Title :
Overcurrent Devices and the 1978 NEC
Author :
Richard, August L.
Author_Institution :
Service Electrical Sales, D-306, 4520 Williams Blvd., Kenner, LA, 70062.
Abstract :
Obsolescence in existing overcurrent protection devices in industrial plants is due to the possibility of higher available MVA, lower percent impedance transformers, and omission of future growth potential in present designs. Preventative design measures and solution of the present problem with simple retrofits are described. Some important articles of the National Electrical Code are addressed.
Keywords :
Chemical industry; Circuit breakers; Circuit faults; Fuses; Industrial plants; National electric code; Petroleum; Protection; Switching circuits; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.1980.4503842
