Zhongdong Cable Co., Ltd.
| Payment Terms | L/C,T/T,Western Union |
| Supply Ability | 100KM/Week |
| Delivery Time | 7-30 days based on different qty |
| Packaging Details | Rolls, Wooden Drums, Steel Drums, Reels or customized |
| Voltage | 25/36kV |
| Conductor | Aluminium |
| Insulation | XLPE |
| Jacket | PVC |
| Specification | 3X300mm2 |
| Application | 35kV primary distribution substations |
| Brand Name | Medium Voltage Wire |
| Model Number | YJLV |
| Certification | CCC,ISO,TUV,CE, EAC |
| Place of Origin | Hebei，China |
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Product Specification
| Payment Terms | L/C,T/T,Western Union | Supply Ability | 100KM/Week |
| Delivery Time | 7-30 days based on different qty | Packaging Details | Rolls, Wooden Drums, Steel Drums, Reels or customized |
| Voltage | 25/36kV | Conductor | Aluminium |
| Insulation | XLPE | Jacket | PVC |
| Specification | 3X300mm2 | Application | 35kV primary distribution substations |
| Brand Name | Medium Voltage Wire | Model Number | YJLV |
| Certification | CCC,ISO,TUV,CE, EAC | Place of Origin | Hebei，China |
Product Overview
The Aluminum XLPE Power Cable 26/35kV 3×300mm² is a medium voltage power cable designed for reliable power transmission and distribution in utility, industrial, infrastructure, and renewable energy applications. Manufactured according to IEC 60502-2 standards, this cable combines a stranded aluminum conductor with XLPE insulation to provide excellent electrical performance, high thermal stability, and long service life.
Compared with traditional PVC insulated cables, XLPE insulated medium voltage cables offer higher operating temperatures, improved current-carrying capacity, lower dielectric losses, and superior resistance to environmental stress. These advantages make the cable suitable for underground installations, cable ducts, substations, power plants, and industrial distribution networks.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | 26/35 kV (Um = 40.5 kV) |
| Conductor | Aluminum, Class 2 compact round |
| Cross Section | 3 × 300 mm² |
| Insulation | XLPE (IEC 60840) |
| Flame Retardant Standard | IEC 60332-3 (Category A/B) |
| Outer Sheath Option | LSZH or PVC ST8 |
| Max Conductor Temperature | 90°C (normal), 250°C (short-circuit) |
| Approx. Weight | 6.2 kg/m |
| Current Rating (in air, 40°C) | 490–515 A |
Electrical Characteristics
The cable is designed to provide stable electrical performance under demanding operating conditions.
Key Performance Benefits
High insulation resistance
Low dielectric losses
Excellent overload capability
Strong short-circuit withstand performance
Superior resistance to electrical aging
These characteristics contribute to reduced maintenance requirements and enhanced system reliability.
Advantages of Aluminum Conductor Cables
Many power utilities and EPC contractors prefer aluminum conductor cables for large-scale projects due to their economic benefits.
1.Lower Material Cost
Aluminum conductor cables are significantly more cost-effective than equivalent copper conductor cables.
2. Reduced Weight
Aluminum conductors weigh approximately 50% less than copper conductors, reducing transportation and installation costs.
3. Easier Handling
The lighter cable structure improves installation efficiency, especially for long-distance power transmission projects.
4. Sustainable Solution
Aluminum is highly recyclable and supports environmentally responsible infrastructure development.
Aluminum vs Copper – Need to Know
Many procurement decisions come down to aluminum versus copper for 26/35kV cables. Below is a side-by-side comparison based on actual project experience.
| Comparison Factor | Aluminum (3×300mm²) | Copper (3×185mm² equivalent ampacity) |
|---|---|---|
| Conductor Cross Section | 300 mm² | 185 mm² |
| Approx. Cable Weight | 6.2 kg/m | 10.5 kg/m |
| Conductor Material Cost | Lower (approx. 30–40% less) | Higher |
| DC Resistance @20°C | ≤ 0.100 Ω/km | ≤ 0.099 Ω/km (similar performance) |
| Current Carrying Capacity | 490–515 A | 510–535 A (marginally higher) |
| Flexibility | Less flexible, larger bending radius | More flexible, smaller bending radius |
| Termination | Requires aluminum-specific connectors and anti-oxidant paste | Standard copper connectors work |
| Corrosion Resistance | Good, but avoid direct contact with copper | Excellent |
| Installation | Lighter, easier in trenches or trays | Heavier, more labor for handling |
| Short-circuit withstand (1s) | 25.5 kA | 42 kA (better for high fault current systems) |
Choose aluminum if weight and material cost are primary concerns, or if the project involves long cable runs (e.g., wind farm collection lines). Choose copper if space is tight, fault current levels are very high, or termination labor must be kept simple.
For most 26/35kV utility and renewable projects, aluminum offers the better total installed cost.
IEC 60502-2 Compliance
This medium voltage cable is manufactured in accordance with IEC 60502-2, the internationally recognized standard for power cables with rated voltages from 6kV up to 35kV.
