for internal arc-fault protection.
This document does not supersede any individual product standard. Individual devices are required to comply with their relevant standard.
This document does not apply to integration of arc fault detection devices (AFDD) according to IEC 62606.
Informative Annex AA gives guidance for the user (see IEC 61439-1:2020, 3.11) on internal arc-fault mitigation.
Informative Annex BB gives guidance for the user (see IEC 61439-1:2020, 3.11) of assemblies with "active" arc-fault protection (with the integration of IAMS).
Informative Annex CC gives guidance for the original manufacturer of an assembly when incorporating an integrated IAMS.
This document does not consider other effects which can constitute a risk, such as emission of toxic gases, loud noises and/or intense light. Furthermore, this document does not consider conditions during maintenance work and the personal protective equipment used.
This edition cancels and replaces IEC TR 61641:2014 and IEC TS 63107:2020. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Introduction of the term "arcing class zone", using the term "arcing classes" from the previous document IEC TR 61641:2014.
b) Structured using of the terms "zone" and "area". "Area" is used to describe the place of installation and the accessibility of the assembly (macro-environment). "Zone" is used in this document to describe a defined space within the assembly (micro-environment).
c) Assembly protection is classified into two levels.
– to limit the risk of injury to personnel during an internal arc-fault;
– to limit the damage to an acceptable level as a result of an internal arc-fault;
– to improve the power availability following an internal arc-fault.
This document takes into consideration:
– the effects of the internal overpressure acting on covers, doors, etc.;
– the thermal effects of the internal arc-fault or its roots on the enclosures and of ejected hot gases and glowing particles.
– the correct function of the IAMS within the assembly;
– the prevention of unintended operation of the IAMS within the assembly, for example caused by switching arcs;
– the functioning behaviour of the IAMS immediately after the assembly is energized.
This document describes different methods to assess the performance of an assembly or zones of an assembly in respect of arcing in air due to an internal failure:
– with "passive" arc-fault protection (provided by mechanical construction, e.g. suitable door locks, hinges, pressure relief devices, barriers);
NOTE 1 This approach corresponds to the method according to IEC TR 61641:2014.
– with "active" arc-fault protection (with the integration of IAMS);
NOTE 2 This approach corresponds to the method according to IEC TS 63107:2020.
– with the use of an arc ignition protected zone (to make the ignition of an arc-fault an extremely remote possibility).
NOTE 3 This approach corresponds to the method according to IEC TR 61641:2014.
IAMS consist of internal arc-fault control devices (IACD), e.g. optical-based IACD's in accordance with IEC 60947-9-2 and internal arc-fault reduction devices (IARD), e.g. arc quenching devices (AQDs) in accordance with IEC 60947-9-1 and short-circuit protection devices SCPD's in accordance with IEC 60947-2 (see Figure EE.1). IAMS can be provided by a combined-type device according to IEC 60947-9-2.
IEC 60364-4-42:2024 (Clause 427) provides guidance on the need for internal arc-fault protection.
This document does not supersede any individual product standard. Individual devices are required to comply with their relevant standard.
This document does not apply to integration of arc fault detection devices (AFDD) according to IEC 62606.
Informative Annex AA gives guidance for the user (see IEC 61439-1:2020, 3.11) on internal arc-fault mitigation.
Informative Annex BB gives guidance for the user (see IEC 61439-1:2020, 3.11) of assemblies with "active" arc-fault protection (with the integration of IAMS).
Informative Annex CC gives guidance for the original manufacturer of an assembly when incorporating an integrated IAMS.
This document does not consider other effects which can constitute a risk, such as emission of toxic gases, loud noises and/or intense light. Furthermore, this document does not consider conditions during maintenance work and the personal protective equipment used.
This edition cancels and replaces IEC TR 61641:2014 and IEC TS 63107:2020. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Introduction of the term "arcing class zone", using the term "arcing classes" from the previous document IEC TR 61641:2014.
b) Structured using of the terms "zone" and "area". "Area" is used to describe the place of installation and the accessibility of the assembly (macro-environment). "Zone" is used in this document to describe a defined space within the assembly (micro-environment).
c) Assembly protection is classified into two levels.
Base documents:
IEC 60623:2026
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Vented nickel-cadmium prismatic rechargeable cells and batteries for use in industrial applications
Scope: IEC 60623:2026 specifies marking, designation, dimensions, tests and requirements for vented nickel-cadmium prismatic secondary single cells and battery systems made of them for use in industrial applications.
