FirefightersFire protection clothingIt is a protective clothing worn by firefighters in order to protect themselves from fire and strong radiant heat when they enter the fire, cross the fire area for a short time or carry out fire fighting and rescue in the fire area for a short time.

The firefighter's fire protection suit adopts a split structure and consists of five parts, namely a hood, a protective jacket with a respirator backpack, protective pants, protective gloves and boots.

Principle and functional characteristics: according to the fire environment and fire practice for firefightersFire protection clothingFirefighters wearing fire shelters need to enter the fire scene to put out the fire under the condition of direct contact with the flame of about 1000 ℃, so as to protect the personal safety of firefighters. The eight-layer fabric combination structure with low thermal conductivity, excellent thermal insulation performance and high temperature steam resistance is adopted to resist the attack of strong radiant heat, heat conduction and high temperature steam.

The first and second layers are high temperature resistant fireproof layers. The main component of this layer of fabric is silica (content of more than 96%), which has high thermal and chemical stability. In the case of 1000 ℃ flame temperature F, it still has a high strength retention rate after long-term use, which can protect and support the lining material well, and other high temperature resistant fabrics with the same performance can also be used. In order to prevent hooking, piercing, abrasion, etc. at the fire scene, and to better improve the safety of clothing, the surface layer adopts a double-layer structure, and even if the outer layer is damaged, there is still a two-layer support.

The third and fourth layers are fire resistant insulation layers. The main component of the layer is oxidized fiber felt, which has good fire resistance, heat insulation and wear resistance, and is low in price. Due to the low thermal conductivity of air, double-layer felt is usually selected. The air layer between the two layers of felt can further improve the thermal insulation properties of the clothes.

The fifth layer is a waterproof reflective layer. Usually use flame retardant cotton composite aluminum foil cloth, not only has the function of waterproof, high temperature steam resistance, but also has the function of radiation heat resistance.

The sixth layer and the seventh layer are flame retardant insulating layers. The layer adopts flame retardant glue felt, which has low cost, double-layer structure and good heat insulation effect. Two layers of insulation have been added to further improve the insulation of the garment.

The eighth layer is the comfort layer. This layer is made of flame-retardant pure cotton cloth with a certain strength, which is mainly used for comfort and has a certain supporting effect on the flame-retardant insulating layer.

Technical performance parameters:

1. Flame retardant properties of the outer fabric. The supplementary burning time is not more than ls, and the fuming time is not more than 2s. The length of the damage shall not exceed 20mm.

2. The outer fabric is strong enough to tear. The warp and weft tear strength shall not be less than 32N.

3. The radiant heat penetration resistance of the entire composite layer fabric. After the 13.6kw/m2 radiant heat scene is irradiated for 120s, the temperature rise of the inner surface shall not exceed 25 ℃.

4. Flame retardancy of the entire composite layer. After burning on a flame at 1000°C for 30 seconds, the temperature rise on its inner surface shall not exceed 25°C.

5. Overall thermal resistance. When the mannequin is worn at 1000°C, the surface temperature rise received by the mannequin after 30 seconds shall not exceed 13°C.

6. Appearance quality. There shall be no contamination, disconnection and damage. The accessories shall be assembled firmly without looseness or falling off.

Usage: Before use, carefully check the fireman'sFire protection clothingWhether damaged. If the clothes are damaged, it is strictly prohibited to use. Firefighters' protective clothing to avoid fires is slightly heavier than other clothing and requires assistance when wearing it. Firefighters must wear air breathing apparatus and communication equipment when using fire shelters to ensure normal breathing and contact with commanders in high temperatures.

Wearing steps are to put on pants and boots, fasten the straps, fasten the pants, put on the air respirator on the back, put on the coat, firmly stick the buckle, cover the overlapping part tightly, and then fasten the hook.