NSAI Electrotechnical Standards Programme

The NSAI Electrotechnical Standard Programme covers all areas of electro-technology including power generation (including all renewable energy sources), transmission, distribution, smart grids, batteries, home appliances, office and medical equipment, public and private transportation, semiconductors, fibre optics, nanotechnology, multimedia, information technology, and more. It also addresses safety, electromagnetic compatibility, performance and environmental issues.

NSAI Standards is the Irish member organization of the International Electrotechnical Commission (IEC) and the European Committee for Electrotechnical Standardization (CENELEC) and the standards output of these bodies provides the primary source for Irish Standards in the electrical area.

International Electrotechnical Commission (IEC)

The IEC National Committee of Ireland is the sole official representative to the IEC and serves as the focal point for all companies and organizations in Ireland who are interested in the development and use of globally relevant Standards for electrical and electronic devices and systems and corresponding testing and certification, so called conformity assessment.

As such the IEC National Committee represents all of the country’s needs in electrotechnology in the IEC and defends IEC interests in Ireland. Its aim is to encourage the effective participation of all relevant national organizations, including industry, government, research facilities and academia in the development of IEC International Standards to facilitate global trade, as well as quality and risk management for the benefit of Ireland. The IEC National Committee of Ireland also provides the framework to national industry, regulators and other institutions to advocate for Ireland interests in international standard setting in electrotechnology, conformity assessment and related matters.

Global IEC work underpins international trade in electrical and electronic goods, technical innovation, affordable infrastructure development, efficient and sustainable energy access, and the safety and security of people, systems, data, and the environment.

Technologies covered by the IEC include: power generation (including all renewable energy sources), transmission, distribution, home appliances, office and medical equipment, all public and private transportation, sensors, fibre optics, nanotechnology, information technology, and much more. IEC work is foundational for Smart Cities, energy efficiency, cyber security, universal electricity access, and to reach 12 of the 17 UN Sustainable Development Goals.

Further information is available on the IEC website

European Committee for Electrotechnical Standardization (CENELEC)

CENELEC is a European Standards Organization responsible for standardization in the electro-technical engineering field. CENELEC prepares voluntary standards, mainly European Standards (EN), which help facilitate trade between countries, create new markets, cut compliance costs and support the development of a Single European Market. 

CENELEC creates market access at European level but also at international level, adopting International Standards wherever possible, through its close collaboration with the IEC under the Frankfurt Agreement.

The CENELEC Internal Regulations require that CENELEC European Standards are implemented at national level by being given the status of a national standard and by withdrawal of any conflicting national standard. The fact that European Standards must be transposed into a national standard in all member countries guarantees that a manufacturer has easier access to the market of all these European countries when applying European Standards. This applies whether the manufacturer is based in the CENELEC territory or not.

NSAI Electro Technical Committee (ETC)

In order to advise NSAI on technical and policy matters concerning Ireland’s membership of the IEC and CENELEC, the formulation of Irish Standards and the establishment and maintenance of the infrastructure of NSAI national mirror Technical Committees, NSAI has established a consultative Electro Technical Committee (ETC). The membership of the committee is composed of key stakeholders/collective bodies that provide an authoritative and representative voice or policy role in the electrical sector.

NSAI ETC Technical Committees (TC)

To deliver the technical standardization work, NSAI maintains a network of Technical Committees (TC) covering many areas of electro-technology. These committees generally mirror one or more IEC and CENELEC committee. NSAI technical committee members contribute their knowledge and expertise on a voluntary basis and join their European and International counterparts in developing a worldwide system of standards. NSAI staff members provide the Secretariat for many NSAI ETC Technical Committees.

Since 2017, NSAI has assumed direct responsibility for the maintenance and development of the national system of electrical installation standards. This work is focused primarily in NSAI ETC TC2, where the revision of ETCI Publication ET101:2008 has commenced.

TC1 Safety of household and similar electrical appliances

NSAI ETC TC1 Safety of Household and Similar Electrical Appliances

Scope/Introduction | NSAI ETC TC1 is responsible for the Irish contribution to standards in the field of safety of electrical household appliances, including those used on commercial premises and on farms. The committee participates in the work of IEC TC61 and CENELEC TC61 which provide International and European Standards for this area of electro-technology.
International/European Committees Mirrored (in full or in part)

TC2 Electrical Installations

NSAI ETC TC 2 Electrical Installations

Scope/Introduction | NSAI ETC TC2 is responsible for the development, maintenance and revision of a coherent set of national standards and other deliverables for electrical installations in residential, commercial and industrial premises, including the preparation, maintenance and revision of Standards, Codes of Practice and Guides dealing with electrical installations up to 1000V.
The committee has assumed responsibility for the maintenance of ETCI Publication ET101. In 2017 TC2 commenced the revision of ET101:2008.
International/European Committees Mirrored (in full or in part)

TC3 Power Installations exceeding 1 kV a.c. (1,5 kV d.c.)

NSAI ETC TC 3 Power Installations exceeding 1 kV a.c. (1,5 kV d.c.)

