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(b) 3308.10.2 Standard of Stability
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All fireworks mortars and mortar racks used at a fireworks exhibition shall conform to the requirements of NFPA 1123 as listed in rule 1301:7-7-47 of the Administrative Code and this paragraph to ensure stability.
All mortar racks shall be securely positioned in accordance with the requirements of NFPA 1123 as listed in rule 1301:7-7-47 of the Administrative Code. The methods used to securely position the mortar rack shall not include the use of items such as plastic ties, string, twine, tape, or any other material that may easily break, dislodge, ignite, or otherwise permit the repositioning of the mortar rack.
All mortars, bundles, box items, cakes, candle placements, and mortar racks shall be inherently stable or be properly secured and braced to prevent repositioning. It is not acceptable to create inherent stability of mortar racks only by connection to other mortar racks.
All mortar racks shall be individually secured by one or more approved method. Approved methods include but are not limited to: utilizing steel stakes, sturdy wood stakes, or spikes securely attached to the rack frame with approved materials; utilizing sand bags of sufficient quantity and height placed on each side of and in direct contact with the rack frame; utilizing wood or steel feet of sufficient length, strength, and durability, securely attached in a perpendicular orientation to the ends of the rack frame; utilizing sideboards securely mounted in a perpendicular orientation to both ends of the rack frame; or by the construction of A-frame braces of sufficient strength and durability securely attached to both ends of the rack frame.
The stability of all mortars, bundles, box items, cakes, candle placements and mortar racks shall be verified by the licensed fireworks exhibitor and fire official immediately prior to the fireworks exhibition. Each such item shall be individually addressed in an appropriate manner to ensure its integrity and stability prior to providing affirmative documentation of such stability on the required inspection checklist.