Reference boundary

CEC current-carrying conductor source-navigation only. It does not publish current-carrying conductor derating values, conductor-counting rules, corrected ampacity values, raceway grouping answers, or compliance decisions.

Reference table

Point to Canadian public source pages relevant to current-carrying conductor derating review.

Reference basis uses CSA Canadian Electrical Code source navigation, ESA Ontario Electrical Safety Code navigation, and provincial code-adoption source navigation.
Source areaCurrent sourceReview useBoundary
CSA CEC source ownerCSA Group Canadian Electrical Code source navigationUse this current-carrying conductor source before reviewing conductor count or derating context.source-navigation only; no conductor derating value, conductor-counting rule, corrected ampacity value, or licensed table text is reproduced
ESA OESCOntario Electrical Safety Code pageUse this page to confirm the current Ontario code cycle before reading derating sources.source-navigation only; no conductor derating value, Ontario amendment, raceway grouping answer, or inspection answer is reproduced
Provincial code adoptionProvincial electrical-code adoption and authority navigationUse provincial source navigation before applying local code edition or amendment context.source-navigation only; no conductor derating value, local amendment text, conductor approval, or compliance answer is reproduced
Use notes
  • Use this table only for source-navigation and current source-area review.
  • Confirm the current source document, product marking, utility page, or authority guidance before any design or field decision.