With the development of science and technology, the protection and adaptability of old helmets can no longer meet the requirements of modern fire fighting work. Therefore, many countries have developed new composite helmets. China's original fire helmet, the hat type follows the form of military helmet, and the material is phenolic FRP. Subsequently, the plug-in protective mask and combined waterproof shawl were added to improve the fire and heat insulation performance. Later, the cap liner was improved to increase the safety distance between caps and improve the impact absorption performance.
1984165438+1October, China developed and produced a new type of fire helmet with beautiful appearance, reasonable structural design, light weight, puncture resistance, impact resistance, radiant heat resistance, waterproof, sandstorm resistance and corrosion resistance. The cap shell adopts single rib foil type and is injection molded with polycarbonate. The inner cavity is spacious and full, and the forehead is splayed, which can not only enhance the rigidity of the cap shell, improve the impact resistance, but also reduce the weight. Some bottle caps are also labeled with fluorescent identification marks, which is convenient for firefighters to find and contact in the dark or at night.
Second, how to distinguish the performance of the fire helmet?
The quality of fire helmets should be evaluated through six parts, namely, the requirements for matching with fire suits, the logo on each fire helmet, helmet form, helmet specification requirements, performance requirements and sample evaluation requirements. Bian Xiao will introduce you to the fire helmet from these six aspects.
1, which meets the requirements of GA633-2006 "Protective Clothing for Emergency Rescue of Firefighters". At the same time, it has passed the relevant certification of fire protection products in the United States or Europe and imported as a whole. Provide a complete copy and a complete original when bidding. At the same time, provide a copy of the original manual of the regular product and the original color page of the regular product.
2. Each fire helmet shall be clearly and permanently marked with the following contents:
(1) "Implementation standard: GA 633-2006";
(2) Model and specification;
(3) the name or trademark of the manufacturer;
(4) Identification number or manufacturing year of the manufacturer's fire helmet;
(5) Inspection marks.
3, fire helmet form:
(1) red, semi-helmet design, including the main parts such as the cap shell, wearing device, goggles and chin strap.
(2) The size of the hoop can be adjusted flexibly and conveniently, and the forehead part of the contact head should be breathable and sweat-absorbing.
(3) The helmet bracket and buffer layer are in good shape, do not shift, and are comfortable to wear.
(4) The length of the chin strap of the fire helmet should be flexibly and conveniently adjusted to ensure the stability and comfort of the helmet; The top of the helmet should be equipped with ventilation system.
4, specification requirements:
The adjustable range of (1) chin strap is (350-500)mm, and non-toxic flame retardant materials with no natural harm to human body should be selected;
(2) Reflective identification belt shall be 3m brand;
(3) The main body is red;
(4) Protective goggles shall be of the same brand as the fire helmet and can be used together.
5. Performance requirements:
(1) Impact absorption function of fire helmet: ≤3780N.
(2) Flame retardancy: After the fire source leaves the cap shell, the flame goes out after 5s.
(3) Mass: ≤800g (excluding goggles and other accessories).
6, sample review requirements (this is only as a bid sample review requirements, not in the technical index score points)
(1) The surface of the cap shell is smooth, and there are no appearance defects such as stains, bubbles and defects.
(2) The installation of each part of the fire helmet shall be in place, firm and straight, without looseness or slippage.
(3) There is a certain gap between the cap holder and the buffer layer.
(4) The wearing comfort of the fire helmet is good, the size adjustment of the helmet hoop is convenient and quick, and the field of vision is good, which does not conflict with the equipment such as air call.
(5) Goggles are of good quality and the same brand as helmets. They are firmly worn, and they will not loosen their heads, shake their heads and bend over. Comfortable to wear, no discomfort to eyes, face and other contact parts.