1. The building height of residential buildings with nine floors and below (including commercial service outlets on the ground floor) shall not exceed 24m.
Other civil buildings and single-storey public buildings with a building height exceeding 24 meters;
Two, single-storey, multi-storey and high-rise industrial buildings;
Third, underground civil buildings.
This specification does not apply to explosive factories (depots), fireworks factories (depots), windowless workshops, civil air defense projects, underground railways and other places.
Lower Africa is a production area for civil buildings, oil refineries and petrochemical plants.
Note: Building height refers to the height from the outdoor ground of a building to the top of its parapet or cornice. Watchtower, cooling tower, water on the roof
Box room, microwave antenna room, elevator room, exhaust room and stair exit room are not included in the building height and floor number.
The roof of the basement and semi-basement of the building is not more than 1.5m higher than the outdoor ground, which is not included in the number of floors.
Maximum allowable layers of fire resistance grade. Remarks between fire zones
Maximum allowable length (m) Maximum allowable building area of each floor (m2)
Grade I and Grade II conform to Article 1.0.2 of this specification and 150 2500 1. The length and area of the audience hall and exhibition hall of gymnasiums, theaters and exhibition halls can be determined according to needs. 2 nurseries, kindergartens and other places for children's activities and children's amusement halls should not be set up in more than four floors or underground or semi-underground buildings.
Three floors and five floors 100 1200 1. Nurseries, kindergartens, children's rooms, children's play halls and other places for children's activities, the inpatient departments of hospitals and nursing homes should not be located in three or more floors or underground or semi-underground buildings. 2. Shops, schools, cinemas, theaters, auditoriums, canteens and vegetable markets should not exceed two floors.
60,600 schools, canteens, vegetable markets, nurseries, kindergartens and hospitals shall not exceed 1 floor, and vegetable markets shall not exceed 2 floors.
Note: ① Important public buildings should adopt buildings with Grade I and II fire resistance. If you use shops, schools, canteens and vegetable markets.
It is difficult to build a building with the first or second fire resistance rating, and a building with the third fire resistance rating can be used.
(2) The length of the building refers to the sum of the lengths of the center lines of all sections of the building. If there is an irregular plane, it will be different.
When measuring, a larger value should be used.
(3) When an automatic fire extinguishing system is installed in a building, the maximum allowable building area of each floor can be doubled according to this table. When set locally,
The increased area can be calculated by doubling the local area.
(4) The fire partition should be separated by a firewall. If it is difficult, it can be separated by a fire shutter and a water curtain.
⑤ Nurseries, kindergartens, children's amusement halls and other places for children's activities should be built independently. When it must be installed in other buildings
When, should set up independent entrances and exits.
[Supplementary explanation] This article is a revision of the original article.
1. At present, there are many phenomena that children's playgrounds are located on the upper floors of buildings in commercial service facilities in some large and medium-sized cities. This is very dangerous because it is difficult for babies and children to evacuate in the fire. Therefore, this article specifies the location of these places.
Two. Note 5 is a new provision. The independent construction of nurseries, kindergartens and children's amusement places takes into account the lack of escape and self-help ability of infants. If these places are built in other buildings, they may be threatened by fires in other parts of the building. Therefore, this article stipulates that such places should be built independently. At the same time, considering the differences in local conditions, it is stipulated that independent entrances and exits must be set in other buildings.
Article 5. 1. 1A Song and dance entertainment projection places (hereinafter referred to as song and dance entertainment projection places) such as song and dance halls, video halls, nightclubs, projection halls, karaoke halls (including restaurants with karaoke functions), amusement halls (including electronic amusement halls), saunas (excluding bathing parts) and internet cafes. , should be set in the first and second class fire-resistant buildings. When it must be set on other floors of the building, it shall meet the following requirements:
First, it should not be located on the second floor or below. When set in the basement, the basement floor and the outdoor entrance floor
The height difference should not be greater than10m; ;
Two, a hall, room construction area should not be greater than 200m2；;
Third, smoke control facilities should be set up. For underground rooms, windowless rooms or above-ground rooms with fixed sashes, and more than
The 20-meter evacuation walkway without natural smoke exhaust or the one with direct natural ventilation but over 40 meters in length should be equipped with mechanical smoke exhaust.
