Aerial Bunch Cables

Aerial Bunch Cables(ABC):

ATC make Aerial Bunch Cables as per IS 14255:1995, which pertains to Aerial Bunched Cables (ABC) for working voltages up to and including 1100 volts:

1. Scope:

  • This standard outlines the requirements for Polyethylene/crosslinked polyethylene insulated cableswith aluminium conductors.
  • These cables are designed for use as overhead distribution feeders.

2. Construction and Features

  • Insulation: The cables have polyethylene (PE)or crosslinked polyethylene (XLPE) insulation UV rays protected.
  • Conductors: They feature aluminium conductors.
  • Twisting Design: The insulated conductors (usually 3 or 4 in number) are twisted around a high-strength aluminium alloy bearer wire.
  • Earth-Cum-Neutral Wire: The bearer wire serves as both the earthand neutral wire and with street light conductor (optional).
  • Safety and Fault Minimization: The ABC system ensures safety, practically eliminates low-tension (LT) faults, minimizes supply interruptions, reduce transmission losses and extends the life of transformers.

3. Advantages of Aerial Bunched Cables (ABC):

  • Safety: The phase conductors are not under tension, making it a safe system.
  • Fault Reduction: LT faults are significantly reduced compared to bare conductors.
  • Tree Clearance: The problem of tree clearance is minimized.
  • Practical Elimination of LT Faults: Interruptions of supply are minimized due to the system’s design.
  • Power saver: reduced the transmission losses and theft proof cables.

4. Reduction in Power Losses

  • The bundled configuration of ABC reduces power losses, enhancing the overall efficiency of the power distribution system.
  • Closer proximity of conductors minimizes electromagnetic fields and reduces energy losses through induction and radiation

5. Resistance to Environmental Factors:

  • ABC is designed to withstand UV radiation, moisture, temperature variations, and chemical exposure.
  • The insulation materials used provide excellent resistance to weather conditions, preventing degradation and ensuring long-term performance1.

6. Improved Reliability and Performance:

  • The bundled configuration enhances the reliability of power distribution networks.
  • ABC is less prone to damage from tree branches, birds, or external disturbances, reducing downtime and improving overall network performance1

7. Cost-effectiveness

  • ABC eliminates the need for separate insulators, reducing installation and maintenance costs.
  • Fewer supporting structures (poles and towers) result in reduced infrastructure expenses1.

8. Easy Installation and Maintenance:

  • ABC is relatively easy to install compared to bare conductor systems.
  • The bundled configuration simplifies installation, reducing labor costs.
  • Minimal maintenance is required due to its durable construction and resistance to environmental factors1.

9. Compatibility with Existing Infrastructure:

  • ABC seamlessly integrates into existing power distribution infrastructure.

10.

  • It is compatible with various pole-mounted or overhead line systems, allowing for upgrades or replacements without significant modifications1

11. Application:

  • ABCs are commonly used for overhead distribution in various settings

12. Standard Details:

  • Title: Aerial Bunched Cables for working voltages up to and including 1100 Volts IS:14255/1995.

In conclusion, Aerial Bunch Cables are a reliable and cost-effective alternative for overhead power lines. They withstand harsh weather conditions and provide better protection against electrical faults and short circuits2. Whether in rural areas, urban settings, or industrial zones, ABC ensures efficient and safe electricity distribution.

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