EV Charging Infrastructure Manufacturing worked example

Cable Harness Labor at 21% cable handling and test allowance: a worked example

What does the result look like when cable handling and test allowance reaches 21%? The full calculation is worked below with real intermediate numbers. a manufacturing engineer needs labor hours for cable and connector assembly

The inputs for this scenario

  • Cable or harness assemblies to build: 120 assemblies (unchanged)
  • Harness assembly rate: 10 assemblies / hr (unchanged)
  • Cable handling and test allowance: 21 % (raised for this scenario; the documented default is 18)

Working through the calculation

  • Applying the documented formula (Base harness labor hours = cable or harness assemblies รท harness assembly rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 14.52 hr for required cable harness labor hours, the number this scenario is built around.
  • At this operating point the engine returns 12 hr for base cable harness labor hours.
  • At this operating point the engine returns 21 % for cable handling and test allowance.
  • At this operating point the engine returns 10 assemblies / hr for harness assembly rate.

How this compares with the baseline

  • Against the tool's baseline example, where cable handling and test allowance sits at 18% and the headline result is 14.16 hr, this scenario comes in 2.54% above the baseline at 14.52 hr.
  • A figure at this level is achievable when cable handling and test allowance is genuinely sustained, not just peaked for a shift. It assumes a steady build rate, so it will understate hours if your harness mix includes high-mix, low-volume variants that slow operators between changeovers.

Results at a glance

  • Required cable harness labor hours: 14.52 hr (headline result)
  • Base cable harness labor hours: 12 hr
  • Cable handling and test allowance: 21 %
  • Harness assembly rate: 10 assemblies / hr

Run it with your numbers

  • Every input above is editable in the live Cable Harness Labor calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.