Stone.
[Description] Add a new clause.
In recent years, there have been many casualties and fires in song and dance entertainment places. In order to protect personal safety and reduce property losses,
Song and dance entertainment places make corresponding regulations.
Second, rooms in song and dance entertainment venues are not conducive to evacuation if they are set on both sides or at the end of the bag-like walkway. such as
There is a ballroom somewhere at the end of the bag-shaped walkway. During the fire, the evacuation exit of the ballroom was blocked by fireworks, and people could not escape, resulting in 13 people.
Death.
Three, "one hall, room" refers to the independent entertainment places for song and dance entertainment. Its construction area is limited to 200 square meters, so as to
The fire was confined to a certain area to reduce casualties. See Article 7.2.3 for the distance between these places and other places.
Rules.
Four, most fire cases show that the vast majority of people died of suffocation due to inhalation of toxic smoke. So, right?
This kind of places have made smoke control requirements.
V. Maximum number of indicators in Article 5.3. 12.
6. Articles 8.7. 1B and 10.3. 1B of this specification also provide automatic sprinkler system and automatic fire alarm system for such places.
Rules.
VII. Article 10.2.8 stipulates evacuation signs.
Article 5. 1.3 Fire partitions of underground and semi-underground buildings shall be separated by firewalls, and the construction area of each fire partition shall not be greater than 500m2. When installing automatic fire extinguishing system, the maximum allowable building area of each fire zone can be increased to 1000m2. In the case of local setting, the increased area should be calculated as twice the local area.
[Supplementary explanation] This article is a revision of the original article.
1. The underground and semi-underground buildings mentioned in this article include not only the basements and semi-basements attached to buildings, but also the basements and semi-basements built separately.
Underground and semi-underground construction engineering. The fire fighting situation of underground and semi-underground buildings is very different from that of above-ground buildings. Mainly in
It is difficult for people to evacuate and firefighters to put out the fire. Therefore, this article stipulates that the maximum allowable building area of each fire zone shall not exceed.
The regulation of 500m2.
Two, the fire partition should be separated by a firewall, to ensure the reliability of the underground building fire partition.
Article 5. 1.3A Underground shops shall meet the following requirements:
First, the business hall should not be located on the third floor or below, and should not operate and store Class A and Class B warehouses with fire hazards.
Commodities with product attributes;
Two, when the automatic fire alarm system and automatic sprinkler system are set up, and the interior decoration of the building conforms to the current national standard "Building"
In the Code for Fire Protection Design of Interior Decoration (GB50222), the maximum allowable building area of each fire protection zone of its business hall can be increased to
2000 square meters. When the total construction area of local underground shops is more than 20000m2 square meters, it should be separated by firewall, and doors and windows should not be opened on the firewall.
Mouth;
Third, smoke control facilities should be set up. The design of smoke control facilities should be based on the current national standard "Civil Air Defense Engineering Design Prevention"
Code for Fire Protection "GB50098.
[Description] Add a new clause.
A, fire risk is the storage nature of Class A and B articles, which are easy to burn and difficult to put out, so the business hall is not strictly regulated.
It must be operated, and such items shall not be stored in the warehouse.
Second, when the commercial business hall is located on the third floor and below, the fire load is large due to the large number of goods operated and stored.
The vertical evacuation distance is long, and it is difficult to extinguish fire, remove smoke and evacuate people in case of fire, so it is not appropriate to set regulations.
It's on the third floor and below. The regulation of "not suitable" is based on the fact that it can be set according to the specific situation if dealing in incombustible or flame retardant articles.
It's on the third floor and below.
Three, in order to minimize the harm of fire, taking into account the needs of use and management, and referring to the relevant standards of foreign countries and China.
