INDUSTRIAL PARK FIRE PROTECTION SYSTEM

1. Water consumption standards:

– Industrial water: 7,700 m3/day

– Irrigation water for crops and roads (calculated based on 50% of irrigated area): 589 m3/day

– Service and public water: 128 m3/day

– Total water demand: 8,417 m3/day

– Leakage water: Qrr = 10% Q = 842 m3/day

– Firefighting water: According to Table 10 and Clause 5.1.3.1 of QCVN 06:2022/BXD, the Dau Giay Industrial Park must ensure sufficient water for simultaneously extinguishing two fires within 3 hours, with a firefighting flow rate of 100 l/s for each fire. Therefore, the required firefighting water flow rate is: Wcc = 100 l/s x 2 x 3.6 = 720 m3/h = 17,280 m3/day

Total water supply capacity: 8,417 + 842 + 17,280 = 26,539 m3/day

2. Firefighting Solutions:

To meet the above requirements, Dau Giay Industrial Park Joint Stock Company has signed an agreement with Gia Tan Water Supply Joint Stock Company (document number 140/CNGT) to ensure the water supply system’s capacity: 2 connection points with a flow rate of 27,000 m3/day, providing water 24/7. In case of an incident, the restoration time will not exceed 24 hours. The water pressure at the connection point during peak hours is 35m.

3. Water Supply System Design Solutions.

     a. Water Distribution Pipeline Network

The industrial park’s water supply network is a combined pipeline system for production, domestic use, and fire fighting, designed as a loop network to ensure that the pressure at the beginning and end points of the network does not differ significantly.

Water supply pipelines are laid beneath the sidewalks, with an average depth of 0.7-1m (measured to the top of the pipe). Reinforced concrete supports are installed at bends, valve locations, tees, and elbows. Along the pipeline route, water supply pits are constructed to each factory, each equipped with shut-off valves and water meters.

      b. Firefighting water supply network:

The fire hydrant system is designed as a low-pressure fire hydrant system, with a minimum water pressure of 10m at the fire hydrant. Firefighting will be carried out by fire trucks from the industrial park’s fire brigade. Water for the fire trucks is supplied from fire hydrants along the route. Above-ground fire hydrants conforming to standard 6379-1998 are arranged at road intersections and along the pipeline route at a maximum distance of 150m per hydrant. Pipeline materials:

Select HDPE pipes according to ISO2531 standards.

At the network nodes, install shut-off valves to allow for repairs to individual pipe sections when necessary.

The water supply pipeline network is hydraulically calculated using the Epanet program with two scenarios:

• • • Peak water consumption hours for production and domestic use.
    • Peak water consumption hours for production and domestic use plus fire.