REVISION B
SHAMS REFLECTION 14 May 2018
100% Detailed Design Issue
a. The smoke-control mode shall be initiated within 10 seconds (adjustable) after
an automatic or manual activation command is received at the smoke-control
system.
b. Smoke-control systems shall activate individual components (e.g., dampers,
fans) in the sequence necessary to prevent physical damage to the fans, dampers,
ducts, and other equipment.
c. The time necessary for individual components to achieve their desired state or
operational mode once the component receives the signal shall not exceed the
following time periods:
1) Fan operation at the desired state: 60 seconds
2) Completion of damper travel: 75 seconds
FIRE RATED DUCT WORK
1. Minimum 2mm Galvanized sheet metal with combustion resistant insulation
material with appropriate thermal properties and with 105 kg / m3 density, selected to
meet the 2 Hr. fire rating criteria (for DW 144 Type A & B)
2. Alternatively a proprietary coating or wrap may be proposed by the contractor to
provide the required 2 Hour Fire Rating. The entire duct system including the hangers
shall be applied and certified by the coating manufacturer and also shall bear the
approval of UL and the Authorities having jurisdiction. A relaxation of the duct wall
thickness may be considered, at the Engineers discretion, if the proprietary protective
system will provide the required protection.
FIRE FIGHTERS’ SMOKE-CONTROL STATION (FSCS):
1. A fire fighters‘ smoke-control station (FSCS) shall be provided for all smoke control
systems, located within the Fire Command Centre (FCC).
2. The FSCS shall provide status indication, fault condition indication, and manual control
of all smoke-control system components and status of all Motorised Smoke Dampers
and Motorised Smoke and Fire Dampers.
3. Status indicators and controls shall be arranged and labelled to convey the intended
system objectives.
4. Operator controls, status indication, and fault indication shall be provided for each
smoke-control zone, each piece of equipment capable of activation for smoke control,
or a combination of these approaches.
5. Positive status indication (on and off) shall be provided individually or by zone for all
dedicated smoke-control system fans.
6. “On” status shall be sensed by a pressure difference, an airflow switch, or some other
positive proof of airflow.
7. Positive status indication (fully open and fully closed) of damper position shall be
provided if individual controls for the damper are provided on the FSCS.
8. Provision shall be included for testing the pilot lamps on the FSCS smoke control
panel(s) by means of one or more ”LAMP TEST” momentary push buttons or other
self-restoring means.
9. Diagrams and graphic representations of the system shall be used.
MEPF GENERAL REQUIREMENTS AND SCOPE OF WORKS (TOWER A) 92
