California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 5 - Electrical Safety Orders
Group 1 - Low-Voltage Electrical Safety Orders
Article 16 - Open Wiring on Insulators
Section 2420.3 - Exposed Wiring, Uses Permitted
Universal Citation: 8 CA Code of Regs 2420.3
Current through Register 2024 Notice Reg. No. 38, September 20, 2024
(a) Scope. Open exposed wiring shall not be installed in any building or portion of a building except:
(1) In substations, transformer vaults, transformer enclosures, on the supply side of electric furnace electrodes, or in tunnels or similar locations, where such spaces are restricted to electrical use and are accessible to qualified and authorized persons only.
(2) For insulated conductors as permitted in Article 13; Temporary Wiring.
1. Renumbering and amendment of former Section 2420.17 to Section 2420.3 filed 8-27-86; effective thirtieth day thereafter (Register 86, No. 37). For prior history, see Registers 83, No. 45 and 81, No. 41.
2. Amendment of article heading, section heading, subsection (a)(1) and NOTE filed 5-5-2008; operative 5-5-2008. Submitted to OAL for printing only pursuant to Labor Code 142.3(a)(3) (Register 2008, No. 19).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
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