Estlink 2, the larger of the two undersea cables connecting the Estonian and Finnish power systems, will be down for planned maintenance from October 12 to October 21.
Elering, the electricity grid operator, has announced that in co-operation with the cable supplier Nexans Norway, they have found a solution to the problem that caused disruptions in August and September.
The changing of the current failure-prone joints against more water-resistance ones will be undertaken by four specialist units from Nexans Norway, who will work simultaneously to ensure a minimum period of disruption.
The works are planned in a way that would allow the changing of the joints to be stopped and the connection to be resumed within 24 hours if such need arises.
Repairs are covered by the warranty.