Question

AAAC conductor supported in horizontal construction between two three member wooden pole structures in a level ground gives a minimum clearance of 1 0 � of its blue phase conductor is a sag of 4 � fro a span of 3 0 0 � . If the structure is to be used over a hill of 1 in 1 5 ; Find the minimum ground clearance obtained for the same span same conductor and weather conditions

Answer 1

To find the minimum ground clearance for a conductor supported in horizontal construction over a hill, consider the additional sag caused by the slope and use trigonometry to calculate the minimum ground clearance.

To find the minimum ground clearance for a conductor supported in horizontal construction over a hill, we can use the given information.

The conductor has a minimum clearance of 10° and sags 4° over a span of 300° on level ground.

Since the hill has a slope of 1 in 15, we can calculate the additional sag caused by the slope.

By taking the tangent of the angle of the hill's slope, we find that the sine of the additional sag angle is 1/15.

Therefore, the additional sag angle is arcsin(1/15). Adding the additional sag angle to the original sag angle of 4°, we find the total sag angle.

We can then use the total sag angle and span length to calculate the minimum ground clearance using trigonometry.