New ESA Bulletin: Maximum Circuit Loading and Demand Factors
January 23, 2024
Bulletin 8-3-15: Maximum circuit loading and demand factors: Rules 8-102, 8-106, 8-200, 8-202 and 8-304
Issued October 2023 (Supersedes Bulletin 8-3-14)
Scope
1) Calculation of the minimum ampacity of service or feeder conductors for residential occupancies
- a) Supplying one single dwelling unit (as defined in Section 0);
- b) From a main service supplying two or more single dwelling units such as row-housing, triplex and quadruplex stacked units;
- c) Supplying one dwelling unit (as defined in Section 0) such as apartment unit; and
- d) From a main service supplying two or more dwelling units
2) Classification of different types of row-housing
3) Smoke alarm and carbon monoxide alarm loads on branch circuits
4) Additional loads to a single dwelling unit
5) Use of demonstrated load – Who is a “qualified person”?
6) Maximum number of LED luminaires on an existing circuit
7) Heat pumps load demand
You can find the full Bulletin HERE
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![Guide to the Canadian Electrical Code, Part 1[i], 26th Edition– A Road Map: Section 74 — Airport installations](https://electricalindustry.ca/wp-content/uploads/2026/05/EIN-Stock-Guide-Code-Canada-Map-1200.png)
