EVALUASI SISTEM PERLINDUNGAN PADA BTS (BASE TRANSCEIVER STATION) ARENA REMAJA PONTIANAK PT.INDOSAT TERHADAP SAMBARAN PETIR
Abstract: This study
discusses about external
and internal protection at BTS
Arena Remaja Pontianak PT.Indosat. External protection was analyzed withRolling
Sphere Method and BTS’s height is 40 meters. The efficiency of BTS Arena Remaja
is 0,93 with protection level
II and the
radius of rolling sphere is 30 meters so it could be
said that the protection chamber such as shelter and generator room are safe
from direct lightning. Furthermore, the grounding resistance
number from that measurements is around 0,02-0,07 ohm. At
internal protection known that overvoltage will be occurs with peak currents in
Kalimantan Barat, determined base on the average of peak currents in the earth, as non ideal
value is 36,16 kA which can damage the equipment in protection chamber through
the electric power line and signal line (coaxial cable). More voltage in the
electrical transmission is 7753,78 kV and in the signal (coaxial cable) minimum
0.07764 kV and maximum0.07909 kV
with the fault of current is 36.16 kA. That voltage will continue
flowing to the
equipment, so there should be some equipment protection.
For an alternative, mounting arresters can be done in stages according to the
characteristics.
Penulis: Joninton
Kode Jurnal: jptlisetrodd160520