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FR-N20XA8E-AR 12/20kV Cable Gen to NF C 33-226 - AL/XLPE/MDPE
FR-N20XA8E-AR 12/20kV Cable Gen to NF C 33-226 - AL/XLPE/MDPE

FR-N20XA8E-AR 12/20kV Cable Gen to NF C 33-226 - AL/XLPE/MDPE

The NF C 33-226 AL-XLPE-MDPE 12/20(24)kV Cable is a high-quality medium voltage power cable designed for safe and efficient fixed installations. Constructed with a Class 2 stranded aluminum conductor, cross-linked polyethylene (XLPE) insulation, and a medium-density polyethylene (MDPE) outer sheath, it offers outstanding electrical performance, mechanical strength, and long service life. Complying with NF C 33-226, IEC 60502-2, and EN 60228 standards, this cable is ideal for industrial facilities, municipal networks, and commercial power supply systems. It provides superior resistance to water (AD7) and UV radiation (ISO 4892), while being halogen-free (IEC/EN 60754-1) for enhanced environmental and operational safety. With a rated voltage of 12/20 (24)kV and a maximum conductor operating temperature of 90°C, the AL-XLPE-MDPE construction ensures reliable, stable, and efficient power transmission in medium-voltage distribution networks.
Voltage Rating(Uo/U) 12/20 (24)kV
Maximum operating temp 90°C
Initial temp at S.C.C 80°C
Maximum temp during S.C 250°C
Minimum Bending Radius 20 x overall diameter
Construction
Technical Specifications
Quality Control
Application

Construction

FR-N20XA8E-AR 12/20kV Cable Constrution
FR-N20XA8E-AR 12/20kV Cable Constrution

Conductor

Class 2 stranded Aluminium

Conductor Screen

Extruded Inner Semi Conductor (Bonded Type)

Insulation

XLPE (Cross-Linked Polyethylene)

Insulation Screen

Extruded Inner Semi Conductor (Strippable Type)

Waterblocking

Semi Conductive Longitudinal Waterblocking Tape

Aluminium Tape

Applied Longitudinally

Sheath

MDPE (Medium Density Polyethylene)

Sheath Colour

Black

Manufacturer Standard

NF C 33-226, IEC 60502-2, EN 60228

Halogen free

IEC/EN 60754-1

Water resistant

AD7

UV resistant

ISO 4892

Technical Specifications

FR-N20XA8E-AR 12/20kV Cable Gen to NF C 33-226 - AL/XLPE/MDPE
FR-N20XA8E-AR 12/20kV Cable Data Sheet

No. of

Cores

Nominal Corss

Sectional Area

Nominal Screen Cross

Sectional Area

Nominal Conductor

Screen Thickness

Nominal Insulation

Screen Thickness

Nominal Sheath

Thickness

Nominal

Weight

  mm² mm² mm mm mm kg/km
1 50 15 0.6 0.7 1.7 614
1 70 17 0.6 0.7 1.8 731
1 95 18 0.6 0.7 1.8 833
1 120 19 0.6 0.7 1.9 953
1 150 20 0.6 0.7 1.9 1090
1 185 21 0.6 0.7 2 1212
1 240 22 0.6 0.7 2.1 1440
1 300 24 0.6 0.7 2.1 1674
1 400 26 0.6 0.7 2.3 2027
1 500 28 0.6 0.7 2.4 2411
1 630 31 0.7 0.7 2.5 3010
1 800 34 0.7 0.7 2.6 3718

Quality Control

FR-N20XA8E-AR 12/20kV Cable Gen to NF C 33-226 - AL/XLPE/MDPE
Raw Material Test

Raw Material Test

Raw Material Test for FR-N20XA8E-AR Triplex 12/20kV Cable ensures NF C 33-226 compliance and MV reliability. The rigorous process includes: Supplier Certification Review: Verify stranded aluminium conductors meet NF C 33-226/IEC 60228 class 2 for purity, stranding, and conductivity; XLPE insulation compound certified to IEC 60502-2 for electrical/thermal properties; MDPE sheath compound certified for mechanical and environmental resistance. Conductor Analysis: Test aluminium for tensile strength (>80 MPa), elongation (>10–15%), conductivity (≥61% IACS), and surface quality (no oxidation/cracks). Semi-Conductive Compound Testing: Semi-conductive conductor and insulation screens evaluated for resistivity (≤1000 Ω·m), adhesion, thermal stability, and compatibility to ensure uniform electric field distribution.

