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Standart: NBN C 33-323

Description: Cu / Al conductors • XLPE insulation • Cu screen • PVC sheath

Application:

The single-core cables with insulation of cross-linked polyethylene (XLPE) and longitudinal water-blocking elements, are designed for transfer and distribution of electrical power with nominal voltage Uo/U U 8.7/15kV , 12/20kV, и 20.8/36 kV and frequency 50 Hz in urban and district electrical networks and for electrical supply of transformer’s substations, small and medium industrial plants. 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 NBN C 33-323 Conductor resistance According to IEC60228 class 2 (NBN C 30-228)
Conductor Сu and Al stranded compacted, according to IEC 60228-2 (NBN C 30-228 Operating temperature 90° C continuous operation
Short circuit temperature 250° C ( 5 sec.)
Inner semi- conductive layer semi-conductive XLPE compound Overload temperature 120° C /100h per year max./
Insulation XLPE compound
 Outer semi- conductive layer semi-conductive XLPE compound Nominal voltage Uo/U 8.7/15; 12/20; 20,8/36 kV
Highest system voltage Uo/U, no more than 8.7/15; 12/20; 20.8/36 kV
17.5 kV; 24 kV; 41.5kV
Water resisting element Layer of semi-conductive water absorbing tapes Test voltage
AC (») - 5 min		 8.7/15; 12/20; 20.8/36 kV
35 kV; 48 kV; 83 kV
Metal screen Cu wires concentrically laid and one contact of Cu tape with thickness of 0.1mm. Bending radius
15 x Dcable
Water resisting element water absorbing insulating tape Level of partial discharge at 2*Uo max. 5 pC
Sheath PVC compound Temperature of laying no less than -15° C
Color Red Temperature of exploitation -30° C to 50° C
Tests according to NBN C 33 323
Force of strain in laying N max Al cores - 30*n*S core
Cu cores - 50*n*S core
where N is number of cores and S is cross section of cores in mm

 

 

 

 

 

 

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