Subchapter 5. Electrical Safety Orders
Group 2. High-Voltage Electrical Safety Orders
Article 4. Service and Service Entrance Equipment (Formerly Article 53)

§2725. Location of Switching Devices and Other Service Entrance Equipment.

(a) The service switching device(s) shall simultaneously disconnect all ungrounded conductors supplied through the service entrance conductors.

EXCEPTION: No. 1: Metering equipment shall be permitted to be placed on the source side of the service switching device and fuses, provided the metering is suitably enclosed and no energized parts or wiring are exposed or accessible to other than employees of the serving agency.

EXCEPTION: No. 2: Current transformers for protection of service equipment or current indication.

EXCEPTION: No. 3: When suitable overcurrent protection and disconnecting means are provided, a circuit used for an of the following purposes shall be permitted to also be connected on the source side of the service entrance switching device: (a) Fire pumps; and (b) Potential or control transformers for electrical operation or protection of the service equipment, or for voltage indication. If voltage indication is provided, it shall be on all phases.

(Title 24, Part 3, Section 3-230-205.)

(b) Surge and lightning protection equipment shall be connected to the source side of switching devices.

(Title 24, Part 3, Section 3-230-209.)

NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943(c), Health and Safety Code.

HISTORY

1. Editorial correction filed 11-2-83 (Register 83, No. 45).

2. Amendment filed 12-10-87; operative 1-9-88 (Register 88, No. 1).