This invention relates to a method of detecting faults on an electrical power line and a sensor for {HEAD ~ use} in {TAIL ~ such a method} 
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This invention relates to a method of detecting faults on an electrical power line and a sensor for { HEAD ~ use } in { TAIL ~ such a method }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL