Wire Harness, Cable & Electromechanical Assembly worked example

Pull Test Sample Size at 65% pull tester uptime: a worked example

Suppose pull tester uptime falls to 65%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate pull test sample size for wire harness, cable and electromechanical assembly using production-ready inputs so teams can confirm whether capacity can cover demand before committing the schedule.

The inputs for this scenario

  • Terminations Pulled per Cycle: 4 units / cycle (held at the documented default)
  • Available Pull-Test Cycles: 480 cycles (held at the documented default)
  • Pull Tester Uptime: 65 % (the input this scenario stresses; the baseline uses 90)
  • Termination First-Pass Yield: 97 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross pull test sample size capacity = pull test sample size output per cycle × available pull test sample size cycles.
  • Good pull test sample size capacity works out to 1,211 units at these inputs, and this is the headline figure for the scenario.
  • Gross pull test sample size capacity works out to 1,920 units at these inputs.
  • Pull test sample size downtime loss works out to 672 units at these inputs.
  • Pull test sample size yield loss works out to 37.44 units at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where pull tester uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 27.78% below the baseline at 1,211 units.
  • It computes good tested capacity from terminations per cycle and available cycles, scaled by tester uptime and first-pass yield, and breaks out downtime and yield losses. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Good pull test sample size capacity: 1,211 units (headline result)
  • Gross pull test sample size capacity: 1,920 units
  • Pull test sample size downtime loss: 672 units
  • Pull test sample size yield loss: 37.44 units

Run it with your numbers

  • To rerun this with your own numbers, open the live Pull Test Sample Size calculator, set pull tester uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.