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Subchapter 7. General Industry Safety Orders
Group 8. Points of Operation and Other Hazardous Parts of Machinery
Article 69. Food and Tobacco Machinery

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§4530. Bakery Ovens.

(a) General Oven Requirements.

 (1) Ovens shall be located so that possible fire or explosion will not expose groups of persons to possible injury. For this reason ovens shall not adjoin lockers, lunch or sales rooms, main passageways, or exits. 

 (2) All bakery oven safety devices shall be inspected in accordance with the manufacturer's recommendations and shall include an annual inspection. If manufacturer's recommendations are not available, the bakery oven safety devices shall be inspected in accordance with the National Fire Protection Association (NFPA) 86-2007, Standard for Ovens and Furnaces, Chapter 1, Section 1.1, Scope and Chapter 7, Section 7.5 and NFPA 54-2006/American National Standards Institute (ANSI) Z223.1-2006, National Fuel Gas Code, Annex B.3, which are herein incorporated by reference.Exceptions: Coal and other solid fueled fire ovens and ovens with heating systems that supply a total input of not exceeding 150,000 Btu/hour (44 kW). 

 (3) Main shutoff valves, operable separately from any automatic valve, shall be provided to permit turning off the fuel or steam in case of an emergency. 

 (4) Main shutoff valves shall be located so that explosions, fires, etc. will not prevent access to these valves. 

 (5) Main shutoff valves shall be locked in the closed position when a person must enter the oven or when the oven is not in service. 

(b) Fired Ovens. Fired ovens shall be safeguarded against failure of fuel, air or ignition. Automatically controlled gas or oil fired equipment shall have a safety pilot mechanism installed by the manufacturer and so arranged that fuel will be shut off to both the main burner and pilot burner in case of failure of the pilot burner flame or of the spark igniter.

(c) Recirculating Ovens.

 (1) Each circulating fan in recirculating ovens shall be interconnected with the burner in such a manner that the fuel is shut off by a safety valve when the fan is not running. 

 (2) The flame of the burner or burners in recirculating ovens shall be protected by a quick-acting flame-sensitive safeguard which will automatically shut off the fuel supply in case of burner failure. 

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

1. New section filed 2-20-80; effective thirtieth day thereafter (Register 80, 
No. 8).

2. New subsection (a)(2), subsection renumbering and amendment of newly
designated subsection (a)(5) filed 5-1-2009; operative 5-31-2009 (Register
2009, No. 18).

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