A69.  Speakers with flashers (strobe lights) shall be provided for basement car parks, mechanical or machine rooms, large machining areas of factories (more than 5000m²) and at locations where the ambient noise level is 75db or more.

A70.  All circuits necessary for the operation of the notification appliances shall be protected until they enter the evacuation signalling zone that they serve. Any of the following methods shall be considered acceptable as meeting the requirements of this subsection:

i.    A 2-hour fire rated circuit integrity (CI) cable 
ii.   A 2-hour fire rated cable system (electrical circuit protective system) 
iii.  A 2-hour fire rated enclosure 
iv.  Buildings fully protected by an automatic sprinkler system and with the interconnecting wiring or cables used for the operation of notification appliances installed in metal raceways  

A71.  Distribution of the manual call points should be such that travel distance should not be more than 45m to reach the nearest manual call point. These figures to be reduced to 25m and 16m in limited mobility areas, and where processes of the area result in a likelihood of rapid fire development.

A72.  The manual call points shall be installed generally at the height of (1.1 – 1.4) m, above floor level and in plain, accessible, well lit and free-hindrances places. Where disable people are expected to operate, height to be lowered to (91cm-1.2m).  

A73.  For raised floors 400mm and above the floor level and/or containing combustible materials shall be provided with smoke detectors.

Q72.  What is the height requirement to install a manual call point? A72. The manual call points shall be installed generally at the height of (1.1 – 1.4) m, above floor level and in plain, accessible, well lit and free-hindrances places. Where disable people are expected to operate, height to be lowered to (91cm-1.2m).

A73.  For raised floors 400mm and above the floor level and/or containing combustible materials shall be provided with smoke detectors.

A74.  For suspended ceilings which are above 800mm from the ceiling level and/or containing combustible materials, smoke detectors are to be provided.

A75.  Speakers used as alarm notification appliances on fire alarm systems shall also be permitted to be used for non-emergency purposes, provided that condition i or ii is met:

i.    The emergency command centre is constantly attended by trained personnel.
 
ii.    The speakers and associated audio equipment are installed or located with safeguards to resist tampering or mal adjustments of those components essential for intended emergency notification.

A76.    Speakers used as alarm notification appliances on fire alarm systems shall also be permitted to be used for mass notification systems.

A77.   Class 1 systems comprises of 65 mm diameter Landing Valve outlets coupled or uncoupled with 65mm diameter, 30 m long re-enforced rubber lined (RRL) hose with multipurpose hose nozzle for the use of Civil Defence department personnel or other trained fire fighting personnel.

A78.  Class 2 systems comprises of 25 mm diameter bore for Hose Reel System or 40 mm diameter bore for Hose Rack System, 30 m long dual reinforced rubber hose coupled with 6 or 8 mm bore multipurpose nozzle, for the use of occupants to extinguish small fires or when the fire is at its incipient stages until the arrival of Civil Defence fire fighters.

A79.  Class 3 system is a combination of both Class 1 & Class 2 systems for the use of occupants and as well as Civil Defence use. In general the class I system equipments are installed in lower level or compartment and class II system equipments in upper level or compartment of a cabinet. Alternatively, because of the multiple use, class III stand pipe system comprising 65 mm diameter landing valve with 65 mm x 40 mm easily removable adapter and coupled with 40 mm diameter, 30 m long fire hose and nozzle may be permitted as a special cases.

A80.  The Fire Hose Station should be clearly visible beside the exit way or stairway (maximum allowed 6 meters from exit way or exit staircase). Additional fire hose stations along the exit access corridor, horizontal exit or in the car park floors shall be installed such that all portions of each floor are within 30 m from the fire hose station while measured along the natural path of travel from the hose station.

A81.  Fire Pump shall be located at the lowest level of the building, pumping water upwards. Fire pumps at levels higher than the lowest level of the building with water supply feeding downwards is not allowed.

A82.   Dry riser stand pipe system shall be terminated to a 2-way breeching inlet connection having 100 mm dia flanged outlet with 2 nos of 65 mm dia instantaneous male coupling inlets, located at Fire Access level for Civil Defence.

A83.  Multiple wet risers’ zoning system shall be established in high rise buildings where pressure reducing valve station is utilized with single fire pump set instead of multiple pumping station, to restrict pressure limit with in 12 bar at any Landing valve outlet.

A84.  The minimum operating pressure of any sprinkler head for determining the water supply requirements  shall be not less than 0.5 bar (7 PSI) in the light hazard occupancy and 1.0 bar (14.5 PSI) in the ordinary hazard occupancies.

A85.  The maximum operating pressure in a sprinkler system shall not be more than 12 bar. Where higher operating pressure is used for the sprinkler system, all the sprinklers, pipes and fittings shall be rated for the higher operating pressure, however the operating pressure shall not be more than 16 bar in any case.

A86.  The proposed fire pump set for any water based suppression system including fire hydrants shall consists each of the following:

i.   Main Electric Pump
ii.   Standby Diesel driven Pump  
iii.  Electric Jockey Pump  iv.     Pump controllers
v.   Ancillary valves and fittings