A method for manufacturing power cables may include: providing at least one insulated conductor; and/or arranging a water barrier around the at least one insulated conductor. Arranging the water barrier may include: providing foil having opposite edges; wrapping the foil around the at least one insulated conductor until the edges of the foil overlap; fastening the overlapped edges of the foil to each other with bonding agent to form a corresponding foil seam; and/or depositing a metal coating on the foil at the seam by a thermal spray process. A power cable may include: at least one insulated conductor; at least one first water barrier surrounding the at least one insulated conductor, the at least one first water barrier being wrapped foil having edges overlapped and fastened by bonding agent, the overlapped edges and bonding agent forming a foil seam; and/or a thermal sprayed metal coating on the seam.
