Counterweight Systems

Question 1

What is the purpose of a Counterweight System?

Answer 1

To produce the correct sag and shape in an aerial system but allowing for varying wind velocities.

Question 2

How high from the ground should a counterweight block sit once installed?

Answer 2

Counterweight block should float 1.5m from the ground.

Question 3

What size ropes are used for counterweight strops?

Answer 3

6mm Terylene rope

Question 4

What ground anchors are used in conjunction with counterweight systems?

Answer 4

Type 11 picket

Question 5

What safety precautions should be adhered to when working with counterweight systems?

Answer 5

Keep feet clear of counterweight block (always wear steel toe capped boots)

Ensure the halyard has tension placed on it from a lowering device, before detaching the block

When disconnecting the block, ensure it is secure or hold it securely to prevent the block from swinging and falling.

Keep hands and fingers away from ropes under strain.

When securing pickets into the ground, shards of metal may be removed from the picket when struck with a sledgehammer, therefore it is essential that eye protection is worn by all personnel involved in the installation of pickets.

Question 6

What equipment is required to slip a grounded counterweight block?

Answer 6

New Dead-ends and a Tirfor Winch.