The standard covers:
Cable design requirements
Electrical performance
Material specifications
Type testing
Routine testing
Installation recommendations
Compliance with IEC 60502-2 ensures reliable performance and compatibility with international power distribution systems.
The 26/35kV aluminum XLPE insulated power cable is widely used in medium voltage distribution systems requiring dependable electrical performance.
Utility Power Networks
Industrial Facilities
Renewable Energy Projects
Infrastructure Construction
Related Products
Buyers who view this 26/35kV flame retardant cable often also request the following products for complete project execution.
| Product | Description | Typical Use |
|---|---|---|
| 26/35kV Cold Shrink Termination Kit | Outdoor and indoor types, suitable for aluminum conductor 300mm². Includes stress control tube and anti-oxidant paste. | Cable termination at substation or pole |
| 26/35kV Cold Shrink Straight Joint Kit | For splicing two cable sections. Suitable for aluminum or bi-metallic connections. | Long cable runs, repair, or section joins |
| Aluminum Cable Lugs (300mm²) | Tin-plated aluminum, with anti-oxidant compound pre-filled. Compatible with copper busbars. | Connecting cable to switchgear or transformer |
| Cable Cleats (Flame Retardant Grade) | Short-circuit rated cleats for 3-core cable tray installation. LSZH material available. | Cable fixing and short-circuit protection |
| 12/20kV Flame Retardant Aluminum Cable | Lower voltage version for distribution networks. 3×240mm² or 3×300mm² available. | Secondary distribution or feeder lines |
| Instrumentation Cable (Flame Retardant) | Screened and unscreened options, 0.5–2.5mm², LSZH sheath. | Control and monitoring systems alongside power cable |
Note: All above products can be shipped together with the main cable order to save freight cost. Contact us for bundle pricing.
Installation Guidelines
To maximize service life and system reliability, the following installation recommendations should be observed:
Store cable drums in dry environments.
Avoid excessive pulling tension during installation.
Maintain the specified minimum bending radius.
Seal cable ends to prevent moisture ingress.
Use certified medium-voltage cable accessories.
Perform insulation resistance and high-voltage testing before commissioning.
Professional installation according to local electrical regulations is recommended.
Quality Control and Testing
Each cable undergoes comprehensive testing throughout the manufacturing process.
Routine Tests
Conductor resistance test
Partial discharge test
AC voltage test
Dimensional inspection
Type Tests
Heating cycle test
Impulse voltage test
Bending test
Insulation aging test
Finished Product Inspection
Every cable drum is inspected before shipment to ensure compliance with customer specifications and international standards.
Packaging and Delivery
Available packaging options include:
Export Wooden Drum
Steel-Wooden Drum
Fully Steel Drum
Customized drum lengths, markings, and packaging requirements can be provided according to project specifications.
Why Choose Zhongdong Cable
Professional medium voltage cable manufacturer
Strict IEC quality management system
Advanced production and testing equipment
Competitive factory-direct pricing
OEM and customized cable solutions
Fast technical support and quotation response
Export experience across Africa, the Middle East, Southeast Asia, and South America
Our engineering team provides complete support from product selection to project delivery.
Frequently Asked Questions (FAQ)
Q1: Is this cable truly flame retardant or just fire resistant?
Flame retardant means the cable will not propagate flame along its length when installed in bunches. This cable meets IEC 60332-3 Category A or B. Fire resistance (e.g. IEC 60331) is different – that keeps the cable working during a fire. If you need both, please let us know.
Q2: Is this cable suitable for direct burial?
Yes, with LSZH or PVC ST8 sheath. For rocky soil, additional bedding or protective cover is recommended. We can provide installation guidelines.
Q3: If I choose aluminum, what connectors do you recommend?
We recommend bi-metallic connectors or aluminum lugs with anti-oxidant compound and torque-controlled tools. We can supply these with the cable order.
Q4: Can you provide a copper version of the same cable?
Yes. The same construction with copper conductor is available upon request. Lead time and pricing will differ – please ask for a separate quote.
To receive a quotation, please confirm:
Conductor type (aluminum or copper)
Required length (km)
Sheath type (LSZH or PVC ST8)
Flame retardant category (A or B)
Destination port
Any required third-party inspection
Quotation turnaround: within 24 hours.
Company Details
Business Type:
Manufacturer
Year Established:
2004
Total Annual:
150000000-200000000
Employee Number:
400~500
Ecer Certification：
Verified Supplier
Zhongdong Cable Co., Ltd. is a professional cables and wires manufacturer in China since 2006, the company covers an area of over 38000 square meters, 30 advanced cable production lines and 40 sets of testing equipment, we have a strong R&D ability with almost 100 Senior technical personne... Zhongdong Cable Co., Ltd. is a professional cables and wires manufacturer in China since 2006, the company covers an area of over 38000 square meters, 30 advanced cable production lines and 40 sets of testing equipment, we have a strong R&D ability with almost 100 Senior technical personne...
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