12/20kV Aluminium Conductor XLPE Insulation Steel-free Twisted Cable for Overhead Lines
Application
The 12/20kV Aluminium Conductor XLPE Insulated Steel-Free Twisted Cable is designed for medium voltage overhead power distribution systems, offering a lightweight and reliable solution for modern electrical networks.
This cable is widely used in overhead transmission and distribution lines, particularly in urban, suburban, and rural electrification projects where reduced weight and ease of installation are important. The steel-free twisted design eliminates the need for steel reinforcement, making the cable lighter, easier to handle, and more suitable for long-span installations.
With XLPE insulation, the cable provides excellent electrical performance and thermal stability, allowing for higher current carrying capacity and reliable operation under varying load conditions. It is especially suitable for areas where corrosion resistance is required, such as coastal regions or chemically aggressive environments.
Typical applications include:
- Medium voltage overhead distribution networks
- Rural and remote area electrification
- Power supply for residential and commercial zones
- Industrial power distribution systems
The twisted configuration improves flexibility and reduces wind load, making it ideal for installation in areas exposed to strong winds or challenging terrain. It is also suitable for upgrading existing overhead lines to improve safety and reduce maintenance requirements.
Construction
1. Conductor:Multi-stranded, round, compacted aluminum conductor, class 2 according to SR EN 60228
2.Screen:Semi-conductive extruded screen
3.Insulation:XLPE according to SR CEI 60502-2
4.Insulation Screen:Semi-conductive extruded screen
5.Tape:Semi-conductive water-blocking tape
6.Adhesive aluminum copolymer tape:bonded to the PE sheath
7.Outer sheath: PE sheath, medium-density, black, weather-resistant
Specifications
|
Type
|
Conductor Diameter (mm)
|
Nominal Insulation Thickness
(mm)
|
Insulated Conductor Diameter
(mm)
|
Nominal Sheath Thickness
(mm)
|
Monopolar Bundle Outer Diameter (mm)
|
Weight (kg/km)
|
|
Min Max
|
Min Max
|
|
3x1x70
|
9.7
|
5.5
|
20.5 23.0
|
1.9
|
26.3 32.4 57
|
2100
|
Factory
Projects
Delivery and Pacakge
FAQ
1. What are the main types of power cables you manufacture?
We manufacture a wide range of power cables, including low voltage (LV), medium voltage (MV), and high voltage (HV) cables, as well as armoured cables, XLPE insulated cables, PVC insulated cables, and control cables. Our products comply with international standards such as IEC, BS, and ASTM.
2. What is the difference between XLPE and PVC insulated cables?
XLPE insulated cables offer higher temperature resistance, better electrical performance, and longer service life compared to PVC cables. XLPE cables are widely used in medium and high voltage power transmission, while PVC cables are typically used for low voltage applications.
3. What is armoured cable and where is it used?
An armoured cable is designed with a protective steel layer (such as steel tape armour or steel wire armour) to provide mechanical protection. It is commonly used for underground installation, industrial plants, power distribution networks, and harsh environments.
4. What standards do your cables comply with?
Our cables are manufactured in accordance with international standards such as IEC 60502, IEC 60228, BS 5467, BS 6724, ASTM, and other customized standards based on project requirements. We also provide third-party testing and certification upon request.
5. How to choose the right cable size for my project?
Choosing the correct cable size depends on several factors, including current carrying capacity, voltage level, installation method, ambient temperature, and voltage drop requirements. Our technical team can assist you in selecting the most suitable cable for your application.
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