Application

For middle voltage power distribution in distribution networks (6/10(12);12/20(24)) kV. May be put on on the overhead lines in old and residential areas. Provides a shortcut to electrification without affecting the townscape and its environs. This cables can be strung safely on the same poles with low-voltage and telecommunication cables.

Construction

• Round, stranded and compacted aluminium conductors cl.2, according to MKS N.C0.015

• Semi conducting layer around conductor

• XLPE isolation, XI 1 as per MKS N.C0.195

• Semi conducting layer around isolation

• Semi-conductive swell able tape helicoidally wrapped

• Electric protection: copper wires and tape cross section 16 mm² or 2,5mm²

• Non-conductive swell able tape helicoidally wrapped around the screen

• PE outer sheath for each phase conductor and steel messenger (black), type EP1 as per MKS N.C0.195

• Galvanized steel messenger 50 mm² as per MKS N.C1.702. Mass of zink coated as per MKS.C.B6.051

• Three single-phase cables twisted around a steel messenger as an aerial bundled cable

Technical data

• Operating temperature at:
- nominal load 90°C
- emergency load max. 130°C
- short circuit max. 250°C

• Dielectric factor of losses, 50 Hz, 20°C (0.8-3)x10^-4

• Partial discharge 2pC

• Test voltage (5 min) 2.5UoKV

• Spec. volume insulation resistance, 20°C, min 10¹⁵ Ω x cm

• Intensity of electric field max. 6.9-5.3kV/mm

• Test of water penetration 125x4h, 90°C

• Permitted bending radius min 10 x Ø _kabel

• Permitted temperature during laying, min -5°C

• Breaking load of messenger, min 60kN

• Modulus of elasticity of messenger : 175kN/mm²