IEC standards

Standard evolution for the determination of the power frequency breakdown voltages in insulating liquids

The 2016-2018 ongoing revision of the lEC 60156 'Insulating liquids - Determination of the breakdown voltage at power frequency' was just approved and the revised standard will be published by the end of 2018. This document will include the recommended use of a stirring system with the main purpose to reduce the scatter in the ac breakdown voltage results.

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