Data Encyclopedia: Specification for Fire Protection Acceptance of Construction Projects

Acceptance basis

"People's Republic of China Fire Protection Law";

"Building project fire acceptance criteria" ;

"Fire Control Regulations for Construction Projects" and other fire regulations

Various mechanical and electrical professional fire protection design

1. When each of the fire compartments of each floor of a multi-storey building and a high-rise industrial building is set up independently for ventilation and air conditioning systems, the junction between the delivery and return air ducts and the mains in the protected fire compartment may not be Fire damper

2 , fire accident lighting and evacuation signs can be used as standby battery power, but the continuous power supply should not be less than 20min ;

3 , fire lighting should be set in the following closed stairwells, smoke-proof stairwell and its front room, fire elevator front room;

4. An evacuation walkway shall be provided for the construction of enclosed stairwells or smoke-proof stairwells as required;

5 , accident lighting for evacuation, the minimum illumination should not be less than 0.5lx . Fire control room, fire pump room, and lighting branch of the generator room shall be connected to the fire distribution line;

6. The scattered indicator should be placed on the top of the Taiping Gate or the evacuation aisle and its corners at a height of 1m below the ground . The distance between the signs on the walkway should not exceed 20m .

Automatic fire alarm and control room

1. The alarm area is divided according to the fire zone. An alarm zone can consist of several fire zones;

2. The forms of fire automatic alarm system are: centralized alarm system: regional alarm system; control alarm system (control center), a regional alarm controller can alert multiple floors (see the function of the product) installation location 1.3-1.5 from the ground Meter , alarm phone installation location 1.3-1.5 meters ;

3 , underground shops with a building area greater than 500m should have automatic fire alarm devices;

4. Fire-fighting control rooms set up independently shall not have fire-resistance grade lower than Grade 2. Use partition walls with a fire-resistance limit of not less than 3 hours and floor slabs of 2 hours , separate from other parts and set up safety exits that pass through the outdoors;

5. The control room shall be equipped with the following functions: receiving fire alarms, emitting sound and light signals of fires, accident broadcasting and safety evacuation instructions, etc.: controlling fire-fighting pumps, fixing fire-fighting devices, ventilation and air-conditioning systems, electric fire doors, valves, and fire prevention coils. Curtains, smoke and smoke protection facilities. Display power supply, fire elevator operation, etc.;

6. The fire alarm button is installed 1.5 meters from the ground ;

7 , the alarm line reserved 100-200 mm length, bundled into bundles, + red - blue line

8 , the alarm line laying should not have connectors, kinks, wire connectors should be used in the junction box with terminals or solder connections (not more than two each terminal wiring ), plus the nut inside the box. Different voltage, current, different loops, different systems, different types of lines can not be placed in the same slot;

9. Hangers and brackets shall be set at intervals of 1.5 meters in the trunking and the drawbar shall not be less than 6mm .

10 , fire power should be a dedicated power supply, not allowed to plug connector;

11. The control room door is opened to the evacuation direction, allowing return air duct but fire damper should be added. It is forbidden to traverse irrelevant electrical lines, leaving 1 meter of channels and maintenance access around the console ;

12. Fire control function: control the opening and closing of fire fighting equipment; switch of fire pump, smoke prevention and smoke exhaust fan; close fire damper and stop air blower; display fire and fault alarm position; evacuation passage, exit, etc.; Protection map (simulation map, floor plan); display the status of fire power; equipped with fire alarm emergency broadcast control device;

13. Fire control status process: when fire alarm; fire alarm system alarm; automatic fire extinguishing system startup; indoor fire hydrant system startup (fire pump start); power supply switching (non-fire power outage, emergency fire power start), and Turn on alarms and emergency lighting and evacuation indicator lighting. The elevator was forced to descend on the ground floor; the pressurized air blower was started (the air outlet was opened), the isolation system was started (the fire shutter was lowered), and the fire door was closed;

14. At least one manual fire alarm device shall be installed at every fire prevention partition. The distance between two manual fire alarm devices shall not exceed 30 meters and the installation position shall be 1.3-1.5 meters .

Smoke prevention and smoke exhaust system

1. Buildings with Class 1 and Class 2 (above 50 meters in height ) and buildings over 32 meters in height shall be provided with smoke-proof partitions;

2. Smoke prevention partitions shall not exceed 500 square meters in general and shall not be larger than fire prevention partitions. If they do not cross fire prevention partitions, the anti-exhaust system shall be set up in the corridors, anti-smoke and exhaust shafts, respectively, with a fire-resistance rating of 1 hour.

3 , high-rise building smoke, smoke exhaust system. It is divided into mechanical pressurized air supply and smoke prevention system and automatic smoke exhaust system (open outside window); automatic smoke exhaust system (open outside window) is divided into: mechanical exhaust system and natural exhaust system that can open outside window;

4. There should be two evacuation smoke prevention staircases in the tower building; there should be an antechamber and a mechanical pressurized air supply system in the front chamber. Every two to three floors of the stairwell are provided with a pressure air supply port, and each floor of the front room is provided with a pressure air supply port;

5 , smoke-proof stairwells. Combined fire room design air volume 18000-20000 . 28000-30000M3, H. Layered calculations with more than 32 layers.

Mechanical pressurized air supply system

1 、The mechanical pressure air supply system is installed in the front room, stairwell, front room, and fire elevator front room; when the stairwell and the fire room air pressure supply system must be used together, the pressure difference automatic adjustment device should be set; The total pressure of the pressurized air supply system shall be calculated to calculate the head loss of the least effective point, and the remaining pressure shall meet the following requirements:

2. Smoke prevention stairway is 50PA ;

3 , the front room, stairwells, pre-combined room, fire elevator room, evacuation room for the 25PA ;

4. A pressure air supply port is provided every 2-3 floors in the stairwell, and the pressure air supply port is provided on each floor of the front room.

