An electrical cable suitable for forming a Barrier against the penetration of water and blocking method of longitudinal Flow of water.

摘要

It is a Power cable, in particular for the transmission or distribution of Energy of Middle or High Voltage, which comprises a metal Protection Layer and a Hydro - Expandable capable of forming a Barrier against the penetration of water provided at a position radially and Xterna on the metal Protection.The Hydro expanding layer is made of an expanded polymeric material which incorporates a Hydro - Expandable material, preferably in powder form.