This sixth edition cancels and replaces the fifth edition published in 2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) added a test for internal DC resistance;
b) added a subclause for pulse power calculation;
c) added a test for constant power measurement;
d) added a subclause on the determination of durability parameters.
This sixth edition cancels and replaces the fifth edition published in 2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) added a test for internal DC resistance;
b) added a subclause for pulse power calculation;
c) added a test for constant power measurement;
d) added a subclause on the determination of durability parameters.
Base documents:
Replaces: IEC 60623:2017
IEC 60309-2:2021/COR1:2026
Corrigendum 1 - Plugs, fixed or portable socket-outlets and appliance inlets for industrial purposes - Part 2: Dimensional compatibility requirements for pin and contact-tube accessories
Scope: Corrigendum for IEC 60309-2:2021
Base documents:
IEC 60623:2026 CMV
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Vented nickel-cadmium prismatic rechargeable cells and batteries for use in industrial applications
Scope: IEC 60623:2026 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 60623:2026 edition 6.0 and the previous IEC 60623:2017 edition 5.0. Furthermore, comments from IEC SC 21A experts are provided to explain the reasons of the most relevant changes, or to clarify any part of the content.
IEC 60623:2026 specifies marking, designation, dimensions, tests and requirements for vented nickel-cadmium prismatic secondary single cells and battery systems made of them for use in industrial applications.
This sixth edition cancels and replaces the fifth edition published in 2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) added a test for internal DC resistance;
b) added a subclause for pulse power calculation;
c) added a test for constant power measurement;
d) added a subclause on the determination of durability parameters.
IEC 60623:2026 specifies marking, designation, dimensions, tests and requirements for vented nickel-cadmium prismatic secondary single cells and battery systems made of them for use in industrial applications.
This sixth edition cancels and replaces the fifth edition published in 2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) added a test for internal DC resistance;
b) added a subclause for pulse power calculation;
c) added a test for constant power measurement;
d) added a subclause on the determination of durability parameters.
Base documents:
IEC 60851-5:2026
Winding wires - Test methods - Part 5: Electrical properties
Scope: IEC 60851-5:2026 specifies the following tests:
Test 5: Electrical resistance;
Test 13: Breakdown voltage;
Test 14: Continuity of insulation;
Test 19: Dielectric dissipation factor;
Test 23: Pin hole.
For definitions and general notes on methods of test, Clause 3 of IEC 60851-1:2021 applies. This IEC 60851-5:2026 also specifies methods for determining the dissipation factor of enamelled winding wire, provided in Annex A. This fifth edition cancels and replaces the fourth edition published in 2008, Amendment 1:2011 and Amendment 2:2019. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Subclauses 5.3.1 and 5.3.2 modified to expand the conductor size range for the loads applied during cylinder method testing for dielectric breakdown voltage of enameled wires and for fully insulated wires.
b) Addition of subclause 6.5 for inline continuity testing of rectangular wire (under consideration).
Test 5: Electrical resistance;
Test 13: Breakdown voltage;
Test 14: Continuity of insulation;
Test 19: Dielectric dissipation factor;
Test 23: Pin hole.
For definitions and general notes on methods of test, Clause 3 of IEC 60851-1:2021 applies. This IEC 60851-5:2026 also specifies methods for determining the dissipation factor of enamelled winding wire, provided in Annex A. This fifth edition cancels and replaces the fourth edition published in 2008, Amendment 1:2011 and Amendment 2:2019. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Subclauses 5.3.1 and 5.3.2 modified to expand the conductor size range for the loads applied during cylinder method testing for dielectric breakdown voltage of enameled wires and for fully insulated wires.
b) Addition of subclause 6.5 for inline continuity testing of rectangular wire (under consideration).
Base documents:
IEC 63402-2-2:2026
Energy efficiency - Customer energy management system - Part 2-2: Data model and messaging - Interface between the customer energy manager and resource managers
Scope: IEC 63402-2-2:2026 specifies the fundamental aspects of semantic interoperability for the S2 interface and the related data exchange between a CEM and the resource managers within the premises. It provides a technology independent set of data models and interaction patterns in order to enable applications for energy management within the premises. This document does not include:
– mappings to concrete data representations (XML, JSON and similar);
– mappings to application protocols for the message passing;
– security related aspects.
This group EE publication is primarily intended to be used as an EE standard for the products mentioned in the scope, but is also intended to be used by TCs in the preparation of publications for products which are included in the boundary mentioned in the scope of this document
– mappings to concrete data representations (XML, JSON and similar);
– mappings to application protocols for the message passing;
– security related aspects.
