A power cable assembly device and a power cable provided with such a device

A power cable assembly device adapted to be arranged in the spaces between neighbouring power cores of a power cable, comprises an extruded profiled body (4) made of a polymer material and adapted to the cross-sectional shape and elongation of the power cable, said profiled body (4) comprising a first wall (6), a second wall (8) and a third wall (10), said first wall (6) being convex and having first and second opposite end portions (6a, 6b), the first wall (6) having an exterior surface (102) adapted to face a jacket of the power cable,said profiled body further comprising a chamber wall (18) extending from said second wall (8) to said third wall (10), said chamber wall (18) having an interior surface (100) defining a chamber (16), said profiled body (4) defining a slit (15) between said second wall (8) and said third wall (10) to said chamber(16), said chamber (16) being adapted to receive a fibre optic cable (30) via said slit (15). According to the invention, at least a portion of said interior surface (100) and at least a portion of said exterior surface (102) is provided with a semi-conductive material (21), respectively, said interior surface (100) and said exterior surface (102) being electrically interconnected by said semi-conductive material (21).