Tension and Sag Calculation

What is the minimum recommended clearance for a 33 kV overhead line in a heavily ice-laden area?

• a) 5.5 m
• b) 7.0 m
• c) 8.5 m
• d) 10.0 m

Which of the following factors affects the sag of overhead lines?

• a) Tension
• b) Temperature
• c) Wind speed
• d) All of the above

What is the effect of temperature on the sag of a conductor?

• a) Increased temperature causes the conductor to sag more
• b) Decreased temperature causes the conductor to sag more
• c) Temperature has no effect on the sag of the conductor
• d) None of the above

Which of the following statements is true regarding the effect of wind on the sag of a conductor?

• a) Wind reduces the sag of the conductor
• b) Wind increases the sag of the conductor
• c) Wind has no effect on the sag of the conductor
• d) None of the above

What is the recommended minimum ground clearance for an 11 kV overhead line in a temperate region?

• a) 3.5 m
• b) 4.5 m
• c) 5.5 m
• d) 6.5 m