The most commonly used conductor for power transmission and distribution is:
- Steel conductor
- Silver Copper conductor
Correct answer: 2. ACSR
Explanation: The most commonly used conductor for electric power transmission is ACSR.
ACSR stands for aluminum conductor steel reinforced. The outer strands for ACSR consist of stranded aluminum with a central steel strand. Aluminum is used due to its low weight/cost and good conduction properties, while steel is employed for providing strength to lines.