Patent ID: 8256269

Claim:
A method of sensing aqueous chemicals using an aqueous chemical leak detection cable comprising: obtaining an aqueous chemical leak detection cable comprising: a base member that is made from a non-conductive polymer that is resistant to corrosion by said aqueous chemicals, said base member formed from two insulated lobes that are joined together to form two interstices on opposite sides of said insulated lobes; at least one conductor wire in at least one lobe of said base member; sensor cables that have a conductive polymer coating that is resistant to corrosion by said aqueous chemicals that are disposed in said interstices; a non-conductive, aqueous chemical pervious layer surrounding at least one of said sensor cables that assists in preventing false readings from non-liquid contaminants; a sensor wire in each of said sensor cables that is protected from said aqueous chemicals by said conductive polymer coating that is resistant to corrosion by said aqueous chemicals; wherein said base member is twisted so that said sensor cables are exposed to a surface along a length of said aqueous chemical leak detection cable; using said aqueous chemical leak detection cable to detect the presence of said aqueous chemicals on said surface whenever said aqueous chemicals create a conductive path between said sensor cables such that said conductive polymer coating creates said conductive path to said sensor wires from said aqueous chemicals and simultaneously protects said sensor wires from corrosion.