Scope of Work
Categories:
Submarine Cable Manufacture
Lifecycle Stages:
Construction
Quantities:254 km submarine cable (interconnector)
Cable Specifications:
TypeHVDC
Purposeinterconnector
Voltage250 kV
Route Length127 km
Source text:
Submarine HVDC cable system for Skagerrak 1 & 2 between Kristiansand (NO) and Tjele (DK), two parallel mass‑impregnated cables, approx. 127 km underwater route at 250 kV and 250 MW per pole.
Contract Details
Description
Alcatel manufactured the original high-voltage direct current (HVDC) submarine power cables for the Skagerrak 1 and 2 interconnector between Kristiansand in Norway and Tjele in Denmark. Commissioned in 1977 as a 250 kV bipolar HVDC link rated at 500 MW, Skagerrak 1 and 2 used two parallel mass‑impregnated subsea cables that, at the time of installation, were the world’s longest and deepest HVDC submarine power cables, laid at depths of up to around 530 metres in the Skagerrak Strait. Alcatel supplied approximately 254 km of subsea cable for the underwater section, forming the backbone of the cross‑border transmission capability between the Norwegian hydro-based system and the Danish grid.