Scope/Introduction | NSAI ETC TC3 is the Technical Committee responsible for preparing national installation standards for High Voltage power installations (exceeding 1 kV a.c. or 1,5 kV d.c.) located indoors or indoors, including earthing. The standard specifies the design requirements of the installation, and the selection and erection of electrical equipment in order to ensure the safety of persons and the proper operation of the installation. The installation standard is not applicable to factory built and type tested equipment, but is relevant to the installation of this equipment. The installation requirements are not applicable to overhead and underground lines between separate installations. Thus the work of the committee is analogous to the work of NSAI ETC TC2 ‘Electrical Installations’ which develops and maintains the requirements for installations connected at low voltage. The two committees co-ordinate closely on interface issues.

International/European Committees Mirrored (in full or in part)

TC4 Switchgear, Controlgear and Associated Equipment

NSAI ETC TC 4 Switchgear, Controlgear and Associated Equipment

Scope/Introduction | NSAI ETC TC4 is responsible for coordinating the development of standards for switchgear, controlgear and associated equipment, with articular reference to the work of the IEC and CENELEC. The matter of Residual Current Devices (RCDs) has been delegated to an independent Task Force (RCDTF).

International/European Committees Mirrored (in full or in part)

TC6 Equipment for Potentially Explosive Atmospheres

NSAI ETC TC 6 Equipment for Potentially Explosive Atmospheres

Scope/Introduction | NSAI ETC TC6 is responsible for co-ordinating the development of standards for equipment for use where there is a hazard due to the possible presence of explosive atmospheres of gases, vapours, mists or combustible dusts. TC6 members are active participants in the international standards work of IEC TC31, which was established over 60 years ago, and also CENELEC TC31. IEC and CENELEC standards cover the life cycle of equipment for use in potentially explosive atmospheres through design, manufacture, installation, maintenance and repair. The area of potentially explosive atmospheres is subject to two EU Directives; Directive 2014/34/EU which covers equipment and protective systems and Directive 1999/92/EC which covers the safety and health protection of workers potentially at risk.

International/European Committees Mirrored (in full or in part)

  • IEC TC31 Equipment for explosive atmospheres
  • CLC/TC31 Electrical apparatus for potentially explosive atmospheres
TC10 Electrical Equipment in Medical Practice

NSAI ETC TC 10 Electrical Equipment in Medical Practice

Scope/Introduction | 
NSAI ETC TC10 is responsible for the standardisation of electrical equipment used in medical practice. The Committee contributes to CENELEC TC62 and also to IEC TC62 and its four subcommittees:

  • SC62A: Common Aspects of Electrical Equipment used in Medical Practice
  • SC62B: Diagnostic Imaging Equipment
  • SC62C: Equipment for Radiotherapy, Nuclear Medicine and Radiation Dosimetry
  • SC62D: Electromedical Equipment

TC10 provides a national focal point for the development of the IEC 601 series of standards. The goal of the IEC 601 standards is to improve safety in the use of medical electrical equipment by providing a body of standards that assist:

  • Manufacturers in designing and assembling safe medical electrical equipment and systems
  • Manufacturers, test houses and regulatory authorities in assessing compliance with requirements set forth in the standard
  • Health care professionals in managing the risks associated with use of these products

International/European Committees Mirrored (in full or in part)

TC11 Safety of Electronic Equipment

NSAI ETC TC11 Safety of Electronic Equipment within the field of Audio/Video, Information Technology and Communication Technology


Scope/Introduction | NSAI ETC TC11 is the national committee responsible for coordinating the development of standards for electronic equipment within the field of audio/video, information technology and communication technologies. TC11 members are active participants in the international standards work of both IEC TC108 and CENELEC TC108X. The Committee takes a particular interest in the development of IEC Publication 62368-1, which deals with safety requirements for audio/video, information and communications technology equipment and the maintenance of IEC Publication 60950-1. Both standards been listed as harmonized European Standards under the EC "Low Voltage Directive", 2014/35/EU.
International/European Committees Mirrored (in full or in part)

TC12 Electronic Communication Systems

NSAI ETC TC 12 Electronic Communication Systems

Scope/Introduction | 
NSAI ETC TC12 is responsible for co-ordinating standards development in the area of electronic communication systems. It monitors and participates in the international work of IEC TC46 (Cables, wires, waveguides, R.F. connectors, R.F. and microwave passive components and accessories), IEC TC86 (Fibre optics) and IEC TC100 (Audio, video and multimedia systems and equipment). The work of IEC TC100 covers a wide area of technology including specifications for the performance, methods of measurement, application and interoperability of consumer and professional AV and multimedia systems and equipment. The work of TC12 leads to the eventual publication of European Standards (EN), which in turn are transposed into voluntary Irish Standards (I.S. EN).

