Buy NFPA 17A: WET CHEMICAL EXTINGUISHING SYSTEMS from SAI Global. This edition of NFPA 17A, Standard for Wet Chemical Extinguishing Systems, was Changes to the edition clarified inspection, maintenance, and service. Title, NFPA 17A: Standard for Wet Chemical Extinguishing Systems, Edition . Publisher, NationalFireProtectionAssoc. ISBN, ,
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Where listed, metal-fabricated solid fuel cooking appliances shall be installed in accordance with the terms of their listings and with the applicable requirements of this standard. Solid fuel shall be ignited with a match, an approved built-in gas flame, or other approved ignition source. Any significant deterioration or defect that might weaken the chamber or reduce its insulation capability shall be immediately repaired. In lieu of the sprinkler system outlined in Storage of Solid Fuel 1.
If the floor of the chamber is of a metal that is subject to rapid corrosion from water, then a noncombustible, corrosion-resistant pan shall be placed just outside the cleanout door nnfpa this purpose.
Hood exhaust fans shall continue to operate after the extinguishing system has been activated, unless fan shutdown is required by a listed component of the ventilation system or by the design of the extinguishing system. Math June 1, Fuel shall not be stored in the path of the ash removal. Combustible or flammable liquids shall not be used to assist ignition. Placement is at discretion of the inspector. The distance is measured from the edge of hood. All discharge nozzles shall be provided with 117a, covers, or other suitable protective devices.
Where a building fire alarm or monitoring system is installed, the automatic fire-extinguishing system s shall be monitored in accordance with NFPA Long-handled tongs, hooks, and other required devices shall be provided and used to safely add fuel, adjust the fuel position, and control the fire without the user having to reach into the firebox.
The container or cart shall always be covered when it is being moved nfoa the premises. Extinguishing systems shall be serviced at least every six months, or after activation of the system, by a qualified trained person.
The ash shall be sprayed with water before removal to extinguish any hot ash or cinders and to control the dust when the ash is moved.
NFPA 17A: Standard for Wet Chemical Extinguishing Systems, Edition – Google Books
Swivel nozzles shall be rotated to a predetermined aiming point and then tightened to hold that angle. Residue that might begin to restrict the vent or create an additional fuel source b. The hood ventilation system shall be operated at the required rate of air movement, and approved grease filters shall be in place when cooking equipment under a kitchen grease hood is operated. Phasing of inspections may require additional fees. Please note, if a full manual is not available, the inspection may be discontinued and a rescheduling fee will apply.
Ash, cinders, and other fire debris shall be removed from the firebox at regular intervals to prevent interference with the draft to the fire and to minimize the length of time the nf;a door is open.
Nozzle type, height, and orientation relative to placement of cooking appliances will also be verified during the inspection. Filters and filtration devices installed in nfoa hood shall be cleaned.
Additional extinguishers may be required based on travel distance for solid fueled equipment or multiple fryers with a 6 ft2 surface area or greater. Movable cooking equipment shall be provided with a means to ensure that it is correctly positioned in relation to the appliance discharge nozzle during cooking operations. Wet chemical systems shall be provided with an audible or visual indicator to show that ncpa system is in a ready condition or is in need of 209. OCFA final inspection required.
Where more than one manual actuator pull is installed, they shall be identified with a permanent sign indicating which extinguishing system each will activate.
notes for hood extinguishing systems
Manual pull stations shall be located no higher than four feet above finished floor and shall be readily accessible for use at or near a means of egress from the cooking area a minimum of 10 feet and maximum of 20 feet from the kitchen exhaust system.
Solid Fuel Handling and Ash Removal 1. The combustion chamber shall be scraped clean to its original surface once each week and shall be inspected for deterioration or defects. Hydrostatic testing of the wet chemical extinguishing system shall be completed in intervals not exceeding 12 years.
When any hole occurs in a container from corrosion or damage, the container shall be repaired or replaced immediately. Please schedule all field inspections at least 48 hours in advance.
Inspections canceled after 1 p. Fuel shall be permitted to be stored in an area with walls, floor, ngpa ceiling of combustible or limitedcombustible construction.
Solid fuel shall be added to the fire as required in a safe manner and in quantities and ways not creating a higher flame than is required. Spark arrester screens located at the entrance of the flue or in the hood assembly shall be cleaned prior nfpw their becoming heavily contaminated and restricted.
The ash shall be spread out gently in small lots on the chamber floor or on a shovel, to be sprayed before it is removed to the metal container or cart. A shut down of all electrical and gas cooking equipment shall also be demonstrated. All interior surfaces of the exhaust systems shall be made accessible for cleaning and inspection purposes.
A separate fire alarm plan is not required. 17q in the Airlines Data file. Matches and other portable ignition sources shall not be stored in the vicinity of the solid fuel appliance. Additional notes required for solid fuel burning. Fuel shall be permitted to be stored closer than the requirements of Item 2 above where a solid fuel appliance or other cooking appliance is listed or approved for less clearance to combustibles.
Portable fire extinguishers shall be 2009 located along normal paths of travel where they are readily accessible. Where acceptable to the authority having jurisdiction, fuel storage areas shall be permitted to be protected with a fixed water pipe system with a hose capable of reaching all parts of the area.
notes for hood extinguishing systems
Testing during the OCFA inspection shall include a manual and automatic activation via fusible link. A placard shall be conspicuously placed near each extinguisher that states: A heavy metal container or cart minimum 16 gauge with a cover shall be provided for the removal of ash. Fusible links shall be replaced at least semiannually. The ash removal container or cart shall not exceed a maximum of 20 gal capacity, shall be assigned for this one purpose, shall be able to be handled nfa by any employee assigned the task, and shall pass easily through any passageway to the outside of the building.