Abstract: A flexible power cable includes a plurality of power conductors each having insulation thereon and being arranged to form interstices between adjacent ones of the power conductors. Each of the power conductors includes a plurality of conductor strands. An insulated grounding conductor is provided in each interstice and together with the power conductors define a conductor bundle. An inner jacket surrounds the conductor bundle. A flexible, braided sheath member surrounds the inner jacket and is constructed and arranged to limit transmission and susceptibility to electromagnetic and radio frequency interference. An outer polymeric jacket surrounds the braided sheath member. The insulation of the power conductors and of the grounding conductors is lubricated so that the power conductors and the grounding conductors may move relative to each other and with respect to the inner jacket upon flexing of the cable.