According to the personnel density and management situation in the mall, the total construction area of underground shops should not be greater than 20000m2, so it should be adopted.
There is a firewall, and the firewall should not be restricted by open doors and windows. The total construction area includes business area, storage area and others.
Supporting service areas, etc. This regulation is to solve the problem of increasing scale of underground shops in practical projects and take preventive measures.
Fire shutter doors are separated by fire, which connects tens of thousands of square meters of underground shops, which is not conducive to safe evacuation and fire fighting.
When there are openings in the upper and lower floors of the store, escalators or open stairs are connected with each other, the determination of fire zone has been stipulated in other provisions of this specification.
Corresponding regulations.
Four, because this specification does not specify the smoke control in buildings, but the smoke control in underground shops is very important for evacuation and rescue.
Important. Therefore, underground shops need smoke control facilities. The design requirements of smoke control facilities are the same as those of civil air defense projects.
Point, so this provision should be implemented according to the current national standard "Code for Fire Protection Design of Civil Air Defense Engineering".
V. Article 10.2.8 stipulates evacuation signs.
Article 5.3. 1: The number of safety exits for public buildings and corridor-style residential buildings shall not be less than 2, but one of them may meet the following requirements.
A:
A, a room area of not more than 60m2, and the number of no more than 50 people, can set up a door; The room at the end of the aisle
(Except for nurseries and kindergartens), when the straight-line distance from the farthest point to the door of the house does not exceed 14m, and the number of people does not exceed 80, it is also true.
Doors that open outward can be set, but the net width of the doors should not be less than1.40m. The evacuation exits of song and dance entertainment places should not be less than.
Two. When the building area is not more than 50m2, 1 evacuation exit can be set.
Buildings on the second, second and third floors (except hospitals, sanatoriums, nurseries and kindergartens) meet the requirements in Table 5.3. 1 and can be set up.
Evacuate the stairs.
Table 5.3. 1 Conditions for setting evacuation stairs
Maximum building area (m2) of each floor with fire resistance rating.
500 on the first, second, second and third floors. The sum of people on the second and third floors shall not exceed 100.
Third, second and third floors 200 The sum of the number of people on the second and third floors shall not exceed 50.
There are 200 people on the fourth floor and the second floor, and the number of people on the second floor shall not exceed 30.
Three, an area of not more than 200m2, the number of not more than 50 people, can set up a single-story public * * * building (except nurseries and kindergartens).
A safety exit that goes straight to the outside.
Four, there are not less than two evacuation stairs, the first and second class fire resistance rating of public buildings, such as the top floor of the local rise, its higher part.
The number of floors shall not exceed two, and the area of each floor shall not exceed 200m2. When the total number of people does not exceed 50, a staircase can be set up, but it should be set up separately.
Exit through the flat roof.
[Supplementary explanation] This article is a revision of the original article.
There are not less than two evacuation exits in song and dance entertainment places, considering that when one of the evacuation exits is blocked by fireworks.
At this time, people can escape through another evacuation exit. For a hall with a building area of less than 50m2, it has a small area and a large number of people.
Less, evacuation is easier, and evacuation exits can be set up.
Article 5.3.6 There shall be no less than two fire exits in each fire compartment of underground and semi-underground buildings. However, when the area does not exceed 50m2 and the number of people does not exceed 10, 1 can be set.
When two or more fire zones are adjacently arranged in underground and semi-underground buildings, each fire zone can use a fire door leading to the adjacent zone as the second safety exit on the firewall, but each fire zone must have 1 safety exits leading to the outside.
For underground and semi-underground buildings with no more than 30 people and a building area of no more than 500m2, vertical metal ladders can be used as the second exit.
Mouth.
There should be no less than two evacuation exits for song and dance entertainment and entertainment places. When the building area is not more than 50m2, 1 evacuation exit can be set.
The total width of the exit and evacuation exit shall be calculated and determined according to the number of people passing not less than 1.0m/ 100;
Note: The stairwell in the basement and semi-basement should be separated from other parts on the first floor by a partition wall with a fire resistance limit of not less than 2.00h h..
