What is the minimum required separation distance between mortars buried in troughs or the ground?

The minimum required separation distance between mortars buried in troughs or the ground is typically 2 inches or half the diameter of the mortar. This requirement is grounded in safety principles outlined in NFPA 1123, which aims to minimize the risk of accidental ignition and potential hazards during a fireworks display.

The rationale behind this separation distance is to ensure that mortars do not unintentionally transfer heat or shock waves to each other, which could lead to premature ignition. By establishing a distance of 2 inches or half the diameter, the code aims to create a protective barrier that enhances safety for both the event crew and spectators. This measure reflects a balance between operational efficiency and risk management, ensuring adequate space for the safe performance of fireworks while mitigating risk.

In terms of practical application, adherence to this guideline is crucial for maintaining a safe environment during fireworks operations, thus protecting both personnel involved in the setup and the audience watching the display.