Service Life Analysis of Underground Cables Using PI and DAR Methods

Giovanni Dimas Prenata
Eriko Ramadhani, Mohammad
Sarwo Widagdo, Reza

Jurnal JEETech
Vol. 7 No. 1 (2026): Nomor 1 May

This study examines the insulation resistance of underground conductors connecting 3-phase induction motors that drive pump machines. The results of the insulation resistance measurements were analyzed using the Polarization Index (PI) method and the Dielectric Absorption Ratio (DAR) method. There are 3 areas of conductor cables analyzed to calculate the remaining life of each conductor cable. For area 1, the remaining life of the inter-phase conductor cable is R-S 20.9 years, S-T 20.5 years T-R 20.8 years. Area 2, the remaining life of the inter-phase conductor cable is R-S 20.6 years, S-T 20.7 years T-R 21.1 years. For area 3, the remaining life of the inter-phase conductor cable is R-S 16.5 years, S-T 14 years T-R 15 years.