This group EE publication is primarily intended to be used as an EE standard for the products mentioned in the scope, but is also intended to be used by TCs in the preparation of publications for products which are included in the boundary mentioned in the scope of this document
Base documents:
IEC 60317-0-1:2013+AMD1:2019+AMD2:2026 CSV
Specifications for particular types of winding wires - Part 0-1: General requirements - Enamelled round copper wire
Scope: IEC 60317-0-1:2013+AMD1:2019+AMD2:2026 CSV specifies general requirements of enamelled round copper winding wires with or without bonding layer. The range of nominal conductor diameters is given in the relevant specification sheet. This fourth edition cancels and replaces the third edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- revision to the definition of nominal conductor dimension;
- new subclause containing general notes on winding wire, formerly a part of the scope;
- revision to elongation requirements in Table 4;
- revisions to Clause 13, Breakdown voltage, to include new requirements for intermediate wire diameters;
- revision to continuity of insulation requirements in Table 13;
- revision to the introduction of Annex A;
- revision to B.2 of Annex B;
- revision to Table C.1 of Annex C. Keywords: requirements of enamelled round copper winding wires
- revision to the definition of nominal conductor dimension;
- new subclause containing general notes on winding wire, formerly a part of the scope;
- revision to elongation requirements in Table 4;
- revisions to Clause 13, Breakdown voltage, to include new requirements for intermediate wire diameters;
- revision to continuity of insulation requirements in Table 13;
- revision to the introduction of Annex A;
- revision to B.2 of Annex B;
- revision to Table C.1 of Annex C. Keywords: requirements of enamelled round copper winding wires
Base documents:
Replaced standards
IEC 60947-5-3:2013
Low-voltage switchgear and controlgear - Part 5-3: Control circuit devices and switching elements - Requirements for proximity devices with defined behaviour under fault conditions (PDDB)
Scope: IEC 60947-5-3:2013 series provides additional requirements to those given in IEC 60947-5-2. It addresses the fault performance aspects of proximity devices with a defined behaviour under fault conditions (PDDB). It does not address any other characteristics that can be required for specific applications. This second edition replaces the first edition published in 1999 and its amendment published in 2005. It is a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) general principles of IEC 61508 series;
b) classification according to the requirements of IEC 62061;
c) classification according to ISO 13849-1.
This publication is to be read in conjunction with IEC 60947-1:2007 and IEC 60947-5-2:2007..
a) general principles of IEC 61508 series;
b) classification according to the requirements of IEC 62061;
c) classification according to ISO 13849-1.
This publication is to be read in conjunction with IEC 60947-1:2007 and IEC 60947-5-2:2007..
Base documents:
Replaced: IEC 60947-5-3:2026
IEC TR 61641:2014
Enclosed low-voltage switchgear and controlgear assemblies - Guide for testing under conditions of arcing due to internal fault
Scope: IEC TR 61641:2014 gives guidance on the method of testing of ASSEMBLIES under conditions of arcing in air due to an internal fault. The purpose of this test is to assess the ability of the ASSEMBLY to limit the risk of personal injury, damage of ASSEMBLIES and its suitability for further service as a result of an internal arcing fault. This third edition cancels and replaces the second edition published in 2008. It constitutes a technical revision. This third edition includes the following significant technical changes with respect to the previous edition:
- arcing classes to define the different forms of protection provided against arcing faults; (i) personnel protection, (ii) damage restricted to part of the ASSEMBLY, and (iii) ASSEMBLY suitable for limited further service.;
- two levels of personnel protection afforded by ASSEMBLIES under arcing fault conditions; (i) for ASSEMBLIES installed in areas where access to the ASSEMBLY is restricted to skilled persons, and (ii) for ASSEMBLIES installed in areas where the area is accessible to ordinary persons;
- option of individually insulating all live conductors to make the complete ASSEMBLY an arc ignition protected zone (referred to as an 'arc free zone' in previous editions of the Technical report);
- arc fault protection front, back and sides of an ASSEMBLY as the normal requirement;
- minimum performance requirements for arc ignition protected zone.
