The National Electrical Code has established a standard – NEC 220.87 – to determine an existing installation’s feed or service load. Normally this is based on the maximum demand data measured over 1 year, however, they do provide an exception if this data is not available. The maximum demand continuously recorded for 30 days measured over 15 minutes can be used to determine the load instead. AEMC provides several recorders that are ideal for these load studies:
- PEL 100 series Power and Energy Loggers
- PowerPad Model 8333, 8336, and 8435 Power Quality Analyzers
They have recently published an Apps Note to show how to capture the 15-minute demand data from a one-month data recording session using the DataView software supplied with the meters. Here is a link to a copy of the AEMC load study apps note on our website: https://dataloggerinc.com/wp-content/uploads/2024/08/NEC-220-Setup.pdf
For more information on AEMC power meters, or to find the ideal solution for your application-specific needs, contact a CAS DataLogger Application Specialist at (800) 956-4437 or request more information.