Quick Reference -Fire Fighting (Part-6)

QUICK REFERENCE -FIRE FIGHTING (PART-6)

FIRE FIGHTING CLAUSE (AS PER GUJARAT FIRE PREVENTION AND LIFE SAFETY MEASURES REGULATIONS, 2023)

Clause

Head

Description

15.5.3

External Stairs:

The external stairs shall be constructed of non- combustible materials and any doorway leading to it shall have the required fire resistance. No external staircase, used as a fire escape, shall be inclined at an angle greater than 45° from the horizontal. External stairs shall have straight flight not less than 1250 mm wide with 250 mm treads and risers not more than 190 mm. The number of risers shall be limited to 15 per flight. Handrail s shall be of height not less than 700 mm and not exceeding 850 – 900 mm. There shall be provisions of balusters with maximum gap of 150 mm. 15.5.4

Horizontal Exit Door:

A horizontal exit shall be equipped with at least one fire/smoke door of minimum 2 hour fire resistance of self-closing type. Further, it should have direct connectivity to the fire escape staircase for evacuation. Doors in horizontal exits shall be open able at all times from both side 15.5.7

Exit Door ways

Size: No exit doorway shall be less than 1000 mm in width except assembly buildings where door width shall be not less than 2000 mm. Height: All doorways shall be not less than 2000 mm in heigh Opening Direction: Exit doorways shall open outwards, that is, away from the room, but shall not obstruct the travel along any exit. No door, when opened, shall reduce the required width of stairway or landing to less than 900 mm. Overhead or sliding doors shall not be installed. Exit door shall not open immediately upon a flight of stairs. A-landing equal to at least the width of the door (not less than 900mm) shall be provided in the stairway at each doorway, The level of landing shall be the same as that of floor, which it serves. Manual door should incorporate kick plate 300 mm high to withstand impact of wheelchair footrest where doors are glazed. Door handle and locks should be positioned between 900-1000 mm from floor level. Mirror: Mirrors shall not be placed in exit doors to avoid confusion regarding the direction of exit. 15.9 Corridors / Passageways & Stairs Case Flight: No flight shall contain more than 12 to 16 risers, but in residential buildings, in narrow plots and in high density Housing a single flight staircase may be permitted. Risers: The maximum height of a riser shall be 190mm. in a residential building and 16 cm. in any other occupancy. However, on an internal stairway within a dwelling unit a riser may be 25 cm high. Head room: The minimum head room in a passage under the landing of a staircase under the staircase shall be 2.2 meter. Tread Width: The minimum width of tread without nosing shall be 250 mm for internal staircase of residential buildings, other than fire escapes. This shall be 300 mm for assembly, hotels, educational, institutional, business and other buildings. The treads be constructed and maintained in a manner to prevent slipping. Hand Rail: Hand rail a minimum height of 0.9 meter from the center of the tread shall be provided. Floor indicator: The number of each floor shall be conspicuously painted in figures at least 15 cm large on the wall facing the fight of a stairway or at such suitable place as is distinctly visible from the fights. No Provision of Natural Ventilation : In case of any building having height more than 15 Meter and no provision of natural ventilation on either side of corridor, in such building, smoke exhaust system having make-up air and exhaust air system or alternatively, pressurization system with supply air system shall be required for the exit access corridors 15.8

Internal /Additional Staircases

Around Lift Shaft: A staircase shall not be provided around a lift shaft unless provided with fire stop door of 1 hour rating at every floor level and no other openings in the inside walls NO Services pass from Staircase: No gas piping, electrical panels& appliances or AC ducts shall be allowed in the stairway. However, service shafts/ ducts may be permitted. Electrical Shafts/ ducts shall have not less than2-hour fire resistance. For other service shafts/ ducts, the fire resistance shall be not less than 1 hour. Electrical Meter: Electric meters shall not be located below the staircase or along the exit route. Electric meters room shall be adequately ventilated & easily accessible Cooler Band : All steps, edges must have a contrasting color band of 50 mm width stretched entirely across the step width for uses other than residential use. Hand Rail: Continuous handrails shall be provided on both sides including the wall (if any) at two levels: upper at 850 mm – 900 mm and lower at 700 mm to be measured from the base of the middle of the treads to the top of handrails. Balusters/ Railing shall be provided in such a way that the width of staircase does not redu…