Traction and Non-Traction HV Maintenance

The PTA requires planned scheduled and unplanned breakdown/repair maintenance of its the

sub/feeder stations, traction section cabins (including Perth switching station) and all non-traction

HV equipment and related equipment, including;

 Annual transformer oil test for sub/feeder stations;

 Major maintenance of all equipment in the sub/feeder (every four years);

 Major maintenance of all equipment in the TSCs and Perth switching station (every four

years);

 Major maintenance of all equipment in non-traction HV sites (every four years);

 Maintenance of PTA’s battery chargers; and

 Other ‘ad-hoc’ maintenance requirements (including repair and testing).