U – Maximum protection area of unit fire extinguishing level in Class A or B fire places (m2/A or m2/B).
3) When the building area of the public part on each floor of the residential building exceeds 100 ㎡, one 1A portable fire extinguisher shall be equipped; One 1A portable fire extinguisher shall be added for every 100 ㎡ increase.
2) Luminous signs indicating the location of fire extinguishers with visual obstruction shall be set up.
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Installation of fire extinguisher hook, bracket and other accessories 1) After the installation of hook and bracket, it can bear the static load of 5 times of portable fire extinguisher (when the mass of 5 times of portable fire extinguisher is less than 45kg, it shall be calculated as 45kg), and after 5 minutes of bearing, there will be no loosening, falling off, fracture and obvious deformation.
The fire extinguisher box shall not be locked.
6) The type of fire extinguisher shall match the type of fire in its place.
2) The maximum protection distance of fire extinguishers installed in Class B and C fire places shall comply with the provisions in the following table.
5) Fire extinguishers shall not be set at places beyond their service temperature range.
4) The installation height of the hook and bracket shall meet the requirement that the distance between the top of the portable fire extinguisher and the ground shall not be more than 1.50m, and the distance between the bottom and the ground shall not be less than 0.08m.
3) The hook and bracket of the clamping belt are provided, and the opening mode of the clamping belt can be seen from the front.
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The portable fire extinguisher should be set in the fire extinguisher box or on the hook and bracket, and its top should not be higher than 1.50m from the ground; The height from the bottom to the ground should not be less than 0.08m.
4) The maximum protection distance of fire extinguishers in Class E fire places shall not be lower than that specified for Class A or B fires in the place.
4) The fire extinguishing agent types of different types of fire extinguishers configured in the same configuration unit are not incompatible.
N – the number of fire extinguishers set in the calculation unit (number).
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S – protection area of calculation unit (m2).
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The maximum protection distance of fire extinguishers 1) The maximum protection distance of fire extinguishers set in Class A fire places shall comply with the provisions of the following table.
3) The maximum protection distance of fire extinguishers in Class D fire places shall be determined according to specific conditions.
K – correction factor.
2) When the hazard level and fire type of each place in a floor or a horizontal fire compartment are different, they should be considered as different calculation units.
The value of the correction factor is as follows: 2) The minimum required fire extinguishing level of the calculation unit for entertainment and entertainment places, Internet cafes, shopping malls, temples and underground places shall be calculated according to the following formula: Q=1.3K * S/U3) The minimum required fire extinguishing level of each fire extinguisher setting point in the calculation unit shall be calculated according to the following formula: Qe=QN, where Qe – the minimum required fire extinguishing level (A or B) of each fire extinguisher setting point in the calculation unit.
② When two or more portable fire extinguishers are adjacent to each other on hooks and brackets, one of them can be taken at will.
Installation of fire extinguisher box 1) The fire extinguisher box shall not be blocked, locked or tied.
5) The type, specification, fire extinguishing level and quantity of fire extinguishers in the configuration unit meet the requirements of fire protection design documents that have passed the fire protection design review and filing inspection.
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General requirements for basic configuration of fire extinguishers 1) The number of fire extinguishers configured in a calculation unit shall not be less than 2.
The opening angle of the door of the open-door fire extinguisher box shall not be less than 160 °, and the opening angle of the flap of the flip type fire extinguisher box shall not be less than 100 °.
When necessary, corresponding protective measures shall be taken.
General requirements for fire extinguisher setting 1) The fire extinguisher shall be set at a place with obvious location and easy access, and shall not affect the safe evacuation.
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3) The installation height of the wall-mounted fire extinguisher box shall be determined according to the requirement that the distance between the top of the portable fire extinguisher and the ground is not more than 1.50m, and the distance between the bottom and the ground is not less than 0.08m.
3) The same calculation unit shall not cross the fire compartment and floor.
2) The number of fire extinguishers at each setting point should not be more than 5.
2) The door of the fire extinguisher box shall be opened easily and flexibly, and the safe evacuation of personnel shall not be blocked after opening.
3) The fire extinguisher shall be placed firmly and its nameplate shall face outward.
When the fire extinguisher is set outdoors, corresponding protective measures shall be taken.
Installation and setting of fire extinguisher 1.
The fire extinguisher shall not fall when the clamping belt is opened.
The calculation unit of fire extinguisher configuration design is divided into 1) When the hazard level and fire type of each place in a floor or a horizontal fire compartment are the same, it can be used as a calculation unit.
4) Fire extinguishers should not be set in wet or highly corrosive places.
The minimum allocation basis of fire extinguishers 1) The minimum allocation basis of fire extinguishers in Class A fire places 2) The minimum allocation basis of fire extinguishers in Class B and C fire places 6.
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2) The hook and bracket shall be installed according to the following requirements: ① The portable fire extinguisher set on the hook and bracket can be easily accessed by hand.
The design calculation of fire extinguisher allocation 1) After determining the protection area of the calculation unit, the minimum fire extinguishing level of the fire extinguishers that should be configured in the unit should be calculated according to the following formula: Q=K * S/U, where Q – the minimum fire extinguishing level (A or B) of the calculation unit.
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The setting of wheeled fire extinguisher The wheeled fire extinguisher is usually set on a flat ground, not on a step.