A joint assembly for two high voltage submarine cables (20, 30) of wet or semi wet design includes a water permeable enclosure (10) for receiving the two cables (20, 30) at opposite ends (16, 17) of the enclosure, and at least one joint unit (40, 50, 60) within said enclosure. Each joint unit connects corresponding phase conductors of each of the two cables (20, 30). A method of joining two three-phase high voltage submarine cables (20, 30) and a wet design electrical subsea pre-molded joint (100).

A dry joint for jointing a cable with a wet or semi-wet/semi-dry design to a cable with a wet, semi-wet/semi-dry or dry design and a method of manufacturing a cable dry joint are provided. A cable with a wet or semi-wet/semi-dry design having an end of cable water barrier is also provided. A dry joint water barrier suitable for rendering a joint dry is also provided, where at least one of the jointed cables is of a wet or semi-wet/semi-dry design.

A dry joint for jointing a cable with a wet or semi-wet/semi-dry design to a cable with a wet, semi-wet/semi-dry or dry design and a method of manufacturing a cable dry joint are provided. A cable with a wet or semi-wet/semi-dry design having an end of cable water barrier is also provided. A dry joint water barrier suitable for rendering a joint dry is also provided, where at least one of the jointed cables is of a wet or semi-wet/semi-dry design.

A watertight electrical compartment for use in an irrigation device can include a compartment body having a chamber and a sealing section configured to mate with one or more sealing rings. A sealing cap can mate with the sealing section and/or the sealing rings to seal the chamber. A cap retainer can be advanced over at least a portion of the sealing cap. One of the compartment body and cap retainer can have internal threads to be screwed onto external threads of the other one of the compartment body and cap retainer. The cap retainer can also have a stopping feature to keep the sealing cap in its sealed position. The watertight electrical compartment can be used in a wireless flow sensor assembly, a battery operated irrigation controller, and/or a battery-operated central controller device, to provide irrigation control, and/or sensor information, without the need for AC power.

A watertight electrical compartment for use in an irrigation device can include a compartment body having a chamber and a sealing section configured to mate with one or more sealing rings. A sealing cap can mate with the sealing section and/or the sealing rings to seal the chamber. A cap retainer can be advanced over at least a portion of the sealing cap. One of the compartment body and cap retainer can have internal threads to be screwed onto external threads of the other one of the compartment body and cap retainer. The cap retainer can also have a stopping feature to keep the sealing cap in its sealed position. The watertight electrical compartment can be used in a wireless flow sensor assembly, a battery operated irrigation controller, and/or a battery-operated central controller device, to provide irrigation control, and/or sensor information, without the need for AC power.

An offshore power distribution system includes first cables each having a first dry mate connection at a first end and each connecting to an offshore power generator unit at a second end, a subsea junction box at a sea floor, a second cable extending from the junction box to a subsea transformer station at the sea floor and connecting with the transformer station, and a third cable extending from the transformer station to an onshore receiver. Each first dry mate connection terminates in the junction box. The second cable has a second dry mate connection at an end thereof. The second dry mate connection terminates inside the junction box and is operatively connected to each first dry mate connection. The power distribution system is configured to transmit electric power from the power generator unit, via the first cables, the second cable, and the third cable, to the receiver.

A tool system is provided that can include a tool body, a controller, and an actuator that is configured to implement a functionality. The tool system can include an extender in communication with the controller and a remote device in communication with the extender. The remote device can transmit a first signal to the extender. The extender can, in response to the first signal, transmit a second signal to the controller to cause the actuator to implement the functionality.

The invention is concerned with a method, arrangement, computer program and computer program product for estimating the thermal resistivity of soil surrounding an underground cable. The arrangement comprises a thermal resistivity estimating unit that obtains a first temperature (T.sub.s) from a first temperature sensor at an exterior surface of the cable, obtains a second temperature (T.sub.a) from a second temperature sensor placed in the soil at a distance from the cable, obtains a measurement of current (I.sub.c) transmitted in the cable and estimates the thermal resistivity of soil based on the first and the second temperatures (T.sub.s, T.sub.a) as well as on the current measurement (I.sub.c).

The present disclosure relates to a submersible apparatus (1) for testing a submarine high voltage (HV) cable system. The apparatus (1) includes a cable termination (100) including an electrical insulator (101) and a shielding electrode (102) for the electrical connection with a cable end (201). The apparatus (1) additionally includes a cable bend restrictor (300) having a through channel (301), and a termination locking (400) in through communication with the cable bend restrictor (300) and the cable termination (100). According to another aspect, a method for testing a submarine high voltage (HV) cable apparatus using the above testing apparatus (1) is additionally disclosed.

In particular, the invention relates to a system for regulating the temperature of a cable which is laid at least partly in a body of water and on land, said system including: means for collecting water on the land-side such that water can be collected into said means and can be dispensed out of said means; means for controlling a quantity of water such that a quantity of water flowing out of the means for collecting water on the land-side or flowing into said means from the body of water can be controlled; and means for cooling a cable, said means surrounding the cable in the form of a sleeve in at least one section of the means for collecting water on the land-side up to a body of water, wherein a cavity through which the water flows in order to cool the cable is formed between the cable and the means for cooling the cable. The invention additionally relates to the use of a system according to the invention.