Stanley SCSS-700VS, Руководство по установке и эксплуатации

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Overview
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SURVIVABILITY:
Per the National Fire Alarm Code, NFPA 72, all circuits necessary for the operation of the
notification appliances shall be protected until they enter the evacuation signaling zone that
they serve. Any of the following methods shall be considered acceptable as meeting these
requirements:
1) A 2-hour rated cable or cable system
2) A 2-hour rated enclosure
3) Performance alternatives approved by Authority Having Jurisdiction