Our Professional Answer: The Zebra conductor is a specific type of Aluminum Conductor Steel Reinforced (ACSR) conductor widely used in high-voltage overhead transmission lines. Its name is derived from a standardized naming convention (often based on British Standard BS 215). It consists of a galvanized steel core, which provides high tensile strength, surrounded by multiple strands of hard-drawn aluminum wire, which ensure excellent electrical conductivity.

Key characteristics include:

• High Strength-to-Weight Ratio: The steel core allows for long-span installations with less sag, reducing the number of support towers required.

• Optimal Conductivity: The outer aluminum layers are designed for efficient current transfer.

• Standardized Construction: The Zebra conductor typically has a stranding of 54 aluminum strands over a 7-strand steel core (54/7), with a nominal aluminum area of 400 mm².