|In the US, NEC 220.87 load studies are often required to determine the available capacity when adding loads to existing feeders, circuits, etc. Maximum demand data is needed, and in accordance with NEC 220.87, a common method to obtain this information is by doing a 30 day load survey. Regardless if you are in the US, the capacity of the circuit needs to be known before installing EV chargers and other loads.
Upon completion of the load survey, free Dran-View 7 Pro software can quickly and easily show the maximum demand and/or amperage measured during the power survey, as well as any PQ events that were detected. Use one software with all of your portable Dranetz instruments!
Click the button below to see our DranXperT NEC 220.87 application note.