And should be through the outdoor, when it is necessary to open the door on the partition wall, fire doors not lower than Grade B should be adopted.
The basement or semi-basement and the first floor above ground should not use stairwells. When stairwells must be used, they should be located on the first floor and underground or semi-basement.
The entrance and exit of the basement should be separated from the Class B fire door by a partition wall with a fire resistance limit of not less than 2.00h, and should be clearly marked.
[Supplementary explanation] This article is a revision of the original article.
First, the provision that the total width of evacuation exits in song and dance entertainment places should be calculated and determined according to the index of evacuation number of 100 people has been added.
Two, song and dance entertainment venues and entertainment venues, the exit of each hall is not less than two, considering one of the evacuation.
When the entrance is blocked by fireworks, people can escape through another evacuation exit. For a hall with a building area of less than 50m2, the area is not large.
The number of people is small, so it is easier to evacuate, and evacuation exits can be set up.
Third, if there is no effective separation between the underground and the ground, it is easy to cause the underground fire to spread to the above-ground buildings. shopping center
A fire that killed 309 people in a four-story ballroom is a typical example. In order to prevent underground smoke and flames from spreading to other higher floors,
At the same time, it is necessary to prevent the people above from straying into the basement during evacuation. This article provides separation measures and indication signs between basements.
Rules.
There are similar provisions in relevant foreign standards, for example, the United States "Unified Building Code" stipulates that the exit stairs of the basement should be directly outside the building.
Department, should not go to the first floor. The French Code for Safety and Fire Prevention of Public Buildings also stipulates that the above-ground and underground evacuation stairs should be disconnected.
Article 5. 3. 6 The building shall be provided with safety exits or evacuation exits. The horizontal distance between the nearest edges of two adjacent safety exits or evacuation exits in the building should not be less than 5.0m
The plane position of the evacuation stairwell on each floor shall not be changed (unless otherwise specified in this specification).
[Description] Add a new clause.
First, the setting of safety exits and evacuation exits is stipulated to avoid setting a distance between safety exits or room exits.
Too close, causing evacuation and congestion. The export distance is based on the actual situation in China and the relevant foreign standards.
It's been fixed. For example, the French Code for Safety and Fire Prevention of Public Buildings stipulates that the distance between two evacuation doors should not be less than 5 m; Australia "Australia
According to the Australian Building Code, the distance between two evacuation exits of a Class 9b building (that is, a public gathering place) should not be less than 9m.
Second, the plane position of the evacuation stairwell on each floor should not be changed to ensure smooth, rapid and safe evacuation.
Article 5.3.7 The indoor evacuation stairs of public buildings shall be provided with stairwells. Indoor evacuation stairs in ward buildings of hospitals and sanatoriums, multi-storey hotels with air-conditioning systems, and other public buildings with more than five floors should be provided with closed stairs (including the first floor enlarged closed stairs).
Closed stairwells should be set for buildings above 3 floors in song and dance entertainment and entertainment places.
Underground shops and underground buildings with singing, dancing, entertainment and entertainment places, with three or more floors underground, one or two floors underground and the height difference between the indoor floor and the outdoor entrance is greater than 10m, should be equipped with smoke-proof stairwells; Other underground shops and underground buildings with song and dance entertainment places can be equipped with closed stairwells, and the doors of stairwells should be no less than Class B fire doors. ..
Note: ① A tower residence with more than six floors should be provided with a closed stairwell, which is not required if the door adopts a Class B fire door.
(2) If the main staircase in the lobby of the public * * * building is not included in the total evacuation width, there is no stairwell.
[Supplementary explanation] This article is a revision of the original article.
Underground shops and buildings with singing, dancing, entertainment and entertainment places are crowded and difficult to evacuate. In order to prevent the fire from spreading,
Buildings with song and dance entertainment, entertainment places and underground shops on the ground and underground, with closed stairs and smoke-proof stairwells.
Get ready.
Article 5.3. 12 Total width of stairs, walkways and evacuation doors on the first floor of civil buildings such as schools, shops, office buildings, waiting rooms (boats), song and dance entertainment places. It shall be calculated according to the number of evacuees and the net width index not less than that specified in Table 5.3. 12.
Table 5.3. 12 gives the clear width index of stair doors and walkways (m/ 100 people).
Layer fire resistance rating
One, two, three, four
The first and second floors
Three - story building
four layers
0.65
0.75
1.00
0.75
1.00
1.25
1.00
-
-
Note: ① The total width of evacuation stairs on each floor shall be calculated according to the provisions in this table. When the number of people in each floor is different, its total width can be calculated according to the floor.
The total width of the lower stairs is calculated according to the number of people in the upper floor with the largest number of people;
(2) the total width of evacuation doors and walkways on each floor shall be calculated according to the provisions of this table;
(3) The total width of the outer door on the ground floor shall be calculated according to the number of people on the floor or above, regardless of the evacuation of people upstairs.
Outside the door, can be calculated according to the number of people in this layer;
(4) The number of people evacuated from the video hall and projection hall shall be calculated according to the construction area of the place 1.0 person /m2; Other song and dance entertainment
The evacuation number of entertainment places should be calculated according to the construction area of the place at 0.5 people/square meter.
[Supplementary explanation] This article is a revision of the original article.
First, in order to ensure the safety and reliability of the evacuation design of song and dance entertainment places, this article has increased the provisions of such places.
Second, in order to ensure the safe evacuation of people in song and dance entertainment places, according to the actual situation in China and referring to relevant foreign standards,
The calculation index of the number of people in these places is stipulated. The American NFPA 10 1 Life Safety Code stipulates the personnel density index of such places.
Fixed: there are no fixed seats and less concentrated meeting places, such as auditorium, chapel, dance floor and ballroom. 1.54 persons /m2, meeting.
The room, dining hall, banquet hall, exhibition hall, gym or lounge is 0.7 1 person /m2, and the personnel density index is calculated according to the net area of the place.
Absolutely.
Article 7.2.3 The operating rooms of hospitals, song and dance entertainment places, nurseries and kindergartens attached to residential buildings should be separated from other places by incombustible walls with a fire resistance of not less than 2.00h and floors with a fire resistance of not less than1.00 h. When doors must be opened on the walls, fire doors with a fire resistance of not less than Class B should be set.
[Supplementary explanation] This article is a revision of the original article.
According to the actual situation of fire in song and dance entertainment places, the separation requirements of such places have been increased. Firewalls are not required for such places, but considering that such places are generally rebuilt, a partition wall with a fire resistance limit of not less than 2.00h is used to separate them from other places.
Yes, it's difficult to isolate through a firewall. In order to solve this practical problem, the fire prevention in such places has been strengthened.
Separated, so this article provides for the use of a partition wall with a fire resistance limit of not less than 2.00h to be separated from other places. The fire protection requirements of room partition walls in such places have been stipulated in this specification, and this article is no longer stipulated.
Article 8.7. 1A Underground shops with a building area of more than 500m2 shall be equipped with automatic sprinkler systems.
Article 8.7. 1B The following song and dance entertainment places shall be equipped with automatic sprinkler systems:
A, set in the underground, semi underground;
Two, set in the first, second and third floors of the building, and the construction area is more than 300m2；;
Three, set in the ground four floors and above the building.
[Description] Articles 8.7. 1A and 8.7. 1B are supplements to Article 8.7. 1 of the original specification.
Automatic sprinkler system has a high success rate in controlling and extinguishing the initial fire of buildings, and has been widely used abroad for a long time.
China is also widely used. Because of the fire danger of underground shops and song and dance entertainment places, the building area is large.
In the 500m2 underground workshop and in several cases, the setting rules of automatic sprinkler system are formulated.
Settings.
