Tough times call for sophisticated engineering solutions.
The current edition of SP 542.1325800.2024, covering the design of protective structures against UAVs, came into force on 26 January 2025. However, attacks continue, and official reports regularly contain information about damage to industrial, energy and other critical facilities.
At the same time, practical experience is accumulating: how nets, cables and support structures behave upon impact, which solutions prove insufficient, and what needs to be taken into account in structural calculations.
As a result, Amendment No. 1 to SP 542 has already been prepared. The public consultation has been completed, and on 25 August 2026, Rosstandart published the second draft edition of the amendment.
What changes are being proposed?
1. Expand the range of permitted materials
Protective interception structures will be allowed to use not only wire mesh, but also welded mesh, composite, polymer and textile nets.
The key requirement is to demonstrate their load-bearing capacity. For polymer, composite and textile materials, testing will be required, including tests to determine their flammability characteristics.
2. Design for impact rather than a hypothetical UAV fall
Instead of applying a load corresponding to a “UAV fall”, the draft introduces the concept of dynamic impact.
The design must consider different impact direct