International/European Committees Mirrored (in full or in part)

TC13 Alarm Systems

NSAI ETC TC 13 Alarm Systems

Scope/Introduction | 
NSAI ETC TC13 is responsible for standardization in the field of alarm systems. Alarm systems encompasses detection, signalling, and monitoring systems for the protection of persons and property, including elements used in such systems. The scope includes in particular intruder and hold-up alarm systems, access control systems, periphery protection systems, combined alarm and fire alarm systems, social alarm systems, CCTV systems, and other monitoring and surveillance systems related to security applications, as well as associated and dedicated transmission and communication systems. Conformity tests are included in the scope of the standardization.

International/European Committees Mirrored (in full or in part)

TC14 Electric Cables

NSAI ETC TC 14 Electric Cables

Scope/Introduction | 
NSAI ETC TC14 is the Committee responsible for standards in the area of low, medium and high voltage cables and accessories. In this context work is monitored and contributions are made to both IEC and CENELEC TC20 committees, sub-committees and working groups. TC14 is also extremely active in the data cable sector, attending and contributing to the responsible IEC TC46 committee.

International/European Committees Mirrored (in full or in part)

TC15 Human Exposure to Electromagnetic Fields

NSAI ETC TC 15 Human Exposure to Electromagnetic Fields

Scope/Introduction | 
The scope of NSAI ETC TC15 is to develop standards in the area of Electromagnetic Fields and Human Health. This is be achieved through participation in the work of CENELEC TC106X (Electromagnetic fields in the human environment) and through the continued monitoring of IEC TC106 (Methods for the assessment of electric, magnetic and electromagnetic fields associated with human exposure).
The following aspects are considered in this work:

  • Provision for compliance with basic exposure restrictions to prevent harmful effects
  • Specification of appropriate measurement techniques
  • Provision of guidance on the reduction of exposure of people
  • Guidance on the reduction of indirect effects of exposure (contact current effects)

International/European Committees Mirrored (in full or in part)

TC18 Marine Energy-Wave and Other Water Current Converters

NSAI ETC TC 18 Marine Energy-Wave, Tidal and Other Water Current Converters

Scope/Introduction | 
NSAI ETC TC18 was set up to mirror the work of IEC TC114 whose scope is to prepare international standards for marine energy conversion systems. Its primary focus will be on conversion of wave, tidal and other water current energy into electrical energy. These standards will also help integrate wave and tidal energy converters into the international marketplace, especially as more and more governments mandate efforts for sustainable energy.

The need for sustainable energy has spurred recent growth in wave and tidal energy systems. Countries all over the world are using the pull of the tides and the rhythm of the waves to generate power. Ireland is renowned for its extensive coastline and it is considered to have one of the largest wave tidal ranges in the world. Marine energy technology has shown so much recent growth that the IEC is enlisting energy experts worldwide to begin developing standards for wave and tidal energy systems. The IEC Technical Committee 114, Marine Energy - Wave and Tidal Energy Converters facilitates the International Energy Agency (IEA) in developing best practices for marine energy. Ireland is a member country of IEA.
International/European Committees Mirrored (in full or in part)

TC19 Insulators and Surge Arresters

NSAI ETC TC 19 Insulators and Surge Arresters

Scope/Introduction | 
Standardization of insulators for high-voltage systems and equipment including bushings, insulators for overhead lines and substations and their couplings, and for high- and low-voltage surge arresters and other surge protective devices, including the choice of arresters to provide adequate protection of the system with satisfactory reliability.
International/European Committees Mirrored (in full or in part)

TC20 Smart Grids, Renewables, Electric Vehicles and Energy Efficiency

NSAI ETC TC 20 Smart Grids, Renewables, Electric Vehicles and Energy Efficiency

Scope/Introduction | NSAI ETC TC20 was established to coordinate the Irish input to the standardization work of the IEC in the areas of smart grids (incl. interoperability, transmission, distribution, metering, consumer connection and cyber security), renewable energy, electric road vehicles and energy efficiency.

TC20 also participates in the development of CENELEC European Standards or EN's in the same areas of technology. EN's are, as far as possible, based on the corresponding IEC Standards. Once an EN is published by CENELEC, it is adopted without change by the NSAI as a voluntary Irish Standard.

Certain work falling under the scope of TC20 is subject to EC and EFTA mandates to the European Standards Bodies (including CENELEC) to develop standards in support of European policies and legislation.

International/European Committees Mirrored (in full or in part)

TC21 Electrostatics

NSAI ETC 21 Electrostatics

Scope/Introduction | 
NSAI ETC TC21 was established to coordinate the national input to the work of IEC TC101 with reference to:

Standardisation in the field of electrostatics to provide general guidance on test methods to evaluate the generation, retention and dissipation of electrostatic charges.

Ascertaining the effect of electrostatic discharges.

Methods of simulation of electrostatic phenomena for testing purposes.

Requirements for design and implementation of handling areas or procedures, equipment, and materials used to reduce or eliminate electrostatic hazards or undesirable effects.

International/European Committees Mirrored (in full or in part)


Environmental Standardization for Electrical and Electronic Products and Systems

(Currently under development)


Residual Current Devices Task Force

(Currently under development)