Title :
Ampacity derating for underground cables
Author :
Shokooh, Farrokh ; Knutson, Harold M., Jr.
Author_Institution :
Operation Technol. Inc., Irvine, CA, USA
Abstract :
A simple manual method of utilizing adjustment factors to derate cable ampacities for underground installations is presented. The ampacity adjustment factors reported are obtained based on the Neher McGrath method. Various items that affect ampacities of cables are discussed in practical terms and examples are included to illustrate the method and its use
Keywords :
underground cables; Neher McGrath method; underground cable ampacity derating; Cables; Conductors; Dielectric losses; Heat transfer; Power generation; Resistance heating; Temperature; Thermal conductivity; Thermal factors; Thermal resistance;
Conference_Titel :
Industrial and Commercial Power Systems Technical Conference, 1988. Conference Record, Papers Presented at the 1988 Annual Meeting.
Conference_Location :
Baltimore, MD
DOI :
10.1109/ICPS.1988.10984
