The actual impedance of the power line may then be compared with the initial impedance profile and it is possible to ascertain whether {HEAD ~ a fault} exists on {TAIL ~ the power line} 
exists on
The actual impedance of the power line may then be compared with the initial impedance profile and it is possible to ascertain whether { HEAD ~ a fault } exists on { TAIL ~ the power line }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL