What is a labor protection shoe?
The labor protection shoe is a kind of shoe that has safety protective effect to foot ministry. There are many kinds of it, such as protection of toe, puncture, insulation, acid and alkali. The selection of labor protection shoes should be carried out according to the hazardous nature and hazard degree of the working environment. Labor protection shoes should have product qualification certificate and product specification. Read the instruction manual before use and use the correct method. Special protective shoes should be checked and kept clean and stored in a dry and clean place.
Classification and common functions of labor protection shoes.
The labor protection shoes are generally divided into three kinds: anti-lock shoes, anti-puncture and anti-puncture, and electric insulating labor protection shoes (voltage withstand >6 kv).
The protection shoe and the steel head labor protection shoes are the same kind, that is to protect the toe of the safety of the shoes, the main function is to prevent falling objects and hurt the foot.
Puncture protection shoes are used to protect the soles of the feet and prevent them from being stabbed by various sharp objects.
Other special USES for use and labor protection shoes are also included:
A place for oil or oil splashing in the area;
Water-proof and protective shoes for use on ground water or splash water;
Cold protection shoes are used to protect the feet of low-temperature workers so as to avoid frostbite.
The main function of steelmaking labor protection shoes is to prevent burning and cutting, and it should be able to withstand certain static pressure and certain temperature and not flammable. This kind of labor protection shoe is suitable for smelting, furnace, cast iron and so on.
In addition to the above, there are some special labor protection shoes cover, such as canvas, asbestos, aluminum film material, and so on. Choose the main Chinese shoes to see if the manufacturer obtain the national industrial products production license, "LA safety mark certification, whether to have test report of the standards, testing method is correct, the result is true.
Performance analysis of labor protection shoes.
Baotou impact resistance performance.
Provisions of the weight of steel impact hammer impact test, baotou baotou when the clearance height should be less than specified value, and the axis of the baotou in the test should not be any penetrating crack. It is noteworthy that the weight, specification, impact height and structure of the testing machine are different in national standards, and should be distinguished in actual testing.
The test machine is equipped with a pressure plate, which is equipped with a test pin, and the test pin is a cutting tip. The hardness of the nail head should be greater than 60HRC. Put sole sample machine chassis, position can make the nail pierced through the outsole test, the test pin to 10 mm/min + / - 3 mm/min speed puncture the soles, until penetration, the most vigorously for the record. Select 4 points on each sole for testing (at least one of them is in the heel), the points are not less than 30mm apart, and the distance from the inner bottom edge is greater than 10 mm. The bottom of the anti-skid block should be punctured between blocks. Two of the four points should be tested within a distance of 10 to 15 mm from the edge of the implant. If the humidity will affect the results, the test should be before the sole in 20 ℃ + 2 ℃ deionized water for 16 + 1 h.
Electrical properties of conductive shoes and antistatic shoes.
Shaping the adjusted in the dry and wet air, the clean steel ball filled people inside the shoe and into the metal probe device, using the specified resistance test instrument, measuring the front two resistance between the probe and third probe. In general, conductive shoes require resistance not greater than l00K ohm; The resistance should be between 100K ohm and 100M ohm.
The selection of labor protection shoes should be carried out according to the hazardous nature and hazard degree of the working environment. Labor protection shoes should have product qualification certificate and product specification. Read the instruction manual before use and use the correct method. Special protective shoes should be checked and kept clean and stored in a dry and clean place.