prBAS EN IEC 62836:2025

IEC 62836:2024 provides an efficient and reliable procedure to test the internal electric field in the insulating materials used for high-voltage applications, by using the pressure wave propagation (PWP) method. It is suitable for a planar and coaxial geometry sample with homogeneous insulating materials of thickness larger or equal to 0,5 mm and an electric field higher than 1 kV/mm, but it is also dependent on the thickness of the sample and the pressure wave generator.<br /> This first edition cancels and replaces IEC TS 62836 published in 2020.<br /> This edition includes the following significant technical changes with respect to IEC TS 62836:<br /> a) addition of Clause 12 for the measurement of space charge distribution in a planar sample;<br /> b) addition of Clause 13 for coaxial geometry samples;<br /> c) addition of Annex D with measurement examples for coaxial geometry samples;<br /> d) addition of a Bibliography;<br /> e) measurement examples for a planar sample have been moved from Clause 12 in IEC TS 62836 to Annex C.