He Medium voltage cable 15kv It is an essential element in modern electrical distribution systems, used to transport energy in industrial facilities, commercial, urban and rural. Its design is designed to operate with tensions up to 15.000 volts, offering high security, durability and efficiency.
This article presents a detailed guide on its variants, Applications and Technical Specifications, including unipolar and tripolar configurations, and driver sections from 25 mm² up to 800 mm².
15KV medium voltage underground cable
He 15KV medium voltage underground cable It is widely used in urban distribution networks where security and environmental protection are required. It usually has XLPE or EPR isolation, Metal screen and resistant exterior cover.
Advantages:
- Protection against mechanical damage and moisture.
- Greater durability.
- Less visual impact on the environment.
Half -voltage cable 15KV XLPE
He cable XLPE 15kV It is the most used thanks to its excellent electrical and thermal properties. Reticulate polyethylene insulation allows high operating temperatures and resistance to electrical efforts.
Technical Characteristics:
- Operating temperature: up to 90 ° C..
- Short circuit temperature: up to 250 ° C..
- Frequency: 50/60 Hz.
Power cable 15KV monopolar and tripolar
The cables can be:
- Unipolares (monopolares): Used in trays or ducts, easier to install separately.
- Tripolares: All drivers in a single cover, Ideal for underground facilities.
Technical Specifications Table per conductor section (25 mm² – 800 mm²)
Below is a table with the main technical specifications of unipolar cables with XLPE insulation, Copper Cup Conductor 2, copper thread screen, Nominal voltage 15KV:
| Section (mm²) | Conductive diameter (mm) | Thickness isolation (mm) | External diameter (mm) | Approximate weight (kg/km) | Admissible current in air (A) | Current on land (A) |
|---|---|---|---|---|---|---|
| 25 | 5.5 | 4.5 | 21.5 | 480 | 125 | 115 |
| 35 | 6.5 | 4.5 | 22.5 | 560 | 145 | 135 |
| 50 | 7.5 | 4.5 | 23.5 | 670 | 170 | 155 |
| 70 | 9.0 | 4.5 | 25.0 | 820 | 210 | 185 |
| 95 | 10.5 | 4.5 | 27.0 | 1010 | 250 | 220 |
| 120 | 11.5 | 4.5 | 28.5 | 1210 | 285 | 250 |
| 150 | 13.0 | 4.5 | 30.0 | 1440 | 320 | 280 |
| 185 | 14.5 | 4.5 | 32.0 | 1700 | 355 | 310 |
| 240 | 16.5 | 4.5 | 34.5 | 2100 | 410 | 360 |
| 300 | 18.5 | 4.5 | 37.0 | 2600 | 470 | 405 |
| 400 | 21.0 | 4.5 | 40.5 | 3300 | 550 | 475 |
| 500 | 23.5 | 4.5 | 43.5 | 4000 | 630 | 540 |
| 630 | 26.5 | 4.5 | 47.0 | 5000 | 720 | 620 |
| 800 | 30.5 | 4.5 | 51.5 | 6200 | 820 | 700 |
Use: For tripolar cables, The outer weight and diameter increase considerably. The permissible current decreases slightly by mutual effect between phases.
15KV medium voltage cable applications
15KV cables are used in:
- Primary distribution networks.
- Industrial and Commercial Parks.
- Electrical substations.
- Renewable energy projects (solar, wind).
- Railway infrastructure, ports and airports.
15KV medium voltage aluminum cables
The cables with Aluminum conductor They are an economic and light alternative to copper, especially in large extensions. Although its conductivity is lower, The greatest caliber compensates for this disadvantage.
Advantages:
- Lower weight.
- Reduced cost.
- Suitable for air and underground facilities.
15KV cable price per meter
The cost of the cable varies according to:
- Driver material (copper/aluminum).
- Driver section.
- Insulation type (XLPE, EPR).
- Configuration (tripolar).
- RULES AND DEMANDED CERTIFICATIONS.
Orientative Price Examples (per meter):
- Cable 15kV 70 mm² Cu unipolar: USD 12.00
- Cable 15kV 150 mm² to tripolar: USD 22.00
- Cable 15kV 400 mm² Cu unipolar: USD 45.00
Regulations and Certifications
Cables must comply with standards such as:
- IEC 60502-2 (International)
- ICEA S-93-639 (EU)
- IEEE 383 (Fire resistance)
- A, NTC, IRAM according to the country
Conclusion
He Medium voltage cable 15kv It offers security, efficiency and durability in a wide range of applications. Your availability in different sections (25 a 800 mm²), Settings (Unipolar and tripolar), and materials (copper or aluminum) allows you to adapt it to the specific requirements of each electrical project. A correct selection ensures optimal performance and long life of the system.