RIG CH.6

Question 1

Explain the relationship between sling angle and sling tension.

Answer 1

As the sling angle decreases, the tension on each sling increases substantially

Question 2

What is the sling tension formula?

Answer 2

Sling tension = Sling length/Sling height * weight/# of slings

Question 3

What condition must be present to use the sling tension formula?

Answer 3

Sling length and weight distribution of load must be equal on all slings when using the formula.

Question 4

How should the sling be when installing an overhead transformer?

Answer 4

Sling must be as short as possible to maximize the lift

Question 5

What does the skilled line worker know about sling angles?

Answer 5

Sling angles can create tensions that far exceed the weight of the load being lifted.