Question

When calculating the pull box size for straight pulls on systems operating at less than 1000V. the length of the box must not be less than ____ times the trade diameter of the largest raceway.

Answer 1

The pull box size for straight pulls on systems operating at less than 1000V should be at least six times the trade diameter of the largest raceway.

Step-by-step explanation:

In order to calculate the pull box size for straight pulls on systems operating at less than 1000V, the length of the box must not be less than six times the trade diameter of the largest raceway.

For example, if the largest raceway has a trade diameter of 2 inches, the pull box size should be at least 12 inches long.