- arcing classes to define the different forms of protection provided against arcing faults; (i) personnel protection, (ii) damage restricted to part of the ASSEMBLY, and (iii) ASSEMBLY suitable for limited further service.;
- two levels of personnel protection afforded by ASSEMBLIES under arcing fault conditions; (i) for ASSEMBLIES installed in areas where access to the ASSEMBLY is restricted to skilled persons, and (ii) for ASSEMBLIES installed in areas where the area is accessible to ordinary persons;
- option of individually insulating all live conductors to make the complete ASSEMBLY an arc ignition protected zone (referred to as an 'arc free zone' in previous editions of the Technical report);
- arc fault protection front, back and sides of an ASSEMBLY as the normal requirement;
- minimum performance requirements for arc ignition protected zone.
Base documents:
EVS-EN 60127-7:2016
Miniature fuses - Part 7: Miniature fuse-links for special applications
Scope: IEC 60127-7:2015(E) covers requirements for miniature fuse-links for special applications. This part of IEC 60127 is applicable to fuse-links with a rated voltage not exceeding 1 000 V, a rated current not exceeding 20 A and a rated breaking capacity not exceeding 50 kA. It does not apply to fuses completely covered by the subsequent parts of IEC 60269-1. It does not apply to miniature fuse-links for appliances intended to be used under special conditions, such as in corrosive or explosive atmospheres. This part of IEC 60127 applies in addition to the requirements of IEC 60127-1. Miniature fuse-links for special applications are not intended to be replaced by the end-user of an electrical/electronic appliance. The object of this part of IEC 60127 is to establish uniform test methods for miniature fuse-links for special applications, so as to allow verification of the values (for example melting time and breaking capacity values) specified by the manufacturer. This second edition cancels and replaces the first edition published in 2013. This edition includes the following significant technical changes with respect to the previous edition:
- defining a test board for surface mount fuse-links, Figure 2;
- defining test schedules for homogenous series.
- defining a test board for surface mount fuse-links, Figure 2;
- defining test schedules for homogenous series.
Base documents: IEC 60127-7:2015; EN 60127-7:2016
Replaced: EVS-EN IEC 60127-7:2026
IEC 60623:2017
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Vented nickel-cadmium prismatic rechargeable single cells
Scope: IEC 60623 specifies marking, designation, dimensions, tests and requirements for vented nickel-cadmium prismatic secondary single cells.
NOTE In this context, "prismatic" refers to cells having rectangular sides and base.
When there exists an IEC standard specifying test conditions and requirements for cells used in special applications and which is in conflict with this document, the former takes precedence.
This edition includes the following significant technical changes with respect to the previous edition:
- optional characterization of cells designed for performances at very low and/or very high temperature;
- optional characterization of cells tested with CCCV charge;
- optional characterization of cells designed for rapid charge;
- optional characterization of cells designed for high cycling.
NOTE In this context, "prismatic" refers to cells having rectangular sides and base.
When there exists an IEC standard specifying test conditions and requirements for cells used in special applications and which is in conflict with this document, the former takes precedence.
This edition includes the following significant technical changes with respect to the previous edition:
- optional characterization of cells designed for performances at very low and/or very high temperature;
- optional characterization of cells tested with CCCV charge;
- optional characterization of cells designed for rapid charge;
- optional characterization of cells designed for high cycling.
Base documents:
Replaced: IEC 60623:2026
IEC 60851-5:2008
Winding wires - Test methods - Part 5: Electrical properties
Scope: IEC 60851-5:2008 specifies the following tests:
- Test 5: Electrical resistance;
- Test 13: Breakdown voltage;
- Test 14: Continuity of insulation;
- Test 19: Dielectric dissipation factor.
Significant revisions to the previous edition include the following points:
- In Subclause 5.3, the addition of the use of carbon brush electrodes for the counting discontinuities during the high voltage continuity test, as an alternative to the V-groove pulley electrode; and
- Clarifications in the breakdown voltage test for round wires larger than 2,500 mm and for fibrous covered wires.
- Test 5: Electrical resistance;
- Test 13: Breakdown voltage;
- Test 14: Continuity of insulation;
- Test 19: Dielectric dissipation factor.
Significant revisions to the previous edition include the following points:
- In Subclause 5.3, the addition of the use of carbon brush electrodes for the counting discontinuities during the high voltage continuity test, as an alternative to the V-groove pulley electrode; and
- Clarifications in the breakdown voltage test for round wires larger than 2,500 mm and for fibrous covered wires.