Article 10.2.8 Evacuation walkways and doors of ward buildings, theaters, gymnasiums, multi-functional auditoriums, etc. Hospitals should be equipped with light evacuation signs.
Light-emitting evacuation signs should be set on the ground or near-ground walls of the evacuation walkways and main evacuation passages in song and dance entertainment places and underground shops. [Supplementary Note] This article is a supplement to Article 10.2.8 of the original specification.
First, the reasonable setting of evacuation signs plays an important role in the safe evacuation of personnel. The practical application at home and abroad shows that in evacuation
Light-emitting evacuation signs are set on the ground or near-ground walls of walkways and main evacuation passages, which plays a good role in safe evacuation.
With it, it can more effectively help people identify the evacuation location and direction in time under the condition of heavy smoke, and act quickly according to the luminous evacuation instructions.
Evacuate smoothly to avoid casualties. Therefore, the provisions of this article are formulated.
Two, this article refers to the "luminous evacuation signs" including electroluminescence (such as lighting, electronic display, etc ... ) and photoluminescence.
(such as optical storage and self-luminescence). These evacuation signs are suitable for song and dance entertainment places and underground large space places.
Use of auxiliary evacuation signs.
Article 10.3. 1A Underground shops with a building area of more than 500m2 shall be equipped with automatic fire alarm devices.
Article 10.3. 1B The following song and dance entertainment places shall be equipped with automatic fire alarm devices:
A, set in the underground, semi underground;
Two, set in the ground four floors and above the building.
[Description] Articles 10.3. 1A and 10.3. 1B are supplements to articles 10.3. 1 of the original manual.
Underground shops with a building area of more than 500m2, as well as places for singing, dancing, entertainment and projection entertainment located underground, semi-underground or above the ground, should be equipped with automatic fire alarm devices regardless of the building area. This regulation is based on the fact that the above-mentioned places are densely populated and have great fire risk, so it is necessary to find them early, give an alarm early and evacuate them in time.
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Code for fire protection design of buildings
(200 1 draft abstract)
catalogue
8 fire water supply and fire extinguishing equipment
8. 1 General provisions
8.2 Outdoor fire water consumption
8.3 Outdoor fire water supply pipes and outdoor fire hydrants
8.4 Water consumption of indoor fire water supply pipes and hydrants
8.5 Indoor fire water supply pipes, indoor fire hydrants and indoor fire water tanks
8.6 Location of automatic fire extinguishing system
8.7 fire pool and fire pump room
8 fire water supply and fire extinguishing facilities
8. 1 General provisions
8. 1. 1 The design of fire water supply and fire extinguishing facilities should be based on comprehensive factors such as building type and importance, fire combustion characteristics and fire risk.
8. 1.2 Urban planning and design must include municipal fire water supply system. City tap water should be used as fire water supply source. Utilize natural water sources
At that time, there should be reliable water intake facilities to ensure the fire water consumption and fire water intake needs during the dry season or freezing period.
The guarantee rate of fire water source shall meet the following requirements:
1 When the urban planning population is not less than 50,000, it should not be less than 97%;
2 When the urban planning population is less than 50,000, 90% can be adopted.
8. 1.3 urban fire water supply is planned and designed by the urban tap water supply department in conjunction with the local fire supervision department, and the urban tap water supply department is responsible for organizing the implementation and daily management.
Note: Urban fire water supply is suitable for cities with a population of not less than 3,000. When the population is less than 3000, it should be
Fire protection should be considered in residential quarters or buildings.
8. 1.4 In the design of industrial and civil buildings, the outdoor fire water supply system must be designed at the same time. Fire water can be supplied by urban water supply network, natural water source or fire pool. When using natural water sources, the guarantee rate should not be less than 97%, and reliable water intake facilities should be set up.
Class E factory buildings or residential areas with a fire resistance rating of not less than Grade II, a volume of not more than 3 000m3, no more than 500 people and a building of not more than 2 floors need not be provided with fire water supply.
