Standart: VDE 0276/622
Description: Cu / Al conductors • XLPE insulation • Cu screen • LSF sheath
The three-core cables flame retardant with insulation of cross-linked polyethylene (XLPE) are designed for transfer and distribution of electrical power with nominal voltage Uo/U 6/10; 12/20 kV and frequency 50 Hz. The cables are manufactured with sheaths of halogen free flame retardant materials. They are suitable for use in distribution installations, electric power stations and substations for fixed indoor assembly in cable ducts and conduits, over shelves and grilles. They should not be laid directly underground or in water. The cables with halogen free materials are with low halogen free smoke emission and corrosivity. The cables should not be laid in or near nuclear stations.
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Cable construction |
Technical data |
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| Construction | according to DIN VDE 0276-622 | Conductor resistance at 20° C | according to IEC 60228 class 2 and DIN VDE 0295 class 2 |
| Conductor | Сu and Al stranded compacted, wires according to IEC 60228 cl.2 and VDE 0295 cl.2 |
Operating temperature | 90° C continuous operation |
| Inner semi- conductive layer | semi-conductive XLPE compound | Overload temperature | 130° C /100h per year max./ |
| Insulation | XLPE compound | Short circuit temperature | 250° C /5 s max/ |
| Nominal voltage Uo/U: | 6/10 kV; 12/20 kV; | ||
| Outer semi- conductive layer | semi-conductive XLPE compound and semi-conductive tape | Highest system voltage Uo/U, no more than | 6/10 kV; 12/20 kV 12 kV; 24 kV |
| Metal screen | Cu wires concentrically laid and one contact of Cu tape with thickness of 0.1mm or Cu tapes laid with overlap over each phase | Test voltage Uo/U AC (») - 5 min DC (=) - 15 min |
6/10 12/20 kV 21 kV; 42 kV 67 kV; 134 kV |
| Cable assembly | three insulated and screenesd phases are twisted with fillings and tape support | Bending radius, min | 15xD cable |
| Inner sheath | halogen free compound, flame retardant | Temperature of exploitation | -30 to 50° C |
| Temperature of laying | no less than -5° C | ||
| Sheath | halogen free compound, flame retardant | Tests -flame retardant -corrosivity of combustion gases - рН - conductivity -density of smoke gases |
VDE 0276-622 VDE 0276-622(VDE 0472-804 method C) - IEC 332-3/B min 4.3 мах. 100μS/cm VDE 0276-622 method to VDE 0472-816 |
| Color | black | ||