Prabha Power

MVCC Covered Conductor: Advantages, Applications & Sizes

Medium voltage-covered conductors (MVCC) are revolutionising the electrical engineering landscape. As power distribution evolves, these innovative solutions have become a game-changer, offering an unbeatable combination of safety, reliability, and versatility.

Ever wondered what keeps our lights on and our cities humming? It’s a covered conductor, the backbone of our electrical networks. These powerhouses operate in the 1,000 to 35,000-volt range, silently powering our communities and industries. As we navigate the complexities of modern energy needs, understanding these conductors is more crucial than ever.

In this blog, we’ll delve deep into the world of medium voltage covered conductors (MVCC), exploring their significant advantages, shedding light on their diverse applications, and discussing the various sizes available.

What are MVCC Covered Conductors?

MVCC stands for Medium Voltage Covered Conductor. These are power lines designed for voltages typically ranging from 1,000 to 35,000 volts. Unlike traditional bare conductors, MVCC cables are covered with a protective layer of insulating material, usually polyethene. This covering is what gives MVCC its unique properties and advantages.

Think of MVCC as the protective armour around power lines, shielding them from extreme weather conditions and ensuring smooth operation. They’re like superheroes standing strong in cities and industries, facing tough conditions head-on.

Types of Medium Voltage-Covered Conductor (MVCC)

There are several types of medium voltage covered conductors (MVCC), each designed for specific applications:

  1. Tree Wire Conductors: Ideal for rural electrification and overhead distribution lines, offering enhanced flexibility and reduced maintenance.
  2. Spacer Cable Systems: Perfect for areas prone to high winds and ice accumulation, minimizing the risk of electrical faults.
  3. Covered Aerial Cable: Versatile conductors suitable for urban environments, industrial complexes, street lighting, and public transportation systems.

Advantages of MVCC Covered Conductor

Medium voltage covered conductors (MVCC) offer numerous benefits that significantly enhance the efficiency and reliability of electrical networks:

  1. Enhanced Safety: The insulating cover reduces the risk of accidental contact with live wires, making it safer for utility workers and the public.
  2. Improved Reliability: MVCC is more resistant to short circuits caused by external factors like tree branches or animals, leading to fewer power outages.
  3. Moisture Resistance: The polyethene covering provides excellent protection against moisture, reducing the risk of damage and corrosion.
  4. Durability: MVCC’s unique construction ensures a long service life, even in extreme environments.
  5. Temperature Resistance: Designed to withstand high operating temperatures, maintaining performance under extreme conditions.
  6. Low Maintenance: MVCC requires minimal upkeep, reducing operational costs compared to bare conductors.
  7. Reduced Power Losses: The insulation covering helps conserve energy, resulting in lower power losses compared to bare conductors.
  8. Improved Aesthetics: MVCC can be customised to blend with the surrounding environment, making it suitable for urban areas where visual impact is a concern.
  9. Compact Design: The insulating cover allows conductors to be placed closer together, ideal for areas with limited space.
  10. Environmental Benefits: By reducing the need for wide clearance areas, MVCC allows for less tree-cutting and habitat disruption.

Applications of MVCC Covered Conductor

Medium voltage covered conductors (MVCC) shine in various settings:

  1. Urban Areas: Powering city infrastructure, street lighting, and residential areas in densely populated regions.
  2. Forested Areas: Coexisting more harmoniously with surrounding vegetation in heavily wooded regions.
  3. Coastal Regions: Providing extra protection against corrosion in areas with high salt content in the air.
  4. Industrial Settings: Ensuring uninterrupted power supply and minimizing downtime in various industrial applications.
  5. Renewable Energy Projects: Supporting infrastructure for wind and solar power projects.
  6. Railways: Playing a crucial role in railway electrification projects, ensuring safe and efficient power supply for trains.
  7. Wildlife-Rich Zones: Reducing the risk of animal-related outages and protecting local fauna from electrocution.

MVCC Sizes and Selection

Choosing the right size for your medium voltage covered conductors (MVCC) system is crucial for optimal performance. Common sizes include:

  • 25 sq mm
  • 50 sq mm
  • 70 sq mm
  • 95 sq mm
  • 120 sq mm

These sizes cater to a wide range of applications, from small-scale projects to large-scale power distribution systems. When selecting the appropriate size, consider factors such as:

  1. Voltage Rating: Ensure the conductor is rated for your system’s voltage (typically between 1kV and 35kV).
  2. Current Carrying Capacity: Choose based on the amount of current the conductor needs to carry.
  3. Span Length: The distance between support structures will influence the required conductor size.
  4. Environmental Conditions: Consider factors like ice loading, wind speed, and ambient temperature.
  5. Future Load Growth: Select a conductor size that can accommodate anticipated increases in power demand over the system’s lifetime.


MVCC technology represents a significant advancement in power distribution. Its combination of safety, reliability, and environmental benefits makes it an attractive option for a wide range of applications. As we continue to modernise our power grids and face new challenges in electricity distribution, MVCC is likely to play an increasingly important role.

For those in Guwahati and the surrounding areas looking to implement medium voltage covered conductors (MVCC) solutions, Prabha Power stands out as a trusted supplier. With our comprehensive range of MVCC products and expert knowledge, we’re well-equipped to help you find the ideal solution for your electrical transmission needs.

If you’re interested in learning more or discussing your specific requirements, don’t hesitate to reach out to Prabha Power. Our team of experts is ready to assist you in making the best choice for your electrical infrastructure. Give us a call at +91 9394879486 to start a conversation about how MVCC can benefit your next project.