Standart: IEC 60 502-1
Description: Cu/Al conductors • XLPE insulation • PVC inner sheath • Armour St. wires • PVC sheath
These cables are designed for transfer and distribution of electrical power with nominal voltage U 0 / U 0 6/1 kV, frequency 50Hz and surroundings, which require non-proliferation of flames. 2XYRYfr and A2XYRYfr is used in power plants, industrial and switching installations, for street lighting, domestic power supply connections, in secondary distribution networks and other.These cables are preferentially used for underground application as well as for interior installation in room and cableducts and for outdoor and applications, for indoor installations, where greater mechanical protection an protection against accidental contact is required if damaged.
|
Cable construction |
Technical data |
||
| Construction | According to IEC 60502-1 | Conductor resistance at 20° C | According class 1 or 2 IEC 60228 |
| Conductor | solid or multi-strand Al or Cu wires class 1 or 2 acc. IEC 60228 | Max. conductor temperature | 90° C continuous operation |
| Insulation | XLPE compaund | Overload temperature | 130° C /100h/per year мах./ |
| Color | Double core -light blue and brow or yellow-green and black 3 – core – brown, black, grey or yellow/green, light blue, brown 4 – core light blue, brown, black, grey or yellow/green, brown, black, grey 5 – core light blue, brown, black, grey black or yellow/green, light blue, brown black, grey Multiple core - Black with numbered pair in each cover |
Short circuit temperature | 250° C /5 s max./ |
| Nominal voltage Uo/U | 0.6/1 kV | ||
| Highest system voltage | 1.2 kV | ||
| Inner sheath | PVC flame retardant, degree of flame retardancy | Test voltage AC – 5 min. | between cores - 3.5 кV between core and screen – 3.5 кV |
| Bending radius, min. | 15x D cable | ||
| Armour | galvanized iron wires twisted concentrically | Temperature of laying | no less than 0° C |
| Sheath | PVC flame retardant, degree of flame retardancy | Temperature of exploitation | 30 to 50° C |
| Color | Black | Flame retardancy | IEC 60 332-3 Category A |