BS EN 60721-3-4. Classification of environmental conditions. Part 3. Classification of groups of environmental parameters and their severities. Section 4. Stationary use at non-weather protected locations— 17 стр.
Classification of environmental conditions - Part 2-9: Environmental conditions appearing in nature - Measured shock and vibration data - Storage, transportation and in-use— 38 стр.
High-voltage switchgear and controlgear - Part 210: Seismic qualification for metal enclosed and solid-insulation enclosed switchgear and controlgear assemblies for rated voltages above 1 kV and up to and including 52 kV— 58 стр.