The cold ternary fission of 242Pu, accompanied by A=14 isobars is investigated by using the three-cluster model in the equatorial and collinear configurations. According to the height of the potential barriers, the two mentioned structures (equatorial and collinear) are compared for two kinds of nuclear potential, proximity and Yukawa plus exponential potentials. The obtained results reveal that the overall shape of the fragmentation potential barriers and the location of the minima are independent of selecting the nuclear potential. Also it is indicated that between five isobars of A=14, 14C possess the lowest potential barrier that verifies the important role of the shell effects in the cold ternary fission. Yields and Q values for each fragmentation in the 14C accompanied ternary fission of 242Pu are also estimated in this study.