Base documents:
Replaced: IEC 60851-5:2026
IEC 60851-5:2008/AMD1:2011
Amendment 1 - Winding wires - Test methods - Part 5: Electrical properties
Scope:
Base documents:
Replaced: IEC 60851-5:2026
IEC 60851-5:2008+AMD1:2011 CSV
Winding wires - Test methods - Part 5: Electrical properties
Scope: IEC 60851-5:2008+A1:2011 specifies the following tests:
- Test 5: Electrical resistance;
- Test 13: Breakdown voltage;
- Test 14: Continuity of insulation;
- Test 19: Dielectric dissipation factor.
Significant revisions to the previous edition include the following points:
- In Subclause 5.3, the addition of the use of carbon brush electrodes for the counting discontinuities during the high voltage continuity test, as an alternative to the V-groove pulley electrode; and
- Clarifications in the breakdown voltage test for round wires larger than 2,500 mm and for fibrous covered wires. This consolidated version consists of the fourth edition (2008) and its amendment 1 (2011). Therefore, no need to order amendment in addition to this publication.
- Test 5: Electrical resistance;
- Test 13: Breakdown voltage;
- Test 14: Continuity of insulation;
- Test 19: Dielectric dissipation factor.
Significant revisions to the previous edition include the following points:
- In Subclause 5.3, the addition of the use of carbon brush electrodes for the counting discontinuities during the high voltage continuity test, as an alternative to the V-groove pulley electrode; and
- Clarifications in the breakdown voltage test for round wires larger than 2,500 mm and for fibrous covered wires. This consolidated version consists of the fourth edition (2008) and its amendment 1 (2011). Therefore, no need to order amendment in addition to this publication.
Base documents:
IEC 60851-5:2008+AMD1:2011+AMD2:2019 CSV
Winding wires - Test methods - Part 5: Electrical properties
Scope: IEC 60851-5:2008+A1:2011+A2:2019 specifies the following tests:
- Test 5: Electrical resistance;
- Test 13: Breakdown voltage;
- Test 14: Continuity of insulation;
- Test 19: Dielectric dissipation factor.
Significant revisions to the previous edition include the following points:
- In Subclause 5.3, the addition of the use of carbon brush electrodes for the counting discontinuities during the high voltage continuity test, as an alternative to the V-groove pulley electrode; and
- Clarifications in the breakdown voltage test for round wires larger than 2,500 mm and for fibrous covered wires.
This consolidated version consists of the fourth edition (2008), its amendment 1 (2011) and its amendment 2 (2019). Therefore, no need to order amendment in addition to this publication.
- Test 5: Electrical resistance;
- Test 13: Breakdown voltage;
- Test 14: Continuity of insulation;
- Test 19: Dielectric dissipation factor.
Significant revisions to the previous edition include the following points:
- In Subclause 5.3, the addition of the use of carbon brush electrodes for the counting discontinuities during the high voltage continuity test, as an alternative to the V-groove pulley electrode; and
- Clarifications in the breakdown voltage test for round wires larger than 2,500 mm and for fibrous covered wires.
This consolidated version consists of the fourth edition (2008), its amendment 1 (2011) and its amendment 2 (2019). Therefore, no need to order amendment in addition to this publication.
Base documents:
IEC 60851-5:2008/AMD2:2019
Amendment 2 - Winding wires - Test methods - Part 5: Electrical properties
Scope: Amendment for IEC 60851-5:2008
Base documents:
Replaced: IEC 60851-5:2026
IEC TS 63107:2020
Integration of internal arc-fault mitigation systems in power switchgear and controlgear assemblies (PSC ‑ Assemblies) according to IEC 61439-2
Scope: IEC TS 63107:2020 states requirements for integration and testing of IAMS in low-voltage switchgear and controlgear assemblies – power switchgear and controlgear assemblies according to IEC 61439-1 and IEC 61439-2 (PSC-assemblies) to demonstrate their correct operation.
This document does not address personnel safety or damage to the PSC-assembly. These requirements are dealt with in IEC TR 61641 (see also 10.10.1).
This document does not address personnel safety or damage to the PSC-assembly. These requirements are dealt with in IEC TR 61641 (see also 10.10.1).
