The sharp angle will have fatal consequences for the horizontal cutting of the rope. When the rope is bearing the weight, the rope can be easily cut with a sharp object. In UIAA’s standard anti-cutting test, it is required to drop an 80 kg weight from a height of 5 meters, and the rope is cut on the edge of a sharp object with a radius of 5 mm placed horizontally. In the first such experiment, the rope should not be damaged. Only in this way can it pass the anti-cutting index test. The anti-cutting index of climbing ropes of different brands varies greatly. For example, the EDEIWEISS rope produced in Austria can withstand up to 6-7 times of similar tests. Some types of climbing ropes can even withstand a sharp edge cutting test with a radius of 0.75mm. Under the circumstances, most of the other climbing ropes were cut.
Tie a 10 kg weight to the climbing rope, rub it longitudinally on the rotating sand wheel, until the outer net of the rope is touched (that is, the rope is white as climbers often say), and the time when the rope is worn out directly reflects the rope. Longitudinal wear resistance. Generally speaking, the climbing power rope with the PERDUR logo has a wear resistance of more than 30% longer than other ropes in similar tests.