Traditional Culture Encyclopedia - Traditional customs - Full text of fire protection code for building design (2)

Full text of fire protection code for building design (2)

Code for fire protection of building design (full text)

7.2.4 The partition wall in the building should be separated from the ground foundation of the building to the bottom foundation of the roof.

The wall between the door wall and the unit should be built to the bottom of the roof panel, and the fire resistance of the roof panel should not be less than 0.50h·h h.

7.2.5 The fire control room, fixed fire extinguishing system equipment room, fire water pump room, ventilation and air conditioning room, etc. attached to the building shall be separated from other parts by partition walls with fire resistance not less than 2.00h and 1.50h floor ... The ventilation room set in Class D and E factories shall be separated from other parts by partition walls with fire resistance not less than 1.00h floor.

7.2.6 When the cold storage uses combustible materials such as foam plastic and rice husk as the insulation layer in the wall, incombustible insulation materials should be used for horizontal fire separation of each layer. The fire resistance limit of the fire separation part should be the same as that of the floor.

The combustible insulation layer of the attic is separated from the wall of the cold storage by non-combustible wall.

7.2.7 The fire protection design of building curtain wall shall meet the following requirements:

1 The windowsill wall and the wall between windows shall be filled with incombustible materials. When the external wall is made of incombustible materials with fire resistance not less than 1.00h, the internal wall can be filled with incombustible materials;

2 For curtain walls without window partitions and windowsill walls, a non-combustible solid skirt wall with a fire resistance limit of not less than 1.00h and a height of not less than 0.8m should be set at the outer edge of each floor;

3 The gap between curtain wall and each floor and partition wall shall be sealed with fireproof sealing material.

7.2.8 Fire prevention measures should be taken for pipes that are easily deformed under the action of high temperature or flame in buildings, and the fire resistance limit should be no less than 2.00h·h h. ..

7.2.9 Elevator shafts shall be set independently. It is forbidden to lay flammable gas and Class A, B and C liquid pipelines in the hoistway, and cables and wires unrelated to the elevator shall not be laid. There should be no other holes in the shaft wall of the elevator shaft except the elevator door opening and ventilation hole. Elevator doors should not use fence doors.

Vertical pipeline wells such as cable wells, pipeline wells, smoke exhaust channels, exhaust channels and garbage channels shall be set independently; The shaft lining shall be incombustible, and the fire resistance limit shall not be lower than1.00h; The inspection door on the shaft wall shall be Class C fire door.

7.2. Cable wells and pipeline wells in10 buildings should be plugged with incombustible materials or fireproof plugging materials not lower than the fire resistance limit of this layer.

In the building, holes such as cable wells and pipeline wells communicating with rooms and walkways should be blocked with fireproof sealing materials.

7.2. 1 1 Fire prevention measures should be taken on the outer wall of the air duct between the fire dampers on both sides of the wall and floor and the smoke exhaust fire dampers.

7.4 Stairwells, Stairs and Doors

7.4. 1 The evacuation stairwell shall meet the following requirements:

The stairwell of 1 should have natural lighting and ventilation, and should be set by the external wall;

There should be no boiling water room, combustible storage room and garbage chute in the stairwell;

3 stairwells should not have protrusions or other obstacles that affect evacuation;

4 Class A, B and C liquid pipelines should not be laid in stairwells;

5 * * * The stairwell in the building should not be equipped with combustible gas pipes;

6 combustible gas pipelines and combustible gas meters should not be laid in the stairwell of residential buildings. When residential buildings must be installed, protective measures such as metal sleeves and devices to cut off gas sources should be taken.

