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IEC 60849 2nd Edition, February 1, 1998
Complete Document
Superseded By: ISO 7240-16
Sound Systems for Emergency Purposes
Additional Comments: W/D S/S BY ISO 7240-16 AND ISO 7240-19
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This International Standard applies to sound reinforcement and distribution systems to be used to effect a rapid and orderly mobilization of occupants in an indoor or outdoor area in an emergency situation.

This standard applies to systems using tone signals and to systems with voice announcements for emergency purposes.

NOTE 1 – The use of the system for normal sound reinforcement and distribution systems purposes under non-hazardous circumstances is not excluded.

NOTE 2 – It is recommended that the system, when used for emergency purposes, should form part of a complete facility (equipment, operating procedures and training programmes) for the control of emergencies.

NOTE 3 – Sound systems for emergency purposes may be the subject of approval by relevant authorities.