Estimation of the Current Uncertainty in the Dielectric Shoe Test According to the ISO/IEC 17025 Standard in the High Voltage Laboratory LABAV of the Escuela Politécnica Nacional

The High Voltage Laboratory (LABAV) at the Escuela Politécnica Nacional conducts dielectric tests on safety shoes in accordance with the ASTM F2412-18 standard. Additionally, as per the NTE INEN ISO 17025 standard, the laboratory must estimate the uncertainty of its measurements. Despite the scarcity of examples in the existing literature, this work provides a real-world example to assist other laboratories in replicating the uncertainty estimation process. In this article, we systematically present the calculation of leakage current uncertainty in shoes using both the traditional “Guide to the Expression of Uncertainty in Measurement” (GUM) method and the Monte Carlo method (MCM) for validation. The results from both approaches yield a similar uncertainty value of u = 0.0733 mA. Finally, we highlight the advantages that the MCM method offers in this context.