A87.   Fire Pumps shall be located at the ground floor or Fire Access level 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.

A88.  Any building higher than 90 m in habitable height from the lowest level of the building shall require a transfer pump set and a transfer water tank located on the mechanical floor.

A89.  The areas and occupancies which are used for non-industrial uses and contains low quantity and less combustible materials which are expected to release less heat release rates during fire condition shall be classified as light hazard occupancies.  

A90.  The areas and occupancies used for processing and handling of mainly ordinary combustible materials unlikely to develop intensely burning fires in the initial stages shall be classified as ordinary hazard occupancies.

A91.   The areas and occupancies which are used for commercial & industrial uses and contains medium quantity and moderate combustible materials and the storages up to 2.4 meters which are expected to release moderate heat release rates during fire condition shall be classified as Ordinary Hazard group-1. 

A92.  The areas and occupancies which are used for commercial & industrial uses and contain medium quantity and moderate to high combustible materials and the storages up to 3.6 mtrs which are expected to release moderate heat release rates and the storages up to 2.4 mtrs which are high heat release rates during fire condition shall be classified as Ordinary Hazard group-2.  

A93.   The areas and occupancies which are used for industrial uses and contains high quantity and very high combustible materials which will support fast development of fire and are expected to release very high heat release rates during fire condition and having less or no combustible or flammable liquids & gases shall be classified as Extra high hazard group-1.

A94.  The areas and occupancies which are used for industrial uses and contain moderate to high quantity of flammable & combustible liquids and gases which will support rapid growth of fire and expected to release very high heat release rates during fire condition shall be classified as Extra High hazard group-2.

A95.     Smoke Exhaust or extract fans shall be capable of operating effectively at 400°C for 2 hours.

A96.  Openings for the intakes of outdoor air to all air handling systems, mechanical ventilation systems, pressurization systems of exit staircases and internal corridors, and smoke control systems shall be no less than 5m from any exhaust discharge openings.

A97.     A concealed space between the ceiling and floor above it, ceiling and roof, or raised floor and structural floor of a building may be used as a plenum provided that the concealed space contains only:

i.    Mineral-insulated metal-sheathed cable,  
ii.    Aluminum-sheathed cable,  
iii.    Copper-sheathed cable,  iv.     Rigid metal conduit,  
v.    Enclosed metal trunking,  
vi.    Flexible metal conduit,  
vii.    Liquid-tight flexible metal conduit in lengths not more than 2 m, or metal-clad cables; viii.     Communication cables for computers, television, telephone and intercommunication system;
ix.    Fire protection installations;
x.    Pipes of non-combustible material conveying non-flammable liquids

A98.   Duct penetrations of fire walls should be avoided. Approved fire dampers shall be provided where air ducts penetrate or terminate at openings in walls or partitions required to have a fire resistance rating of 1 hour or more depending on the fire rating of the wall.

A99.     A fire damper shall not be required for the following:

1. Clothes Dryer Exhaust Ducts
2. Hazardous Fume Exhaust Duct
3. Stairwell Pressurization Ducts iv. Smoke Extraction Ducts
4. Laundry and Trash Chutes

A100. Materials used in the construction of a ceiling plenum shall be noncombustible or shall be limited combustible having a flame spread index of not more than 25 and a maximum smoke developed index of 50.

A101. All fire exit staircases that serve the basement floors shall also be pressurized if the same staircase shafts serving the upper floors are pressurized. Fire exit staircases that only serve the basement which have more than 2 levels or more than 7m below the level of discharge (high depth underground buildings and structures) shall be pressurized. Fire exit staircases that only serve the basement which have less than 2 or levels or less than 7m below the level of discharge (low depth underground buildings and structures) shall be provided with mechanical ventilation.

A102. In any building of which the habitable height exceeds 23 m, any internal exit staircases without adequate provision for natural ventilation shall be pressurized.

A103. A single-point injection system shall not be used where the stairwell height is more than eight stories. Stairwells more than 3 storeys above grade or 15m in height, which ever lower shall be provided with multiple-injection systems.

A104. Mechanically ventilated internal corridor shall have a purging rate of at least 6 air changes per hour.

A105. The purge rate for basement shall be at least 9 air changes per hour.

A106. The design smoke layer base shall be above the heads of people escaping beneath it. The minimum height shall be 1830mm