Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 3: Requirements for bushing fixations; German version EN 50180-3:2015— 12 стр.
High-strength structural bolting assemblies for preloading - Part 10: System HRC - Bolt and nut assemblies with calibrated preload; German version EN 14399-10:2018— 31 стр.
High-strength structural bolting assemblies for preloading - Part 3: System HR - Hexagon bolt and nut assemblies; German version EN 14399-3:2015— 33 стр.
High-strength structural bolting assemblies for preloading - Part 7: System HR - Countersunk head bolt and nut assemblies; German version EN 14399-7:2018— 30 стр.