An insert for constructing a cable accessory used to inject a fluid into a cable. The cable accessory has an outer body defining an interior configured to house a conductor of the cable. The outer body includes an injection port with an internal channel configured to receive the fluid. The insert has first and second portions. The first portion is configured to line a portion of the interior of the cable accessory. The first portion has a first through-channel configured to allow the conductor of the cable to pass at least partway therethrough. The second portion is configured to line the internal channel of the injection port. The second portion has a second through-channel in fluid communication with the first through-channel. The insert is less permeable to the fluid than the outer body of the cable accessory. The insert may be molded into the outer body.

A welding sleeve for armored cables including a first sleeve part arranged to receive an armored cable, wherein the first sleeve part has a perimeter surface for welding armoring wires of an armored cable thereto, a second sleeve part arranged to receive an armored cable, wherein the second sleeve part has a perimeter surface for welding armoring wires of an armored cable thereto, wherein the first sleeve part is arranged to receive the second sleeve part, the second sleeve part being axially displaceable relative to the first sleeve part, along a common central axis, between an extended position and a retracted position, in which retracted position the first sleeve part receives a greater portion of the second sleeve part than in the extended position, and a rotation preventing arrangement arranged to prevent rotational motion of the first sleeve part relative to the second sleeve part.

A welding sleeve for armored cables including a first sleeve part arranged to receive an armored cable, wherein the first sleeve part has a perimeter surface for welding armoring wires of an armored cable thereto, a second sleeve part arranged to receive an armored cable, wherein the second sleeve part has a perimeter surface for welding armoring wires of an armored cable thereto, wherein the first sleeve part is arranged to receive the second sleeve part, the second sleeve part being axially displaceable relative to the first sleeve part, along a common central axis, between an extended position and a retracted position, in which retracted position the first sleeve part receives a greater portion of the second sleeve part than in the extended position, and a rotation preventing arrangement arranged to prevent rotational motion of the first sleeve part relative to the second sleeve part.

Described is a rejuvenation method for a cable used in a subsea environment. The method includes applying a bias signal to a conducting element of the cable, the bias signal being selected to improve the insulation properties of the cable. The bias signal is selected such that, in the event of an electrical leakage current of predetermined magnitude flowing between the conducting element and a salt containing liquid of the subsea environment at a fault location. The bias signal can be a voltage which promotes an electrochemical reaction between the conducting element and the liquid resulting in the formation of a barrier material at the fault location restricting further leakage current flow and enhancing the insulation resistance of the cable. The bias signal is selected such that the electrochemical reaction promoted by the bias signal maintains the presence of the barrier material at the fault location.

Described is a rejuvenation method for a cable used in a subsea environment. The method includes applying a bias signal to a conducting element of the cable, the bias signal being selected to improve the insulation properties of the cable. The bias signal is selected such that, in the event of an electrical leakage current of predetermined magnitude flowing between the conducting element and a salt containing liquid of the subsea environment at a fault location. The bias signal can be a voltage which promotes an electrochemical reaction between the conducting element and the liquid resulting in the formation of a barrier material at the fault location restricting further leakage current flow and enhancing the insulation resistance of the cable. The bias signal is selected such that the electrochemical reaction promoted by the bias signal maintains the presence of the barrier material at the fault location.

A high-pressure connector for use with a cable accessory having an injection port with an opening into an interior chamber defined by one or more sidewalls. The connector includes a body portion and one or more fluid seals. The body portion has an inner fluid chamber, an outer surface, and an aperture. The inner fluid chamber is configured to allow a conductor of a cable to pass therethrough. The fluid seal(s) are positionable between the outer surface of the body portion and the one or more sidewalls to define an outer fluid chamber. The outer fluid chamber is positioned such that the opening of the injection port is positioned within the outer fluid chamber so that a fluid exiting the injection port through the opening enters the outer fluid chamber. The aperture connects the outer and inner fluid chambers and allows the fluid to flow therebetween.

A high-pressure connector for use with a cable accessory having an injection port with an opening into an interior chamber defined by one or more sidewalls. The connector includes a body portion and one or more fluid seals. The body portion has an inner fluid chamber, an outer surface, and an aperture. The inner fluid chamber is configured to allow a conductor of a cable to pass therethrough. The fluid seal(s) are positionable between the outer surface of the body portion and the one or more sidewalls to define an outer fluid chamber. The outer fluid chamber is positioned such that the opening of the injection port is positioned within the outer fluid chamber so that a fluid exiting the injection port through the opening enters the outer fluid chamber. The aperture connects the outer and inner fluid chambers and allows the fluid to flow therebetween.

A submersible habitat chamber providing a contained environment for repairing subsea cable is provided. The habitat chamber includes first and second shell parts assembled to at least partly define the contained environment, a first seal provided between the first and second shell parts, a cable seal provided for engagement with the cable, and at least one access port through at least one of the shell parts to allow a user to access the contained environment from outside the habitat. A method of using the habitat chamber and a kit for assembly of the chamber are also provided.

A submersible habitat chamber providing a contained environment for repairing subsea cable is provided. The habitat chamber includes first and second shell parts assembled to at least partly define the contained environment, a first seal provided between the first and second shell parts, a cable seal provided for engagement with the cable, and at least one access port through at least one of the shell parts to allow a user to access the contained environment from outside the habitat. A method of using the habitat chamber and a kit for assembly of the chamber are also provided.

An apparatus and method comprising an access tube which is insertable into a duct via a flange once an insulator of the ISO Bus system is removed. The access tube is configured so one end connects to the surface of the conductor and the second end remains open to the outside of the duct. The method comprises removing at least one insulator from the ISO Bus system and inserting the access tube through a flange and accessing the damaged conductor with one or more repair tools via an open end of the access tool. Any debris generated during the repair is contained in the access tube and can be easily vacuumed before removing the access tube.