Description
Standards
International : IEC 60228; IEC 60332-1; IEC 60502-2; IEC 60811-1-1; IEC 60811-1-2; IEC 60811-1-3; IEC 60811-1-4; IEC 60811-2-1National : NTP-IEC 60228; NTP-IEC 60502-2; UL 1581
Description
Application:
Underground power distribution and subtransmission. As transformer feeders in substations. In power plants, industrial and operation installations, in residential areas and mining installations, in dry or wet locations; where mechanical strength is required.
Construction:
1. Conductor: Compact stranded soft copper, class 2 (longitudinally watertight between and over conductor).
2. Inner semi-conductor: Extruded.
3. Insulation: Cross linked polyethylene XLPE-TR (Tree retardant).
4. External semi-conductor: Extruded strippable.
These last three components extruded CV (continuous vulcanization) triple extrusion.
5. Screen: Copper tapes.
6. Separation sheath: Compound polyvinyl chloride PVC.
7. Armour: Galvanized steel wires.
8. Tape: Polyester tape.
9. Outer sheath: Compound polyvinyl chloride PVC.
Main characteristics:
Conductor temperature of 90°C for normal operation, 130°C for emergency overload and 250°C for short circuit conditions. Excellent properties against heat aging. Its armour provides additional mechanical protection. Resistance to abrasion, sunlight and moisture. Adequate resitance to greases and oils. Flame retardant.
Cross section:
70 mm2.
Marking:
INDECO S.A. N2XSEYRY(OL) 8.7/15 kV - Nb. cores x section - Year.
Packing:
Non returnable wooden reels.
Colour:
Insulation: Natural (Core identification with binder tapes: white, black, red).
Outer sheath: Red.
National standards
NTP-IEC 60228: Conductors of insulated cables.
NTP-IEC 60502-2: Power cables with extruded insulation and their accessories for rated voltages from 6 kV up to 30 kV.
International standards
IEC 60228: Conductors of insulated cables.
IEC 60332-1: Test for vertical flame propagation for a single insulated wire or cable.
IEC 60502-2: Power cables with extruded insulation and their accessories for rated voltages from 6 kV up to 30 kV.
IEC 60811-1-1: Measurement of thickness and overall dimensions - Test for determining the mechanical properties.
IEC 60811-1-2: Thermal ageing methods.
IEC 60811-1-3: Water absorption tests - Shrinkage test.
IEC 60811-1-4: Tests at low temperature.
IEC 60811-2-1: Ozone resistance, hot set and mineral oil immersion tests.
UL 1581 Section 1200 (Sunlight resistance): Reference standard for electrical wires, cables, and flexible cords - Carbon-Arc and Xenon-Arc Tests- Sunlight resistance.
Characteristics
| Construction characteristics | |
|---|---|
| Conductor material | Copper |
| Material of the inner semi-conductor | Extruded |
| Insulating material | XLPE |
| Material of the external semi-conductor | Extruded strippable |
| Individual screen | Copper tapes helically applied |
| Armour type | Galvanized steel wires |
| Outer sheath | PVC |
| Sheath colour | Red |
| Electrical characteristics | |
| Rated Voltage Uo/U (Um) | 8.7/15 kV |
| Mechanical characteristics | |
| Mechanical resistance to impacts | Good |
| Usage characteristics | |
| U.V resistance | UL 1581 - Sunlight Resistance |
| Longitudinal water tightness | Yes |
| Flame retardant | IEC 60332-1 |
| Oil resistance | Good |
| Max. conductor temperature in service | 90°C |
| Specific characteristics | |
| See all products | |
| |
Products and services
Docs and info
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Calculation of Current Condition Multi-core M.V.
CALCULATION OF CURRENT CONDITION BASED ON NTP-IEC 60502-2 Annex B
Maximum conductor temperature: 90°C.
Ambient air temperature: 30°C.
Ground temperature: 20°C.
Depth of laying: 0,8 m.
Thermal resistivity of soil: 1,5 K.m/W.
