កក្កដា . 29, 2025 20:00 Back to list

N2XSEFGbY/NA2XSEFGbY Medium Voltage Power Cable 3.6/6kV-18/30kV XLPE Armoured

Medium Voltage Power Cable Steel Tape Armoured Cu(AL) Conductor XLPE Insulation Industry Trend Analysis

In the rapidly evolving landscape of industrial power transmission, the N2XSEFGbY/NA2XSEFGbY 3.6/6kV 6/10kV 8.7/15kV 12/20kV 18/30kV MEDIUM VOLTAGE Cu(AL) CONDUCTOR XLPE INSULATED MULTI-CORE STEEL TAPE ARMOURED POWER CABLE asserts itself as a benchmark product. Its robust construction, multi-core design, XLPE insulation, and steel tape armouring collectively serve critical infrastructure requirements—especially where durability, safety, and long-term reliability are non-negotiable. This in-depth article explores the cable’s industry context, technical parameters, manufacturing process, major advantages, supplier comparison, custom engineering options, and real-world applications—backed by data, charts, and professional insights.

Industry Trends & Market Insights

Growth Trajectory: The global medium voltage cable market is projected to grow at a CAGR of 6.2% from 2023 to 2030, driven by infrastructure spending and smart grid upgrades.
(Source: Grand View Research 2023 report)
Preferred Applications: Demand surges in energy (energy plants, renewables), petrochemicals, water treatment, mining, metallurgy, and building projects—where robust and safe power transmission is critical.
Material Shift: XLPE insulation and steel-tape armouring outperform classic PVC, especially for flame retardance, mechanical resilience, and thermal endurance. Industry migration from PVC-insulated cables to XLPE-insulated cables is evident, as shown by a 35% replacement rate within new European installations since 2022.
(Source: European Committee for Electrotechnical Standardization, 2024)

Technical Overview & Parameters Table

The N2XSEFGbY/NA2XSEFGbY 3.6/6kV 6/10kV 8.7/15kV 12/20kV 18/30kV MEDIUM VOLTAGE Cu(AL) CONDUCTOR XLPE INSULATED MULTI-CORE STEEL TAPE ARMOURED POWER CABLE is available in a range of voltage classes and core configurations:

Parameter	Specification	Standard/Remark
Nominal Voltage (U₀/U)	3.6/6kV, 6/10kV, 8.7/15kV, 12/20kV, 18/30kV	IEC 60502-2, GB/T 12706.2
Conductor Material	Copper (Cu) / Aluminum (Al)	Class 2 stranded (IEC 60228)
Insulation	XLPE (Cross-linked Polyethylene)	IEC, RoHS compliant
Core Number	3-core, 4-core, up to 5 cores	Customizable
Armour Type	Steel Tape Armoured (STA)	IEC 60502-2 section 12
Max. Continuous Operating Temp	90°C	XLPE property
Short-circuit Withstand Temp	250°C (max. 5 sec)	Safety margin
Outer Sheath	Flame-retardant PVC/LSZH	IEC 60332, EN 50267
Screen	Copper wire/tape or Al tape	Optional, for EMC applications
Test Voltage	Up to 35kV (5 min)	Type-tested
Certifications	CE, ISO 9001, ISO 14001	TUV, KEMA upon request

Manufacturing Process: Step-by-Step Flowchart

Cu (AL) Wire Drawing → Stranding → XLPE Insulation Extrusion → Core Laying-Up → Inner Sheath Application

Steel Tape Armouring → Outer Sheath Extrusion → Testing & QC → Packaging & Delivery

Key Manufacturing Highlights:
• Conductor: Cu/Al rods undergo multi-stage drawing (wire-drawing machines) to achieve high ductility with Class 2 stranding, ensuring low resistance.
• XLPE insulation: State-of-the-art triple extrusion lines guarantee uniform dielectric thickness.
• Armouring: Precision STA wrapping enhances mechanical/rodent protection, as required by IEC 60502-2.
• Testing: Routine batch tests for High Voltage (HV), Insulation Resistance, and Partial Discharge—exceeding ISO and ANSI standards.
• Environmental: All cables certified RoHS, REACH, and produced under ISO 14001 Environmental Management.

N2XSEFGbY/NA2XSEFGbY Medium Voltage Power Cable 3.6/6kV-18/30kV XLPE Armoured

Manufacturing Flowchart for N2XSEFGbY/NA2XSEFGbY 3.6/6kV-18/30kV Cable

Technical Advantages of N2XSEFGbY/NA2XSEFGbY Power Cables

Dielectric Strength & Aging Resistance: XLPE insulation provides excellent resistance to thermal aging and environmental stress cracking—certified dielectric breakdown strength ≥ 25 kV/mm (IEC 60502-2).
Mechanical Robustness: Steel tape armouring ensures resistance against crushing forces (>1000 N/5cm), rodents, and accidental excavation damage.
Corrosion Resistance: Outer sheaths are UV-resistant, flame retardant, and available as LSZH (Low Smoke Zero Halogen) for enhanced safety.
Long Service Life: Expect >30 years under normal operation, as per simulated aging tests per ISO/IEC standards.
Enhanced EMC: Optional screening reduces electromagnetic interference, vital for sensitive environments like substations.
Compliant with International Standards: IEC 60502-2, ISO 9001, CE, TUV-certified production line; full material traceability.

