The most commonly performed power monitoring or logging study! Connected load studies are needed to determine whether new loads and breakers can be added to a panel. Most of you may know the measurements are based on collecting average amps data over 15-minute intervals, continuously recorded over 30-days. But there's more to it! Go here to find out: CONNECTED LOAD STUDIES – NEC 220.87 and choose the right power logger for panel capacity / current logging studies.