Base documents:
Drafts
prEN ISO/IEC 80079-20-1
Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data (ISO/IEC DIS 80079-20-1:2026)
Scope: This document is published as a dual log standard and provides guidance on classification of gases and vapours. It describes a test method intended for the measurement of the maximum experimental safe gaps (MESG) for gas-air mixtures or vapour-air mixtures under normal conditions of temperature and pressure (20 °C, 101,3 kPa) so as to permit the selection of an appropriate group of equipment. This document also describes a test method intended for use in the determination of the auto-ignition temperature (AIT) of a vapour-air mixture or gas-air mixture at atmospheric pressure, so as to permit the selection of an appropriate temperature class of equipment. Values of chemical properties of materials are provided to assist in the selection of equipment to be used in hazardous areas. Further data may be added as the results of validated tests become available. The materials and the characteristics included in a table (see Annex B) have been selected with particular reference to the use of equipment in hazardous areas. The data in this document have been taken from a number of references which are given in the bibliography. These methods for determining the MESG or the AIT may also be used for gas-air-inert mixtures or vapour-air-inert mixtures. However, data on air-inert mixtures are not tabulated. Keywords: classification of gases and vapours, measurement of the maximum experimental safe gaps (MESG)
Base documents: ISO/IEC DIS 80079-20-1; prEN ISO/IEC 80079-20-1
EN 60079-5:2015/prA2:2026
Amendment 2 - Explosive atmospheres - Part 5: Equipment protection by powder filling "q"
Scope: Amendment to EN 60079-5:2015
Base documents: 31/1982/CDV; EN 60079-5:2015/prA2:2026
prEN IEC 62990-1:2026
Workplace atmospheres - Part 1: Gas detection equipment - Performance requirements of detectors for toxic gases
Scope: This part of IEC 62990 specifies general requirements for design, function and performance, and describes the test methods that apply to portable, transportable, and fixed equipment for the detection and concentration measurement of toxic gases and vapours in workplace atmospheres.
NOTE The term gas detection equipment is often referred to as the term gas detector.
This document is applicable to continuously sensing equipment whose primary purpose is to provide an indication, alarm and/or other output function the purpose of which is to indicate the presence of a toxic gas or vapour in the atmosphere and in some cases to initiate automatic or manual protective action(s). It is applicable to equipment in which the sensor generates an electrical signal when gas is present.
This document applies to Type TX-HM (Health Monitoring) 'occupational exposure' equipment:
For occupational exposure measurement, the performance requirements are focused on uncertainty of measurement of gas concentrations in the region of Occupational Exposure Limit Values (OELV). The upper limit of measurement will be defined by the manufactur er in accordance with 4.2.1.
For equipment used for sensing the presence of multiple gases this document applies only to the part for occupational exposure measurement of toxic gas or vapour.
This document is not applicable to equipment:
– with samplers and concentrators such as sorbents or paper tape having an irreversible indication;
– used for the measurement of gases and vapours related to the risk of explosion;
– used for the measurement of oxygen;
– 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;
– used for open-path (line of sight) area gas measurement;
– used for ventilation control in car parks or tunnels.
NOTE The term gas detection equipment is often referred to as the term gas detector.
This document is applicable to continuously sensing equipment whose primary purpose is to provide an indication, alarm and/or other output function the purpose of which is to indicate the presence of a toxic gas or vapour in the atmosphere and in some cases to initiate automatic or manual protective action(s). It is applicable to equipment in which the sensor generates an electrical signal when gas is present.
This document applies to Type TX-HM (Health Monitoring) 'occupational exposure' equipment:
For occupational exposure measurement, the performance requirements are focused on uncertainty of measurement of gas concentrations in the region of Occupational Exposure Limit Values (OELV). The upper limit of measurement will be defined by the manufactur er in accordance with 4.2.1.
For equipment used for sensing the presence of multiple gases this document applies only to the part for occupational exposure measurement of toxic gas or vapour.
This document is not applicable to equipment:
– with samplers and concentrators such as sorbents or paper tape having an irreversible indication;
– used for the measurement of gases and vapours related to the risk of explosion;
– used for the measurement of oxygen;
– 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;
– used for open-path (line of sight) area gas measurement;
– used for ventilation control in car parks or tunnels.
Base documents: 31/1981/CDV; prEN IEC 62990-1:2026
FprEN IEC 60086-1:2025/prAA:2026
Primary batteries - Part 1: General
Scope: Amendment to EN IEC 60086-1:2025
Base documents: FprEN IEC 60086-1:2025/prAA:2026
prEN 50762-1:2026
Secondary batteries for light means of transport - Part 1: Test specifications for performance and durability aspects for lithium-ion and sodium-ion batteries
Scope: This document specifies test procedures for performance and durability aspects of light means of transport (LMT) batteries. These are sealed batteries with a maximum weight of 25 kg that are specifically designed to provide electric power for the traction of wheeled vehicles that can be propelled by an electric motor alone or by a combination of motor and human power, including type-approved vehicles of category L within the meaning of Regulation (EU) No 168/2013 of the European Parliament and of the Council, and that is not an electric vehicle battery. The scope of this document is restricted to lithium-ion and sodium-ion batteries.
