Title :
Experimental validation of a thermal model for the ampacity derating of electric cables in wrapped trays
Author :
de Cassia A.Figueiredo, R. ; Carneiro, Sandoval, Jr. ; Cruz, Manuel Ernani C
Author_Institution :
Eletronucl.-Eletrobras Termonucl. SA, Rio de Janeiro, Brazil
fDate :
7/1/1999 12:00:00 AM
Abstract :
As a safety measure for certain applications in nuclear power stations, cable trays must be wrapped with a fireproof material. In this paper a new implementation of a thermal model is presented, suitable for the determination of the ampacity derating of electric cables in wrapped trays. Model simulation predictions have been compared with field tests to validate the model. Better agreement between simulations and experimental results is obtained when the standard procedure to determine the power loss in the cable mass is modified to account for the actual measured height of the cable mass in the tray
Keywords :
electric conduits; flameproofing; nuclear power stations; power cables; sensitivity analysis; ampacity derating; cable trays; electric cables; field tests; fire protection; fireproof material; insulated conductors; model simulation predictions; nuclear power stations; power loss determination; safety measure; sensitivity analysis; thermal model; wrapped trays; Cable insulation; Conducting materials; Heat transfer; Nuclear measurements; Power generation; Power measurement; Predictive models; Protection; Temperature; Testing;
Journal_Title :
Power Delivery, IEEE Transactions on
