WG 7 - TC 34/WG 7
TC 34/WG 7
General Information
IEC TR 63139:2026 provides explanations and background information on electrical safety requirements in TC 34 standards.
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IEC TR 63139:2018(E) is related to the insulation coordination in TC 34 standards and provides explanations on mathematical addition of working voltages, insulation between circuits, use of protective extra low voltage (PELV) and insulation between LV supply and control line conductors in order to cover new technologies associated with the use of LED light sources and controllable products.
It describes in which way the addition of supply voltages and working voltages can be arranged for an assessment of the electrical insulation requirements (e.g. creepage distances and clearances) in a system if a first failure occurs.
- Technical report20 pagesEnglish languagesale 15% off
Frequently Asked Questions
WG 7 is a Technical Committee within the International Electrotechnical Commission (IEC). It is named "TC 34/WG 7". This committee has published 500 standards.
WG 7 develops IEC standards in the area of Information technology. Currently, there are 500 published standards from this technical committee.
The International Electrotechnical Commission (IEC) is the world's leading organization for the preparation and publication of international standards for electrical, electronic, and related technologies. Founded in 1906, the IEC provides a global platform for companies, industries, and governments to meet, discuss, and develop the international standards they require.
A Technical Committee (TC) in IEC is a group of experts responsible for developing international standards in a specific technical area. TCs are composed of national member body delegates and work through consensus to create standards that meet global industry needs. Each TC may have subcommittees (SCs) and working groups (WGs) for specialized topics.