Laundry Sink,Laundry Room Sink,Kitchen Laundry Sink,Laundry Basin Sink SALLY TECHNOLOGY CO.,LTD , https://www.sallyshowers.com
1.1 When there are more than one type of prefabricated type S hot aerosol fire extinguishing devices in the same protective area, they must be able to start at the same time, and the time difference of the response of the operation should not be greater than 2S;
1.2 The protection volume of a single hot aerosol prefabricated fire extinguishing system device should not be greater than 160m3; when multiple devices are installed, the distance between them should not exceed 10m;
1.3 When using prefabricated fire extinguishing systems, the area of ​​a protected area should not be greater than 500m3, and the volume should not be greater than 1600m3;
1.4 The net height of the protection zone should not be more than 6m. If it exceeds this value, wall-hanging, suspended ceiling should be set up to compensate for the release point;
1.5 The allowable pressure of the doors, windows and protective components of the protection zone shall not be less than 1.2kpa, the fire-resistance limit shall not be less than 0.5h, and the fire-resistance limit of suspended ceilings and windows shall not be less than 0.25h.
Hot aerosol prefabrication system
2.1 The designed density of hot-air aerosol pre-cast fire extinguishing systems should not be less than 1.3 times the extinguishing density.
2.2 The fire extinguishing density of the S-type and K-type hot aerosols to extinguish the solid surface fire is 100g/m3.
2.3 The electrical equipment fire in communication equipment room and computer room and other places, the design density of S-type thermal aerosol fire extinguishing should not be less than 130 g/m3.
2.4 The fire extinguishing design density of S-type and K-type hot aerosol should not be less than 140g/m3 for cable ramp (sandwich, well) and self-provided generator room fire.
2.5 In the communications room, computer room and other protective areas, the extinguishing agent spray time should not exceed 90S, the nozzle temperature should not exceed 150oC; in other protection areas, the spray time should not exceed 120S, the nozzle temperature should not exceed 180oC.
2.6 The fire extinguishing densities of S-type and K-type hot aerosols on other combustibles should be determined experimentally.
2.7 The fire-fighting time should meet the following requirements:
(1) Solid surface fires such as wood, paper, and fabric should be used for 20 minutes;
(2) Fire and other solid surface fires in protected areas such as telecommunication rooms and computer rooms should be used for 10 minutes.
2.8 Design consumption should be calculated as follows: W=C2×V×KV
In the formula, W—design amount of fire extinguishing agent (kg); C2—design density of fire extinguishing (kg/m3)
V — net volume of protected area (m2)
KV—Volume Correction Factor. V<500m3, KV=1.0; 500m3≤V<1000m3, KV=1.1; V≥1000m3, KV=1.2
Design requirements of S-type hot aerosol fire extinguishing device
The design requirements for the S-type hot aerosol fire extinguishing device shall be divided into fixed closed spaces for the system protection zone, and m3 shall be taken as the calculation unit;