Reference boundary

Checklist only. It does not publish ampacity values, correction factors, derating factors, conductor sizes, or approval decisions.

Reference table

Use a structured checklist to collect the inputs needed before a Canadian conductor ampacity review.

Reference basis is a workflow checklist from public code-roadmap categories and conductor review practice; no code table values are reproduced.
Review stepWhat to confirmSource basisBoundary
Conductor materialCopper or aluminum, including coating and product typeProduct markings and manufacturer datachecklist step only; not an ampacity value or installation approval
Insulation ratingTemperature marking, wet/dry location marking, and cable assemblyProduct markings and installation conditionschecklist step only; not an ampacity value or installation approval
Termination ratingEquipment terminal temperature and conductor material markingEquipment label and manufacturer instructionschecklist step only; not an ampacity value or installation approval
Ambient conditionExpected ambient temperature and rooftop or equipment-room conditionsClimate and site sourcechecklist step only; not an ampacity value or installation approval
Current-carrying conductorsNumber of loaded conductors in a raceway or cable assemblyProject circuit schedule and installation layoutchecklist step only; not an ampacity value or installation approval
Raceway or cable environmentRaceway type, cable tray, bundling, insulation, and heat sourcesProject installation methodchecklist step only; not an ampacity value or installation approval
Final authority reviewApplicable code edition, amendments, and local acceptance pathCurrent code source and AHJchecklist step only; not an ampacity value or installation approval
Use notes
  • Use this table for preliminary reference and arithmetic checks only.
  • Confirm equipment ratings, product markings, installation conditions, utility requirements, and the local authority requirements before design or field use.