Title :
Long term pre-qualification testing program on a 230 kV XLPE cable system
Author :
Champion, Thomas C. ; Agostinelli, F. Marciano ; Rosevear, Robert D.
Author_Institution :
Georgia Power Res. Center, Forest Park, GA, USA
Abstract :
This paper describes the installation, testing, and results of a long term, full scale laboratory evaluation of a 230 kV XLPE insulated cable system. System components included two innovative, pre-molded splices, a 128 meter (420 foot) cable run, and two silicone oil filled, porcelain cable terminations. Load cycle aging was performed on the cable system over a four year period. After successfully completing the outdoor aging program, the system was exposed to a final impulse breakdown test. Results demonstrated the importance of considering thermomechanical bending in aluminum conductor, XLPE insulated designs. The influence on cable ampacity of solar heating at riser transitions was also demonstrated
Keywords :
bending; cable jointing; cable testing; electric breakdown of solids; electric connectors; insulation testing; life testing; organic insulating materials; polymers; power cables; solar heating; 128 m; 230 kV; 4 y; XLPE cable system; aluminum conductor; cable ampacity; cable run; impulse breakdown test; installation; load cycle aging; outdoor aging program; pre-molded splices; pre-qualification testing program; riser transitions; silicone oil filled porcelain cable terminations; solar heating; testing; thermomechanical bending; Aging; Cable insulation; Electric breakdown; Foot; Impulse testing; Laboratories; Oil filled cables; Petroleum; Porcelain; System testing;
Conference_Titel :
Transmission and Distribution Conference, 1994., Proceedings of the 1994 IEEE Power Engineering Society
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1883-8
DOI :
10.1109/TDC.1994.328451
