TY JOUR TI RATIONALE OF POSSIBLE EXCEPTION OF VISUAL INSPECTION OF CATHODIC PROTECTION SYSTEMS OF STEEL HULL KW corrosion of steel hulls KW electrochemical corrosion protection of ships KW cathodic protection KW measurement of hull potential and current strength in control points JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Yastrebov, D.. AU Belavina, O.A. AU Belov, O.. AU Shvetsov, V.. PY 2017 IS 2017 PB Astrakhan State Technical University