7.4.2 In addition to the provisions in Article 7.4. 1 of this specification, the closed stairwell shall also meet the following requirements:

1 When natural lighting and ventilation are not available, it should be set according to the requirements of smoke-proof stairwells;

2 The first floor of the stairwell can include the walkway and lobby of the stairwell to form an enlarged closed stairwell, but it should be separated from other walkways and rooms by measures such as Class B fire doors;

3 In addition to the stairwell door, other doors and windows should not be opened on the inner wall of the stairwell;

4 High-rise workshops (warehouses), crowded public buildings and crowded multi-storey Class C workshops are provided with closed stairwells. The door leading to the stairwell should be Class B fire door, and should be opened in the evacuation direction;

5 Two-way spring doors can be used for the doors of closed stairwells in other buildings.

7.4.3 The smoke-proof stairwell shall meet the following requirements in addition to the relevant provisions in Article 7.4. 1 of this specification:

1 When natural lighting and ventilation are not available, the stairwell shall be provided with smoke prevention or exhaust facilities according to the provisions of Chapter 9 of this specification, and fire emergency lighting facilities shall be provided according to the provisions of Chapter 1 1 of this specification;

2 The entrance of stairwell should be fortified with smoke front room, open balcony or concave gallery. The smoke-proof front room can be used with the front room of the fire elevator room;

3 Foreroom usable area: public buildings should not be less than 6.0m2, and residential buildings should not be less than 4.5m2 Shared foreroom usable area: public buildings, high-rise factories and high-rise warehouses should not be less than 10.0m2, and residential buildings should not be less than 6.0m2.

4 The doors leading from the evacuation walkway to the front room and the front room to the stairwell should adopt Class B fire doors;

5 In addition to the stairwell door and the front room door, there should be no other doors and windows (except residential buildings) on the smoke-proof stairwell and the front indoor wall;

6 The first floor of the stairwell may include the walkway and lobby of the front room of the stairwell to form an enlarged smoke-proof front room, but it should be separated from other walkways and rooms by measures such as Class B fire doors.

7.4.4 The plane position of the evacuation stairwell of each floor in the building should not be changed.

In the stairwell of basement and semi-basement, the first floor should be separated from other parts by incombustible partition wall with fire resistance of not less than 2.00h, and should be directly connected with the outdoor. When it is necessary to open the door on the partition wall, Class B fire doors should be adopted.

Stairwells should not be used in basements, semi-basements and the first floor above ground. When stairwells must be used, incombustible partition walls and Class B fire doors with a fire resistance limit of not less than 2.00h should be used on the first floor to completely separate underground, semi-underground and aboveground parts, and obvious signs should be provided.

7.4.5 Outdoor stairs can be used as evacuation stairs when the following requirements are met:

1 The height of handrails should not be less than 1. 1m, and the clear width of stairs should not be less than 0.9m

2 The inclination angle should not be greater than 45? ;

Stairs and platforms shall be made of incombustible materials. The fire resistance of the platform should not be lower than 1.00h, and the fire resistance of the stair section should not be lower than 0.25h

4 The door leading to the outdoor stairs should adopt Class B fire doors and should be opened outdoors;

5 In addition to the evacuation doors, doors and windows openings should not be set on the walls within 2.0m around the stairs. Evacuation doors should not face the stairs.

7.4.6 The metal ladder can be used as the second exit of D and E workshops, but its clear width should not be less than 0.9m and its inclination angle should not be greater than 45? .

For Class D and Class E high-rise workshops, when the number of people working on each working platform does not exceed 2 and the total number of people working on each working platform does not exceed 10, open stairs can be adopted, or the clear width is not less than 0.9m and the inclination angle is not more than 60? The metal ladder doubles as an evacuation ladder.

7.4.7 Spiral stairs and fan-shaped steps are not applicable to evacuation stairs and stairs on evacuation passages. When necessary, the plane included angle formed by the upper and lower steps should not be greater than 10? The step depth at 25 cm from the handrail on each floor should not be less than 22 cm.

7.4.8 The horizontal clear distance between two stair handrails of indoor evacuation stairs in public buildings should not be less than 15cm.

7.4.9 Grade III fire-resistant buildings with a height greater than10.0m shall be provided with outdoor fire ladders leading to the roof. For outdoor fire fighting, ladders should not be installed. Facing the tiger window, the width should not be less than 0.6m, and it should be set at a height of 3.0m from the ground.

