Mountain View Municipal Code Div. 2 Local Amendments

The general code provisions code in Article 89 of the 2025 California Electrical Code shall be deleted in its entirety and replaced with the provisions and procedures pursuant to Chapter 1 (Administration), Division II (Scope and Administration) of the California Building Code as amended per Article IV of this Chapter.

(Ord. No. 9.2025, § 6(Exh. B), 9/9/25.)

Subsection 230.79 of the 2025 California Electrical Code is amended to read as follows:

230.79 Rating of Service Disconnecting Means. The service disconnecting means shall have a rating not less than the calculated load to be carried, determined in accordance with Part III, IV, or V of Article 220, as applicable. In no case shall the rating be lower than specified in 230.79(A), (B), (C) or (D).

(A) One-Circuit Installations. For installations to supply only limited loads of a single branch circuit, the service disconnecting means shall have a rating of not less than 15 amperes.

(B) Two-Circuit Installations. For installations consisting of not more than two 2-wire branch circuits, the service disconnecting means shall have a rating of not less than 30 amperes.

(C) One-Family Dwellings. For a one-family dwelling, the service disconnecting means shall have a rating of not less than 100 amperes, 3-wire accommodated on a minimum electric service panel size of 200 amperes. For 10 or more one-family dwellings as part of a subdivision, the service disconnect shall have a rating pursuant to California Energy Code Sec. 110.10(e).

(D) All Others. For all other installations, the service disconnecting means shall have a rating of not less than 60 amperes accommodated on a minimum service electric panel size of 100 amperes.

The building or unit with the service disconnect may be supplied with less electrical power than the service panel size installed per the requirements of this Section, so long as it is supplied with the minimum service disconnect rating as required by this code and any applicable California Building Code.

(Ord. No. 9.2025, § 6(Exh. B), 9/9/25.)