NA2XSY 20/35 kV PH+PC; ABNT NBR 6251; ABNT NBR 7286; Comp. Anti-roedor

Applications

Power distribution in medium voltage. In power plants and electrical substations, industrial and operation installations, in residential areas and mining installations, in dry or wet locations.

Construction

1. Conductor: Compact round 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 + copper tape in open helix.
6. Tape: Polyester tape.
7. Outer sheath: Compound polyvinyl chloride PVC with antirodent compound.

Main characteristics

Excellent properties against heat aging. Resistance to abrasion, moisture and sunlight. Adequate resistance to greases and oils. Flame retardant. Resistance to attack by rodents.

Cross section:
From 240 mm² up to 630 mm².

Packing:
Non returnable wooden reels.

Colour:
Insulation: Natural.

Outer sheath: Black.

Standards

National standards

NTP-IEC 60228: Conductors of insulated cables.

International standards

IEC 60228: Conductors of insulated cables.

ABNT NBR 6251: Insulated power cables, for rated voltages 1 kV up to 35 kV - Constructive requirements.

ABNT NBR 7287: Power cables extruded cross-linked polyethylene insulated power cable for rated voltages from 1 up to 35 kV - Performace requirements.

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.