7.4. The setting of10 fire elevator shall meet the following requirements:

1 The fire elevator room shall be provided with a front room. The use area of the front room shall comply with the provisions of Article 7.4.3 of this specification, and the door of the front room shall adopt Class B fire doors;

Note: the fire elevator installed in the warehouse corridor, cold storage hall or granary working tower may not have a front room.

2 the front room should be set by the external wall, and the first floor should be set with an outlet or a channel with a length of less than or equal to 30.0m;

3 between fire elevator shaft and machine room and adjacent elevator shaft and machine room, non-combustible partition wall with fire resistance limit of not less than 2.00h should be adopted; When opening the door on the partition wall, a Class A fire door should be set;

4 On the outer wall of the first-floor fire elevator shaft, special operation buttons for firefighters should be set. The interior decoration of the fire elevator car should be made of incombustible materials, and a special fire intercom phone should be set inside;

5 Drainage facilities should be set at the bottom of the fire elevator, the volume of the drainage well should not be less than 2m3, and the displacement of the drainage pump should not be less than 10l/s ... The front door of the fire elevator machine room should be provided with water retaining facilities;

6 The load capacity of fire elevator should not be less than 800kg.

7 The running speed of the fire elevator should be calculated and determined according to the running time of no more than 60s from the first floor to the top floor;

8 waterproof measures should be taken for the power and control cables and wires of the fire elevator.

7.4. 1 1 There should be no shutter doors in the closed stairwell, smoke-proof stairwell, front room of fire elevator room and common front room in the building.

Evacuation walkways should be equipped with Class A normally open fire doors in the fire compartment.

7.4. 12 The evacuation doors in the building shall meet the following requirements:

1 The evacuation doors of civil buildings and factories should be opened in the evacuation direction. Except for Class A and Class B production rooms, when the number of people in a room does not exceed 60, and the average evacuation number per door does not exceed 30, the door opening direction is not restricted;

2. The evacuation doors of civil buildings and factories should be horizontal doors, and sliding doors, rolling doors, hanging doors and revolving doors should not be used;

3 The evacuation door of the warehouse should be a horizontal door that opens in the evacuation direction, and a sliding door or a rolling door can be set at the outer side of the first floor against the wall, but a and B warehouses should not use sliding doors or rolling doors;

4 Evacuation doors in crowded places where people need to be controlled to enter and exit at will at ordinary times, or external doors of residential buildings with access control system, should be ensured to be easily opened from the inside without using any tools such as keys in case of fire, and signs and use tips should be set in a prominent position.

8.3 Location of indoor fire hydrant, etc.

8.3. 1 DN65 indoor fire hydrants shall be provided for the following buildings in addition to the provisions in Article 8.3.4 of this specification:

1 The building area of the factory building (warehouse) is more than 300m2.

Stations, docks, airport terminals (ships and planes), exhibition buildings, shops, hotels, wards, outpatient buildings and library buildings with an area of more than 2.5000m3;

3.800-seat super-class and first-class theaters, theaters and cinemas of other levels, 1200-seat auditorium, gymnasium, etc.

4. Civil buildings such as office buildings, teaching buildings and non-residential residential buildings with more than 5 floors or 10000m3;

Indoor fire hydrant system should be set up in houses with more than 7 floors. When there are difficulties, only dry fire vertical pipes and indoor fire hydrants without DN65 can be set in fire hydrant box. The diameter of fire riser should not be less than DN65.

Note: Class D and E workshops (warehouses) with single-layer and multi-layer fire resistance rating of Grade I and II and less combustible materials, Class D workshops with fire resistance rating of Grade III and IV and building volume less than or equal to 3000m3, Class E workshops (warehouses) with building volume less than or equal to 5000m3, and grain warehouses and vaults are not equipped with indoor fire hydrants.

8.3.2 Indoor fire hydrants should be set for key brick-wood ancient buildings of national cultural relics protection units.

