This information is provided free of charge by the Department of Industrial Relations from its web site at These regulations are for the convenience of the user and no representation or warranty is made that the information is current or accurate. See full disclaimer at

Subchapter 5. Electrical Safety Orders
Group 1. Low-Voltage Electrical Safety Orders
Article 4. Requirements for Electrical Installations

Return to index
New query

§2340.5. Conductors.

(a) Insulation. All conductors used for general wiring shall be insulated unless otherwise permitted in these safety orders.

(b) Type. The conductor insulation shall be of a type that is approved for the voltage, operating temperature, and location of use.

(c) Distinguishable. Insulated conductors shall be distinguishable by appropriate color or other suitable means as being grounded conductors, ungrounded conductors, or equipment grounding conductors.

Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. New section 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). For prior history, see Register 79, No. 12.

Go BackGo Back to Article 4 Table of Contents