N2XSYRAY 18/30 kV; for instalation in vertical drilling mines
Description
Cable for underground power distribution and subtransmission.
Description
Standards
International : IEC 60228; IEC 60332-1-2; IEC 60502-2; IEC 60811-401; IEC 60811-402; IEC 60811-409; IEC 60811-501; IEC 60811-502; IEC 60811-504; IEC 60811-505; IEC 60811-506; IEC 60811-507; IEC 60811-508; IEC 60811-509National : ICEA S-93-639; NTP-IEC 60228; NTP-IEC 60502-2; UL 2556
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; for instalation in vertical drilling mines.
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.
6. Separation sheath: Compound polyvinyl chloride PVC.
7. Armour: 1350 aluminium wires.
8. Tape: Polyester tape.
9. Outer sheath: 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:
240 mm2.
Marking:
INDECO S.A. N2XSYRAY 18/30 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.
IEC 60811-401: Thermal ageing methods. Ageing in an air oven.
IEC 60811-402: Water absorption tests.
IEC 60811-409: Loss of mass test for thermoplastic insulations and sheaths.
IEC 60811-501: Test for determining the mechanical properties.
IEC 60811-502: Shrinkage test for insulations.
IEC 60811-504: Bending test at low temperature for insulation and sheaths.
IEC 60811-505: Elongation at low temperature for insulations and sheaths.
IEC 60811-506: Impact test at low temperature for insulations and sheaths.
IEC 60811-507: Hot set test for cross-linked materials.
IEC 60811-508: Pressure test at high temperature for insulation and sheaths.
IEC 60811-509: Test for resistance of insulations and sheaths to cracking.
ICEA S-93-639: 5-46 kV Shielded Power Cable for Use in the Transmission and Distribution of Electric Energy. Section 9.4.2: Oil Immersion Test.
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 | PVC |
| Sheath colour | Red |
| Lead free | Yes |
| Electrical characteristics | |
| Rated Voltage Uo/U (Um) | 18/30 kV |
| Dielectric strength core to screen DC, min. | 63.0kV |
| Time of application Dielectric strength core to screen DC | 5min. |
| Voltage for partial discharge test | 31.1kV |
| Maximal partial discharge test | 10pC |
| Impulse voltage | 170kV |
| 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 | ICEA S-93-639 |
| Maximum operating temperature | 90°C |
| Overload maximum core temperature | 130°C |
| Short-circuit max. conductor temperature | 250°C |
| Specific characteristics | |
| See all products | |
| |
Products and services
Docs and info
Armor Conformation
|
Ref. Nexans |
Cross section |
Armor |
|
|
Nb. Wires |
Wire diameter (mm) |
||
|
P00030154-0 |
240 |
62 |
3.15 |
Conditions for installation in vertical drilling mines M.V.
|
Ref. Nexans |
Section(mm2) |
Length (m) |
S.F |
|
P00030154-0 |
240 |
350 |
4 |
-
BENDING RADIUS INSTALLED IN M.V
R=Dxf
R: Bending radius when installed (mm)
D: Diameter over sheath (mm)
f: Multiplicative factor; given the following table:
-
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.
