Public area audible notification devices must have a minimum ABA rating of . a. 65 at 10^'(3 m)

step 1 question we have a sound meter place 3 meter at a distance small r equals to 3 meter from a spea

Public area audible notification devices must have a minimum...

Public area audible notification devices must have a minimum $\mathrm{ABA}$ rating of _______.
a. 65 at $10^{\prime}(3 \mathrm{~m})$
b. 75 at $10^{\prime}(3 \mathrm{~m})$
c. 85 at $10^{\prime}(3 \mathrm{~m})$
d. 95 at $10^{\prime}(3 \mathrm{~m})$

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Key Concepts

Audible Notification Devices

Audible notification devices are alarm systems specifically designed to emit sounds that warn occupants of emergencies, such as fire or security incidents. They must produce a sound that can be clearly heard over ambient noise in public areas, ensuring that people are alerted promptly in critical situations.

Performance Ratings in Public Safety

Performance ratings, such as the ABA rating mentioned, quantify the effectiveness of an audible notification device. These ratings establish minimum sound output levels at specified distances to ensure compliance with safety codes and standards, guaranteeing that the alarm is sufficiently audible throughout the required area.

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