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🇨🇦 Canadian Electrical Guides

Written to the Canadian Electrical Code — where the voltage-drop limit is mandatory, the cable is NMD90, and the code speaks metric. 🇺🇸 US guides

How these guides are made

The Canadian rules and tables cited here were checked against Canadian sources. Ampacity Tables 2 and 4, Tables 5A and 5C, and Rules 4-004, 4-006, 8-104, and 14-104 use CSA C22.1:24 — Canadian Electrical Code, Part I, 26th edition (2024). Provincial adoption and amendments vary; confirm the edition adopted locally. These guides do not replace a licensed electrician or your provincial inspection authority.