The impact test of the helmet shall not exceed the force of the delivery die
By the classification of material: plastic, rubber, glass, steel, and paper plant weaving Aluminum Alloy glue.According to a classification: 50-70, 30-50, 0-30mmThe classification according to the workplace: general job classes and special working class. Low temperature, fire source, live electricity, etc..
The impact test of the helmet shall not exceed 4900N.
(a) sign: there should be a certificate of safety and safety certification on the helmet, and have the following permanent identification: the name of the factory, the number of the production license and the date of production.B) selection and useIt must check whether the safety cap crack, scratch, uneven wear, before use (including the cap liner inspection), a safety cap as there are obvious defects affecting the performance of it should be promptly scrapped, so as not to affect the protective effect.It can not be in a safety cap to remove or add attachments, so as not to affect its original protective performance.It can adjust the size of the cap liner. Safety helmet internal dimensions such as vertical spacing, wear height, horizontal spacing, there are strict rules of the standard, these dimensions directly affect the safety performance of the cap, the user must be adjusted, otherwise, litter impact event, helmets for wearing loose leaves or because of the impact and not to touch the top the protective effect of direct injury to the wearer.The use must be safety cap, wearing prison, can not shake, to fasten the chin strap, after adjustment to prevent the safety helmet off band.Is not to punch on the safety helmet, safety helmet, not collision free, not the safety helmet when the bench, so as not to affect its strength.
The shell includes a visor, brim, top bar, air hole, socket etc..The hat lining is the floorboard of the inside parts of the cap shell. Including cap hoop, top belt, guard belt, sweat absorption belt, liner, chin belt and tie rope.
When object damage, falling height, mechanical damage, pollution and other damage factors occur, each part of the helmet will decompose and absorb the impact force through deformation and reasonable destruction.
