●Corrective Actions
move every structure back to fully protected · AMPP SP0169unprotected + severe defect
MPCL-SGPC-GRUB-WHS1
Instant-OFF −612 mV; TR-14 not energised
Replace TR-14 transformer-rectifier unit
PL-06" SGPC–TIPU KP 12.4
DCVG severe holiday, 34% IR; −698 mV
Excavate, recoat, verify by re-survey
PL-08" SUJAWAL Loop
TR-19 not energised; section −744 mV
Restore TR-19 supply and re-energise
within this inspection cycle
TK-2201 Crude Storage
Anode bed GB-08 83% consumed; −806 mV
Install supplementary deep anode bed
PL-10" MARI–DAHARKI KP 38.1
Stray current from HT crossing; −824 mV
Install drainage bond and monitor 90 days
ZS-Flowline Network
TR-16 low output; Mg ribbon 91% consumed
Replace sacrificial ribbon, retune TR-16
capex / next budget cycle
PL-04" TIPU Gathering
GB-03 78% consumed, resistance rising
Groundbed replacement, budget FY27
ZS-Flowline Network (14 km)
Insufficient current density across network
CP redesign and groundbed upgrade
PL-08" SUJAWAL Loop
Coating degradation, 1998 asset
Phased recoat programme, 3 seasons
re-surveyed and confirmed
PL-16" MARI Export KP 24.3
Test post damaged, no reading since 2025
Reinstate test post and cable
PL-12" KANDHKOT Trunk
Isolation joint short at KP 11.6
Replace monolithic isolation joint
TK-2202 Crude Storage
Reference cell drift on permanent electrode
Recalibrate permanent Cu/CuSO₄ cell