Page 59: of Marine Technology Magazine (June 2015)

tors was originally developed to pro- vide all the features of the ALL-WET connector range, but in a miniature

In-situ Subsea Cable Repair industry standard con? guration. Split series enables multiple connectors from multiple instruments to be connected to a single bulkhead connector. The prod- uct is wet mateable and is available in six con? gurations ranging from six to 16 contacts. Key features include up to 10,000 psig (approx. 22,500ft/7,000m) mated, up to 600 VDC amd up to 19 amps max current. Typical uses are diver comms, UWTV, lights and ROVs.

www.seaconworldwide.com (Photo: N-Sea) specialist N-Sea used a wet repair habitat to complete an in-situ subsea cable repair. The habitat was developed by

IMR Moyle Interconnector Ltd. as part of the seabed repair proj- ect, with ESB International the owner’s engineer for the project. The habitat al- lows repairs to be implemented in-situ below sea level, as opposed to the conven-

Seacon tional method of recovering the subsea cable prior to repair. The diving scope was performed as part of a Moyle Interconnector project to carry out the repair on the

Moyle Interconnector cable, a 500MW HVDC electrical interconnector, in the

Seacon’s

Irish Sea. The interconnector cable links the electricity grids of Northern Ireland and Great Britain through submarine cables running between converter stations at

Hydralight

Ballycronan More in Islandmagee, County Antrim and Auchencrosh in Ayrshire.

The HYDRALIGHT is a second gen-

The fault area was located approximately 2.5km from the Scottish coast and sub- eration underwater mateable, high in- merged between one and three meters below the seabed, in approximately 25 tegrity, ? ber optic connector. This 8 meters of water. Explaining the technology and design behind the product, CEO channel, oil ? lled pressure balanced

Gerard Keser (pictured above) said, “The principle employed by ESB Interna- connector is fully quali? ed to 7,000m, tional is based on an incubator design which surrounds the cable section whilst with an average single mode insertion providing a dry and conditioned repair option. We deployed our TUP Diving loss of less that .2dB and a average

System (Transfer Under Pressure) along with one of our subsea support vessels, single mode back re? ection of -50 dB. the Siem N-Sea, which allowed the cable to be repaired in its current position.”

With a design life of 30 years and a life www.n-sea.com cycle of a minimum of 100 mate/de- mates, this connector meets the follow- ing speci? cations: Norsk Hydro NHT- www.marinetechnologynews.com

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