Product Performance Data Visualization

Supplier Comparison Table

	N2XSEFGbY/NA2XSEFGbY by THCable	Competitor A (Brand X)	Competitor B (Brand Y)
Standard Compliance	IEC 60502-2, ISO 9001, CE, TUV	IEC 60502	EN 60228, CCC
Conductor Options	Cu or Al (Class 2, 99.97% purity Cu)	Cu (Class 2)	Al only
Insulation Type	XLPE, RoHS/REACH	XLPE	PVC
Armouring	Steel Tape (galvanized), Double layer on request	Steel Wire only (select range)	Steel Tape
Production Lead Time	15-25 days	25-35 days	21-30 days
Custom Solution Service	Yes, Fast	Limited	On-request
Warranty	20 years	10 years	10 years

Customized Engineering Solutions

THCable’s N2XSEFGbY/NA2XSEFGbY 3.6/6kV 6/10kV 8.7/15kV 12/20kV 18/30kV MEDIUM VOLTAGE Cu(AL) CONDUCTOR XLPE INSULATED MULTI-CORE STEEL TAPE ARMOURED POWER CABLE can be fully tailored by:

Core numbers (2~5)
Screen design for EMC mitigation
Outer sheath in flame-retardant, LSZH, or anti-termite
Enhanced armouring (double steel tape, non-magnetic steel)
Specific conductor cross-section (sq.mm) as per load calculation
Coloured core identification, meter marking, UV marking

Application Scenarios and Project Cases

Typical Applications:

Power distribution in petrochemical complexes, refineries, and chemical plants
Subway, rail transit, station power supply
Mining, metallurgy smelters (high mechanical reliability required)
Water & wastewater treatment plants, desalination facilities
HVAC and industrial automation systems
Renewable energy (wind/solar to grid routing)

Selected Client Case:
Asia-Pacific 200MW Solar-Farm Substation (2023)

N2XSEFGbY/NA2XSEFGbY 12/20kV cables supplied; installed 15km across rough terrain. Onsite thermal monitoring (IEC 60287) showed operational core temp stabilized ≤ 61°C under 90% maximal load at noon. Downtime: Zero in 24 months. User Quote: “End-to-end performance, rugged enough for harsh subtropical storms.”

Europe: Municipal Wastewater Treatment Plant (2022)

Replaced legacy PVC cables with N2XSEFGbY/NA2XSEFGbY 8.7/15kV. Result: Maintenance costs reduced by 44%, thanks to corrosion-resistant sheath and improved insulation monitoring.

Certifications, Standards & Authoritativeness

International Certification: CE ISO 9001/14001 TUV Rheinland
Referenced Industry Standards: IEC 60502-2, EN 60228, ANSI C80.1, VDE 0276-620.
Major Municipal & Fortune 500 Clients: Served over 55 countries, with repeat contracts from major EPCs (e.g., Sinopec, Veolia, ENEL, State Grid Corp. China).

Delivery, Warranty & Customer Support

Estimated Production & Delivery: Standard lead time 15–25 days; urgent orders handled within 10–15 days.
Quality Guarantee: Comprehensive 20-year warranty for manufacturing defects.
On-site Technical Support: Global on-call engineers, documentation packages (install. manual, test certificate) included.
Pre/Post-Sale Service: 24/7 consultation via online/phone/email.

FAQ and Expert FAQ

1. What is XLPE insulation and why is it preferred for N2XSEFGbY/NA2XSEFGbY cables?

XLPE (Cross-linked Polyethylene) offers exceptional dielectric properties, high thermal rating up to 90°C continuous operation, outstanding aging resistance, and is much tougher against environmental and mechanical damage than PVC or EPR.

2. What are the typical cross-sectional areas available for conductors?

Standard sizes range from 35mm² to 630mm² (Cu), with customization. Correct sizing depends on the designed current load and installation environment.

3. How does Steel Tape Armouring (STA) benefit cable performance?

STA provides excellent mechanical protection against crushing and rodent attacks, making N2XSEFGbY/NA2XSEFGbY ideal for direct burial, tunnels, and high-traffic utility areas.

4. What installation standards should be followed?

IEC 60364, IEC 60502-2, and local wiring codes (such as NEC or BS 7671) dictate installation methods, minimum bending radius, and cable spacing to ensure both safety and longevity.

5. Can these cables be installed in wet or corrosive environments?

Yes, the PVC/LSZH outer sheath and steel armouring ensure high resistance to water ingress, UV light, most chemicals, and soil corrosion, as confirmed by IEC 60811 test data.

6. What are the test protocols for pre-shipment quality assurance?

All batches undergo partial discharge, withstand voltage, insulation resistance, and dimensional checks, exceeding ISO, ANSI, and IEC minimums. Full test certificates provided.

7. What is the expected operational lifespan under normal conditions?

Field and lab tests indicate a lifespan of 30–40 years, outperforming PVC-insulated cables by up to 200% in chemical or underground installations.

Citations & Further Reading

Grand View Research. (2023). Medium Voltage Cables Market Analysis Report.
CENELEC (2024). Technical Features of Medium Voltage Cables.
IEEE Xplore (2023). “Performance Comparison of XLPE- and PVC-insulated MV Cables”. Link.
Electrical Construction & Maintenance (EC&M) Journal, “Best Practices in Armoured Cable Installation and Testing”, EC&M.
Forum: ElectricianTalk N2XSEFGbY Real User Feedback.

IEC 60332-1-2 300/300V RVV H03V2V2-F Flexible Building Wire