Depending on the career choices helmet colors

Depending on the career choices helmet color , miners helmets with black , apparently do not meet safety ergonomic principles , because the mine lighting is poor, the black miners hat in the chiaroscuro obvious, easy to blurred vision and accidents.

    1 should choose qualified products
    Helmets must be produced according to the national standard GB2811, manufactured products through quality inspection departments should meet the standard requirements in order to issue the product certification. When purchasing a  HENGDA fire helmet, you should see whether it holds the production license and valid , whether Lao flag (LA).
    2 Select the appropriate species
    ( 1 ) helmet performance options based on : Each helmet has certain technical performance and its scope of application. For example, in low-temperature operating environment and select a helmet , you should choose low-temperature -resistant plastic helmet ( after environmental testing cold -20 ℃ ± 2 ℃ , shock absorbing properties and puncture resistance still meet the standard requirements ) and cold helmet ; at high temperatures high-temperature operating environment should choose plastic or fiberglass helmet helmet ( treated 50 ℃ ± 2 ℃ high temperature , shock absorbing properties and puncture resistance still meet the standard requirements ) ; contact with the grid in the power industry , electrical equipment should be selected with electricity insulation helmet ; operating in explosive environments should choose antistatic properties ( resistance of less than 1 × 109Ω) helmet .
    ( 2 ) According to the specifications, size selection.
    ( 3 ) the choice of style , big -brimmed hat and a large tongue cap applies to open-air operations , this HENGDA fire helmets has the role of anti- sun and rain . Small -brimmed hat for indoor , tunnels, culverts, roadway , forests, small-scale scaffolding superior activity , prone to collisions narrow brim places .
    ( 4 ) colors on the helmet , safety should follow the principle of psychology . International more common yellow with black stripe , is caused by warning signs, red is a restriction, prohibition signs ; blue display from the role . Therefore, the use of helmets ordinary jobs to adopt white , yellow, light green is appropriate. Miners helmets , coal habit with black color, which may be due to coal dust is black tarnish helmet can not see, but other colors are very easy to detect. But the miners with black helmet , obviously does not meet the safety ergonomic principles , because the mine lighting is poor, the black miners hat in the chiaroscuro obvious, easy to blurred vision and accidents.
    It should be in bright colors, easy to find cause alarm. Now miners cap color besides black , there are other colors, and stick reflective material on the helmet or light emitting material in order to attract attention in the dark lighting. Some departments use different color helmet to distinguish job title , such as security management personnel wearing a green and white cross marked helmets , maintenance personnel wearing orange helmets. Forest harvesting operations in space , red or orange helmet eye-catching , easy to be found. Radioactive operating environment is usually purple , brown helmet . Explosive workplace , the use of red helmets.