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; SAE J-1127; 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.
Construction
1. Conductor: Compact stranded aluminium 1350, 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 wires.
6. Tape: Polyester tape.
7. Outer sheath: Anti-flame compound polyvinyl chloride PVC.
Main characteristics
Excellent properties against heat aging. Resistance to abrasion, moisture and sunlight. Resistance to liquid fuels and oils according to UIC 895 OR. Resistance to sulfuric acid according to SAE J1127. Low halogen content according to IEC 60754-1. Resistant to gasoline GR I according to UL 44. Fire retardant according to IEEE 1202/FT-4.
Cross section:
From 95 mm2 up to 400 mm2.
Marking:
INDECO S.A. FREETOX NA2XSOH 19/33 kV - Section - PH (Screen section) - Year - Sequential length.
Packing:
Non returnable wooden reels.
Colour:
Insulation: Natural.
Outer sheath: Black.
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 | Aluminum Alloy 1350 |
| Material of the inner semi-conductor | Extruded |
| Insulating material | XLPE-TR |
| Material of the external semi-conductor | Extruded strippable |
| Screen | Copper wires |
| Outer sheath | Flame retardant PVC |
| Sheath colour | Black - UV |
| Electrical characteristics | |
| Rated Voltage Uo/U (Um) | 19/33 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 | 29.0kV |
| Maximal partial discharge test | 5pC |
| Impulse voltage | 200kV |
| Usage characteristics | |
| Slightly halogenous | IEC 60754-1 |
| U.V resistance | UL 2556 - Sunlight Resistance |
| Flame retardant | IEC 60332-1-2; FT1 |
| Fire retardant | FT4/IEEE 1202 |
| Oil resistance | UIC 895 OR |
| Fuel resistance | GR I - UL44 |
| 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
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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.
