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 2 - High-Voltage Electrical Safety Orders
Article 12 - Continuous Rigid Cable Supports (Cable Trays)
Section 2777 - Installation
Current through Register 2024 Notice Reg. No. 38, September 20, 2024
(a) Continuous rigid cable supports shall be installed as a complete support system.
(Title 24, Part 3, Section 3-318 - 5(a).)
(b) Each run of continuous rigid cable support shall be complete before the installation of cables.
(Title 24, Part 3, Section 318-5(b).)
(c) Where cables may be subjected to physical damage, noncombustible covers or enclosures providing the required protection shall be used.
(Title 24, Part 3, Section 3-318 - 5(d).)
(d) Continuous rigid cable supports shall be permitted to extend transversely through partitions or walls, other than fire walls, provided the section of the support within the wall is continuous and unventilated.
(Title 24, Part 3, Section 318-5(g).)
(e) Continuous rigid cable supports shall be permitted to extend vertically through floors and platforms, provided the continuous rigid cable support is totally enclosed where it passes through the floor or platform opening and for a distance of 6 feet above the floor or platform to provide protection from physical damage.
(Title 24, Part 3, Section 318-5(g).)
(f) Continuous rigid cable supports shall be permitted to extend vertically through floors and platforms in wet locations where there are curbs or other suitable means to prevent water flow through the floor or platform opening, and the continuous rigid cable support is totally enclosed where it passes through the floor or platform to provide protection from physical damage.
(Title 24, Part 3, Section 318-5(g).)
(g) In other than horizontal runs, the cables shall be fastened securely to transverse members of the continuous rigid cable support.
(Title 24, Part 3, Section 318-7(b).)
(h) A working space of 24 inches minimum shall be maintained on one side of each rigid cable support.
(Title 24, Part 3, Section 3-318 - 5(i).)
(i) A minimum vertical clearance of 6 inches shall be maintained from the top of the rigid cable support to all ceilings, beams, and other similar obstructions exceeding 24 inches, measured along the length of the cable support.
(Title 24, Part 3, Section 3-318 - 5(k).)
1. Editorial correction filed 11-2-83 (Register 83, No. 45).
2. Amendment of subsections (c)-(g) filed 12-10-87; operative 1-9-88 (Register 88, No. 1).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943(c), Health and Safety Code.
