Upon {HEAD ~ deflection} of {TAIL ~ the test contact member} to a test position, the test contact member is brought into contact with the third conductive member thereby causing same to be deflected from its rest position to a test position in which it is not in contact with a least one of the pair of conductors 
Upon { HEAD ~ deflection } of { TAIL ~ the test contact member } to a test position , the test contact member is brought into contact with the third conductive member thereby causing same to be deflected from its rest position to a test position in which it is not in contact with a least one of the pair of conductors
OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH