Then different configuration points are distributed in each unit, each configuration point should not be more than 1 to 5, and the total number of each unit should not be less than 2 fire extinguishers

Then calculate how many fire extinguishers are required in the unit (the level is defined according to the dangerous level place and the configuration standard), and then calculate how many fire extinguishing levels are required for the setting points. For example, the unit point needs 3A fire extinguishers divided by 1 set points (set points are determined according to the importance of protection distance, etc.) = 3A, and then what type is selected, such as MF/ABC5 or 6)

1. Inspection of fire extinguishers and fire extinguisher box quality assurance documents

1. Inspection contents

Check the fire extinguishers and their accessories, fire extinguisher box's certification documents that meet the market access requirements, factory certificate, use and maintenance instructions; Check the consistency of products with market access documents and fire protection design documents.

2. Inspection method

Consult relevant information and check the consistency with the fire extinguishers and their accessories and fire extinguisher box present.

3. Qualification criteria

Fire extinguishers and fire extinguisher box quality assurance documents are judged to be qualified if they meet the following requirements; otherwise, they are judged to be unqualified:

(1) The quality assurance documents of various types and specifications of fire extinguishers and their accessories, fire extinguisher box and luminous indication signs meet the market access requirements, and there is an inspection report that the statutory fire protection product inspection agency has passed the type inspection. Check the copies of the quality assurance documents, which are consistent with the original ones.

(2) Each fire extinguisher, its hook, bracket and other accessories, fire extinguisher box, and luminous indication signs have corresponding factory certificates.

(3) The appearance, logo, specifications, structural components, materials, performance parameters, manufacturer's name and address of the fire extinguisher and fire extinguisher box on site are consistent with their type inspection reports.

(4) The types, specifications and quantities of fire extinguisher box, fire extinguishers and their accessories, as well as the fire extinguishing level of fire extinguishers, are consistent with the requirements of the fire protection design documents of construction projects that have passed the fire protection design review and filing inspection.

(5) Each fire extinguisher and its accessories have an instruction manual, which includes instructions, warnings and tips on installation, operation and maintenance of the fire extinguisher and its accessories; There are also tips for reading the manufacturer's maintenance manual when repairing and refilling the fire extinguisher.

(II) On-site quality inspection in fire extinguisher box

1. Inspection of appearance marks

(1) Inspection contents: Check fire extinguisher box marks, nameplates, instructions for use and flip-over fire extinguisher box opening marks.

(2) inspection method: visually inspect the contents of appearance marks, and measure the size of text marks with a ruler.

(3) Criteria for judging conformity

If the following requirements are met, the appearance marks of fire extinguisher box are judged as qualified.

① The monogamous Fire extinguisher box is marked with Chinese "fire extinguisher" and English "Fire Extinguisher" on the front; Fire extinguisher box, a self-rescue respirator combination, is marked with Chinese "self-rescue respirator" and English "Respirator for self-rescue" on the front, and is marked with Chinese "fire extinguisher" and English "fire Extinguisher" on the bottom; Fire hydrant box Fire extinguisher box is marked with Chinese fire hydrant, English fire hydrant, Chinese fire extinguisher and English fire extinguisher on the front of fire hydrant box and fire extinguisher box respectively. Logo fonts are eye-catching, uniform and complete.

② use a ruler to measure the font size, which shall not be less than 3mm×6mm (width× height).

③ A luminous sign is pasted on the front of fire extinguisher box.

④ A durable nameplate is set in the lower right corner of the front of fire extinguisher box, which includes product name, model specification, registered trademark or manufacturer's name, production address, production date or product batch number, implementation standard, etc.

⑤ the flip fire extinguisher box is marked with the opening direction on the flip cover.

2. Appearance quality inspection of fire extinguisher box

(1) Inspection contents: check the machining quality of fire extinguisher box, the installation quality of accessories and parts and their tolerances, etc.

(2) inspection method: visually inspect the machining quality of fire extinguisher box, and measure the assembly tolerance of parts with straightedge and vernier caliper.

(3) Eligibility criteria

If the following requirements are met, fire extinguisher box is judged to be qualified by appearance quality inspection:

① There are no uneven surfaces in fire extinguisher box, no burning-through, flash, burr, riveting, wrinkles and other obvious machining defects on the surface of stamping parts.

(2) fire extinguisher box box has no distortion such as skew and warping, and the land-based fire extinguisher box has no inclination and shaking on the horizontal ground.

③ The anti-corrosion coating on the surface of fire extinguisher box made of non-corrosive metal materials is smooth and even, with no defects such as marks, cracks, bubbles, scratches, bumps, peeling and rust.

④ After the door of the open-door fire extinguisher box is closed in place, it is flush with the surrounding frame surface, and the gap between it and the frame is even and straight, which does not affect the opening of the door.

The measured results of vernier caliper show that the flatness tolerance of the door is not more than 2mm, the height of the parts protruding from the outside surface of the door on the front of fire extinguisher box is not more than 15mm, and the height of other parts protruding from the outside surface is not more than 1mm; The maximum clearance between the door and the frame is no more than 2.5mm after the measured inspection by the feeler gauge.

⑤ According to the measured results of vernier calipers, the protruding of the flip fire extinguisher box box cover is not more than 2mm on the front, not more than 45mm on the side and not less than 15 mm..

3. Inspection of the box structure and the opening performance of the box door (cover)

(1) Inspection contents: Check the flip fire extinguisher box structure, the open fire extinguisher box door structure and their opening performance.

(2) inspection method: visually inspect the structure and opening performance of the flip-type fire extinguisher box and open-type fire extinguisher box doors, measure their opening strength with dynamometer in the vertical direction of the doors and covers, and measure their opening angles with protractor.

(3) Criteria for judging eligibility

If the following requirements are met, the box structure and door performance of the fire extinguisher are judged to be qualified:

① The upper baffle on the front of the flip fire extinguisher box can flip and fall after the box cover is opened.

② The door of the open-door fire extinguisher box is equipped with a door locking device, and there is no lock.

(3) fire extinguisher box door and lid are easy to open, and there is no jam.

(4) The opening force is not more than 5N after the dynamometer test; The opening angle of the box door is not less than 165, and the opening angle of the box cover is not less than 1.