Medium voltage single core cable 6/10 kV, 12/20 kV, 18/30 kV, XLPE insulated, PVC sheathed, with screen of Cu conductors

Application

Medium voltage power cable for static application in ground, within and outside facilities, outdoor, in cable canals, in water, in conditions where cables are not exposed to heavier mechanical stress and tensile strain. Due to its very low factor of dielectric loss, which remains constant over its entire operating lifetime, and owing to excellent insulation property of XLPE-material, firmly longitudinally spliced with inner and external screen of semi-conductive material (extruded in one process), the cable has a high operating reliability. Used in transformer stations, switching blocks, in electric power plants and industrial plants. To avoid the effects of external impact, the adhering semi-conductive layer extruded between conductor and insulation, along with concentric copper conductor, secures restriction of electric field and resistance to partial discharges.

Standards

HRN HD 620 S1
IEC 60502-2
DIN VDE 0276 part 620

Construction

Conductor: Cu round conductor, multi wire stranded compacted (RM), class 2 acc. to HRN HD 383 / IEC 60228 / DIN VDE 0295
Inner screen: extruded semi-conductive skin on conductor
Insulation: XLPE (cross-linked polyethylene, recent mark: PE-X) compound DIX 8 acc. to HRN HD 620 S1
External screen: extruded semi-conductive skin on insulation, longitudinally spliced with insulation (+ tape of conductive material)
Concentric conductor: in inner layer corrugated spirally wrapped copper wires, in external layer copper tape wrapped in counter-helix
Separating tape
Sheath: PVC compound DMV-6 acc. to HRN HD 620 S1
sheath colour: red

Technical data

Temperature range:
during installation: -5 °C up to +70 °C
max. operating temp.: +90 °C
at short circuit of max. 5 s: up to 250 °C
Minimal inner bending radius: 15D