The sag of a transmission line conductor in summer is_____a)less than...
Explanation:
Introduction:
Transmission line conductors are subjected to various environmental factors that can affect their sag, which is the vertical distance between the lowest point of the conductor and a straight line connecting its supports.
Effect of Temperature:
Temperature is one of the primary factors that affect the sag of a transmission line conductor. When the temperature increases, the conductor expands and becomes longer, causing an increase in sag. Conversely, when the temperature decreases, the conductor contracts and becomes shorter, resulting in a decrease in sag.
Summer vs Winter:
In summer, the ambient temperature is generally higher compared to winter. This means that during the summer season, the temperature of the conductor itself will also be higher. As a result, the conductor will expand more in summer, leading to an increase in sag.
Key Point:
Therefore, the sag of a transmission line conductor is more in summer than in winter.
Conclusion:
The correct answer is option 'B': more than that in winter.