What's the concept of being charged with 200 joules? On the performance of steel shoes for labor protection shoes
The impact energy of 200 joules (200N.m), that is, the kinetic energy produced by falling objects of about 20 kilograms from a height of 1 meters.
The concept of the impact of 200 joules of energy is actually inaccurate, as this ability involves two important factors, the size of the bearing surface and the length of time it takes. The damage level will be greatly reduced if the load is large and there is a buffer (long duration).
Assessment time, must be bound to the surface, such as: impact area is standardized, the surface of no buffer medium, the surface does not bear displacement.
