FIRE FIGHTING & FIRE PROTECTION SYSTEM

Fire fighting and fire protection for the project is planned in accordance to local codes/ standards, AHJ (Authority Having Jurisdiction) and international codes and standards such as NFPA and or FM Global codes/ standards.

Water is stored in underground tank of capacity as per requirement stipulated in local codes. Water is drawn from fire reserve tanks (generally below ground in basement) by electrically driven jockey pumps, fire pumps and sprinkler pump. A standby diesel engine driven pump for both the fire hydrants and sprinkler system is also provided. All pumps shall have separate suction line from the fire suction header. Delivery from the pumps is connected to the respective hydrant and sprinkler system. For Sprinkler system, installation control valve with hydraulic alarm are be provided in the basement. . The sprinkler pump is isolated from the main discharge header by a non return valve so that the hydrant pump can also act as standby for the sprinkler system. The function of pumps shall be to maintain 3.5 Kg/Sq.cm at the farthest hydrant. Diesel engine driven fire pump is of the same capacity and is back up for the electrically operated fire hydrant / sprinkler pump, as per fire regulations. This will be operated in case of total electrical power or electrical pump failure. Independent Jockey pumps for hydrant and sprinkler system operate intermittently in order to take care of hydraulic losses in the system and maintain the minimum pressure respectively in wet risers & sprinkler system. Fire pumps rating / duty is in accordance to AHJ directive and also caters for future expansion requirement.

This is the very basic informatin about Fire protection system, In next post i will discuss about 6-7 more topics like sustainable design, building simulation and structural consultancy.

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