New ESA Bulletin: Maximum Circuit Loading and Demand Factors

ESA

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

ESA Bulletins

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