LMT batteries contain at least the following general classes:
— batteries of L-category vehicles referred to in Article 2 of Regulation EU 168/2013 of the European Parliament and of the Council (e.g. batteries for light motorcycles, trikes and quads), where the battery weight is less than 25 kg;
— batteries for EPACs (electrically power assisted cycle) with or without type approval;
— batteries for personal mobility devices (PMD), e.g. e-kick-scooters, hoverboards and self-balancing vehicles.
Batteries above 25 kg for mobility are not in the scope of this document, even though they can be used in L category vehicles (e.g. L7 category). Batteries for toys are also not in scope of this document based on the recital 15 of Regulation (EU) 2023/1542: “Batteries used for traction in wheeled vehicles considered to be toys within the meaning of Directive 2009/48/EC of the European Parliament and of the Council, should, for the purposes of this Regulation, not be considered to be LMT batteries, but to be portable batteries.”
Re-used, remanufactured, repaired and repurposed batteries (hereafter called “R-batteries”) are also in the scope of this document.
LMT batteries contain at least the following general classes:
— batteries of L-category vehicles referred to in Article 2 of Regulation EU 168/2013 of the European Parliament and of the Council (e.g. batteries for light motorcycles, trikes and quads), where the battery weight is less than 25 kg;
— batteries for EPACs (electrically power assisted cycle) with or without type approval;
— batteries for personal mobility devices (PMD), e.g. e-kick-scooters, hoverboards and self-balancing vehicles.
Batteries above 25 kg for mobility are not in the scope of this document, even though they can be used in L category vehicles (e.g. L7 category). Batteries for toys are also not in scope of this document based on the recital 15 of Regulation (EU) 2023/1542: “Batteries used for traction in wheeled vehicles considered to be toys within the meaning of Directive 2009/48/EC of the European Parliament and of the Council, should, for the purposes of this Regulation, not be considered to be LMT batteries, but to be portable batteries.”
Re-used, remanufactured, repaired and repurposed batteries (hereafter called “R-batteries”) are also in the scope of this document.
Base documents: prEN 50762-1:2026
prEN IEC 60079-101:2026
Explosive atmospheres - Part 101: Principles of explosion protection
Scope: This document establishes basic principles to support understanding for users at all levels on the topic of equipment for explosive atmospheres. This includes an overview of the methods for the identification and assessment of hazardous situations which could lead to an explosion, and the design, construction, inspection and maintenance measures appropriate to achieve the required level of safety.
This document provides an outline of the structure of the standards prepared by IEC TC 31 for correct application of the IEC 60079, ISO 80079 and ISO/IEC 80079 series.
This document addresses the various elements in the life-cycle of equipment used in an installation involving explosive atmospheres, primarily through reference to other parts of the IEC 60079, ISO 80079 and the ISO/IEC 80079 series. This document is also intended to resolve application details that are not currently well defined for smaller appliance type applications.
Excluded from the work of IEC TC 31 and this document are hazards resulting from explosives.
Information in this document is also applicable where the requirements of other parts of the IEC 60079, ISO 80079 and ISO/IEC 80079 series do not apply. This document and the associated standards in the IEC 60079 series, do not address compliance for other aspects of electrical safety. This document, and the associated standards in the IEC 60079 series only supplement other aspects of electrical safety.
IEC 60079-101 is a BASIC SAFETY PUBLICATION (BSP) focussing on the prevention and mitigation of explosions due to flammable gas, flammable vapour, or combustible dusts. It is primarily intended for use by technical committees in the preparation of SAFETY publications in accordance with the principles laid down in IEC Guide 104, Guide 108 and ISO/lEC Guide 51.
One of the responsibilities of a TC is, wherever applicable, to make use of BSPs in the preparation of its publications.
This document provides an outline of the structure of the standards prepared by IEC TC 31 for correct application of the IEC 60079, ISO 80079 and ISO/IEC 80079 series.
This document addresses the various elements in the life-cycle of equipment used in an installation involving explosive atmospheres, primarily through reference to other parts of the IEC 60079, ISO 80079 and the ISO/IEC 80079 series. This document is also intended to resolve application details that are not currently well defined for smaller appliance type applications.
Excluded from the work of IEC TC 31 and this document are hazards resulting from explosives.
