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FR-N30XA8E-AR Triplex 18/30kV Cable Gen to NF C 33-226 - AL/XLPE/MDPE
FR-N30XA8E-AR Triplex 18/30kV Cable Gen to NF C 33-226 - AL/XLPE/MDPE

FR-N30XA8E-AR Triplex 18/30kV Cable Gen to NF C 33-226 - AL/XLPE/MDPE

The FR-N30XA8E-AR Triplex 18/30kV Cable is a high-performance triplex medium-voltage cable manufactured to NF C 33-226 standard for reliable power distribution. It features three stranded aluminium conductors (AL), semi-conductive conductor screens, high-quality XLPE (cross-linked polyethylene) insulation for excellent dielectric strength and thermal stability (90°C continuous, 250°C short-circuit), semi-conductive insulation screens, copper wire screens for grounding and protection, and a robust medium-density polyethylene (MDPE) outer sheath providing superior mechanical protection, moisture resistance, UV stability, and chemical resistance. The triplex configuration (three cores twisted together) facilitates easy installation in overhead aerial bundled systems or underground ducts. Compliant with French NF C 33-226 and relevant IEC standards, it offers low dielectric losses, high current-carrying capacity, and long service life in demanding environments. The FR-N30XA8E-AR is ideal for MV overhead lines, underground distribution, rural electrification, and urban networks requiring durable, weather-resistant triplex cable.
Voltage Rating(Uo/U) 18/30 (36)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-N30XA8E-AR Triplex 18/30kV Cable Constrution
FR-N30XA8E-AR Triplex 18/30kV 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-N30XA8E-AR Triplex 18/30kV Cable Gen to NF C 33-226 - AL/XLPE/MDPE
FR-N30XA8E-AR Triplex 18/30kV Cable Data Sheet
No. Of Cores

Nominal Cross

Sectional Area

Nominal Conductor

Screen Thickness

Nominal Insulation

Thickness

Nominal Sheath

Thickness

Nominal Overall

Diameter

Nominal Weight
  mm² mm mm mm mm kg/km
3x1 50 0.6 6.7 1.9 66.1 2469
3x1 70 0.6 6.7 1.9 69.6 2829
3x1 95 0.6 6.7 2 73.2 3203
3x1 120 0.6 6.7 2.1 76.7 3602
3x1 150 0.6 6.7 2.1 81.4 4064
3x1 185 0.6 6.7 2.2 83.8 4459
3x1 240 0.6 6.7 2.2 89 5166
3x1 300 0.6 6.7 2.3 94.6 5965
3x1 400 0.6 6.7 2.4 100.4 7063

Quality Control

FR-N30XA8E-AR Triplex 18/30kV Cable Gen to NF C 33-226 - AL/XLPE/MDPE
Raw Material Test

Raw Material Test

Raw Material Test for FR-N30XA8E-AR Triplex 18/30kV Cable ensures NF C 33-226 compliance and MV reliability. The rigorous process includes:XLPE Insulation Evaluation: XLPE compound tested for tensile (>12.5 MPa), elongation (>200%), dielectric strength (>20 kV/mm), water tree resistance, thermal aging (135°C/168h), and hot set test (≤175% elongation after 200°C/15 min).MDPE Sheath Check: Medium-density polyethylene sheath tested for tensile (>10 MPa), elongation (>300%), environmental stress cracking resistance (ESCR), UV stability, chemical resistance, and mechanical properties suitable for overhead/underground use.Traceability & Rejection: Full batch records maintained; non-conforming materials (e.g., failing dielectric, tensile, or ESCR tests) quarantined/rejected. 

Process inspection

Process inspection

Process Inspection during manufacturing of FR-N30XA8E-AR Triplex 18/30kV Cable maintains triplex precision and MV integrity. Steps include: 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. Parameter Adjustment & Sampling: Optimize extrusion temperature/speed; frequent samples tested for partial discharge and mechanical properties, deviations corrected immediately. This ensures the final FR-N30XA8E-AR Triplex 18/30kV Cable achieves superior dielectric performance, triplex stability, and consistent quality for overhead/underground MV distribution.

Finished Product

Finished Product

Finished Product Test confirms the FR-N30XA8E-AR Triplex 18/30kV Cable meets NF C 33-226 standards before shipment. The procedure includes: 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. Final Approval & Documentation: Generate traceable reports; only 100% compliant FR-N30XA8E-AR Triplex 18/30kV Cable labeled and coiled, ensuring high reliability, low losses, and safe performance in MV overhead/underground distribution.

Application

The FR-N30XA8E-AR Triplex 18/30kV Cable is perfect for 18/30 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

Product Packaging

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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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