Ampacity calculations for mixed underground cable systems in the same ductbank
Conference
·
OSTI ID:152807
- Raytheon Engineers and Constructors, Lyndhurst, NJ (United States). Ebasco Division
The steady state ampacity is calculated for mixed electric power underground cable circuits in a single trench or ductbank. The methodology presented in this paper can be applied to any practical number of balanced, three phase circuits (each in trefoil, pipe or conduit) of different voltage classes, cable sizes, load currents and cable systems to located anywhere within a single trench or ductbank. The different thermal resistivities of the backfill or ductbank and the surrounding soil are taken into consideration. A practical example for 10 circuits in a trench is provided.
- OSTI ID:
- 152807
- Report Number(s):
- CONF-9404175--; ISBN 0-7803-1883-8
- Country of Publication:
- United States
- Language:
- English
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