Table
Ambient Temperature Review for Conductors
Ambient Temperature Review for Conductors lookup table with assumptions and boundary notes.
Scope
Climate review planning only. It does not apply ampacity correction, set conductor ratings, or determine code compliance for an installation.
Lookup table
Compare representative Canadian outdoor temperature review values before a conductor ampacity review.
Scroll sideways to keep row labels aligned with hidden columns.
| Location | Province/territory | Summer review (C) | Winter review (C) | Review step | Boundary |
|---|---|---|---|---|---|
| Vancouver | BC | 25 | -7 | mild coastal review | climate screen only; ampacity correction and conductor selection need current source review |
| Calgary | AB | 29 | -32 | large seasonal swing review | climate screen only; ampacity correction and conductor selection need current source review |
| Winnipeg | MB | 31 | -35 | hot summer and cold winter review | climate screen only; ampacity correction and conductor selection need current source review |
| Toronto | ON | 30 | -20 | southern Ontario review | climate screen only; ampacity correction and conductor selection need current source review |
| Montreal | QC | 30 | -24 | humid summer and cold winter review | climate screen only; ampacity correction and conductor selection need current source review |
| Halifax | NS | 27 | -15 | coastal Atlantic review | climate screen only; ampacity correction and conductor selection need current source review |
| Yellowknife | NT | 24 | -40 | northern cold-weather review | climate screen only; ampacity correction and conductor selection need current source review |
Notes
- Check table values for preliminary lookup and arithmetic checks only.
- Confirm equipment ratings, product markings, installation conditions, utility requirements, and the local authority requirements before design or field use.