STUDIO E MIGLIORAMENTO DELL’INCERTEZZA DEI METODI DI MISURA DELLA CONDUTTANZA VERSO TERRA DEL BINARIO

Track conductance measurement is an important topic addressed by several international standards. In particular IEC 62128-2 (EN 50122-2) suggests some measurement methods in its annex A. A deep analysis about methods suggested was performed, considering measurement uncertainty. Several on site measurements are performed to assess the measurement variability and validate a lumped element model; used to evaluate measurement systematic uncertainty due to test set up. Some validation methods of simulation results by on site measurements are reviewed and assessed. An underestimating of the similarity in case of very similar data was found and some improvement is suggested about FSV method. Once validated the model a corrective coefficient to compensate the systematic error due to measurement test set up is proposed and applied