How to distinguish the quality of active protection net?

The main products of the slope protection net system can be divided into two types: active protection net system and passive protection net system: the system uses steel wire rope as the main component and two basic types of covering (active protection) and interception (passive protection) to prevent and control various types Slope
The main products of the slope protection net system can be divided into two types: active protection net system and passive protection net system: the system uses steel wire rope as the main component and two basic types of covering (active protection) and interception (passive protection) to prevent and control various types Flexible safety protection system technology and products for slope geological disasters and avalanches, bank erosion, blasting flying rocks, falling objects and other hazards.
The passive protection system is composed of steel wire rope net, high-strength iron wire grid net, anchor rod, I-steel column, up and down anchor rope, energy dissipation ring, base and upper and lower support ropes. The system is composed of steel columns and steel rope nets to form a whole, which forms slope protection for the protected area, thereby preventing the falling of collapsed rocks and playing a role in slope protection.
The characteristics of the steel rope net passive protection net system are: the strength is sufficient to absorb and disperse the expected impact kinetic energy of falling rocks, and the design and use of the energy dissipation ring further improve the impact resistance of the system. Compared with rigid interception and mortar retaining walls: the original construction technology is changed. The construction period and funds are reduced.
The active protection net system is used to cover or wrap various flexible nets, mainly wire rope nets, on slopes or rocks that need to be protected to limit the weathering, spalling or damage of the rock and soil on the slope and the collapse of dangerous rocks (reinforcement), or Control the falling rock within a certain range of movement (enclosure function); the latter function should be attributed to passive protection in nature, but in the SNS system because its structure is similar to the active protection system that plays a role of reinforcement, it is still classified as active Protection, and distinguish the two as standard active protection and active-passive protection. When the active-passive protection system covers the working surface of the blasting excavation, a flexible safety protection system is formed to prevent the hazards of blasting flying rocks.