Electro Technical Council of Ireland

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

Scope/Introduction: || back to top

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

International/European Committees Shadowed (in full or in part): || back to top

IEC TC99 System engineering and erection of electrical power installations in systems with nominal voltages above 1 kV a.c. and 1,5 kV d.c., particularly concerning safety aspects
CLC TC99X Power installations exceeding 1 kV a.c. (1,5 kV d.c.)

The hyperlinks in the table above link to the IEC and CENELEC "Dashboards", which provide very detailed information on the relevant committees, their scope, structure, strategic plans, projects, published standards, draft documents, votes and meetings. This content is being continually updated and is the definitive source of information on these committees.

Annual Reports: || back to top

Useful Links: || back to top

Irish Standards Catalogue (online catalogue of Irish Standards, free guest access and standard previews)
Your Standards Your Say

Livelink (Members only): || back to top

ETCI TC3 committee documents are hosted on the TC3 Livelink National eCommittees platform. The committee Secretary will have arranged for all members of the committee to have been issued with passwords. In the event of any difficulties, the committee Secretary will normally be able to assist, otherwise the national Livelink Helpdesk may be contacted at









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