Process inspection

Process inspection

Process Inspection during manufacturing of FR-N20XA8E-AR Triplex 12/20kV Cable maintains triplex precision and MV integrity. Steps include: Conductor Stranding: Monitor class 2 stranding for uniform lay length, compactness, and no loose strands. Triple Extrusion: Apply semi-conductive conductor screen, XLPE insulation, and semi-conductive insulation screen in continuous triple extrusion; inline diameter scanners, eccentricity monitors, and spark testers detect voids/defects. Screening Application: Apply copper wire screen with precise coverage for grounding.Triplex Assembly: Twist three insulated cores with controlled lay length for triplex configuration. Outer Sheath Extrusion: Extrude MDPE sheath; real-time checks on thickness, surface finish, adhesion, and sheath integrity.

Finished Product

Finished Product

Finished Product Test confirms the FR-N20XA8E-AR Triplex 12/20kV Cable meets NF C 33-226 standards before shipment. The procedure includes: Visual & Dimensional Inspection: Examine full length for defects, uniformity, markings, and measure outer diameter/weight per meter. Electrical Tests: DC resistance, insulation resistance (>1000 MΩ·km), high-voltage withstand (e.g., 42kV/5 min or per NF C 33-226), partial discharge (<5 pC), and screen continuity. Mechanical Evaluation: Bending radius (15–20× OD), tensile strength, crush resistance, and impact tests. Sheath & Insulation Performance: Thermal aging (135°C/168h), hot set test, environmental stress cracking resistance (ESCR), UV aging, and moisture resistance verified. Thermal & Short-Circuit Validation: Confirm ampacity ratings and short-circuit withstand at 250°C for 1 s.

Application

The FR-N20XA8E-AR Triplex 12/20kV Cable is perfect for 12/20 kV overhead aerial bundled lines, underground MV distribution, rural/urban electrification, substation feeders, renewable energy connections, and harsh environment installations requiring NF C 33-226 compliant, XLPE-insulated, MDPE-sheathed triplex cable with high mechanical and electrical performance.

Technical Advantages

● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions

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FAQ From Customers

What are the advantages of power cables and overhead lines?
(1) Reliable operation, because it is installed in a hidden place such as underground, it is less damaged by external forces, has less chance of failure, and the power supply is safe, and it will not cause harm to people;
(2) The maintenance workload is small and frequent inspections are not required;
(3) No need to erect towers;
(4) Help improve power factor.
Which aspects should be considered when choosing the cross section of a power cable?
(1) The long-term allowable working current of the cable;
(2) Thermal stability once short circuited;
(3) The voltage drop on the line cannot exceed the allowable working range.
What are the measures for cable fire prevention?
(1) Use flame-retardant cables;
(2) Use fireproof cable tray;
(3) Use fireproof paint;
(4) Fire partition walls and fire baffles are installed at cable tunnels, mezzanine exits, etc.;
(5) Overhead cables should avoid oil pipelines and explosion-proof doors, otherwise local pipes or heat insulation and fire prevention measures should be taken.
What should be paid attention to during the transportation and handling of cables?
(1) During transportation, loading and unloading, cables and cable reels should not be damaged. It is strictly forbidden to push the cable reels directly from the vehicle. Generally, cables should not be transported and stored flat.
(2) Before transporting or rolling the cable reel, ensure that the cable reel is firm, the cable is wound tightly, the oil pipe between the oil-filled cable and the pressure oil tank should be fixed without damage, the pressure oil tank should be firm, and the pressure indication should meet the requirements.
What inspections should be carried out for the acceptance of cable lines?
(1) The cable specifications should meet the regulations, the arrangement should be neat, no damage, and the signs should be complete, correct and clear;
(2) The fixed bending radius of the cable, the related distance and the wiring of the metal sheath of the single-core power cable should meet the requirements;
(3) The cable terminal and the middle head should not leak oil, and the installation should be firm. The oil pressure of the oil-filled cable and the meter setting should meet the requirements;
(4) Good grounding;
(5) The color of the cable terminal is correct, and the metal parts such as the bracket are completely painted;
(6) There should be no debris in the cable trench, tunnel, and bridge, and the cover should be complete.

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