Section 220.87 of the California Electrical Code requires that prior to modifying or adding to electrical systems, their existing loads must be determined. The code requires 30 days of data monitoring, but in buildings with stable loads, the Campus Electrical Engineer may reduce this requirement to 7 days.
Load studies are required so that electrical panels do not become overloaded or their loads become unbalanced between phases.
If you have any questions about load studies, please contact us.