RISBC-5 RI Electrical Code section 5.3.1 ARTICLE 210, Section 210.25.

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Click on the following link to view RISBC-5 Rhode Island Electrical Code Title 5 as shown below: https://rules.sos.ri.gov/regulations/part/510-00-00-5

Revise 210.25 as follows:

For the purpose of R.I. Gen. Laws § 23-28.1-2(b)(2)(i) and 450-RICR-00-00-8.1.25 of the Rhode Island Fire Safety Code Section 8 of the Rhode Island Life Safety Code, the requirement of NEC® 2020 section 210.25 shall be amended as follows:

210.25 Branch Circuits in Buildings with More Than One Occupancy.

  1. Dwelling Unit Branch Circuits. Branch circuits in each dwelling unit shall supply only loads within that dwelling unit or loads associated only with that dwelling unit.
  2. Common Area Branch Circuits. Branch circuits installed for the purpose of lighting, central alarm, signal, communications, or other purposes for public or common areas of a two-family dwelling, a multifamily dwelling, or a multi occupancy building shall not be supplied from equipment that supplies an individual dwelling unit or tenant space.
  3. Common Area Branch Circuits of Existing Three-Family Dwellings. Branch circuits installed for the purpose of associated smoke and carbon monoxide detection required for three (3) family dwellings located in the common areas of a three (3) family dwelling shall be permitted to be supplied from equipment that supplies an individual dwelling unit. Written documentation shall be supplied that there will be no interruption in service to said common area smoke and carbon monoxide devices.

Informational Note: See R.I. Gen. Laws § 23-28.1-2(b)(2)(i) and § 450-RICR-00-00-8.1.25 of the Rhode Island Fire Safety Code Section 8 of the Rhode Island Life Safety Code for requirements regarding the Installation of Smoke and Carbon Monoxide Alarms.

  1. Modifications to Existing Electric Service. Modifications to Existing Electric Service. When the electric service to a three-family dwelling with branch circuits installed in accordance with section 210.25(C) is upgraded, or an electric meter is added for any other purpose, said property shall comply with sections 210.25 (A) and (B).

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RISBC-5 RI Electrical Code section 5.3.1 ARTICLE 210, Section 210.25.

Below is a Real Question from our Electrical Continuing Education Courses for Electrical License Renewal:

Which of the following is true in RI regarding branch circuits in buildings with more than one occupancy?

A: Common area alarm circuits shall be supplied from equipment that supplies an individual dwelling unit or tenant space.
B: Common area lighting circuits at a two-family dwelling shall not be supplied from equipment that supplies an individual dwelling unit or tenant space.
C: Branch circuits in each dwelling unit shall also supply common area lighting or alarm circuits.
D: A multi occupancy building shall be supplied from equipment that supplies an individual tenant space.
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