An improved method and apparatus for providing bend limits and cable protection on medium to large diameter (approx. 30 mm-300 mm) seismic towed arrays, umbilicals as well as medium and high voltage power and/or communications subsea cables. These medium to high voltage cables are typically used on stationary and floating wind turbines and other offshore platforms such as used by the oil and gas industries. This system is an improvement over existing designs and techniques commonly used for this bend limiting purpose.

In order to suppress landing construction, these landing cables, which are installed offshore from a cable landing position, are each provided with: an initially used optical fiber that is used from the initial start of communication by the landing cable; and a preliminary optical fiber which is a preliminary optical fiber in addition to the initially used power feed line used from the initial start, wherein the preliminary optical fiber is connected from a cable landing position side terminal point to boundary points between the cable landing position side terminal point and a cable interval that does not include the preliminary optical fiber, and the terminal point of the preliminary optical fiber, which is the terminal point of the preliminary optical fiber in the boundary points, is held in a state of being usable in the future.

In order to suppress landing construction, these landing cables, which are installed offshore from a cable landing position, are each provided with: an initially used optical fiber that is used from the initial start of communication by the landing cable; and a preliminary optical fiber which is a preliminary optical fiber in addition to the initially used power feed line used from the initial start, wherein the preliminary optical fiber is connected from a cable landing position side terminal point to boundary points between the cable landing position side terminal point and a cable interval that does not include the preliminary optical fiber, and the terminal point of the preliminary optical fiber, which is the terminal point of the preliminary optical fiber in the boundary points, is held in a state of being usable in the future.

An aluminium based conductor made of an alloy has at least 98 wt % aluminium, from 0.25 to 0.45 wt % iron, from 0.07 to 0.25 wt % copper and from 0.001 to 0.10 wt % boron, having high strength and conductivity. The present arrangement also includes a method for obtaining such conductors.

An aluminium based conductor made of an alloy has at least 98 wt % aluminium, from 0.25 to 0.45 wt % iron, from 0.07 to 0.25 wt % copper and from 0.001 to 0.10 wt % boron, having high strength and conductivity. The present arrangement also includes a method for obtaining such conductors.

A class of electrical connectors are described along with methods of manufacturing the same. In one example embodiment, a method of assembling a connector includes extending a twisted pair through a slot in a seal plate; untwisting the twisted pair along a first distance; inserting first and second conductors of the twisted pair through first and second through holes of a seal carrier; coupling first and second electrical terminals to the first and second conductors; re-twisting the twisted pair along a portion of the first distance by rotating the seal carrier; and inserting the seal carrier into the slot of the seal plate.

A class of electrical connectors are described along with methods of manufacturing the same. In one example embodiment, a method of assembling a connector includes extending a twisted pair through a slot in a seal plate; untwisting the twisted pair along a first distance; inserting first and second conductors of the twisted pair through first and second through holes of a seal carrier; coupling first and second electrical terminals to the first and second conductors; re-twisting the twisted pair along a portion of the first distance by rotating the seal carrier; and inserting the seal carrier into the slot of the seal plate.

A modular, deployable marine power cable manufacturing system and method for using the same. The system can include an inlet spooling module configured to receive a plurality of baskets and/or reels, each basket and/or reel of the plurality of baskets and/or reels can contain an elongated element. The system can include a gathering module comprising a matrix plate and a mandrel configured to gather the elongated elements into a bundle, a winding module comprising a static plate and a revolving plate configured to twist the bundle in an alternating helical configuration, a banding machine configured wrap a band or tape around the bundle and a caterpillar tractor configured to pull the bundle along the longitudinal axis. The inlet spooling module, the gathering module, the winding machine, the banding machine, and the caterpillar tractor can be configured to be disposed on a plurality of deployable modules.

A modular, deployable marine power cable manufacturing system and method for using the same. The system can include an inlet spooling module configured to receive a plurality of baskets and/or reels, each basket and/or reel of the plurality of baskets and/or reels can contain an elongated element. The system can include a gathering module comprising a matrix plate and a mandrel configured to gather the elongated elements into a bundle, a winding module comprising a static plate and a revolving plate configured to twist the bundle in an alternating helical configuration, a banding machine configured wrap a band or tape around the bundle and a caterpillar tractor configured to pull the bundle along the longitudinal axis. The inlet spooling module, the gathering module, the winding machine, the banding machine, and the caterpillar tractor can be configured to be disposed on a plurality of deployable modules.

A power cable has a cable core comprising at least one conductor with an insulating system and a water barrier surrounding the cable core. The water barrier comprises a helically wound strength bearing layer interconnected by a low melting point material.