Patent ID: 8487186

Claim:
A flat power cable comprising: two or more cores of which at least two of said cores comprise a power transmissive insulated element and a protective sheath disposed in a radially external position with respect to said power transmissive insulated element, said cores being disposed on a common transversal axis; an outer armour containing said cores; and inside said armour, adjacent cores and an internal surface of said armour delimiting interstitial spaces, wherein said flat cable comprises swellable fillers disposed in said interstitial spaces, wherein, in a transversal section of said cable, each of said swellable fillers in an unswelled configuration has a cross section area smaller than a cross section area of the respective interstitial space, and wherein in a swelled configuration, each of said swellable fillers fills the respective interstitial space and urges against the outer armour and the cores such that the cable is constrained in the flat configuration.