California Code of Regulations › Title 25 - Housing and Community Development › Division 1 - Housing and Community Development › Chapter 3 - Factory-Built Housing, Mobilehomes, and Manufactured Homes › Subchapter 2 - Manufactured Homes, Mobilehomes, Multifamily Manufactured Homes, Commercial Modulars, and Special Purpose Commercial Modulars › Article 3 - Commercial Modulars › Subarticle 3 - Electrical › Section 4389 - Fuel-Fired Engine Driven Generator Units

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) All fuel-fired engine driven generators
						shall be tested, listed and labeled in accordance with nationally recognized
						standards by an approved testing agency.
(b) Fuel-fired engine driven generators shall
						be installed in accordance with the equipment manufacturer's installation
						instructions and this subarticle. A copy of the installation instructions shall
						be provided in the commercial modular.
(c) Generator units shall be mounted in a
						manner so that adequate structural support from the commercial modular frame is
						provided for the equipment. The equipment shall be secured in place by a method
						that will preclude displacement from vibration and road shock.
(d) Generator unit compartments shall be
						designed and installed to provide a vapor-tight separation between the
						compartment and the interior areas of the commercial modular.
(e) Generator unit compartments shall be
						constructed of galvanized steel, not less than 0.0299 inch (0.759 mm) thick.
						Seams and joints shall be lapped, mechanically secured and made airtight to the
						interior of the commercial modular. Alternate materials and methods of
						construction may be used if they provide equivalent quality, strength,
						effectiveness, fire resistance, durability and safety and are approved pursuant
						to this section.
(f) Fuel-fired
						engine exhaust systems, fuel-supplies, electrical conduit, cables, conductors
						and equipment shall not penetrate any area of the compartment that separates
						the compartment from the interior of the commercial modular. Electrical
						conduit, cables and conductors penetrating the compartment in areas other than
						those that separate the compartment from the interior of the commercial
						modular, shall be protected by the use of tight fitting grommets.
(g) Compartments shall be provided with
						ventilation. The type, amount and location of compartment ventilation shall be
						provided in accordance with the equipment manufacturer's installation
						instructions.
(h) Except as
						provided by the equipment manufacturer's installation instructions, fuel-fired
						engine exhaust systems shall be separated by a minimum of 1 ½ inches
						from any combustible material or shall be insulated or shielded so that the
						exhaust system does not raise the temperature of any combustible material to
						more than 194 degrees F (90 degrees C). Each exhaust system shall be provided
						with an effective spark arrester and shall not terminate adjacent to the
						commercial modular gasoline filler spout. Exhausts shall terminate beyond the
						periphery of the commercial modular.
(i) Any generator shall be mounted in a
						manner to provide an effective bond to the commercial modular chassis. Listed
						equipment shall be installed to ensure that the current-carrying conductors
						from the generator and from an outside source are not connected to the
						commercial modular circuits at the same time.
(j) Supply conductors from a generator to a
						junction box or distribution panelboard shall be of the stranded type installed
						in flexible metal conduit or equivalent mechanical protection.
1.
						  Amendment filed 9-7-73; effective thirtieth day thereafter (Register 73, No.
						  36).
2. Amendment filed 12-7-79; effective thirtieth day thereafter
						  (Register 79, No. 49).
3. Amendment of section and NOTE filed
						  9-19-2011; operative 10-19-2011 (Register 2011, No.
						  38).
Note: Authority cited: Section 18015, Health and
							 Safety Code. Reference: Sections 18025, 18028 and 18029.5, Health and Safety
							 Code.