26/35kV 3 Core Armoured Cable IEC Standard for Underground and Industrial Power Distribution
26/35kV 3 Core Armoured Cable IEC Standard for Underground and Industrial Power Distribution
26/35kV 3 Core Armoured Cable is a medium voltage power cable designed for reliable electricity transmission in utility networks, industrial facilities, renewable energy projects, substations, and underground power distribution systems. Manufactured with XLPE insulation and armored protection, the cable delivers stable electrical performance, high mechanical strength, and long service life under demanding installation conditions.
Zhongdong Cable manufactures medium voltage armoured cables according to international standards including IEC 60502-2 and IEC 60228, supporting global EPC contractors, utility companies, and industrial power projects.
What Is 26/35kV 3 Core Armoured Cable?
A 26/35kV 3 core armoured cable is a medium voltage power cable typically used in three-phase AC power systems. The cable consists of three insulated conductors combined within one cable structure and protected by metallic armor for enhanced mechanical protection.
The armored layer helps protect the cable from:
- Mechanical impact
- Compression damage
- Rodent attack
- Moisture ingress
- Harsh underground environments
Depending on installation conditions and project requirements, the cable can be manufactured with:
- Steel Tape Armour (STA)
- Steel Wire Armour (SWA)
- PVC outer sheath
- PE outer sheath
- LSZH outer sheath
Cable Construction
Typical cable structure includes:
| Layer | Material |
|---|---|
| Conductor | Copper or Aluminium |
| Conductor Screen | Semi-conductive Compound |
| Insulation | XLPE |
| Insulation Screen | Semi-conductive Compound |
| Metallic Screen | Copper Tape or Copper Wire |
| Inner Sheath | PVC |
| Armour | STA or SWA |
| Outer Sheath | PVC / PE / LSZH |
All materials are selected according to international medium voltage cable manufacturing requirements to ensure safe and stable long-term operation.
Main Features and Advantages
1.Reliable Medium Voltage Power Transmission
The cable is designed for 26/35kV power systems and provides stable electrical performance for medium voltage transmission and distribution applications.
2. Excellent Mechanical Protection
The armored structure offers strong resistance against external mechanical damage, making the cable suitable for underground installation, cable trenches, tunnels, and industrial environments.
3. High Temperature Resistance
XLPE insulation supports:
-
Long-term operating temperature: 90°C
-
Short-circuit temperature: up to 250°C
This ensures reliable performance under high electrical load conditions.
4. Suitable for Harsh Environments
The cable outer sheath provides resistance against:
-
Moisture
-
UV exposure
-
Corrosion
-
Oil
-
Chemicals
-
Abrasion
Optional anti-termite and rodent-resistant sheath formulations are available for tropical and industrial environments.
5. Long Service Life
High-quality conductor materials and strict manufacturing control help ensure low transmission loss and extended cable service life.
Applications
26/35kV 3 Core Armoured Cables are widely used in:
- Utility power distribution systems
- Medium voltage underground networks
- Power plants and substations
- Solar power projects
- Wind power projects
- Industrial plants and factories
- Mining projects
- Infrastructure and EPC projects
- Renewable energy collector systems
Technical Specifications
| Item | Specification |
|---|---|
| Rated Voltage | 26/35kV |
| Number of Cores | 3 Core |
| Conductor Type | Copper / Aluminium |
| Insulation | XLPE |
| Armour Type | STA / SWA |
| Outer Sheath | PVC / PE / LSZH |
| Operating Temperature | 90°C |
| Short Circuit Temperature | 250°C |
| Installation Method | Underground / Cable Tray / Duct |
| Standards | IEC 60502-2, IEC 60228, IEC 60332 |
Available Cable Types
We manufacture various customized medium voltage armoured cable solutions, including:
- Cu/XLPE/CTS/STA/PVC
- Cu/XLPE/CWS/SWA/PVC
- Al/XLPE/STA/PVC
- Flame Retardant MV Cable
- LSZH Medium Voltage Cable
- Anti-Termite Armoured Cable
- UV Resistant Outdoor Cable
Customized conductor sizes, sheath materials, fire performance, drum packaging, and printing are available according to project requirements.
Quality Control and Testing
Every 26/35kV 3 Core Armoured Cable undergoes strict quality inspection throughout the production process, including:
- Conductor resistance testing
- Voltage withstand testing
- Partial discharge testing
- Insulation thickness inspection
- Mechanical performance testing
- Finished cable routine testing
Our factory operates under:
- ISO 9001
- ISO 14001
- ISO 45001
Testing equipment is regularly calibrated to ensure reliable and accurate quality control results.
Why Choose Zhongdong Cable?
Zhongdong Cable is an experienced medium voltage cable manufacturer serving global utility, industrial, and renewable energy markets.
- 67,000+ m² manufacturing facility
- 30+ advanced production lines
- 35 professional testing systems
- Experienced engineering team
- OEM and customized cable production
- International export experience
- Fast delivery support for EPC projects
We provide professional cable solutions for customers across Asia, Africa, the Middle East, South America, and other international markets.
International Standards
Our 26/35kV Armoured Power Cables can be manufactured according to:
- IEC 60502-2
- IEC 60228
- IEC 60332
- BS Standards
- ASTM Standards
- Customized project specifications
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.