8.3.3 Fire hose reels shall be installed in crowded public buildings, and the scale of public buildings such as indoor fire hydrants shall be lower than the provisions in Article 8.3. 1 of this specification; Commercial service outlets with a building area of more than 200m2 should be equipped with fire hose reels or portable fire hoses.

8.3.4 There are no production and domestic water supply pipes for buildings and indoor buildings containing explosives that burn in water, and there are no indoor fire hydrants for other buildings whose outdoor fire water is taken from storage tanks and the building volume is less than or equal to 5000m3.

8.4 Indoor fire water consumption and fire water supply pipes, fire hydrants and fire water tanks

8.4. 1 Indoor fire water consumption shall be calculated and determined according to the following provisions:

1 When indoor fire hydrant system, automatic sprinkler system, water spray fire extinguishing system, foam fire extinguishing system or fixed fire monitor fire extinguishing system are installed in the building at the same time, the indoor fire water consumption shall be calculated by the sum of the water consumption of the above systems started at the same time as required; When the above fire fighting systems need to be started at the same time, the water consumption of indoor fire hydrants can be reduced by 50%, but not less than10l/s;

2. The water consumption of indoor fire hydrants should be calculated and determined according to the water column length enriched by water guns and the number of water guns used at the same time, and should not be less than the provisions in Table 8.4. 1;

3 The water consumption of water spray fire extinguishing system shall be determined according to the current national standard Code for Design of Water Spray Fire Extinguishing System GB502 19; The water consumption of automatic sprinkler system should be determined according to the current national standard Code for Design of Automatic Sprinkler System (GB50084). The water consumption of foam fire extinguishing system shall be determined according to the current national standards Code for Design of Low Multiplication Foam Fire Extinguishing System (GB50 15 1) and Code for Design of High Multiplication and Medium Multiplication Foam Fire Extinguishing System (GB50 196); the water consumption of fixed fire monitor fire extinguishing system shall be determined according to the current national standard Code for Design of Fixed Fire Monitor Fire Extinguishing System (GB50338).

8.4.2 The layout of indoor fire water supply pipeline shall meet the following requirements:

1 When the number of indoor fire hydrants is greater than 10, and the outdoor fire water consumption is greater than 15L/s, the fire water supply pipes shall be connected in a ring shape, and at least two water inlet pipes shall be connected with the outdoor pipe network or fire water pump. When one of the inlet pipes has an accident, the other inlet pipes should still be able to supply all fire water;

2 The high-rise workshop (warehouse) shall be equipped with an independent fire water supply system. Indoor fire vertical pipes should be connected into a ring;

3 indoor fire riser diameter should not be less than dn100;

4 Indoor hydrant water supply pipe network should be set separately from automatic sprinkler system pipe network; When the fire pump is used together, the water supply pipeline should be set separately in front of the alarm valve;

5 High-rise factory buildings (warehouses), factories (warehouses) with indoor fire hydrants and more than 4 floors, and public buildings with indoor fire hydrants and more than 5 floors, the indoor fire hydrant water supply system should be equipped with fire pump adapters.

The fire pump adapter should be set in an outdoor place convenient for fire engines to pass, and the distance from the outdoor fire hydrant or the water inlet of the fire pool should be15.0 ~ 40.0 m.

The number of fire pump adapters shall be calculated and determined according to the indoor fire water consumption. The flow of each fire pump adapter shall be calculated according to 10 ~ 15L/s;

6 Indoor fire water supply pipeline should be divided into several independent sections by valves. Single-storey factory buildings (warehouses) and public buildings should have no more than five fire hydrants out of service. For multi-storey civil buildings and other factories (warehouses), the arrangement of valves on the indoor fire water supply pipeline should ensure that the pipeline is not closed more than 1 riser during maintenance, but when more than three risers are set, two risers can be closed.

The valve should be kept normally open, with obvious opening and closing signs or signals;

7. When the indoor fire water and other water pipes reach the maximum hourly flow, they should still be able to ensure the supply of all fire water;

8 municipal water supply network that allows direct water absorption, when the production and domestic water consumption reaches the maximum and can still meet the indoor and outdoor fire water consumption, the fire pump should directly absorb water from the municipal water supply network;

9 Dry fire hydrant system can be used in non-heating workshops (warehouses) and other buildings in cold and cold areas, but a quick opening and closing device should be set on the water inlet pipe and an automatic exhaust valve should be set on the top of the pipe.

8.4.3 The layout of indoor fire hydrants shall meet the following requirements:

1 All floors of buildings with indoor fire hydrants shall be equipped with fire hydrants except the equipment floor without combustible materials.

Fire hydrants for modular and tower houses should be located in the stairwell on the first floor and the rest platforms on each floor. When it is really difficult to set up two fire risers, 1 fire riser can be set up, but double-port and double-valve fire hydrants must be used. The vertical pipe of dry fire hydrant should be provided with quick interface and check valve at the exit of the first floor to facilitate the water supply of fire engines;

Two fire hydrants should be set in the front room of the fire elevator room;

3 Indoor fire hydrants should be set in obvious positions and easy to operate. The height of the bolt mouth from the ground or operating base surface should be 1. 1m, and its outlet direction should be downward or 90? From the wall where the fire hydrant is installed. Angle; The distance between the bolt mouth and the inner edge of fire hydrant box should not affect the connection of fire hose;

The fire hydrant in the cold storage should be set in the hall or stairwell at room temperature;

5 The distance between indoor fire hydrants should be determined by calculation. The distance between indoor fire hydrants in high-rise workshops (warehouses), elevated warehouses and Class A and B workshops should not be greater than 30.0m m. The distance between indoor fire hydrants in other single-storey and multi-storey buildings should not be greater than 50.0m m.

6 Fire hydrants, water guns and hoses with uniform specifications should be used in the same building. The length of each hose should not be greater than 25.0 meters;

7 Indoor fire hydrants shall be arranged to ensure that the full water column of two water guns on the same floor of each fire zone reaches any part at the same time. For multi-storey warehouses with a building height of 24.0m or less and a volume of 5000m3 or less, 1 water gun can be used to enrich the water column and reach any part of the room.

The full water column of the water gun should be determined by calculation, and the total water column of Class A and Class B workshops, public buildings with more than 6 floors and workshops (warehouses) with more than 4 floors should not be less than10.0m; High-rise factories (warehouses), elevated warehouses, shops, gymnasiums, theaters, halls, exhibition halls, stations, docks, airport buildings, etc. The volume greater than 25000m3 shall not be less than13.0m; Other buildings, should not be less than 7.0m

8 For buildings such as high-rise factory buildings (warehouses) where the static pressure of high-rise fire water tanks can not meet the water pressure requirements of the most unfavorable fire hydrants, a button for directly starting the fire water pump should be set at each indoor fire hydrant, and protective facilities should be set;

9 when the outlet pressure of indoor hydrant bolt mouth is greater than 0.5MPa, decompression facilities should be set up; When the hydrostatic pressure is greater than 1.0MPa, the zonal water supply system should be adopted;

10 buildings with indoor fire hydrants, such as flat roofs, should be equipped with fire hydrants for testing and inspection.

8.4.4 Buildings with normal and high-pressure water supply systems and capable of ensuring the water quantity and water pressure of fire hydrants and automatic sprinkler systems at the most unfavorable points, or buildings with dry fire standpipes, do not need to set fire water tanks.

Buildings with temporary high-pressure water supply system should be equipped with fire water tanks (including air pressure water tanks, water towers and partitioned water tanks of partitioned water supply systems). The setting of fire water tank shall meet the following requirements:

1 gravity gravity fire water tank should be located at the top of the building;

2 The fire water tank shall store the fire water consumption of 10 minute. When the indoor fire water consumption is less than or equal to 25L/s and the calculated fire water consumption of the fire water tank is greater than 12m3,12m3 can still be used; When the indoor fire water consumption is more than 25L/s, and the calculated fire water consumption of the fire water tank is more than 18m3,18m3 can still be used;

3. When the water tank is shared with other water, technical measures should be taken to prevent the fire water from being used for other purposes;

4 After the fire, the fire water supplied by the fire pump should not enter the fire water tank;

Five fire water tanks can be set in different areas.

8.4.5 Permanent fixed signs shall be set at indoor fire hydrants and valves in buildings.

9 Smoke prevention and exhaust

9. 1 General provisions

9. 1. 1 Mechanical forced air supply or natural smoke exhaust outside the window can be used for smoke prevention in buildings.

The smoke exhaust in the building can adopt mechanical smoke exhaust mode or natural smoke exhaust mode with external windows.

9. 1.2 Smoke-proof stairwell and its front room, fire elevator front room or shared front room shall be provided with smoke-proof facilities.

9. 1.3 Smoke exhaust facilities shall be set in the following places:

1 above-ground premises with a building area of over 300m2 for Class C workshops; Class C workshops with more personnel and combustible materials or high-rise workshops with a height of more than 32.0 meters, and inner walkways with a length of more than 20.0 meters; Class D workshop with any floor construction area exceeding 5000m2;

2 Class C warehouses with an area greater than 1000m2;

3 * * * Buildings are often occupied by people or have more combustible materials, and the above-ground rooms with a construction area of more than 300m2; Internal walkways with a length greater than 20.0 meters;

4 atrium;

5. Located on the first, second and third floors, with a room construction area of more than 200m2, or located on the fourth floor or above, or underground, semi-underground places for singing, dancing, entertainment and projection entertainment;

6. Underground and semi-underground buildings with a total construction area of more than 200m2 or rooms with a construction area of more than 50m2, or basements and semi-basements, where people often stay or where there are many combustibles;

7. Evacuation walkways with a length greater than 40.0 meters in other buildings.

9. 1.4 The mechanical smoke exhaust system shall be set separately from the ventilation and air conditioning system. When used together, reliable fire safety measures must be taken and meet the relevant requirements of mechanical smoke exhaust system.

9. 1.5 The pipes, tuyeres and valves in the smoke control and extraction system must be made of incombustible materials. The smoke exhaust pipeline should adopt heat insulation and fire prevention measures or keep a distance of not less than 150mm from combustible materials.

The thickness of the smoke exhaust pipe shall comply with the relevant provisions of the current national standard "Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Engineering" GB50243.

9. 1.6 The wind speed in the mechanically pressurized air supply pipeline, smoke exhaust pipeline and air supply pipeline shall meet the following requirements:

1 When metal pipes are used, they shall not be greater than 20.0 m/s;

2 When nonmetallic pipes are used, it should not be greater than15.0m/s. ..

9.2 Natural smoke exhaust

9.2. 1 The following places shall be provided with natural smoke exhaust facilities:

1 A place with smoke exhaust facilities and natural smoke exhaust conditions according to Article 9. 1.3 of this specification;

2 Except for workshops (warehouses) with a building height of more than 50m, places with smoke prevention facilities and natural smoke exhaust conditions shall be set according to Article 9. 1.2.

9.2.2 In places with natural smoke exhaust facilities, the net area of natural smoke exhaust port shall meet the following requirements:

1 The front room of smoke-proof stairwell and fire elevator room shall not be less than 2.0m2, and the shared front room shall not be less than 3.0m2.

2. For the smoke-proof stairwell near the external wall, the total area of smoke exhaust windows that can be opened every five floors should not be less than 2.0m2

Atrium and theater stage should not be less than 5% of the building area of atrium and theater stage;

4 For other places, 2% ~ 5% of the construction area of the place should be taken.

9.2.3 When the front room and the shared front room of the smoke-proof stairwell adopt open balcony and concave corridor for smoke prevention, or when the front room and the shared front room have openable external windows with different orientations and the opening area meets the requirements of Article 9.2.2 of this specification, the smoke-proof stairwell may not be equipped with smoke prevention facilities.

9.2.4 As a window for natural smoke exhaust, it should be set above the external wall of the room or on the roof, and it should have a device that is easy to open. The horizontal distance between the natural smoke outlet and the farthest point of the smoke prevention area should not exceed 30.0 meters.

9.3 Mechanical smoke prevention

9.3. 1 Mechanical pressurized air supply and smoke prevention facilities shall be set in the following places:

1 There is no natural smoke exhaust condition in the smoke-proof stairwell;

2 front room or shared front room of fire elevator machine room without natural smoke exhaust conditions;

3 The smoke-proof stairwell has natural smoke exhaust facilities, and the front room without natural smoke exhaust conditions.

9.3.2 The pressurized air supply volume of mechanical pressurized air supply smoke prevention system shall be determined by calculation. When the calculation result is inconsistent with the provisions in Table 9.3.2, the larger value shall be taken.

1 1.3 fire emergency lighting and fire evacuation indication signs

1 1.3. 1 Civil buildings, workshops, and Class C warehouses shall be equipped with fire emergency lighting in the following parts except residential buildings:

1 Closed stairwell, smoke-proof stairwell and its front room, fire elevator front room or shared front room;

2 fire control room, fire pump room, self-provided generator room, power distribution room, smoke control room and other rooms that still need to work normally in case of fire;

Audience halls, exhibition halls, business halls, multi-function halls and restaurants with a building area of over 400m2, and studios with a building area of over 200m2;

4. Underground and semi-underground buildings with a building area of more than 300m2 or public activity rooms in basements and semi-basements;

5. Evacuation walkways in public buildings.

1 1.3.2 The illuminance of fire emergency lighting in the building shall meet the following requirements:

1 The minimum horizontal illumination on the ground of the evacuation walkway should not be less than 0.5lx

2 The minimum horizontal illumination on the ground in crowded places should not be lower than1.0lx;

3 The minimum horizontal illumination on the stairwell floor should not be less than 5.0lx

4 The fire emergency lighting in the fire control room, fire water pump room, self-provided generator room, power distribution room, smoke control room and other rooms that still need to work normally in case of fire should still ensure the illumination at normal lighting time.

1 1.3.3 The fire emergency lighting should be set on the upper part of the wall, the ceiling or the top of the exit.

1 1.3.4 Public buildings, high-rise workshops (warehouses) and Class A, B and C workshops shall be equipped with light evacuation signs along the evacuation walkways and directly above the evacuation doors in the safety exits and crowded places, and shall meet the following requirements:

1 should emergency exits and evacuation doors be used directly on it? Safety exit? As an indicator;

2 The light evacuation indication signs along the evacuation walkway should be set below the ground 1.0m at the wall of the evacuation walkway and its corner, and the distance between the light evacuation indication signs should not be greater than 20.0m For bag-shaped walkways, it should not be greater than10.0m.: At the corner of the aisle, it should not be greater than 1.0m, and its indicating signs should comply with the relevant provisions of the current national standard "fire safety signs" GB 13495.

1 1.3.5 The following buildings or places should be equipped with light evacuation signs or light storage evacuation signs that can maintain visual continuity on the ground of their internal evacuation walkways and main evacuation passages:

1 exhibition building, with a total construction area of over 8,000m2;

Above-ground shops with a total construction area of over 5,000 square meters;

Underground and semi-underground shops with a total construction area of over 500m2;

4. Song and dance entertainment places and entertainment places;

5./kloc-cinemas and theaters with more than 0/500 seats and gymnasiums, auditoriums or auditoriums with more than 3,000 seats.

1 1.3.6 The fire evacuation signs and fire emergency lighting set in the building shall not only comply with the provisions of this specification, but also comply with the relevant provisions of the current national standards GB 13495 in fire safety signs and GB 17945 in Fire Emergency Lighting. ;