Firefighters personal protective equipment and protective clothing standards of ordinary

Clothing protective equipment mainly refers to avoid firefighters subjected to high temperatures, drugs and other harmful environmental damage clothing, helmets, boots, hats, glasses and so on. There are fire-fighting suits, insulated clothing, avoid the fire service, disaster relief and clothing.

First, the battle suit and its supporting apparatus

Fire fighting services are firefighters put out the fire into the general fire fighting to protect themselves while wearing protective clothing, suitable for the fire "normal" state of use. Fire fighting services sub eighty-five style to the 1997 ceremony. Currently fire squadron equipped mostly eighty-five type fire fighting services, the clothing is divided into winter clothing, Xiafu, fireproof and waterproof clothing long fire suits four types, suitable for general fire fighting, does not apply near the fire and rescue operations help. 97 combat clothing is the latest successful research as a fire fighting service, with fire, flame, heat insulation, anti-virus and other functions, suitable for fire fighting and rescue work part.

1, fire on the human body

Burns, radiation, steam burns, frostbite, fatigue

2, fire fighter clothing work status

"Normal" state corresponds eleven firefighters operation in the face of the fire with water, or leaving the fire state a certain distance, the radiation heat flux 1.5kw/m2 below the temperature at below 60 ℃.

"Dangerous" state - the equivalent outside the room in a burning, or burning in a small building outside of the case with its radiant heat flux 1.5kw/m2 ~ 13.6kw/m2, temperature at 60 ℃ ~ 300 ℃ range.

"Critical" state - equivalent to similar violent burning in the vicinity of the crashed plane, or the occurrence of flashover situation encountered, the radiant heat flux 13.6kw/m2 ~ 200kw/m2, the temperature of 300 ℃ ~ 1100 ℃ range.

3, fire fighting services should have the protection and the associated measurement method

(1) Flame retardant (vertical burning test)

The 12-inch long strips of cloth placed in a propane flame to burn after 12 seconds, remove and measure the flame continued burning time, fire-retardant cloth carbonization time and length.

(2) Thermal Protective Performance (TPP)

① Thermal Protective Performance (TPP) Test: the fabric is placed convection and radiant heat source, the time required for recording two burns.

Time X heat source heat = TPP value

② TPP test method

TPP test is a 6 square inches of fabric placed on the total energy 2cal/cm2.sec thermal convection and radiant heat source, and then recording the time required to achieve the second degree burns, TPP value that is multiplied by the time cal/cm2. sec value. And vertical burning test different, TPP test can tell us simulate human skin through a variety of different fabrics to achieve two burns the amount of energy to be absorbed, ie the higher the value of the TPP fabric for the body exposed to high temperatures and the heat of the flame under the protection of the higher, the unit value of the TPP is the most direct thermal protective performance body connection.

③ hot human instrument thermal protection test (Thermo-man?)

To further simulate the actual extent of the flame burns the body, used to test the actual set of clothes in a simulated fire conditions, the degree of protection offered by the clothes. With this test, we can predict the body burns suffered two and three degrees, the body burns degrees lower, the greater the chance of survival.

Human body model test is to contain 122 temperature testers made from special glass-epoxy six inches high mannequin wearing fireproof suits, and make it the exposure to 12 propane flamethrower set synthetic 2cal / cm2.sec heat, the computer according to the temperature testers from 122 collected data to simulate human skin may be affected by the two and three degree burns and location.

4, protective performance

1) with a permanent protective function;
2) does not melt and does not have the function of combustion;
3) having the function is not broken;
4) resistance to chemical corrosion features;
5) durability;
6) comfort.