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Standart: IEC 60 502-2

Description: Cu / Al conductors • XLPE insulation • Cu screen • Armour st. tapes • PVC sheath flame retardant

Application:

The three-core cables with insulation of cross-linked polyethylene (XLPE) are designed for transfer and distribution of electrical power with nominal voltage Uo/U 6/10 and frequency 50 Hz in urban and district electrical networks and for electrical supply of transformer’s substations, small and medium industrial plants. The cables are manufactured with sheaths of flame retardant materials. They are suitable for use in distribution installations, electric power stations and industrial systems. The cables are for fixed assembly in lines with unlimited difference levels, indoor installations, in cable ducts, conduits and shafts, over shelves and grills directly underground in ditch and outdoor shelter.

Features:

 

 

Cable construction

Technical data

Construction According to  IEC 60502-2 Conductor resistance at 20° C According to IEC60228
Conductor Сu and Al stranded compacted wiresto IEC 60228 cl.2 Operating temperature 90° C continuous operation
Short circuit temperature 250° C ( 5 sec.)
Inner semi- conductive layer semi-conductive XLPE compound Overload temperature 130° C /100h per year max./
Insulation XLPE compound
Outer semi- conductive layer semi-conductive XLPE compound and semi-conductive tape Nominal voltage Uo/U 6/10 k
Highest system voltage Uo/U, no more than 6/10 kV
12 kV
Test voltage
AC (») - 5 min
DC (=) - 15 min
6/10 kV
21 kV
67 kV   
Metal screen over each phase Metal screen -I option - Cu tapes
laid with overlap over each phase
-II option - Cu wires laid concentrically
Bending radius 15 x Dcable
Cable assembly Three insulated and screened phases are twisted with fillings and tape support Temperature of laying no less than -5° C
Inner sheath I –option - exstruded PVC compound flame retardant - kat A
II-option - exstruded PVC compound - kat B and C, two steel tapes
Level of partial discharge at 2*Uo max. 5 pC
Sheath PVC compound flame retardant Temperature of exploitation -30° C to 50° C
Color black or red Tests
-flame retardant
according to IEC 60502-2
IEC 602332-3 Kat A - 7l/m Kat B(3.5l/m)and C(1.5l/m)