Abstract: A lock for a cathodic test station apparatus includes interfitting thread segments at diametrically-opposite portions of a cover and on the outer surface of a test station collar used to support an upstanding terminal board for coupling test leads thereto. An L-shaped resilient lock is attached to the end wall of the collar. The resilient leg extends along the side wall adjacent the leading end of one thread segment.

Abstract: An electrical current of potential is fed to or measured in test leads associated with underground piping, casings and the like through the use of a cathodic test station for flushing mounting in the ground. The test station includes a hollow cylindrical housing having a flanged upper end and an implanted lower end receiving test leads and anchored in the ground by a bar extending therethrough and by ribs projecting radially from the outer surface of the housing. A carrier forms an airtight pocket within side walls projecting from a solid end wall having a flange extending outwardly for recessed support on a shelf in the flanged upper end of the housing. A clamp within the airtight pocket of the carrier supports a terminal block. In one form, the clamp is produced by protrusions from the side wall of the carrier and in another form, a clip extends across the face of the end wall of the carrier. Ends of the clip are spaced from the end wall to support a mounting wall of a terminal block member.