5 , the wind speed regulation of mechanical pressure air supply system and mechanical smoke exhaust system

(1) metal duct, wind speed is not greater than 20 m / s

(2) concrete pipe wind speed is not greater than 15 m / s

(3) delivery outlet wind speed is not greater than 7 m / sec; Winds exhaust port no greater than 10 m / s;

6 , the setting of the exhaust system: generally set in the stairwell, the front room, the fire room, the front room. Refuge floors.

7. The amount of air supply and the amount of air exhausted from a stairwell over 32 floors should be calculated in sections.

8. Shear room stairwells are available for use with one air duct. The air volume is calculated by two stairwells. The tuyere is set separately.

9, the pressurized air supply is calculated as the net evacuation floor area of not less than 30 cubic meters / second, evacuation outlet layer should be provided with fire lifts, emergency lighting, radio, telephone fire, fire hydrants, and a separate smoke facilities , Smoke prevention stairs are divided.

Mechanical exhaust (smoke) system

1. Setting conditions of smoke exhaust system:

( 1 ) The height of the building exceeds 32 meters .

( 2 ) The inner corridor exceeds 20 meters . Natural light and natural ventilation

( 3 ) Over 100 square meters in area

( 4 ) Ventilation and air conditioning system should be set exhaust smoke system

2. Installation position of smoke prevention system:

( 1 ) A room with a height of more than 6 meters in a smoke-preventing partition , no less than 60 cubic meters per square meter

( 2 ) A room with a height of more than 6 meters for a smoke-prevention zone , not less than 120 cubic meters per square meter

( 3 ) The exhaust outlet is installed on the roof and ceiling; the amount of smoke discharged is not less than 60 cubic meters per second;

( 4 ) The horizontal distance of the smoke-proof mouth is not more than 30 meters. The closing temperature of the smoke-proof valve is 280 °C.

( 5 ) The smoke prevention system of the corridor is vertically set, and the indoor fire-fighting partition is set.

( 6 ) The mechanical smoke control system can be used in combination with ventilation and air conditioning systems but reliable fire protection measures must be used

( 7 ) Fire- fighting air ducts are safety-resilient life-saving systems in buildings : Life-saving protection systems that are mainly used for smoke extraction and positive pressure air supply in fires can generally be divided into different requirements levels of 1h , 2h , and 4h .

3 , ventilation and air conditioning

( 1 ) Ventilation system should be set up, horizontally set according to fire partitions, and be erected every five layers (not more than 5 layers);

( 2 ) When the ventilation and air conditioning system passes through the following conditions, install the fire damper 700C (through the fire partition wall, floor deformation joints, etc.).

Fire district

1. One type of building: 1,000 square meters; Second type of building: 1,500 square meters; Basement: 500 square meters;

2. When the high-rise buildings and podiums have firewalls and good fire protection measures, the maximum fire-prevention area shall not exceed 2,500 square meters;

3. High-rise buildings have escalators, upper and lower levels of communication, upper and lower open access stairs, etc.

4. The safety access door for each fire partition shall not be less than two, and the distance between the two safety doors shall not be less than 5 meters . Generally within 24 to 40 meters , the circular corridor is 10 to 20 meters ; the safety evacuation door is no more than 40 meters from any point in the room and no more than 15 meters from the indoor to interior doors .

5. The first floor of the fire exit corridor is 1100-1200 mm wide ; the door is 900-1300 mm and the door opens outwards. Outside the door 1 . There should be no stepping 104 in 4 meters and the fireproof rating of the fireproof curtain is generally 3 hours;

The buildings below the 6th , 18th and 18th floors shall not exceed 650 square meters in area and the number of households shall not exceed 8 households. There shall be smoke-proof stairwells and fire-fighting elevators;

7, fire elevator configuration: less than 1500 m2 provided a fire elevator, greater than 4500 square meters less than 1500 2, 4500 m2 three;

8. The fire elevators shall be installed in different fire partitions; the fire elevator front room shall not be less than 6 square meters;

9. Buildings with more than ten floors should be connected or recessed on the balcony in the unit.

Fire water supply and fire fighting equipment

1. A fire hydrant is installed in the fire elevator front room;

2 , fire-fighting pump room fire rating is 2 . Fire water tank floor thickness 15 mm, partition wall fire-resistant 2 hours, Class A fire door;

3 , high-rise buildings over 100 meters should be equipped with automatic sprinkler equipment.

other

1 , the fire resistance of the glass curtain should be fire-resistant for 1 hour;

2 , building deformation joints should be added fire protection layer;

3 , frameless glass curtain wall and partition glass curtain wall should be fire-resistant for 1 hour, there should be 800mm high solid wall;

4. The generator room can not store oil for more than 8 hours;

5. The distance between high-rise buildings is 13 meters and the group building is 6 meters ;

6. The width of the fire lane shall not be less than 4 meters ; the distance from the building shall not be less than 5 meters ; the height shall not exceed 4 meters ;

7. The deformation joints and metal structures of buildings shall be provided with fire protection layers;

The maximum allowable distance of 8 , 1st and 2nd building fire partitions is 150 meters and the area is 2500 square meters. Cable wells, pipeline wells, exhaust wells, smoke prevention wells should be separated on each floor.

The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.