8. 1.5 When high-pressure or temporary high-pressure water supply system is used for outdoor fire water supply in industrial and civil buildings, the water supply pressure in the pipeline should be able to ensure the maximum water consumption. When the water gun is at the top of any building, the water column of the water gun should not be less than10.0m; When using low-pressure water supply system, the outlet water pressure of outdoor fire hydrant should not be less than 0. 1MPa (outdoor ground).
Note: 1 When calculating the water pressure, a water gun with a nozzle diameter of 19mm and a lining fire water with a diameter of 65mm and a length of 120.0m should be used.
Belt, the calculated flow of each water gun should not be less than 5L/s;
2 The pressure of high-pressure or temporary high-pressure water supply system of high-rise workshop (warehouse) should meet the most unfavorable indoor fire fighting equipment.
Water pressure requirements;
3 The design flow rate of hydrant water supply pipeline should not be greater than 2.5m/s. ..
8. 1.6 The low-pressure fire water supply system of industrial and civil buildings can be merged with the production and living water supply pipeline system. When the production and domestic water consumption reaches the maximum, all fire water consumption should still be guaranteed. If production accidents are not caused, production water can be used as fire water, but there should be no more than two valves for converting production water into fire water, which should be located in an easy-to-operate place with obvious signs.
Independent fire water supply pipes should be used for indoor fire water supply of high-rise workshops (warehouses).
8. 1.7 fire safety signs shall be set up for fire control facilities near urban roads and inside and outside buildings. Fire safety signs should comply with the current national standard "fire safety signs" GB 13495.
8.2 Layout of urban fire water consumption, fire hydrant and fire water supply pipeline
8.2. 1 Urban outdoor fire water consumption shall include the outdoor fire water consumption of residential areas, factories, warehouses, yards, storage tanks or storage tank areas and civil buildings, and shall be determined according to the number of fires and the water consumption for fighting a fire at the same time. The number of simultaneous fires in cities and residential areas and the water consumption for extinguishing fires should not be less than the provisions in Table 8.2. 1.
Table 8.2. 1 Water consumption for outdoor fire fighting in cities and residential areas
Number of people (10,000 people) Number of fires that occur at the same time (times) Water consumption for one fire extinguishing (L/s)
≤ 1.0 1 10
≤2.5 1 15
≤5.0 2 25
≤ 10.0 2 35
≤20.0 2 45
≤30.0 2 55
≤40.0 2 65
≤50.0 3 75
≤60.0 3 85
≤70.0 3 90
≤80.0 3 95
≤ 100.0 3 100
8.2.2 Municipal fire hydrants shall be set on roads within the scope of urban planning. The arrangement of fire hydrants shall meet the following requirements:
1 municipal fire hydrants are set along the road. When the road width is greater than 60.0m, municipal fire hydrants should be set on both sides of the road; stride
Municipal fire hydrants should be added near the intersection.
2 Municipal fire hydrants should be divided into three specifications: DN 100, DN 150 and DN200. When the urban water supply network is a branch network, it should be adopted.
The fire hydrant adopts DN 150 or DN200.
3 The protection radius of each hydrant should not be greater than 150m, and the distance between hydrants should not be greater than 120m.
4 municipal fire hydrants should use ground fire hydrants. When using underground fire hydrants, obvious signs should be set on the ground or nearby.
Pool.
5 fire hydrant is not more than 2.0m from the roadside and not less than 5.0m from the external wall of the house.
8.2.3 ..... (Some contents are missing)
8.3 Outdoor fire water consumption, fire water supply pipes and fire hydrants
8.3. 1 When the outdoor fire-fighting water consumption of factories, warehouses, yards, storage tanks or storage tank areas and civil buildings is inconsistent with the results calculated according to this article and Article 8.3.2 of this specification, the maximum value shall be taken.
1 The number of simultaneous fires in factories, warehouses, storage yards, storage tanks or storage tank areas and civil buildings should not be less than the table.
8.3. 1- 1; The outdoor fire water consumption of factories, warehouses and civil buildings shall not be less than that specified in Table 8.3. 1-2;