A method for improving service life in a connector for joining to a cathodically protected platform includes providing a metallic connector for joining to a cable. A non-conductive coating is provided on the connector proximate the cable. A hydroxide ion diffusion distance is determined that will insure dilution of hydroxide ions to a level that will prevent damage to an encapsulant and non-conductive coating bond on the connector. A polymer encapsulant is molded around the non-conductive coating and the cable to seal the assembled cable in the connector such that the encapsulant and non-conductive coating bond is formed at a greater path distance than the determined hydroxide ion diffusion distance from any hydroxide ion source.

An improved marine anode sled comprises a single piece casting with high surface to weight ratio providing increased active surfaces and improved reliability. In one embodiment the anode weighs about 2,000 lbs and has an active surface area of about 5,000 square inches and a current output capacity of up to 160 amps. The improved anode has considerably higher current output than existing anode sleds with similar weight. Unlike known anode sleds, the entire exposed surface of new anode sled is anode material and passes current to a surrounding medium. The single piece casting eliminates structural failure when a frame of know anode sleds is damaged, and electrical failure when cables connecting multiple anodes are damaged. Two redundant lead cable are attached proximal to opposite corners to optimize reliability and electrical performance.

A flange tab system includes a first member having a first-member-first-portion and a first-member-second-portion, a second member having a second-member-first portion and a second-member-second-portion, a third member, and a ring-like member. The flange tab system provides an electrical fitting for electrical current flow between pipelines or other structures. The flange tab system is configured to secure a wire to a pipeline for cathodic protection and various other applications.

The vehicle includes a support body, able to move along the subsea structure in a body of water, a lower proximity sensor, deployable from the support body towards the subsea structure, the lower proximity sensor comprising a lower cathodic protection probe, the lower proximity sensor being deployable between a retracted position and a deployed position. It also comprises an upper remote sensor deployable from the support body, comprising an upper cathodic protection probe. The lower proximity sensor is located below the support body in the retracted position and in the deployed position.

This modification refers to a spiral formation layout of materials, with magnesium sheets placed in parallel with a copper sheet and foamed material (4, 6, 7 and 8) in between as insulation, all placed in a plastic container(2) and solidified after inert fluid material (11) is poured in. In the center of the spiral, a magnesium anode rod (core) is connected through a wire to the surrounding spiral. This modified layout replaces the manufacturing process of the previous devices as described in the Diploma Number 1007131. The new device can generate electrical voltage of up to ?1.7 volt as before but with increased amperage of up to 500 mA. The presented layout of the materials and components allows for increased flexibility concerning the manufacturing of devices based on the requirements of industrial applications, construction sites and the various needs and demands in marine applications for ships, regardless of size.

An electrolysis device is provided. The electrolysis device includes a plurality of electrolysis cells that are electrically connected in series and are arranged successively at least partly in a stack direction, where the series connection is electrically couplable to an electrical energy source. The electrolysis device also includes a cell supply unit for supplying the electrolysis cells with at least one operating material and supply conduits connected to the cell supply unit and to opposite ends of the successively arranged electrolysis cells, where a negative electric potential of the electrical energy source is electrically couplable to an electric reference potential of the cell supply unit.

A device for cathodic protection (100) arranged to provide an impressed current cathodic protection of a metal element (10) configured to be immersed in an electrolytic environment. The device for cathodic protection (100) comprises a container body (110) comprising an inner chamber (111) and at least one conductive interface (115) arranged to be electrically connected to the metal element (10), an anode (120) integral to the container body (110) and having a portion which faces externally with respect to the container body (110), a reference electrode (130) integral to the container body (110) and having a portion which faces externally with respect to the container body (110), a direct current source (140) disposed in the container body (110) and comprising a negative pole, electrically connected to the conductive interface (115), and a positive pole, electrically connected to the anode (120), a control unit (150) disposed in the container body (110) and configured to measure an electric voltage ?V between the conductive interface (115) and the reference electrode (130) when the device for cathodic protection (100) is immersed in an electrolytic environment. In particular, the device for cathodic protection (100) is configured in such a way that, when the control unit (150) detects an electric voltage ?V>?V*, where ?V* is a predetermined threshold value, the direct current source (140) supplies an electric current I between the conductive interface (115) and the anode (120) such as to restore a condition ?V<?V*.

The invention relates to an electrolysis device including a plurality of electrolysis cells which are electrically connected in series and which are arranged at least partly successively in a stacking direction in a cell stack, where the series connection can be electrically coupled to an electrical energy source. A cell supply unit for supplying at least one operating medium to the electrolysis cells in normal operation and supply lines connected to the cell supply unit and to the cell stack, where a material of the supply lines include metal. The supply lines are connected to a first end of the cell stack so that the first end of the cell stack is electrically coupled to the cell supply unit, where the first end of the cell stack can be coupled to a negative electrical potential of the electrical energy source.

The anode assembly for cathodic protection of offshore steel piles provides stability and protection for a sacrificial anode used in the cathodic protection of offshore steel piles, particularly in regard to the challenges presented in positioning the anode in a submerged, underwater environment. The anode assembly for cathodic protection of offshore steel piles includes a conventional sacrificial anode received within a protective housing. The housing is supported underwater by a support cable. A weight is fixed to the lower end of the support cable to anchor the lower end of the support cable on an underwater surface of a body of water when the housing and the sacrificial anode are suspended in the body of water. The upper end of the support cable is secured to an external support such that the housing and the sacrificial anode are suspended therefrom in a desired underwater position.

A remotely operated vehicle (ROV) compatible photovoltaic powered cathodic protection (CP) probe can measure voltage potential of subsea structures. In an embodiment, the CP's meter is integrated and able to send CP data topside. The CP meter's compact display module also houses the telemetry board to send CP readings, via an ROV serial, topside. The CP probe does not require a battery and can be used standalone or connected through an ROV to topside logging and display. Further, the CP probe can monitor a plurality of CP voltages and other conditions such as an electrical field gradient.