This paper presents the results of long-term electromagnetic interference(E
MI) measurements on the bundle of 6 Cardinal conductors tested at the Kocha
ng 765-kV full scale test line. The instrumentation, and the most important
features of the facilities are also described. This new 3-phase double cir
cuit test line can be energized at line-to-line voltages up to 850 kV. The
analysis of the data shows that the 6-Cardinal conductor bundle meets the r
adio and television interference guidelines of the Korea Electric Power Cor
poration (KEPCO).