Gangguan di jointing merupakan salah satu gangguan yang paling sering terjadi di SKTM yang diatasi oleh PT.PLN (Persero) UP3 Pondok Kopi. Gangguan ini juga dapat menyebabkan berkurangnya keandalan dalam pendistribusian tenaga listrik. Tujuan Penelitian ini yaitu untuk mengetahui SAIDI dan SAIFI akibat gangguan jointing pada PT.PLN (Persero) UP3 Pondok Kopi dan Energy Not Supplied (ENS) akibat gangguan tersebut serta mengetahui presentase pengaruh gangguan Jointing terhadap keandalan sistem distribusi. Metode analisis data yang digunakan pada penelitian itu dengan cara menghitung nilai Indeks SAIDI dan SAIFI dan juga menghitung ENS akibat gangguan jointing. Dari hasil perhitungan yang didapatkan nilai SAIDI akibat gangguan jointing sebesar 0,154 jam/tahun dan nilai SAIFI sebesar 0,18 pemadaman/tahun, maka dapat dikatakan keandalan dalam pendistribusian tenaga listrik PT.PLN UP3 Pondok Kopi masih dikategorikan andal.

Disturbance in jointing is one of the most common disturbances in SKTM which is handled by PT. PLN (Persero) UP3 Pondok Kopi. This interference can also cause reduced reliability in the distribution of electric power. The purpose of this study was to determine SAIDI and SAIFI due to jointing disturbances at PT. PLN (Persero) UP3 Pondok Kopi and Energy Not Supplied (ENS) due to these disturbances and to determine the percentage effect of jointing disturbances on distribution system reliability. The data analysis method used in this study was to calculate the SAIDI and SAIFI index values and also calculate the ENS due to jointing disorders. From the calculation results, the SAIDI value due to jointing disturbances is 0.154 hours/year and the SAIFI value is 0.18 blackouts/year, it can be said that the reliability in the distribution of electricity at PT. PLN UP3 Pondok Kopi is still categorized as reliable.