Parameters of current and equipment case voltage produced by air electrostatic discharge

Worshevsky, A.A.; Grishakov, E.S.; Dogorov, Dmitriy

doi:10.1109/emceurope48519.2020.9245719

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2022

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“…Certainly, it has to be mentioned that air discharges can have major electromagnetic impacts on equipment due to the higher peak current and faster rise times compared to the ones of contact discharges. This is due to the fact that many factors, such as test voltage, approach speed, electrode surface conditions, and climatic conditions, have a significant impact on the test results [30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Rise Time and Peak Current Measurement of ESD Current from Air Discharges with Uncertainty Calculation

2022

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The greater number of electrostatic discharges (ESDs) that occur in nature is by air rather than by contact. However, due to low reproducibility in the current of air discharges, the IEC 61000-4-2 defines that the current’s calibration of an ESD gun must be made only for contact discharges. In the work presented here, there is an attempt to improve the poor reproducibility of air discharges by a significant observation derived from ESD measurements and, more specifically, the relationship between the rise time and the peak current for every ESD gun. This fact validated in this paper from current measurements of two different ESD guns will help all who are involved in ESD measurements in EMC laboratories by reducing the existing uncertainty in measurements of air discharges.

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