U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 14, 2020
Short-circuit calculations must be submitted for systems with an aggregate generating capacity of 1500 kilowatts or more by utilizing one of the following methods:
(a) Exact calculations using actual impedance and reactance values of system components.
(b) Estimated calculations using NAVSEA DDS 300-2 (incorporated by reference, see 46 CFR 110.10-1).
(c) Estimated calculations using IEC 61363-1 (incorporated by reference; see 46 CFR 110.10-1).
(d) The estimated calculations using a commercially established analysis procedure for utility or industrial applications.