Information in this document is also applicable where the requirements of other parts of the IEC 60079, ISO 80079 and ISO/IEC 80079 series do not apply. This document and the associated standards in the IEC 60079 series, do not address compliance for other aspects of electrical safety. This document, and the associated standards in the IEC 60079 series only supplement other aspects of electrical safety.
IEC 60079-101 is a BASIC SAFETY PUBLICATION (BSP) focussing on the prevention and mitigation of explosions due to flammable gas, flammable vapour, or combustible dusts. It is primarily intended for use by technical committees in the preparation of SAFETY publications in accordance with the principles laid down in IEC Guide 104, Guide 108 and ISO/lEC Guide 51.
One of the responsibilities of a TC is, wherever applicable, to make use of BSPs in the preparation of its publications.
Base documents: 31/1983/CDV; prEN IEC 60079-101:2026
prEN IEC 60447:2026
Basic and safety principles for man-machine interface, marking and identification - Actuating principles
Scope: This International Standard establishes general actuating principles for manually operated actuators forming part of the human-machine interface associated with electrical equipment, in order to:
– increase the safety (e.g. of persons, property, environment) through the safe operation of the equipment;
– facilitate the proper and timely operation of the actuators.
These principles apply, not only for the operation of electrical equipment, machines, or complete plant under normal conditions, but also under fault or emergency conditions.
This standard is for general application, from simple cases such as single actuators (e.g. push-buttons) to multiple actuators, forming part of a large assembly of electrical and non-electrical equipment, or part of a central process control station.
This standard establishes correlations between the function of an actuator and its direction of actuating or location in relation to other actuators.
In the absence of particular rules, this standard can also be applied to actuators operated by a part of the human body other than the hand (e.g. to foot-operated devices).
This BASIC SAFETY PUBLICATION focusing on SAFETY essential requirement is primarily 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.
One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications.
– increase the safety (e.g. of persons, property, environment) through the safe operation of the equipment;
– facilitate the proper and timely operation of the actuators.
These principles apply, not only for the operation of electrical equipment, machines, or complete plant under normal conditions, but also under fault or emergency conditions.
This standard is for general application, from simple cases such as single actuators (e.g. push-buttons) to multiple actuators, forming part of a large assembly of electrical and non-electrical equipment, or part of a central process control station.
This standard establishes correlations between the function of an actuator and its direction of actuating or location in relation to other actuators.
In the absence of particular rules, this standard can also be applied to actuators operated by a part of the human body other than the hand (e.g. to foot-operated devices).
This BASIC SAFETY PUBLICATION focusing on SAFETY essential requirement is primarily 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.
One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications.
Base documents: 3/1786/CDV; prEN IEC 60447:2026
prEN IEC 60073:2026
Basic and safety principles for man-machine interface, marking and identification - Coding principles for indicators and actuators
Scope: This International Standard establishes general rules for assigning particular meanings to certain visual, acoustic and tactile indications in order to a) increase the safety of persons, property or the environment through the safe monitoring and control of the equipment or process;
b) facilitate the proper monitoring, control and maintenance of the equipment or process;
c) facilitate the rapid recognition of control conditions and HMI actuator positions.
This standard is for general application:
– from simple cases such as single indicator lights, push-buttons, mechanical indicators, light emitting diodes (LEDs) or video display screens to extensive control stations which may include a wide variety of devices for controlling an equipment or process;
– where the safety of persons, property or the environment is involved, and also where the above-mentioned codes are used to facilitate the proper monitoring and controlling of equipment;
– where a particular kind of coding is to be assigned by a technical committee to a special function.
This BASIC SAFETY PUBLICATION focusing on SAFETY essential requirement is primarily 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.
One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications.
b) facilitate the proper monitoring, control and maintenance of the equipment or process;
c) facilitate the rapid recognition of control conditions and HMI actuator positions.
This standard is for general application:
– from simple cases such as single indicator lights, push-buttons, mechanical indicators, light emitting diodes (LEDs) or video display screens to extensive control stations which may include a wide variety of devices for controlling an equipment or process;
– where the safety of persons, property or the environment is involved, and also where the above-mentioned codes are used to facilitate the proper monitoring and controlling of equipment;
– where a particular kind of coding is to be assigned by a technical committee to a special function.
This BASIC SAFETY PUBLICATION focusing on SAFETY essential requirement is primarily 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.
One of the responsibilities of a technical committee is, wherever applicable, to make use of basic safety publications in the preparation of its publications.
Base documents: 3/1785/CDV; prEN IEC 60073:2026