Multiple Choice Question (MCQ)
Question: Why steel is reinforced in ACSR conductors used for overhead lines?
A.
To minimize the line sag
B.
To reduce the line voltage d
C.
To increase the tensile strength
D.
To increase the current carrying capacity
Correct Answer: To increase the tensile strength
Explanation
Aluminium conductor steel-reinforced cable (ACSR) is a type of high-capacity, high-strength stranded conductor typically used in overhead power lines. The outer strands are high-purity aluminium, chosen for its good conductivity, low weight, low cost, resistance to corrosion and decent mechanical stress resistance.