Switchgear, Panelboards & Electrical Distribution worked example

Torque Verification Time at 7.2% documentation & re-check allowance: a worked example

Here is what the math looks like when conditions slip. We hold every other input steady and drop documentation & re-check allowance to 7.2%, then walk the calculation through step by step. Torque verification time is the labor budget for confirming and documenting that every lug, bus bolt and terminal in a switchgear or panelboard assembly is tightened to spec.

The inputs for this scenario

  • Torqued connections to verify: 120 units (held at the documented default)
  • Torque-check rate per hour: 12 units / hr (held at the documented default)
  • Documentation & re-check allowance: 7.2 % (the input this scenario stresses; the baseline uses 10)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base torque verification time time = required work ÷ processing rate.
  • Adjusted run time works out to 10.72 hr at these inputs, and this is the headline figure for the scenario.
  • Base run time works out to 10 hr at these inputs.
  • Allowance applied works out to 7.2 % at these inputs.
  • Process rate works out to 12 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where documentation & re-check allowance sits at 10% and the headline result is 11 hr, this scenario comes in 2.55% below the baseline at 10.72 hr.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to documentation & re-check allowance, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It assumes one uniform check rate, so a lineup mixing small #10 terminals with large 3/4-inch bus bolts — which torque and stripe at very different speeds — needs to be split into separate estimates.

Results at a glance

  • Adjusted run time: 10.72 hr (headline result)
  • Base run time: 10 hr
  • Allowance applied: 7.2 %
  • Process rate: 12 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Torque Verification Time calculator, set documentation & re-check allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.