IEC TR 63139:2018 

Explanation of the mathematical addition of working voltages, insulation between circuits and use of PELV 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.

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Additional information

Publication typeTechnical Report
Publication date2018-10-19
Available language(s)English
TC/SCTC 34 - Lightingrss
ICS29.140.01 - Lamps in general
Stability date  2022
File size1185 KB

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