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Purpose:
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The original intent for permitting the installation of a Mini Class
'E' communication and alarm system was to allow for voice communication
in certain buildings where an approved interior fire alarm system existed.
A number of buildings now have a Mini Class 'E' system, which is strictly
a voice communication system and not meeting the intent. The Department
of Buildings, Fire Department, real estate professionals, engineers
and architects agree that voice communication systems alone do not provide
for the proper protection of life and public safety.
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Specifics:
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In lieu of installation
of a Mini Class 'E' system, which requires a Fire Safety Director in
buildings less than 75 feet in height classified in Occupancy Group
'E' may be provided with a zone annunciated temporal '3' evacuation
tone interior fire alarm system in accordance with Reference Standard
RS17-3 and RS17-5 of the New York City Building Code with connection
to a Fire Department approved central station, when:
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Building height is greater than or equal to 3 stories above or below
the street level, or
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Building occupant load is greater than or equal to 100 persons above
or below the street level, or
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There is an occupant load of 500 persons or more in the entire building,
or
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Entire building area is 50,000 square feet or greater.
The Interior Fire
Alarm System which is designed for total evacuation of the building
may be accepted as meeting the intent of the Code, provided that conditions
on the system reports to a Fire Department approved central station
in accordance with §17-01 of the Fire Department Rules. A Certificate
of Fitness holder, satisfying the requirements of the NYC Fire Prevention
Code, is still required; however the need for a Fire Safety Director
would be negated.
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