Description
Standards
International : FT4 IEEE1202 ; IEC 60228; IEC 60332-1-2; IEC 60502-2; IEC 60754-1; UIC 895National : NTP-IEC 60228; NTP-IEC 60502-2; UL 2556; UL 44
Description
Application:
Power distribution in medium voltage. 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.
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 in Dry cure process.
5. Screen: Copper tapes (longitudinally watertight under and over the screen).
6. Separation sheath: Anti-flame compound polyvinyl chloride PVC.
7. Armour: 1350 aluminium wires.
8. Tape: Polyester tape.
9. Outer sheath: Anti-flame compound polyvinyl chloride PVC.
Main characteristics:
Excellent properties against heat aging. Its armour provides additional mechanical protection. Resistance to abrasion, moisture and sunlight. Adequate resitance to greases and oils. Flame retardant.
Cross section:
Form 70 mm2 up to 630 mm2.
Marking:
INDECO S.A. N2XSYRAY 6/10 kV - Section - Year - Sequential length.
Packing:
Non returnable wooden reels.
Colour:
Insulation: Natural.
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 60502-2: Power cables with extruded insulation and their accessories for rated voltages from 6 kV up to 30 kV.
IEC 60332-1-2: Test for vertical flame propagation for a single insulated wire or cable - Procedure for 1 kW pre-mixed flame.
UL 2556: Wire and Cable Test Methods. Section 9.3: FT1 (Vertical-Specimen) Flame Test.
FT4/IEEE 1202: Vertical Tray Flame Test.
IEC 60754-1: Test on gases evolved during combustion of materials from cables - Part 1: Determination of the halogen acid gas content.
SAE J1127: Standard for Vehicle Cables. Battery cable Clause 6.7 (Compatibility of fluids) - Resistance to Sulfuric Acid.
UL 44: Thermoset-Insulated Wires and Cables. Section 5.17: Gasoline and oil resistance.
UIC 895 OR: Technical specifications for the supply of insulated electric cables for railway vehicles - Oil resistance.
UL 2556:Wire and Cable Test Methods. Section 4.2.8.5:Carbon-Arc and Xenon-Arc Tests- Sunlight resistance.
Characteristics
| Construction characteristics | |
|---|---|
| Conductor material | Soft copper |
| Material of the inner semi-conductor | Extruded |
| Insulating material | XLPE-TR |
| Material of the external semi-conductor | Extruded strippable |
| Screen | Copper tape, helically |
| Armour type | Aluminium Wire |
| Outer sheath | Flame retardant PVC |
| Sheath colour | Red |
| Electrical characteristics | |
| Dielectric strength core to screen DC, min. | 21.0kV |
| Time of application Dielectric strength core to screen DC | 5min. |
| Voltage for partial discharge test | 10.4kV |
| Maximal partial discharge test | 10pC |
| Impulse voltage | 75kV |
| Mechanical characteristics | |
| Mechanical resistance to impacts | Good |
| Usage characteristics | |
| U.V resistance | UL 2556 - Sunlight Resistance |
| Flame retardant | IEC 60332-1-2; FT1 |
| Oil resistance | UIC 895 OR |
| Maximum operating temperature | 90°C |
| Overload maximum core temperature | 130°C |
| Short-circuit max. conductor temperature | 250°C |
| Longitudinal water tightness | Yes |
| Fire retardant | FT4/IEEE 1202 |
| Slightly halogenous | IEC 60754-1 |
| Specific characteristics | |
| See all products | |
| |
Products and services
Docs and info
Armour conformation
|
Nexans Ref. |
Cross section |
Armour |
|
|
Nb. Wires |
Wire diameter (mm) |
||
|
P00029737-0 |
70 |
39 |
1,6 |
|
P00029682-0 |
240 |
34 |
2,5 |
|
P00029681-0 |
300 |
36 |
2,5 |
|
P00029680-0 |
400 |
38 |
2,5 |
|
P00029679-0 |
630 |
36 |
3,15 |
-
Calculation of Current Condition Single-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.
Screens bonded at both ends.
